Modular I/O System. DeviceNet ,

Transcription

1 Modular I/O System , Manual Technical Description, Installation and Configuration Version 1.0.0

2 ii General Copyright 2007 by WAGO Kontakttechnik GmbH & Co. KG All rights reserved. WAGO Kontakttechnik GmbH & Co. KG Hansastraße 27 D Minden Phone: +49 (0) 571/ Fax: +49 (0) 571/ info@wago.com Web: Technical Support Phone: +49 (0) 571/ Fax: +49 (0) 571/ support@wago.com Every conceivable measure has been taken to ensure the correctness and completeness of this documentation. However, as errors can never be fully excluded we would appreciate any information or ideas at any time. documentation@wago.com We wish to point out that the software and hardware terms as well as the trademarks of companies used and/or mentioned in the present manual are generally trademark or patent protected.

3 Table of Contents iii TABLE OF CONTENTS 1 Important Notes Legal Principles Copyright Personnel Qualification Conforming Use of Series Technical Condition of the Devices Standards and Regulations for Operating the 750 Series Symbols Safety Information Font Conventions Number Notation Scope Abbreviation The System Description Technical Data Manufacturing Number Component Update Storage, Assembly and Transport Mechanical Setup Installation Position Total Expansion Assembly onto Carrier Rail Carrier rail properties WAGO DIN Rail Spacing Plugging and Removal of the Components Assembly Sequence Internal Bus/Data Contacts Power Contacts Wire connection Power Supply Isolation System Supply Connection Alignment Field Supply Connection Fusing Supplementary power supply regulations Supply example Power Supply Unit Grounding Grounding the DIN Rail Framework Assembly Insulated Assembly...41

4 iv Table of Contents Grounding Function Grounding Protection Shielding (Screening) General Bus Conductors Signal Conductors WAGO Shield (Screen) Connecting System Assembly Guidelines/Standards Fieldbus Coupler/Controller Fieldbus Coupler Description Hardware View Device Supply Fieldbus Connection Display Elements Configuration Interface Hardware Address (MAC ID) Setting the Baud Rate Operating System Process Image Data Exchange Communication Interfaces Memory Areas Addressing Configuration Software Starting up Fieldbus Nodes Connecting the PC and Fieldbus Node Setting the MAC ID and Baud Rate Configuration with Static Assembly LED Display Node status Blink code from the 'I/O' LED Supply voltage status Technical Data Fieldbus Controller Description Hardware View Device Supply Fieldbus Connection Display Elements Configuration and Programming Interface Operating Mode Switch Hardware Address (MAC ID) Setting the Baud Rate Operating System Start-up PLC Cycle Process Image...84

5 Table of Contents v Data Exchange Communication Interfaces Memory Areas Addressing Programming the PFC with WAGO-I/O-PRO WAGO-I/O-PRO 32 Library Elements IEC Program Transfer Special Features of the Controller Connection via the UCMM port Offline Connection Set Shutdown Dynamic Assembly Change MAC ID by SW Heartbeat Bit-Strobe Configuration Software Starting-up Fieldbus Nodes Connecting the PC and Fieldbus Node Setting the MAC ID and Baud Rate Configuration with Static and Dynamic Assembly LED Display Node status Blink code from the 'I/O' LED Supply voltage status Technical Data Description Network Architecture Transmission Media Type of Cable Cable Types Maximum Bus Length Cabling Network Topology Network Grounding Interface Modules Network Communication Objects, Classes, Instances and Attributes Module Characteristics Communication Model Message Groups Message Types I/O Messaging Connections Process data and Diagnostic Status Process Image Assembly Instances Configuration / Parametering with the Object Model EDS Files Object Model Object Model for Coupler and Controller

6 vi Table of Contents Supplement to the Object Model for Controller I/O Modules Overview Digital Input Modules Digital Output Modules Analog Intput Modules Analog Output Modules Special Modules System Modules Process Data Architecture for Digital Input Modules Digital Output Modules Analog Input Modules Analog Output Modules Specialty Modules System Modules Use in Hazardous Environments Foreword Protective measures Classification meeting CENELEC and IEC Divisions Explosion protection group Unit categories Temperature classes Types of ignition protection Classifications meeting the NEC Divisions Explosion protection groups Temperature classes Identification For Europe For America Installation regulations Glossary Literature List Index...199

7 Important Notes 7 Legal Principles 1 Important Notes 1.1 Legal Principles Copyright This section provides only a summary of the most important safety requirements and notes which will be mentioned in the individual sections. To protect your health and prevent damage to the devices, it is essential to read and carefully follow the safety guidelines. This manual including all figures and illustrations contained therein is subject to copyright. Any use of this manual which infringes the copyright provisions stipulated herein, is not permitted. Reproduction, translation and electronic and phototechnical archiving and amendments require the written consent of WAGO Kontakttechnik GmbH & Co. KG, Minden. Non-observance will entail the right of claims for damages. WAGO Kontakttechnik GmbH & Co. KG reserves the right of changes serving technical progress. All rights developing from the issue of a patent or the legal protection of utility patents are reserved to WAGO Kontakttechnik GmbH & Co. KG. Thirdparty products are always indicated without any notes concerning patent rights. Thus, the existence of such rights must not be excluded Personnel Qualification The use of the product described in this manual requires special qualifications, as shown in the following table: Activity Electrical specialist Instructed personnel*) Assembly X X Specialists**) having qualifications in PLC programming Commissioning X X Programming Maintenance X X Troubleshooting Disassembly X X X *) Instructed persons have been trained by qualified personnel or electrical specialists. **) A specialist is someone who, through technical training, knowledge and experience, demonstrates the ability to meet the relevant specifications and identify potential dangers in the mentioned field of activity. All personnel must be familiar with the applicable standards. WAGO Kontakttechnik GmbH & Co. KG declines any liability resulting from X

8 8 Important Notes Standards and Regulations for Operating the 750 Series improper action and damage to WAGO products and third party products due to non-observance of the information contained in this manual Conforming Use of Series 750 The couplers and controllers of the modular I/O System 750 receive digital and analog signals from the I/O modules and sensors and transmit them to the actuators or higher level control systems. Using the WAGO controllers, the signals can also be (pre-)processed. The device is designed for IP20 protection class. It is protected against finger touch and solid impurities up to 12.5mm diameter, but not against water penetration. Unless otherwise specified, the device must not be operated in wet and dusty environments Technical Condition of the Devices For each individual application, the components are supplied from the factory with a dedicated hardware and software configuration. Changes in hardware, software and firmware are only admitted within the framework of the possibilities documented in the manuals. All changes to the hardware or software and the non-conforming use of the components entail the exclusion of liability on the part of WAGO Kontakttechnik GmbH & Co. KG. Please direct any requirements pertaining to a modified and/or new hardware or software configuration directly to WAGO Kontakttechnik GmbH & Co. KG. 1.2 Standards and Regulations for Operating the 750 Series Please observe the standards and regulations that are relevant to your installation: The data and power lines must be connected and installed in compliance with the standards to avoid failures on your installation and eliminate any danger to personnel. For installation, startup, maintenance and repair, please observe the accident prevention regulations of your machine (e.g. BGV A 3, "Electrical Installations and Equipment"). Emergency stop functions and equipment must not be made ineffective. See relevant standards (e.g. DIN EN 418). Your installation must be equipped in accordance to the EMC guidelines so that electromagnetic interferences can be eliminated. Operating 750 Series components in home applications without further measures is only permitted if they meet the emission limits (emissions of interference) according to EN You will find the relevant information in the section on "" "System Description" "Technical Data".

9 Important Notes 9 Symbols 1.3 Symbols Please observe the safety measures against electrostatic discharge according to DIN EN /-3. When handling the modules, ensure that the environment (persons, workplace and packing) is well grounded. The relevant valid and applicable standards and guidelines concerning the installation of switch cabinets are to be observed. Danger Always observe this information to protect persons from injury. Warning Always observe this information to prevent damage to the device. Attention Marginal conditions that must always be observed to ensure smooth and efficient operation. ESD (Electrostatic Discharge) Warning of damage to the components through electrostatic discharge. Observe the precautionary measure for handling components at risk of electrostatic discharge. Note Make important notes that are to be complied with so that a trouble-free and efficient device operation can be guaranteed. Additional Information References to additional literature, manuals, data sheets and INTERNET pages.

10 10 Important Notes Safety Information 1.4 Safety Information When connecting the device to your installation and during operation, the following safety notes must be observed: Danger The and its components are an open system. It must only be assembled in housings, cabinets or in electrical operation rooms. Access is only permitted via a key or tool to authorized qualified personnel. Danger All power sources to the device must always be switched off before carrying out any installation, repair or maintenance work. Warning Replace defective or damaged device/module (e.g. in the event of deformed contacts), as the functionality of fieldbus station in question can no longer be ensured on a long-term basis. Warning The components are not resistant against materials having seeping and insulating properties. Belonging to this group of materials is: e.g. aerosols, silicones, triglycerides (found in some hand creams). If it cannot be ruled out that these materials appear in the component environment, then the components must be installed in an enclosure that is resistant against the above mentioned materials. Clean tools and materials are generally required to operate the device/module. Warning Soiled contacts must be cleaned using oil-free compressed air or with ethyl alcohol and leather cloths. Warning Do not use contact sprays, which could possibly impair the functioning of the contact area. Warning Avoid reverse polarity of data and power lines, as this may damage the devices. ESD (Electrostatic Discharge) The devices are equipped with electronic components that may be destroyed by electrostatic discharge when touched.

11 Important Notes 11 Font Conventions 1.5 Font Conventions italic italic Names of paths and files are marked in italic. e.g.: C:\Programs\WAGO-IO-CHECK Menu items are marked in bold italic. e.g.: Save \ A backslash between two names characterizes the selection of a menu point from a menu. e.g.: File \ New END Press buttons are marked as bold with small capitals e.g.: ENTER < > Keys are marked bold within angle brackets e.g.: <F5> Courier The print font for program codes is Courier. e.g.: END_VAR 1.6 Number Notation Number code Example Note Decimal 100 Normal notation Hexadecimal 0x64 C notation Binary '100' ' ' Within ', Nibble separated with dots

12 12 Important Notes Scope 1.7 Scope Item no. 1.8 Abbreviation Description fieldbus Coupler ; kbaud prog. Fieldbus Controller ; kbaud AI AO BC CAL CAN DI DIP DO EDS I/O ID Idx ISO/ OSI M MAC ID MS NMT NS PFC RO RW Analog Input Analog Output BusCoupler CAN Application Layer Controller Area Network Digital Input Dual In-line Package Digital Output Electronic Data Sheets Input/Output Identifier, Identification Index International Organization for Standardization / Open Systems Interconnection (model) Master Media Access Control Identifier (nodeaddress) Module Status Network Management Network Status Programmable fieldbus Controller Read Only Read/Write

13 The 13 System Description 2 The 2.1 System Description The is a modular, fieldbus independent I/O system. It is comprised of a fieldbus coupler/controller (1) and connected fieldbus modules (2) for any type of signal. Together, these make up the fieldbus node. The end module (3) completes the node. Fig. 2-1: Fieldbus node g0xxx00x Couplers/controllers for fieldbus systems such as PROFIBUS, INTERBUS, ETHERNET TCP/IP, CAN (CANopen,, CAL), MODBUS, LON and others are available. The coupler/controller contains the fieldbus interface, electronics and a power supply terminal. The fieldbus interface forms the physical interface to the relevant fieldbus. The electronics process the data of the bus modules and make it available for the fieldbus communication. The 24 V system supply and the 24 V field supply are fed in via the integrated power supply terminal. The fieldbus coupler communicates via the relevant fieldbus. The programmable fieldbus controller (PFC) enables the implementation of additional PLC functions. Programming is done with the WAGO-I/O-PRO 32 in accordance with IEC Bus modules for diverse digital and analog I/O functions as well as special functions can be connected to the coupler/controller. The communication between the coupler/controller and the bus modules is carried out via an internal bus. The has a clear port level with LEDs for status indication, insertable mini WSB markers and pullout group marker carriers. The 3-wire technology supplemented by a ground wire connection allows for direct sensor/actuator wiring.

14 14 The Technical Data 2.2 Technical Data Mechanic Material Polycarbonate, Polyamide 6.6 Dimensions W x H* x L * from upper edge of DIN 35 rail - Coupler/Controller (Standard) - Coupler/Controller (ECO) - Coupler/Controller (FireWire) - I/O module, single - I/O module, double - I/O module, fourfold Installation modular by Mounting position - 51 mm x 65 mm x 100 mm - 50 mm x 65 mm x 100 mm - 62 mm x 65 mm x 100 mm - 12 mm x 64 mm x 100 mm - 24 mm x 64 mm x 100 mm - 48 mm x 64 mm x 100 mm on DIN 35 with interlock double featherkey-dovetail any position Marking marking label type 247 and 248 paper marking label 8 x 47 mm Connection Connection type CAGE CLAMP Wire range 0.08 mm² mm², AWG Stripped length Contacts Power jumpers contacts Current via power contacts max Voltage drop at I max Data contacts Climatic environmental conditions Operating temperature 8 9 mm, 9 10 mm for components with pluggable wiring (753-xxx) blade/spring contact self-cleaning 10 A < 1 V/64 modules slide contact, hard gold plated 1.5 µm, self-cleaning Storage temperature -20 C C Relative humidity 0 C C, -20 C +60 C for components with extended temperature range (750-xxx/025-xxx) 5 % to 95 % without condensation Resistance to harmful substances acc. to IEC and IEC Maximum pollutant concentration at relative humidity < 75% Special conditions SO 2 25 ppm H 2 S 10 ppm Ensure that additional measures for components are taken, which are used in an environment involving: dust, caustic vapors or gasses ionization radiation.

15 The 15 Technical Data Safe electrical isolation Air and creepage distance acc. to IEC Degree of pollution acc. To IEC Degree of protection Degree of protection IP 20 Electromagnetic compatibility 2 Immunity to interference for industrial areas acc. to EN (2001) Test specification Test values Strength class EN ESD 4 kv/8 kv (contact/air) 2/3 B EN electromagnetic fields 10 V/m 80 MHz... 1 GHz 3 A EN burst 1 kv/2 kv (data/supply) 2/3 B EN surge EN RF disturbances Data: DC supply: AC supply: -/- (line/line) 1 kv (line/earth) kv (line/line) kv (line/earth) 1 1 kv (line/line) 2 2 kv (line/earth) 3 10 V/m 80 % AM ( MHz) Evaluation criteria B B B 3 A Emission of interference for industrial areas acc. to EN (2001) Test specification Limit values/[qp]*) Frequency range Distance EN (AC supply, conducted) EN (radiated) 79 db (µv) 150 khz khz 73 db (µv) 500 khz MHz 40 db (µv/m) 30 MHz MHz 10 m 47 db (µv/m) 230 MHz... 1 GHz 10 m Emission of interference for residential areas acc. to EN (2001) Test specification Limit values/[qp]*) Frequency range Distance EN (AC supply, conducted) EN (DC supply/data, conducted) EN (radiated) db (µv) 150 khz khz 56 db (µv) 500 khz... 5 MHz 60 db (µv) 5 MHz MHz db (µa) 150 khz khz 30 db (µa) 500 khz MHz 30 db (µv/m) 30 MHz MHz 10 m 37 db (µv/m) 230 MHz... 1 GHz 10 m

16 16 The Technical Data Mechanical strength acc. to IEC Test specification Frequency range Limit value IEC vibration IEC shock IEC free fall *) QP: Quasi Peak 5 Hz f < 9 Hz 1.75 mm amplitude (permanent) 3.5 mm amplitude (short term) 9 Hz f < 150 Hz 0.5 g (permanent) 1 g (short term) Note on vibration test: a) Frequency change: max. 1 octave/minute b) Vibration direction: 3 axes 15 g Note on shock test: a) Type of shock: half sine b) Shock duration: 11 ms c) Shock direction: 3x in positive and 3x in negative direction for each of the three mutually perpendicular axes of the test specimen 1 m (module in original packing) Note: If the technical data of components differ from the values described here, the technical data shown in the manuals of the respective components shall be valid.

17 The 17 Technical Data For Products of the with ship specific approvals, supplementary guidelines are valid: Electromagnetic compatibility Immunity to interference acc. to Germanischer Lloyd (2003) Test specification Test values Strength class IEC ESD 6 kv/8 kv (contact/air) 3/3 B IEC electromagnetic fields 10 V/m 80 MHz... 2 GHz 3 A IEC burst 1 kv/2 kv (data/supply) 2/3 A IEC surge IEC RF disturances Type test AF disturbances (harmonic waves) Type test high voltage AC/DC Supply: 0.5 kv (line/line) 1 1 kv (line/earth) 2 10 V/m 80 % AM ( MHz) Evaluation criteria A 3 A 3 V, 2 W - A 755 V DC 1500 V AC Emission of interference acc. to Germanischer Lloyd (2003) - - Test specification Limit values Frequency range Distance Type test (EMC1, conducted) allows for ship bridge control applications db (µv) 10 khz khz db (µv) 150 khz khz 50 db (µv) 350 khz MHz Type test db (µv/m) 150 khz khz 3 m (EMC1, radiated) allows for ship bridge control db (µv/m) 300 khz MHz 3 m applications 54 db (µv/m) 30 MHz... 2 GHz 3 m außer für: 24 db (µv/m) 156 MHz MHz 3 m Mechanical strength acc. to Germanischer Lloyd (2003) Test specification Frequency range Limit value IEC vibration (category A D) 2 Hz f < 25 Hz ± 1.6 mm amplitude (permanent) 25 Hz f < 100 Hz 4 g (permanent) Note on vibration test: a) Frequency change: max. 1 octave/minute b) Vibration direction: 3 axes

18 18 The Technical Data Range of application Required specification emission of interference Required specification immunity to interference Industrial areas EN (2001) EN (2001) Residential areas EN (2001)*) EN (2001) *) The system meets the requirements on emission of interference in residential areas with the fieldbus coupler/controller for: ETHERNET /-841/-842/-860 LonWorks CANopen MODBUS / / / /-314/ -315/ /-814/ -815/ -816 With a special permit, the system can also be implemented with other fieldbus couplers/controllers in residential areas (housing, commercial and business areas, small-scale enterprises). The special permit can be obtained from an authority or inspection office. In Germany, the Federal Office for Post and Telecommunications and its branch offices issues the permit. It is possible to use other field bus couplers/controllers under certain boundary conditions. Please contact WAGO Kontakttechnik GmbH & Co. KG. Maximum power dissipation of the components Bus modules Fieldbus coupler/controller 0.8 W / bus terminal (total power dissipation, system/field) 2.0 W / coupler/controller Warning The power dissipation of all installed components must not exceed the maximum conductible power of the housing (cabinet). When dimensioning the housing, care is to be taken that even under high external temperatures, the temperature inside the housing does not exceed the permissible ambient temperature of 55 C.

19 The 19 Technical Data Dimensions A B 24V 0V C D A B C D A B C D A B C D A B C D Side view Dimensions in mm Fig. 2-2: Dimensions g01xx05e Note: The illustration shows a standard coupler. For detailed dimensions, please refer to the technical data of the respective coupler/controller.

20 20 The Manufacturing Number 2.3 Manufacturing Number The manufacturing number indicates the delivery status directly after production. This number is part of the lateral marking on the component. In addition, starting from calender week 43/2000 the manufacturing number is also printed on the cover of the configuration and programming interface of the fieldbus coupler or controller. PROFIBUS WAGO - I/O - SYSTEM V DC AWG C max ambient LISTED 22ZA AND 22XM B B GL NO DS SW HW FWL Hansastr. 27 D Minden ITEM-NO.: PROFIBUS DP 12 MBd /DPV1 - Power Supply Field + 24 V 0V Power Supply Electronic PATENTS PENDING II 3 GD DEMKO 02 ATEX X EEx na II T B Calendar week Manufacturing Number Year Software version - B Hardware version Firmware Loader version Internal Number Fig. 2-3: Example: Manufacturing Number of a PROFIBUS fieldbus coupler g01xx15e The manufacturing number consists of the production week and year, the software version (if available), the hardware version of the component, the firmware loader (if available) and further internal information for WAGO Kontakttechnik GmbH.

21 The 21 Component Update 2.4 Component Update For the case of an Update of one component, the lateral marking on each component contains a prepared matrix. This matrix makes columns available for altogether three updates to the entry of the current update data, like production order number (NO; starting from calendar week 13/2004), update date (DS), software version (SW), hardware version (HW) and the firmware loader version (FWL, if available). Update Matrix Current Version data for: Production Order NO Number Datestamp DS Software index Hardware index SW HW Firmware loader index FWL 1. Update 2. Update 3. Update Only starting from calendar week 13/2004 Only for coupler/ controller If the update of a component took place, the current version data are registered into the columns of the matrix. Additionally with the update of a fieldbus coupler or controller also the cover of the configuration and programming interface of the coupler or controller is printed on with the current manufacturing and production order number. The original manufacturing data on the housing of the component remain thereby. 2.5 Storage, Assembly and Transport Wherever possible, the components are to be stored in their original packaging. Likewise, the original packaging provides optimal protection during transport. When assembling or repacking the components, the contacts must not be soiled or damaged. The components must be stored and transported in appropriate containers/packaging. Thereby, the ESD information is to be regarded. Statically shielded transport bags with metal coatings are to be used for the transport of open components for which soiling with amine, amide and silicone has been ruled out, e.g. 3M 1900E.

22 22 The Mechanical Setup 2.6 Mechanical Setup Installation Position Along with horizontal and vertical installation, all other installation positions are allowed. Attention In the case of vertical assembly, an end stop has to be mounted as an additional safeguard against slipping. WAGO item End stop for DIN 35 rail, 6 mm wide WAGO item End stop for DIN 35 rail, 10 mm wide Total Expansion The length of the module assembly (including one end module of 12mm width) that can be connected to the coupler/controller is 780mm. When assembled, the I/O modules have a maximum length of 768mm. Examples: 64 I/O modules of 12mm width can be connected to one coupler/controller. 32 I/O modules of 24mm width can be connected to one coupler/controller. Exception: The number of connected I/O modules also depends on which type of coupler/controller is used. For example, the maximum number of I/O modules that can be connected to a Profibus coupler/controller is 63 without end module.the maximum total expansion of a node is calculated as follows: Warning The maximum total length of a node without coupler/controller must not exceed 780mm. Furthermore, restrictions made on certain types of couplers/controllers must be observed (e.g. for Profibus).

23 The 23 Mechanical Setup Assembly onto Carrier Rail Carrier rail properties All system components can be snapped directly onto a carrier rail in accordance with the European standard EN (DIN 35). Warning WAGO supplies standardized carrier rails that are optimal for use with the I/O system. If other carrier rails are used, then a technical inspection and approval of the rail by WAGO Kontakttechnik GmbH should take place. Carrier rails have different mechanical and electrical properties. For the optimal system setup on a carrier rail, certain guidelines must be observed: The material must be non-corrosive. Most components have a contact to the carrier rail to ground electromagnetic disturbances. In order to avoid corrosion, this tin-plated carrier rail contact must not form a galvanic cell with the material of the carrier rail which generates a differential voltage above 0.5 V (saline solution of 0.3% at 20 C). The carrier rail must optimally support the EMC measures integrated into the system and the shielding of the bus module connections. A sufficiently stable carrier rail should be selected and, if necessary, several mounting points (every 20 cm) should be used in order to prevent bending and twisting (torsion). The geometry of the carrier rail must not be altered in order to secure the safe hold of the components. In particular, when shortening or mounting the carrier rail, it must not be crushed or bent. The base of the I/O components extends into the profile of the carrier rail. For carrier rails with a height of 7.5 mm, mounting points are to be riveted under the node in the carrier rail (slotted head captive screws or blind rivets).

24 24 The Mechanical Setup WAGO DIN Rail WAGO carrier rails meet the electrical and mechanical requirements. Item Number Description / x 7.5; 1 mm; steel yellow chromated; slotted/unslotted / x 15; 1.5 mm; steel yellow chromated; slotted/unslotted x 15; 2.3 mm; steel yellow chromated; unslotted x 15; 2.3 mm; copper; unslotted x 7.5; 1 mm; aluminum; unslotted Spacing The spacing between adjacent components, cable conduits, casing and frame sides must be maintained for the complete field bus node. Fig. 2-4: Spacing g01xx13x The spacing creates room for heat transfer, installation or wiring. The spacing to cable conduits also prevents conducted electromagnetic interferences from influencing the operation.

25 2.6.5 Plugging and Removal of the Components The 25 Mechanical Setup Warning Before work is done on the components, the voltage supply must be turned off. In order to safeguard the coupler/controller from jamming, it should be fixed onto the carrier rail with the locking disc To do so, push on the upper groove of the locking disc using a screwdriver. To pull out the fieldbus coupler/controller, release the locking disc by pressing on the bottom groove with a screwdriver and then pulling the orange colored unlocking lug. Fig. 2-5: Coupler/Controller and unlocking lug g01xx12e It is also possible to release an individual I/O module from the unit by pulling an unlocking lug. Fig. 2-6: removing bus terminal p0xxx01x Danger Ensure that an interruption of the PE will not result in a condition which could endanger a person or equipment! For planning the ring feeding of the ground wire, please see chapter

26 26 The Mechanical Setup Assembly Sequence All system components can be snapped directly on a carrier rail in accordance with the European standard EN (DIN 35). The reliable positioning and connection is made using a tongue and groove system. Due to the automatic locking, the individual components are securely seated on the rail after installing. Starting with the coupler/controller, the bus modules are assembled adjacent to each other according to the project planning. Errors in the planning of the node in terms of the potential groups (connection via the power contacts) are recognized, as the bus modules with power contacts (male contacts) cannot be linked to bus modules with fewer power contacts. Attention Always link the bus modules with the coupler/controller, and always plug from above. Warning Never plug bus modules from the direction of the end terminal. A ground wire power contact, which is inserted into a terminal without contacts, e.g. a 4-channel digital input module, has a decreased air and creepage distance to the neighboring contact in the example DI4. Always terminate the fieldbus node with an end module ( ).

27 The 27 Mechanical Setup Internal Bus/Data Contacts Communication between the coupler/controller and the bus modules as well as the system supply of the bus modules is carried out via the internal bus. It is comprised of 6 data contacts, which are available as self-cleaning gold spring contacts. Fig. 2-7: Data contacts p0xxx07x Warning Do not touch the gold spring contacts on the I/O modules in order to avoid soiling or scratching! ESD (Electrostatic Discharge) The modules are equipped with electronic components that may be destroyed by electrostatic discharge. When handling the modules, ensure that the environment (persons, workplace and packing) is well grounded. Avoid touching conductive components, e.g. gold contacts.

28 28 The Mechanical Setup Power Contacts Self-cleaning power contacts, are situated on the side of the components which further conduct the supply voltage for the field side. These contacts come as touchproof spring contacts on the right side of the coupler/controller and the bus module. As fitting counterparts the module has male contacts on the left side. Danger The power contacts are sharp-edged. Handle the module carefully to prevent injury. Attention Please take into consideration that some bus modules have no or only a few power jumper contacts. The design of some modules does not allow them to be physically assembled in rows, as the grooves for the male contacts are closed at the top. Fig. 2-8: Example for the arrangement of power contacts g0xxx05e Recommendation With the WAGO ProServe Software smartdesigner, the assembly of a fieldbus node can be configured. The configuration can be tested via the integrated accuracy check.

29 The 29 Mechanical Setup Wire connection All components have CAGE CLAMP connections. The WAGO CAGE CLAMP connection is appropriate for solid, stranded and fine stranded conductors. Each clamping unit accommodates one conductor. Fig. 2-9: CAGE CLAMP Connection g0xxx08x The operating tool is inserted into the opening above the connection. This opens the CAGE CLAMP. Subsequently the conductor can be inserted into the opening. After removing the operating tool, the conductor is safely clamped. More than one conductor per connection is not permissible. If several conductors have to be made at one connection point, then they should be made away from the connection point using WAGO Terminal Blocks. The terminal blocks may be jumpered together and a single wire brought back to the I/O module connection point. Attention If it is unavoidable to jointly connect 2 conductors, then a ferrule must be used to join the wires together. Ferrule: Length 8 mm Nominal cross section max. 1 mm 2 for 2 conductors with 0.5 mm 2 each WAGO Product or products with comparable properties

30 30 The Power Supply 2.7 Power Supply Isolation Within the fieldbus node, there are three electrically isolated potentials. Operational voltage for the fieldbus interface. Electronics of the couplers/controllers and the bus modules (internal bus). All bus modules have an electrical isolation between the electronics (internal bus, logic) and the field electronics. Some digital and analog input modules have each channel electrically isolated, please see catalog. Fig. 2-10: Isolation g0xxx01e Attention The ground wire connection must be present in each group. In order that all protective conductor functions are maintained under all circumstances, it is recommended that a ground wire be connected at the beginning and end of a potential group. (ring format, please see chapter "2.8.3"). Thus, if a bus module comes loose from a composite during servicing, then the protective conductor connection is still guaranteed for all connected field devices. When using a joint power supply unit for the 24 V system supply and the 24 V field supply, the electrical isolation between the internal bus and the field level is eliminated for the potential group.

31 The 31 Power Supply System Supply Connection The requires a 24 V direct current system supply (-15% or +20 %). The power supply is provided via the coupler/controller and, if necessary, in addition via the internal system supply modules ( ). The voltage supply is reverse voltage protected. Attention The use of an incorrect supply voltage or frequency can cause severe damage to the component. Fig. 2-11: System Supply g0xxx02e The direct current supplies all internal system components, e.g. coupler/controller electronics, fieldbus interface and bus modules via the internal bus (5 V system voltage). The 5 V system voltage is electrically connected to the 24 V system supply. Fig. 2-12: System Voltage g0xxx06e

32 32 The Power Supply Attention Resetting the system by switching on and off the system supply, must take place simultaneously for all supply modules (coupler/controller and ) Alignment Recommendation A stable network supply cannot be taken for granted always and everywhere. Therefore, regulated power supply units should be used in order to guarantee the quality of the supply voltage. The supply capacity of the coupler/controller or the internal system supply module ( ) can be taken from the technical data of the components. Internal current consumption*) Residual current for bus terminals*) *) cf. catalogue W4 Volume 3, manuals or Internet Current consumption via system voltage: 5 V for electronics of the bus modules and coupler/controller Available current for the bus modules. Provided by the bus power supply unit. See coupler/controller and internal system supply module ( ) Example Coupler : internal current consumption:350 ma at 5V residual current for bus modules : 1650 ma at 5V sum I(5V) total : 2000 ma at 5V The internal current consumption is indicated in the technical data for each bus terminal. In order to determine the overall requirement, add together the values of all bus modules in the node. Attention If the sum of the internal current consumption exceeds the residual current for bus modules, then an internal system supply module ( ) must be placed before the module where the permissible residual current was exceeded. Example: A node with a PROFIBUS Coupler consists of 20 relay modules ( ) and 10 digital input modules ( ). Current consumption: 20* 90 ma = 1800 ma 10* 2 ma = 20 ma Sum 1820 ma The coupler can provide 1650 ma for the bus modules. Consequently, an internal system supply module ( ), e.g. in the middle of the node, should be added.

33 The 33 Power Supply Recommendation With the WAGO ProServe Software smartdesigner, the assembly of a fieldbus node can be configured. The configuration can be tested via the integrated accuracy check. The maximum input current of the 24 V system supply is 500 ma. The exact electrical consumption (I (24 V) ) can be determined with the following formulas: Coupler/Controller I(5 V) total = Sum of all the internal current consumption of the connected bus modules + internal current consumption coupler/controller I(5 V) total = Sum of all the internal current consumption of the connected bus modules Input current I(24 V) = 5 V / 24 V * I(5 V) total / η η = 0.87 (at nominal load) Note If the electrical consumption of the power supply point for the 24 V-system supply exceeds 500 ma, then the cause may be an improperly aligned node or a defect. During the test, all outputs, in particular those of the relay modules, must be active.

34 34 The Power Supply Field Supply Connection Sensors and actuators can be directly connected to the relevant channel of the bus module in 1-/4 conductor connection technology. The bus module supplies power to the sensors and actuators. The input and output drivers of some bus modules require the field side supply voltage. The coupler/controller provides field side power (DC 24V). In this case it is a passive power supply without protection equipment. Power supply modules are available for other potentials, e.g. AC 230 V. Likewise, with the aid of the power supply modules, various potentials can be set up. The connections are linked in pairs with a power contact. Fig. 2-13: Field Supply (Sensor/Actuator) g0xxx03e The supply voltage for the field side is automatically passed to the next module via the power jumper contacts when assembling the bus modules. The current load of the power contacts must not exceed 10 A on a continual basis. The current load capacity between two connection terminals is identical to the load capacity of the connection wires. By inserting an additional power supply module, the field supply via the power contacts is disrupted. From there a new power supply occurs which may also contain a new voltage potential.

35 The 35 Power Supply Attention Some bus modules have no or very few power contacts (depending on the I/O function). Due to this, the passing through of the relevant potential is disrupted. If a field supply is required for subsequent bus modules, then a power supply module must be used. Note the data sheets of the bus modules. In the case of a node setup with different potentials, e.g. the alteration from DC 24 V to AC 230V, a spacer module should be used. The optical separation of the potentials acts as a warning to heed caution in the case of wiring and maintenance works. Thus, the results of wiring errors can be prevented Fusing Internal fusing of the field supply is possible for various field voltages via an appropriate power supply module V DC, Supply/Fuse V AC, Supply/Fuse V AC, Supply/Fuse V DC, Supply/Fuse/Diagnosis V AC, Supply/Fuse/Diagnosis Fig. 2-14: Supply module with fuse carrier (Example ) g0xxx09x

36 36 The Power Supply Warning In the case of power supply modules with fuse holders, only fuses with a maximum dissipation of 1.6 W (IEC 127) must be used. For UL approved systems only use UL approved fuses. In order to insert or change a fuse, or to switch off the voltage in succeeding bus modules, the fuse holder may be pulled out. In order to do this, use a screwdriver for example, to reach into one of the slits (one on both sides) and pull out the holder. Fig. 2-15: Removing the fuse carrier p0xxx05x Lifting the cover to the side opens the fuse carrier. Fig. 2-16: Opening the fuse carrier p0xxx03x Fig. 2-17: Change fuse p0xxx04x After changing the fuse, the fuse carrier is pushed back into its original position.

37 The 37 Power Supply Alternatively, fusing can be done externally. The fuse modules of the WAGO series 281 and 282 are suitable for this purpose. Fig. 2-18: Fuse modules for automotive fuses, Series 282 pf66800x Fig. 2-19: Fuse modules with pivotable fuse carrier, Series 281 pe61100x Fig. 2-20: Fuse modules, Series 282 pf12400x

38 38 The Power Supply Supplementary power supply regulations The can also be used in shipbuilding or offshore and onshore areas of work (e.g. working platforms, loading plants). This is demonstrated by complying with the standards of influential classification companies such as Germanischer Lloyd and Lloyds Register. Filter modules for 24-volt supply are required for the certified operation of the system. Item No. Name Description Supply filter Filter module for system supply and field supply (24 V, 0 V), i.e. for field bus coupler/controller and bus power supply ( ) Supply filter Filter module for the 24 V- field supply ( , , ) Therefore, the following power supply concept must be absolutely complied with. Fig. 2-21: Power supply concept g01xx11e Note Another potential power terminal /602/610 must only be used behind the filter terminal if the protective earth conductor is needed on the lower power contact or if a fuse protection is required.

39 The 39 Power Supply Supply example Note The system supply and the field supply should be separated in order to ensure bus operation in the event of a short-circuit on the actuator side. L1 L2 L3 N PE a) b) 1) 1) c) d) ) 2) Shield (screen) bus Main ground bus System Supply 10 A 230V 24V Field Supply 230V 24V Field Supply Fig. 2-22: Supply example 10 A 1) Separation module recommended 2) Ring-feeding recommended a) Power Supply on coupler / controller via external Supply Module b) Internal System Supply Module c) Supply Module passive d) Supply Module with fuse carrier/ diagnostics g0xxx04e

40 40 The Power Supply Power Supply Unit The requires a 24 V direct current system supply with a maximum deviation of -15% or +20 %. Recommendation A stable network supply cannot be taken for granted always and everywhere. Therefore, regulated power supply units should be used in order to guarantee the quality of the supply voltage. A buffer (200 µf per 1 A current load) should be provided for brief voltage dips. The I/O system buffers for approx 1 ms. The electrical requirement for the field supply is to be determined individually for each power supply point. Thereby all loads through the field devices and bus modules should be considered. The field supply as well influences the bus modules, as the inputs and outputs of some bus modules require the voltage of the field supply. Note The system supply and the field supply should be isolated from the power supplies in order to ensure bus operation in the event of short circuits on the actuator side. WAGO products Article No. Description Primary switched - mode, DC 24 V, 5 A wide input voltage range AC V PFC (Power Factor Correction) Primary switched - mode, DC 24 V, 10 A wide input voltage range AC V PFC (Power Factor Correction) Primary switched - mode, DC 24 V, 2 A wide input voltage range AC V PFC (Power Factor Correction) Rail-mounted modules with universal mounting carrier AC 115 V / DC 24 V; 0,5 A AC 230 V / DC 24 V; 0,5 A AC 230 V / DC 24 V; 2 A AC 115 V / DC 24 V; 2 A

41 The 41 Grounding 2.8 Grounding Grounding the DIN Rail Framework Assembly Insulated Assembly When setting up the framework, the carrier rail must be screwed together with the electrically conducting cabinet or housing frame. The framework or the housing must be grounded. The electronic connection is established via the screw. Thus, the carrier rail is grounded. Attention Care must be taken to ensure the flawless electrical connection between the carrier rail and the frame or housing in order to guarantee sufficient grounding. Insulated assembly has been achieved when there is constructively no direct conduction connection between the cabinet frame or machine parts and the carrier rail. Here the earth must be set up via an electrical conductor. The connected grounding conductor should have a cross section of at least 4 mm 2. Recommendation The optimal insulated setup is a metallic assembly plate with grounding connection with an electrical conductive link with the carrier rail. The separate grounding of the carrier rail can be easily set up with the aid of the WAGO ground wire terminals. Article No. Description Single-conductor ground (earth) terminal block make an automatic contact to the carrier rail; conductor cross section: mm2 Note: Also order the end and intermediate plate ( )

42 42 The Grounding Grounding Function The grounding function increases the resistance against disturbances from electro-magnetic interferences. Some components in the I/O system have a carrier rail contact that dissipates electro-magnetic disturbances to the carrier rail. Fig. 2-23: Carrier rail contact g0xxx10e Attention Care must be taken to ensure the direct electrical connection between the carrier rail contact and the carrier rail. The carrier rail must be grounded. For information on carrier rail properties, please see chapter

43 The 43 Grounding Grounding Protection For the field side, the ground wire is connected to the lowest connection terminals of the power supply module. The ground connection is then connected to the next module via the Power Jumper Contact (PJC). If the bus module has the lower power jumper contact, then the ground wire connection of the field devices can be directly connected to the lower connection terminals of the bus module. Attention Should the ground conductor connection of the power jumper contacts within the node become disrupted, e.g. due to a 4-channel bus terminal, the ground connection will need to be re-established. The ring feeding of the grounding potential will increase the system safety. When one bus module is removed from the group, the grounding connection will remain intact. The ring feeding method has the grounding conductor connected to the beginning and end of each potential group. Fig. 2-24: Ring-feeding g0xxx07e Attention The regulations relating to the place of assembly as well as the national regulations for maintenance and inspection of the grounding protection must be observed.

44 44 The Shielding (Screening) 2.9 Shielding (Screening) General The shielding of the data and signal conductors reduces electromagnetic interferences thereby increasing the signal quality. Measurement errors, data transmission errors and even disturbances caused by overvoltage can be avoided. Attention Constant shielding is absolutely required in order to ensure the technical specifications in terms of the measurement accuracy. The data and signal conductors should be separated from all high-voltage cables. The cable shield should be potential. With this, incoming disturbances can be easily diverted. The shielding should be placed over the entrance of the cabinet or housing in order to already repel disturbances at the entrance Bus Conductors The shielding of the bus conductor is described in the relevant assembly guidelines and standards of the bus system Signal Conductors Bus modules for most analog signals along with many of the interface bus modules include a connection for the shield. Note For better shield performance, the shield should have previously been placed over a large area. The WAGO shield connection system is suggested for such an application. This suggestion is especially applicable when the equipment can have even current or high impulse formed currents running through it (for example through atmospheric end loading).

45 2.9.4 WAGO Shield (Screen) Connecting System The 45 Assembly Guidelines/Standards The WAGO Shield Connecting system includes a shield clamping saddle, a collection of rails and a variety of mounting feet. Together these allow many dfferent possibilities. See catalog W4 volume 3 chapter 10. Fig. 2-25: WAGO Shield (Screen) Connecting System p0xxx08x, p0xxx09x, and p0xxx10x Fig. 2-26: Application of the WAGO Shield (Screen) Connecting System p0xxx11x 2.10 Assembly Guidelines/Standards DIN 60204, DIN EN EN Electrical equipping of machines Equipping of high-voltage systems with electronic components (replacement for VDE 0160) Low voltage switch box combinations

46 46 Fieldbus Coupler Description 3 Fieldbus Coupler/Controller 3.1 Fieldbus Coupler Description The fieldbus Coupler displays the peripheral data of all I/O modules in the on Feldbus. The data is transmitted with objects. The bus Coupler determines the physical structure of the node and creates a process image from this with all inputs and outputs. This could involve a mixed arrangement of analog (word by word data exchange) and digital (byte by byte data exchange) modules. The local process image is subdivided into an input and output data area. The process data can be read in via the bus and further processed in a control system. The process output data is sent via the bus. The data of the analog modules are mapped into the automatical created process image according to the order of their position downstream of the bus Coupler. The bits of the digital modules are compiled to form bytes and also mapped into the process image attached to the data of the analog modules. Should the number of digital I/Os exceed 8 bits, the Coupler automatically starts another byte. The fieldbus Coupler supports the function Bit-Strobe, whereby the function is insofar restricted, that only the status byte will be delivered.

47 ON Fieldbus Coupler Hardware Hardware View Fieldbus connection Series 231 (MCS) OVERFL MS RUN BUS OFF NS CONNECT I/O A B V 0V + + C D Status voltage supply -Power jumper contacts -System Data contacts Supply 24V 0V Supply via power jumper contacts 24V Ñ Ñ DIP switch for MAC ID and baud rate PE PE 0V Configuration interface Power jumper contacts flap opened Fig. 3-1: Fieldbus Coupler g030600e The fieldbus Coupler comprises of: Supply module with Internal system supply module for the system supply as well as power jumper contacts for the field supply via I/O module assemblies. Fieldbus interface with the bus connection DIP switch for baud rate and MAC ID Display elements (LED's) for status display of the operation, the bus communication, the operating voltages as well as for fault messages and diagnosis Configuration interface Electronics for communication with the I/O modules (internal bus) and the fieldbus interface

48 48 Fieldbus Coupler Hardware Device Supply The supply is made via terminal blocks with CAGE CLAMP connection. The device supply is intended both for the system and the field units. 24V V/0V 10nF DC DC Bus modules 0V FIELDBUS INTERFACE ELECTRONICS V 0V 24V 0V 10nF ELECTRONICS FIELDBUS INTERFACE 1) 2) 1) 1M 2) 10nF/500V Fig. 3-2: Device supply g030601e The integrated internal system supply module generates the necessary voltage to supply the electronics and the connected I/O modules. The fieldbus interface is supplied with electrically isolated voltage from the internal system supply module.

49 Fieldbus Coupler Hardware Fieldbus Connection For the field bus connection, the interface is equipped with a 5 pole header, its counter-piece being a plug connector (Open Style Connector). The scope of delivery includes the plug connector / / from the WAGO MULTI CONNECTION SYSTEM. The connector has gold plated contacts and has the signal designations printed at its clamping units. The table shows the connection diagram, the colours resulting in accordance with the specification and are identical to the conductor colours of the cables. Fieldbus connection Series 231 (MCS) V+ CAN_High drain CAN_Low V- Pin Signal Code Description 5 V+ red V 4 CAN_H white CAN Signal High 3 Shield Shield connection 2 CAN_L blue CAN Signal Low 1 V- black 0 V Fig. 3-3: Fieldbus connection, MCS g012500e For the connection of small conductor cross sections, we recommend to insert an insulation stop from series (white), (light grey) or (dark grey) due to the low kink resistance. This insulation stop prevents a conductor from kinking when it hits the conductor contact point, and as such the conductor insulation from being also entered into and clamped in the connection point. Connector marking, housing components, test connectors including cables and header connectors for cable extensions are available. The connection point is lowered in such a way that after a connector is inserted, installation in an 80 mm high switchbox is possible. The electrical isolation between the fieldbus system and the electronics is made via the DC/DC converter and the optocoupler in the fieldbus.

50 50 Fieldbus Coupler Hardware Display Elements The operating condition of the fieldbus Coupler or node is signalled via light diodes (LED). Four LEDs, specific for (OVERFL, RUN, BUSOFF, CONNECT), indicate the module status (MS) and the network status (NS). OVERFL MS RUN BUS OFF NS CONNECT A B 24V 0V C D C A OVERFL MS RUN BUS OFF NS CONNECT A B 24V 0V C D A B I/O I/O Fig. 3-4: Display elements g012555x LED Color Meaning OVERFL red Errors or faults at the fieldbus Coupler. RUN green Fieldbus Coupler is ready for operation. BUS OFF red Error or malfunction at network CONNECT green I/O red/ green/ orange Fieldbus Coupler is ready for network communication. The I/O -LED indicates the operation of the node and signals faults encountered. A green Status of the operating voltage system B or C green Status of the operating voltage power jumper contacts (LED position is manufacturing dependent)

51 ON Fieldbus Coupler Hardware Configuration Interface The configuration interface used for the communication with WAGO-I/O-CHECK or for firmware transfer is located behind the cover flap. open flap Configuration interface Fig. 3-5: Configuration interface g01xx06e The communication cable ( ) is connected to the 4-pole header. Warning The communication cable must not be connected or disconnected while the coupler/controller is powered on! Hardware Address (MAC ID) The DIP switch is used both for parametrizing (setting the baud rate) of the fieldbus Coupler and for setting the MAC ID. The MAC-ID (node address) is set with the DIP switches 1 to 6 by 'sliding' the desired DIP switch to 'ON'. The binary significance of the individual DIP switches increases according to the switch number. DIP switch 1 being the lowest bit with the value 2 0 and switch 6 the highest bit with the value 2 5. Therefore the MAC ID 1 is set with DIP1 = ON, the MAC ID 8 with DIP4 = ON, etc. For the fieldbus nodes, the node address can be set within the range from 0 to ON Fig. 3-6: Example: Setting of station (node) address MAC ID 1 (DIP 1 = ON) g012540x The configuration is only read during the power up sequence. Changing the switch position during operation does not change the configuration of the bus-

52 ON 52 Fieldbus Coupler Operating System Setting the Baud Rate coupler. Turn off and on the power supply for the fieldbus coupler to accept the DIP switch change. The default setting is MAC ID 1. The fieldbus coupler supports 3 different Baud rates, 125 kbaud, 250 kbaud and 500 kbaud. DIP switches 7 and 8 are used to set the baud rate ON g012541x Fig. 3-7: Example: Setting the baud rate 250 kbaud (DIP 7 = ON) on a station (node) with the address MAC ID 1. Baud rate DIP7 DIP8 125 kbaud *) OFF OFF 250 kbaud ON OFF 500 kbaud OFF ON not allowed ON ON *) Presetting Operating System The configuration is only read during the power up sequence. Changing the switch position during operation does not change the configuration of the buscoupler. Turn off and on the power supply for the fieldbus Coupler to accept the DIP switch change. The default setting is Baud rate 125 kb. Following is the configuration of the master activation and the electrical installation of the fieldbus station. After switching on the supply voltage, the Coupler performs a self-test of all functions of its devices, the I/O module and the fieldbus interface. Following this, the I/O modules and the present configuration is determined, whereby an external, not visible list is generated. In the event of a fault, the Coupler changes to the "Stop" condition. The "I/O" LED flashes red. After clearing the fault and cycling power, the Coupler changes to the "Fieldbus start" status and the "I/O" LED lights up green.

53 Fieldbus Coupler Process Image Fig. 3-8: Operating system g012113e Process Image After powering up, the Coupler recognizes all I/O modules plugged into the node which supply or wait for data (data width/bit width > 0). In the nodes, analog and digital I/O modules can be mixed. The Coupler produces an internal process image from the data width and the type of I/O module as well as the position of the I/O modules in the node. It is divided into an input and an output data area. The data of the digital I/O modules is bit orientated, i.e. the data exchange is made bit for bit. The analog I/O modules are all byte orientated I/O modules, i.e. modules where the data exchange is made byte for byte. These I/O modules include, for example, the counter modules, I/O modules for angle and path measurement as well as the communication modules. Note For the number of input and output bits or bytes of the individual I/O modules, please refer to the corresponding I/O module description. The data of the I/O modules is separated for the local input and output process image in the sequence of their position after the Coupler in the individual process image. In the respective I/O area, analog modules are mapped first, then all digital modules, even if the order of the connected analog and digital modules does not comply with this order. The digital channels are grouped, each of these groups having a data width of 1 byte. Should the number of digital I/Os exceed 8 bits, the Coupler automatically starts another byte. Note A process image restructuring may result if a node is changed or extended. In this case, the process data addresses also change in comparison with earlier ones. In the event of adding a module, take the process data of all previous modules into account.

54 54 Fieldbus Coupler Data Exchange Data Exchange With, the transmission and exchange of data is made using objects. For a network access on the single objects of the Coupler, it is necessary to create a connection between the desired participants and to allocate connection objects. For an easy and quick set-up of a connection, the fieldbus Coupler uses the "Predefined Master/Slave Connection Set", which contains 4 pre-defined connections. For the access on the Coupler the connections only need to be allocated. The "Predefined Master/Slave Connection Set" confines itself to pure Master/Slave relationships. The fieldbus Coupler can only communicate via its assigned client and it is a so-called "Group 2 Only Server". The Group 2 Only Server communicating is only possible via the Group 2 Only Unconnected Explicit Message Port. These slaves exclusively receive messages defined in message group 2. The object configuration for the data transmission is defined by an Assembly Object. The Assembly Object can be used to group data (e.g. I/O data) into blocks (mapping) and send this data via one single communication connection. This mapping results in a reduced number of accesses to the network. A differentiation is made between "Input-Assemblies" and "Output- Assemblies". An Input-Assembly reads in data from the application via the network or produces data on the network respectively. An Output-Assembly writes data to the application or consumes data from the network respectively. Various Assembly instances are permanently programmed (static assembly) in the fieldbus Coupler. Further information The Assembly instances for the static assembly are described in chapter "Assembly Instance".

55 Fieldbus Coupler Data Exchange Communication Interfaces For a data exchange, the fieldbus Coupler is equipped with two interfaces: the interface to fieldbus (-master) and the interface to the bus modules. Data exchange takes place between the fieldbus master and the bus modules. Access from the fieldbus side is fieldbus specific Memory Areas The Coupler uses a memory space of 256 words (word ) for the physical input and output data. The division of the memory spaces is identical with all WAGO fieldbus Couplers. fieldbus coupler fieldbus memory area for input data word 0 1 I/O modules input modules word 255 memory area for output data word 0 2 output modules I O word 255 Fig. 3-9: Memory areas and data exchange for a fieldbus Coupler g012433e The Coupler process image contains the physical data of the bus modules in a storage area for input data and in a storage area for output data (word each). 1 The input module data can be read from the fieldbus side. 2 In the same manner, writing to the output modules is possible from the fieldbus side.

56 56 Fieldbus Coupler Data Exchange Addressing Fieldbus Specific Once the supply voltage is applied, the Assembly Object maps data from the process image. As soon as a connection is established, a -Master (Scanner) can address and access the data by "Class", "Instance" and "Attribute". Data mapping depends on the selected Assembly Instance of the static Assembly. Further information The Assembly Instances of the static Assembly are described in chapter "Assembly Instance". Fieldbus coupler memory area for input data word 0 1 I/O modules Connection Object Assembly Object Application Object input modules fieldbus master Producer Consumer Input- Assemly Output- Assemly word 255 memory area for output data word 0 2 output modules I O word 255 Fig. 3-1: Fieldbus specific data exchange for a fieldbus Coupler g012531e Note For the number of input and output bits or bytes of the individual I/O modules, please refer to the corresponding I/O module description. Note A process image restructuring may result if a node is changed or extended. In this case the process data addresses also change in comparison with earlier ones. In the event of adding a module, take the process data of all previous modules into account.

57 Fieldbus Coupler Data Exchange Example for static assembly (default assembly): The default assembly is: Output1 (I/O Assembly Instance 1) Input1 (I/O Assembly Instance 4) In this example, the fieldbus node arrangement looks like this: 1) 1 fieldbus coupler ( ), 2) 1 digital 4-channel input module (i. e ), 3) 1 digital 4- channel output module (i. e ), 4) 1 analog 2- channel output module with 2 bytes per channel (i. e ), 5) 1 analog 2- channel input module with 2 bytes per channel (i. e ), 6) 1 End module ( ). Input process image: Default process data, input image (Assembly Class, Instance 4) Byte low byte channel 1 1 high byte channel 1 2 low byte channel 2 3 high byte channel 2 4 not used DI04 1) DI03 1) DI02 1) DI01 1) 5 DS08 2) DS07 2) DS06 2) DS05 2) DS04 2) DS03 2) DS02 2) DS01 2) 1) DI = Digital Input 2) DS = Diagnostic Status (The last byte in the input process image is the Diagnostic Status Byte, DS01...DS08, see also: Object 0x64/Instance 1/Attr. 5) DS01 =1: internal bus error (0x01) DS02 =1: module communication error (0x02) DS04 =1: module diagnostic (0x08) DS08 =1: fieldbus error (0x80)

58 58 Fieldbus Coupler Configuration Software Output process image: Default process data, output image (Assembly Class, Instance 1) Byte low byte channel 1 1 high byte channel 1 2 low byte channel 2 3 high byte channel 2 4 not used DO04 1) DO03 1) DO02 1) DO01 1) 1) DO = Digital Output Configuration Software To enable a connection between the PLC and the fieldbus devices, the interface modules have to be configured with the individual station data. To this effect, the scope of delivery of WAGO-I/O-SYSTEM 758 includes the WAGO NETCON software intended for design and configuration, start-up and diagnosis. Further configuration software of different manufacturers include, for instance, RSNetWorx Starting up Fieldbus Nodes This chapter shows the step-by-step procedure for starting up a WAGO fieldbus node. Attention This description is given as an example and is limited to the execution of a local start-up of an individual fieldbus node. The procedure contains the following steps: 1. Connecting the PC and fieldbus node 2. Setting the MAC ID and baud rate 3. Configuration with static Assembly

59 ON ON Fieldbus Coupler Starting up Fieldbus Nodes Connecting the PC and Fieldbus Node 4. Connect the fitted fieldbus node to the fieldbus PCB in your PC via a fieldbus cable. The 24 V field bus supply is fed by an external fieldbus network power supply over the connections V+, V- of the 5-pin fieldbus connector (MCS Series 231). 5. Start your PC Setting the MAC ID and Baud Rate 6. Use the DIP switches to set the desired node address (MAC ID). The binary significance of the individual DIP switches increases according to the switch number g012443x Fig. 3-10: Example: Setting the MAC ID 4 (DIP 3 = ON). DIP switch Value DIP switches 7 and 8 are used to set the desired baud rate ON g012541x Fig. 3-11: Example: Setting the baud rate 250 kbaud (DIP 7 = ON) of the station with MAC ID 1. Baud rate DIP7 DIP8 125 kbaud *) OFF OFF 250 kbaud ON OFF 500 kbaud OFF ON not allowed ON ON *) Presetting 8. Then switch on the Coupler supply voltage.

60 60 Fieldbus Coupler Starting up Fieldbus Nodes Configuration with Static Assembly In this example, the software WAGO NETCON is used for the configuration. The node in the example consists of the following I/O modules: DI DI DI DI DODO DODO DODO AI AI AO AO Fig. 3-12: Example for a fieldbus node g012552x 1. Starting Software and EDS file load 1. Start the configuration software WAGO NETCON. 2. Load an EDS file for the fieldbus Coupler in WAGO NETCON, i. e. "4.EDS". For this click on "File/ Copy EDS" and choose the EDS-file to load. Note You can download the EDS files for the fieldbus Coupler from the Internet under: Upon downloading the EDS file into WAGO NETCON, you can create a new project and start configuring your network.

61 Fieldbus Coupler Starting up Fieldbus Nodes 2. Create a new project 3. Enter the "File" menu and click on menu point "New". 4. Select "" as the fieldbus system and confirm your selection by clicking on the "OK" button. Fig. 3-13: Select fieldbus p112501d 3. Enter Master 5. Enter a fieldbus master on the surface by clicking on the Master menu point in the "Insert" menu. A dialog window opens in which you can select the fieldbus card in your PC. Fig. 3-14: Select the fieldbus PCB / Insert Master p1x2602d 6. For the Master interface card, click in the left-hand selection window on the corresponding entry to mark it. 7. Take the Master into the right-hand window by clicking on the "Add" button and confirm by clicking on the "OK" button. Now the fieldbus master is shown on the surface as a graphic.

62 62 Fieldbus Coupler Starting up Fieldbus Nodes 4. Add a slave 8. Enter a fieldbus slave on the surface by clicking on the Device menu point in the "Insert" menu. The mouse pointer changes to the letter D with an arrow. 9. Move this mouse pointer to the graphic display of the fieldbus, then click on the left-hand mouse key. A dialog window opens permitting you to select a device. Fig. 3-15: Insert slave p012501d 10.For the fieldbus Coupler click in the left-hand selection window on the corresponding entry to mark it. 11.Take this into the right-hand window by clicking on the "Add" button and confirm by clicking on the "OK" button. The configuration is displayed on the surface as a graphic. Fig. 3-16: Configuration p012502d

63 Fieldbus Coupler Starting up Fieldbus Nodes 5. Device configuration 12.To configure the device, click on its graphic to mark it, then click on the menu point Device configuration in the "Settings" menu. A dialog window opens permitting you to proceed with the desired settings. Fig. 3-17: Device Configuration p112505d 6. Load configuration 13.To load the set configuration in the interface card, click on the master s graphic to mark it, then click on the Download menu point in the "Online" menu.

64 64 Fieldbus Coupler LED Display LED Display The Coupler possesses several LEDs for on site display of the Coupler operating status or the complete node. OVERFL MS RUN BUS OFF NS CONNECT A B C D 24V 0V C A I/O Fig. 3-18: Display elements g030602x The module status (MS) and the network status (NS) can be displayed by the top 4 LED s. They react as described in the table. Module status (MS) OVERFL (red) RUN (green) State of device Meaning off off no power No power supply to the device. off on device operational The device operates correctly. off blinking device in standby The device needs to be configured or has been partly configured. blinking off minor fault A minor fault has occurred. It exists a diagnostics. on off unrecoverable fault The device is defective, needs to be serviced or replaced. blinking blinking device self testing The device performs a built-in check. Table 3-1: Fault and status displays: MS Network status (NS) BUSOFF (red) CONNECT (green) State of device Meaning off off not powered, not online No power supply to the device / fieldbus supply / cable not connected and Duplicate MAC ID detection is not yet completed. off blinking online, not connected The device operates correctly at the fieldbus. However, it has not yet been integrated by a scanner. off on link ok online, connected The device operates correctly at the fieldbus. At least one connection to another device has been established. blinking off connection time out A minor fault has occurred (e.g. EPR is unequal 0 during a polling connection, slave is not polled any longer). on off critical link failure The device has detected a fault (duplicated MAC ID check error). It is unable to perform any more functions in the network. Table 3-2: Fault and status displays: NS

65 Fieldbus Coupler LED Display Node status Blink code from the 'I/O' LED The I/O -LED displays the communication status of the internal bus. Additionally, this LED is used to display fault codes (blink codes) in the event of a system error. LED Meaning Trouble shooting I/O Green Off Red Red Fieldbus coupler operating perfectly, Data cycle on the internal bus No data cycle on the internal bus a) During startup of fieldbus coupler: Internal bus being initialized, Startup displayed by LED flashing fast for approx. 1-2 seconds b) After startup of fieldbus coupler: Errors, which occur, are indicated by three consecutive flashing sequences. There is a short pause between each sequential flash. Evaluate the fault message (fault code and fault argument). The coupler starts up after switching on the supply voltage. The "I/O" LED blinks. The "I/O" LED has a steady light following a fault free start-up. In the case of a fault the "I/O" LED continues blinking. The fault is cyclically displayed by the blink code. Detailed fault messages are displayed with the aid of a blink code. A fault is cyclically displayed with up to 3 blink sequences. The first blink sequence (approx. 10 Hz) starts the fault display. The second blink sequence (approx. 1 Hz) following a pause. The number of blink pulses indicates the fault code. The third blink sequence (approx. 1 Hz) follows after a further pause. The number of blink pulses indicates the fault argument.

66 66 Fieldbus Coupler LED Display Switching on the power supply Coupler/Controller starts up I/O -LED is blinking Test o.k.? No Yes I/O LED 1st flash sequence (Introduction of the error indication) 1st break I/O LED 2nd flash sequence Error code (Number of flash cycles) 2nd break I/O -LED is shining I/O LED 3rd flash sequence Error argument (Number of flash cycles) ready for operation Fig. 3-19: Signalling of the LED for indication of the node status g012111e After clearing a fault, restart the coupler by cycling the power. I/O green off red red flashing cyclic red flashing Meaning Data cycle on the internal bus No data cycle on the internal bus Hardware of fieldbus coupler is defect During startup of fieldbus coupler: Internal bus being initialized, After startup of fieldbus coupler: Errors, which occur, are indicated by three consecutive flashing sequences Fault message during internal bus reset or internal error. The evaluation is made by the three consecutive flashing sequences (fault code and fault argument). Fault message of the I/O -LED 1 st flash sequence: Start of the Fault message 2 nd flash sequence: Fault code 3 rd flash sequence: Fault argument

67 Fieldbus Coupler LED Display Fault code 1: "Hardware and Configuration fault" Fault argument Fault description Trouble shooting - Invalid checksum within the parameter range of fieldbus coupler 1 Overflow of the internal buffer memory for the inline code 2 I/O module(s) with unsupported data type 3 Unknown program module type of the flash program memory 4 Fault when writing data within the flash memory 5 Fault when deleting a flash sector 6 Changed I/O module configuration determined after AUTORESET 7 Fault when writing data in the serial EEPROM 8 Invalid Hardware Firmware combination Turn off the power supply of the node, exchange the bus coupler and turn the power supply on again. Turn off the power supply of the node, reduce number of I/O modules and turn the power supply on again. If the error still exists, exchange the bus coupler. Detect faulty I/O module as follows: turn off the power supply. Place the end module in the middle of the fieldbus node. Turn the power supply on again. If the LED is still blinking, turn off the power supply and place the end module in the middle of the first half of the node (towards the coupler). If the LED doesn t blink, turn off the power supply and place the end module in the middle of the second half of the node (away from the coupler). Turn the power supply on again. Repeat this procedure until the faulty I/O module is detected. Replace the faulty I/O module. Ask about a firmware update for the fieldbus coupler. Turn off the power supply of the node, exchange the bus coupler and turn the power supply on again. Turn off the power supply of the node, exchange the bus coupler and turn the power supply on again. Turn off the power supply of the node, exchange the bus coupler and turn the power supply on again. Restart the fieldbus coupler by turning the power supply off and on again. Turn off the power supply of the node, exchange the bus coupler and turn the power supply on again. Turn off the power supply of the node, exchange the bus coupler and turn the power supply on again.

68 68 Fieldbus Coupler LED Display 9 Invalid checksum within the serial EEPROM 10 serial EEPROM initialization fault 11 Fault when reading out data from the EEPROM 12 Timeout when writing data in the EEPROM 13 - not used - 14 Maximum number of Gateway or Mailbox I/O modules exceeded Fault code 2 -not used- Turn off the power supply of the node, exchange the bus coupler and turn the power supply on again. Turn off the power supply of the node, exchange the bus coupler and turn the power supply on again. Turn off the power supply of the node, exchange the bus coupler and turn the power supply on again. Turn off the power supply of the node, exchange the bus coupler and turn the power supply on again. Turn off the power supply of the node, reduce number of Gateway or Mailbox I/O modules and turn the power supply on again. Fault argument Fault description Trouble shooting - not used -

69 Fieldbus Coupler LED Display Fault code 3: "Internal bus protocol fault" Fault argument Fault description Trouble shooting - Internal bus communication malfunction; faulty device can t be detected If the fieldbus node comprises internal system supply modules ( ), make sure first that the power supply of these modules is functioning. This is indicated by the status LEDs. If all I/O modules are connected correctly or if the fieldbus node doesn t comprise modules you can detect the faulty I/O module as follows: turn off the power supply of the node. Place the end module in the middle of the fieldbus node. Turn the power supply on again. If the LED is still blinking, turn off the power supply and place the end module in the middle of the first half of the node (towards the coupler). If the LED doesn t blink, turn off the power supply and place the end module in the middle of the second half of the node (away from the coupler). Turn the power supply on again. Repeat this procedure until the faulty I/O module is detected. Replace the faulty I/O module. If there is only one I/O module left but the LED is still blinking, then this I/O module or the coupler is defective. Replace defective component.

70 70 Fieldbus Coupler LED Display Fault code 4: "Internal bus physical fault" Fault argument Fault description Trouble shooting - Error in internal bus data communication or interruption of the internal bus at the coupler n* Interruption of the internal bus after the n th process data module. Turn off the power supply of the node. Place an I/O module with process data behind the coupler and note the error argument after the power supply is turned on. If no error argument is given by the I/O LED, replace the coupler. Otherwise detect faulty I/O module as follows: turn off the power supply. Place the end module in the middle of the fieldbus node. Turn the power supply on again. If the LED is still blinking, turn off the power supply and place the end module in the middle of the first half of the node (towards the coupler). If the LED doesn t blink, turn off the power supply and place the end module in the middle of the second half of the node (away from the coupler). Turn the power supply on again. Repeat this procedure until the faulty I/O module is detected. Replace the faulty I/O module. If there is only one I/O module left but the LED is still blinking, then this I/O module or the coupler is defective. Replace defective component. Turn off the power supply of the node, exchange the (n+1) th process data module and turn the power supply on again.

71 Fieldbus Coupler LED Display Fault code 5: "Internal bus initialization fault" Fault argument Fault description Trouble shooting n* Error in register communication during internal bus initialization Fault code 6 -not used- Turn off the power supply of the node and replace n th process data module and turn the power supply on again. Fault argument Fault description Trouble shooting - not used - Fault code 7 -not used- Fault argument Fault description Trouble shooting - not used - Fault code 8 -not used- Fault argument Fault description Trouble shooting - not used - Fault code 9 "CPU Trap Error" Fault argument Fault description Trouble shooting 1 Illegal Opcode 2 Stack overflow 3 Stack underflow 4 NMI Fault code 10 -not used- Error in the program sequence. Contact the WAGO I/O-Support Fault argument Fault description Trouble shooting - not used - Fault code 11: "Gateway-/Mailbox I/O module fault" Fault argument Fault description Trouble shooting 1 Maximum number of Gateway modules exceeded 2 Maximum size of Mailbox exceeded 3 Maximum size of process image exceeded due to the put Gateway modules Turn off the power supply of the node, reduce number of Gateway modules and turn the power supply on again. Reduce the Mailbox size. Reduce the data width of the Gateway modules. * The number of blink pulses (n) indicates the position of the I/O module. I/O modules without data are not counted (e.g. supply module without diagnosis)

72 72 Fieldbus Coupler LED Display Example for a fault message; Fault: The 13th I/O module has been removed 1. The "I/O" LED starts the fault display with the first blink sequence (approx. 10 flashes/second). 2. The second blink sequence (1 flash/second) follows the first pause. The "I/O" LED blinks four times and thus signals the fault code 4 (internal bus data fault). 3. The third blink sequence follows the second pause. The "I/O " LED blinks twelve times. The fault argument 12 means that the internal bus is interrupted after the 12th I/O module Supply voltage status The two green LED s in the coupler supply section, display the status of the supply voltage. The left LED (A) indicates the status of the 24 V supply for the coupler. The right hand LED ( B or C ) displays the status of the field side supply (i.e., the power jumper contacts). LED Meaning Trouble shooting A Green Operating voltage for the system exists. OFF No operating voltage for the system. Check the supply voltage (24V and 0V). B or C Green OFF Operating voltage for the power jumper contacts exists. No operating voltage for the the power jumper contacts. Check the supply voltage (24V and 0V).

73 Fieldbus Coupler Technical Data Technical Data System data Max. no. of nodes Max. no. of I/O points Transmission medium Max. length of bus line Baud rate BusCoupler connection Standards and approvals UL KEMA 64 with scanner ca (depends on master) shielded Cu cable, trunk line: AWG 15, 18 (2x 0.82mm 2 +2x1.7mm 2 ) drop line: AWG 22, 24 (2x0.2mm 2 +2x0.32mm 2 ) 100 m m (depends on baud rate / on the cable) 125 kbaud, 250 kbaud, 500 kbaud 5-pole male connector, series 231 (MCS) female connector / / is included E175199, UL508 E198726, UL1604 Clas I Div2 ABCD T4A 01ATEX1024 X Eex na II T4 ODVA CE Certification Conformity marking Accessories EDS files Download: Miniature WSB quick marking system Technical data Max. number of I/O modules 64 Input process image max. 512 bytes Output process image max. 512 bytes Configuration via PC or PLC Voltage supply DC 24 V (-15 % / + 20 %) Current consumption - via power supply terminal - via CAN interface < 500 ma at 24 V < 120 ma at 11 V Efficiency of the power supply 87 % Internal power consumption 350 ma at 5 V Total current for I/O modules 1650 ma at 5 V Isolation 500 V system/supply Voltage via power jumper contacts DC 24 V (-15 % / + 20 %) Current via power jumper contact max DC 10 A Dimensions (mm) W x H x L 51 x 65* x 100 (*from top edge of mounting rail) Weight ca. 195 g EMC interference resistance acc. EN (96) EMC interference transmission acc. EN (94)

74 74 Fieldbus Controller Description 3.2 Fieldbus Controller Description The programmable fieldbus Controller (short: PFC) combines the functions of the fieldbus Coupler with that of a programmable logic control (PLC). The application program is created with WAGO-I/O-PRO 32 in accordance with IEC All input signals of the sensors are grouped in the Controller. According to the IEC programming, data processing occurs locally in the PFC. The link results created in this manner can be put out directly to the actuators or transmitted to the higher ranking control system via the bus. The programmer has access to all fieldbus and I/O data. In the initialization phase, the fieldbus Controller determines the physical structure of the node and creates a process image from this with all inputs and outputs. This could involve a mixed arrangement of analog (word by word data exchange) and digital (byte by byte data exchange) modules. The local process image is subdivided into an input and output data area. The data of the analog modules are mapped into the PDOs according to the order of their position downstream of the bus Coupler. The bits of the digital modules are compiled to form bytes and also mapped into PDOs. Should the number of digital I/Os exceed 8 bits, the Coupler automatically starts another byte. In addition to the functions of the fieldbus Coupler, the fieldbus Controller supports the following functions: Create Connection via UCMM-Port Offline Connection Set Shutdown Dynamic assembly Change MAC ID by SW Heartbeat Bit-Strobe

75 ON Fieldbus Controller Hardware Hardware View Fieldbus connection Series 231 (MCS) OVERFL MS RUN BUS OFF NS CONNECT I/O USR A B V 0V + + C D Status voltage supply -Power jumper contacts -System Data contacts Supply 24V 0V Supply via power jumper contacts 24V Ñ Ñ DIP switch for MAC ID and baud rate V Configuration and programming interface flap opened Fig. 3-20: Fieldbus Controller The fieldbus Controller is comprised of: operating mode switch Power jumper contacts g080600e Device supply with an internal system supply module as well as power jumper contacts for the field supply via assembled I/O modules Fieldbus interface with the bus connection DIP switch for baud rate and node ID Display elements (LEDs) for status display of the operation, the bus communication, the operating voltages as well as for fault messages and diagnosis Configuration and programming interface and operating mode switch Electronics for communication with the I/O modules (internal bus) and the fieldbus interface

76 76 Fieldbus Controller Hardware Device Supply The voltage supply is fed in via the terminals with the CAGE CLAMP connection. Device supply is intended for system supply and field side supply. I/O Modules 24 V 1/2 Fieldbus Interface Electronic 0V 3/4 10 nf 24 V 5V Electronic 10 nf 24 V 5V Fieldbus Interface 1) 2) 24 V 0 V 1) 1M 2) 10nF/500V Fig. 3-21: Device supply g080601e The integrated internal system supply module generates the necessary voltage to supply the electronics and the connected I/O modules. The fieldbus interface is supplied with electrically isolated voltage from the internal system supply module.

77 Fieldbus Controller Hardware Fieldbus Connection The scope of delivery includes the plug connector / / from the WAGO MULTI CONNECTION SYSTEM. The connector has gold plated contacts and has the signal designations printed at it clamping units. The connection diagram shows the table, the colours resulting in accordance with the specification and are identical to the conductor colours of the cables. Fieldbus connection Series 231 (MCS) V+ CAN_High drain CAN_Low V- Pin Signal Code Description 5 V+ red V 4 CAN_H white CAN Signal High 3 Shield Shield connection 2 CAN_L blue CAN Signal Low 1 V- black 0 V Fig. 3-22: Fieldbus connection, MCS g012500e For the connection of small conductor cross sections, we recommend to insert an insulation stop from series (white), (light grey) or (dark grey) due to the low kink resistance. This insulation stop prevents a conductor from kinking when it hits the conductor contact point, and as such, the conductor insulation from being also entered into and clamped in the connection point. Connector marking, housing components, test connectors including cables and heater connectors for cable extensions, are available. The connection point is lowered in such a way that after a connector is inserted, installation in an 80 mm high switchbox is possible. The electrical isolation between the fieldbus system and the electronics is made via the DC/DC converter and the optocoupler in the fieldbus.

78 78 Fieldbus Controller Hardware Display Elements The operating condition of the fieldbus controller or node is signalled via light diodes (LED). Four LED s, specific for (OVERFL, RUN, BUSOFF, CONNECT), indicate the module status (MS) or the network status (NS). OVERFL MS RUN BUS OFF NS CONNECT A B 24V 0V C D C A OVERFL MS RUN BUS OFF NS CONNECT A B 24V 0V C D A B I/O USR I/O USR Fig. 3-23: Display elements g012556x LED Color Meaning OVERFL red Errors or faults at the fieldbus Coupler. RUN green Fieldbus Coupler is ready for operation. BUS OFF red Error or malfunction at network CONNECT green IO USR red /green / orange red /green / orange Fieldbus Coupler is ready for network communication. The 'I/O'-LED indicates the operation of the node and signals faults encountered. The 'USR' LED can be selected by a user program in a programmable fieldbus Controller A green Status of the operating voltage system B or C green Status of the operating voltage power jumper contacts (LED position is manufacturing dependent)

79 Fieldbus Controller Hardware Configuration and Programming Interface The configuration and programming interface is located behind the cover flap. This is used to communicate with WAGO-I/O-CHECK and WAGO-I/O-PRO 32 as well as for firmware transfer. open flap Configuration and programming interface Fig. 3-24: Configuration and programming interface g01xx07e The communication cable ( ) is connected to the 4-pole header. Warning The communication cable must not be connected or disconnected while the coupler/controller is powered on! Operating Mode Switch The operating mode switch is located behind the cover flap beside the configuration and programming interface. open flap Run Stop Reset (pushing down) Update firmware mode switch Fig. 3-25: Operating mode switch The switch is a push/slide switch with 3 settings and a hold-to-run function. g01xx10e

80 80 Fieldbus Controller Hardware Operating mode switch From middle to top position From top to middle position Lower position, bootstrap Push down (i.e.with a screwdriver) Function Activate program processing (RUN) Stop program processing (STOP) For original loading of firmware, not necessary for user Hardware reset All outputs are reset; variables are set to 0 or to FALSE or to an initial value. The hardware reset can be performed with STOP as well as RUN in any position of the operating mode switch! An operating mode is internally changed at the end of a PLC cycle. Attention If outputs are set when switching over the operating mode switch from RUN to STOP, they remain set! Switching off the software side i.e. by initiators, are ineffective, because the program is no longer processed. Note With "GET_STOP_VALUE" (library "System.lib") WAGO-I/O-PRO 32 provides a function which serves to recognize the last cycle prior to a program stop giving the user the possibility to program the behavior of the Controller in case of a STOP. With the aid of this function the Controller outputs can be switched to a safe condition Hardware Address (MAC ID) The DIP switch is used both for parametrizing (setting the baud rate) of the fieldbus controller and for setting the MAC ID. The MAC-ID (node address) is set with the DIP switches 1 to 6 by 'sliding' the desired DIP switch to 'ON'. The binary significance of the individual DIP switches increases according to the switch number. DIP switch 1 being the lowest bit with the value 2 0 and switch 6 the highest bit with the value 2 5. Therefore the MAC ID 1 is set with DIP1 = ON, the MAC ID 8 with DIP4 = ON, etc. For the fieldbus nodes the node address can be set within the range from 0 to 63.

81 ON ON Fieldbus Controller Hardware ON Fig. 3-26: Example: Setting of station (node) address MAC ID 1 (DIP 1 = ON) g012540x Setting the Baud Rate The configuration is only read during the power up sequence. Changing the switch position during operation does not change the configuration of the buscoupler. Turn off and on the power supply for the fieldbus controller to accept the DIP switch change. The default setting is MAC ID 1. The fieldbus controller supports 3 different Baud rates, 125 kbaud, 250 kbaud and 500 kbaud. DIP switches 7 and 8 are used to set the baud rate ON g012541x Fig. 3-27: Example: Setting the baud rate 250 kbaud (DIP 7 = ON) on a station (node) with the address MAC ID 1. Baudrate DIP7 DIP8 125 kbaud *) OFF OFF 250 kbaud ON OFF 500 kbaud OFF ON not allowed ON ON *) Presetting The configuration is only read during the power up sequence. Changing the switch position during operation does not change the configuration of the buscoupler. Turn off and on the power supply for the fieldbus controller to accept the changing. The default setting is Baud rate 125 kb.

82 82 Fieldbus Controller Operating System Operating System Start-up PLC Cycle The Controller starts-up after switching on the supply voltage or after a hardware reset. The PLC program in the flash memory is transferred to the RAM. This is followed by the initialization of the system. The Controller determines the I/O modules and the present configuration. The variables are set to 0 or to FALSE or to an initialization value given by the PLC program. The flags retain their status. The "I/O" LED blinks red during this phase. Following an error free start-up, the Controller changes over to the "RUN" mode. The "I/O" LED lights up green. A PLC program does not yet exist in the flash memory when delivered. The Controller start-up is described without initializing the system. It then behaves as a Coupler. The PLC cycle starts following an error free start-up when the operating mode switch is in the top position or by a start command from the WAGO-I/O-PRO 32. The input and output data of the fieldbus and the I/O modules as well as the times are read. Subsequently, the PLC program in the RAM is processed followed by the output data of the fieldbus and the I/O modules in the process image. Operating system functions, amongst others, for diagnosis and communication are performed and the times are updated at the end of the PLC cycle. The cycle starts again with the reading in of the input and output data and the times. The change of the operating mode (STOP/RUN) is made at the end of a PLC cycle. The cycle time is the time from the start of the PLC program to the next start. If a loop is programmed within a PLC program, the PLC running time and thus the PLC cycle are extended correspondingly. The inputs, outputs and times are not updated during the processing of the PLC program. This update occurs in a defined manner only at the end of the PLC program. For this reason it is not possible to wait for an event from the process or the elapse of a time within a loop.

83 Fieldbus Controller Operating System Switching on the supply voltage I/O LED is blinking orange Is a PLC program in the Flash memory? Yes PLC program transfer from the flash memory to RAM No Determination of the I/O modules and the configuration Determination of the I/O modules and the configuration I/O LED is blinking red Initialization of the system Test o.k.? No Variables are set to 0 or FALSE or to their initial value, flags remain in the same status. Stop No Test o.k.? PLC cycle Yes STOP Operating mode RUN Reading inputs, outputs and times operating mode switch is in the top position or start command in WAGO-IO-PRO 32: Online/Start or Online/Stop Fieldbus data, data of I/O modules Yes PLC program in the RAM is processed Fieldbus start behaviour as a coupler I/O LED is shining green Writing outputs Fieldbus data, data of I/O modules Operating system functions, updating times Operating mode RUN STOP operating mode switch is in the top position or start command in WAGO-IO-PRO 32: Online/Start or Online/Stop Fig. 3-28: Controller operating system g012941d

84 84 Fieldbus Controller Process Image Process Image After switching on, the Controller recognizes all I/O modules plugged into the node which supply or wait for data (data width/bit width > 0). In nodes, analog and digital I/O modules can be mixed. The Controller produces an internal process image from the data width and the type of I/O module as well as the position of the I/O modules in the node. It is divided into an input and an output data area. The data of the digital I/O modules is bit orientated, i.e. the data exchange is made bit for bit. The analog I/O modules are all byte orientated I/O modules, i.e. those where the data exchange is made byte for byte. These I/O modules include, for example, the counter modules, I/O modules for angle and path measurement as well as the communication modules. Note For the number of input and output bits or bytes of the individually activated on I/O modules please refer to the corresponding I/O module description. The data of the I/O modules is separated from the local input and output process image in the sequence of their position after the controller in the individual process image. In the respective I/O area, first of all analog modules are mapped, then all digital modules, even if the order of the connected analog and digital modules does not comply with this order. The digital channels are grouped, each of these groups having a data width of 1 byte. Should the number of digital I/Os exceed 8 bits, the Controller automatically starts another byte. Note A process image restructuring may result if a node is changed or extended. In this case, the process data addresses also change in comparison with earlier ones. In the event of adding modules, take the process data of all previous modules into account. The process image for the physical bus module data is identical with that of the WAGO fieldbus Coupler. With the Controller, the data of the PFC variables are filled into the process image, separated according to input and output data.

85 Fieldbus Controller Data Exchange Data Exchange With, the transmission and exchange of data is made using objects. For a network access on the single objects, it is necessary to create a connection between the desired participants and to allocate connection objects. The fieldbus Controller can communicate via the UCMM- Port (Unconnected Message Manager Port). The UCMM-Port permits a dynamic connection via one or several connections from one or more clients. The object configuration for the data transmission is defined by the Assembly Object. The Assembly Object can be used to group data (e.g.: I/O data) to form blocks (mapping) and send this data via one single communication connection. This mapping results in a reduced number of accesses to the network. A differentiation is made between input and output assemblies. An Input Assembly reads data from the application via the network or produces data on the network respectively. An Output Assembly writes data to the application or consumes data from the network respectively. Various Assembly instances are permanently programmed (static assembly) in the fieldbus Controller. Further information The Assembly instances for the static Assembly are described in chapter "Assembly Instance". In addition to the static assembly, dynamic assembly can also be used with the fieldbus Controller. The dynamic assembly can be used to set up Assembly Instances in which process data from various application objects can be configured as required. Further information For information regarding the dynamic Assembly, please refer to chapter "Dynamic Assembly".

86 86 Fieldbus Controller Data Exchange Communication Interfaces For a data exchange, the fieldbus Controller is equipped with three interfaces: the interface to fieldbus (-master), the PLC functionality of the PFC (CPU) and the interface to the bus modules Data exchange takes place between the fieldbus master and the bus modules, between the PLC functionality of the PFC (CPU) and the bus modules as well as between the fieldbus master and the PLC functionality of the PFC (CPU). Data access of the PLC functionality of the PFC (CPU) is via an application related IEC program and independent on the fieldbus system. Access from the fieldbus side is fieldbus specific Memory Areas The Controller uses a memory space of 256 words (word ) for the physical input and output data. The Controller is assigned an additional memory space for mapping the PFC variables defined according to IEC This extended memory space (word each) is used to map the PFC variables behind the physical process image. The division of the memory spaces and the access of the PLC functionality (CPU) to the process data is identical with all WAGO fieldbus Controllers. Access is via an application related IEC program and independent on the fieldbus system. Access from the fieldbus side is fieldbus specific.

87 Fieldbus Controller Data Exchange fieldbus programmable fieldbus controller memory area for input data word 0 1 input modules I/O modules word 255 word 256 PFC input variables word CPU IEC program memory area for output data word 0 2 output modules word 255 word 256 PFC output variables word I O Fig. 3-29: Memory areas and data exchange for a fieldbus Controller g012434d In its memory space word , the Controller process image contains the physical data of the bus modules. 1 The data of the input modules can be read by the CPU and from the fieldbus side. 2 In the same manner, writing to the output modules is possible from the CPU and from the fieldbus side. The value of the last is written to the output while concurrent writing on an output. Note A concurrent writing on an output must be avoided. Either by using instance 11 of the static assembly (see chapter 0 " Additional Assembly Instances 10 and 11") or by using the dynamic assembly (see chapter "Dynamic Assembly"). The PFC variables are filled in the memory space word of the process image. 3 The PFC input variables are written in the input memory space from the fieldbus side and read by the CPU for further processing. 4 The variables processed by the CPU via the IEC program are filled in the output memory space and can be read out by the master.

88 88 Fieldbus Controller Data Exchange In addition, the Controller offers further memory spaces which, however, cannot be accessed from the fieldbus side: RAM Retain The RAM memory is used to create variables not required for communication with the interfaces but for internal processing, such as computation of results. The retain memory is a non-volatile memory, i.e. all values are retained following a voltage failure. The memory management is automatic. In this memory area, flags for the IEC program are filed together with variables without memory space addressing or variables which are explicitly defined with "var retain". Note The automatic memory management can cause a data overlap. For this reason, we recommend not to use a mix of flags and retain variables. Code memory The IEC program is filed in the code memory. The code memory is a flash ROM. Once the supply voltage is applied, the program is transmitted from the flash to the RAM memory. After an error-free start-up, the PFC cycle starts when the operating mode switch is turned to its upper position or by a start command from WAGO-I/O-PRO 32.

89 Fieldbus Controller Data Exchange Addressing Fieldbus Specific Once the supply voltage is applied, the Assembly Object maps data from the process image. As soon as a connection is established, a Master (scanner) can address and access the data by "Class", "Instance" and "Attribute" or read and/or write the data using I/O connections. Data mapping depends on the selected Assembly instance of the static assembly or on the application specific determination with the dynamic Assembly. Further information The Assembly Instances of the static Assembly are described in chapter "Assembly Instance". Further information For information regarding the dynamic Assembly, please refer to chapter "Dynamic Assembly". fieldbus master Connection Object Producer Consumer Object directory() Assembly Object Input- Assemly Output- Assemly Application Object Digital I/O, Analog I/O Programmable fieldbus controller memory area for input data word 0 1 input modules word 255 word 256 PFC input variables word memory area for output data word 0 2 CPU IEC program I/O modules output modules word 255 word PFC output variables word 511 I O Fig. 3-2: Fieldbus specific data exchange for a fieldbus Controller g012532d Note For the number of input and output bits or bytes of the individual I/O modules, please refer to the corresponding I/O module description. Note A process image restructuring may result if a node is changed or extended. In this case, the process data addresses also change in comparison with earlier ones. In the event of adding a module, take the process data of all previous modules into account.

90 90 Fieldbus Controller Data Exchange Example for static assembly (default assembly): The default assembly is: Output1 (I/O Assembly Instance 1) Input1 (I/O Assembly Instance 4) In this example, the fieldbus node arrangement looks like this: 1) 1 fieldbus Controller ( ) 2) 1 digital 4-channel input module (i. e ), 3) 1 digital 4- channel output module (z. B ), 4) 1 analog 2- channel output module with 2 bytes per channel (i. e ), 5) 1 analog 2- channel input module with 2 bytes per channel (i. e ), 6) 1 End module ( ). Input process image: Default process data, input image (Assembly Class, Instance 4) Byte low byte channel 1 1 high byte channel 1 2 low byte channel 2 3 high byte channel 2 4 not used DI04 1) DI03 1) DI02 1) DI01 1) 5 DS08 2) DS07 2) DS06 2) DS05 2) DS04 2) DS03 2) DS02 2) DS01 2) 1) DI = Digital Input 2) DS = Diagnostic Status (The last byte in the input process image is the Diagnostic Status Byte, DS01...DS08, see also: Object 0x64/Instance 1/Attr. 5) DS01 =1: internal bus error (0x01) DS02 =1: module communication error (0x02) DS04 =1: module diagnostic (0x08) DS08 =1: fieldbus error (0x80) Output process image: Default process data, output image (Assembly Class, Instance 1) Byte low byte channel 1 1 high byte channel 1 2 low byte channel 2 3 high byte channel 2 4 not used DO04 1) DO03 1) DO02 1) DO01 1) 1) DO = Digital Output

91 Fieldbus Controller Data Exchange Absolute Addressing The CPU has direct access to the bus terminal data through absolute addresses. Addressing begins with the address 0 both with inputs and outputs. The corresponding addresses for bits, bytes and double words (DWord) are derived from the word addresses. The structure of the process image is described in chapter Process Image. Addressing is done in this structure. Input data Output data %IW0 %IW n %I n+1 %I n+m %QW0 %QW n %Q n+1 %Q n+m word-orientated data bit-orientated data word-orientated data bit-orientated data Calculate Addresses The word address is the basis for calculation (word). Bit Address Word address.0 to.15 Byte Address 1st byte: 2 x Word address 2nd byte: 2 x Word address + 1 DWord Address lower section: Word address (even numbers) / 2 upper section: Word address (odd numbers) / 2, rounded off Address Range for I/O Module Data Data size Address range I/O module data Bit Byte Word DWord

92 92 Fieldbus Controller Data Exchange Address Range for Fieldbus Variables Data size Address range fieldbus variables Bit Byte Word DWord Address Range for Flags Data size Address range flags Bit Byte Word DWord All flags are non volatile (retain) Example for Absolute Addresses Data size Inputs: Bit %IX %IX Byte %IB28 %IB29 %IB30 %IB31 Word %IW14 %IW15 DWord %ID7 Data size Outputs: Bit %QX %QX Byte %QB10 %QB11 %QB12 %QB13 Word %QW5 %QW6 DWord %QD2 (oberer Teil) %QD3 (unterer Teil) Data size Flags: Bit %MX %MX Byte %MB22 %MB23 %MB24 %MB25 Word %MW11 %MW12 DWord %MD5 (upper part) %MD6 (lower part) The character 'X' for single bits can be deleted, e.g.%i14.0, %Q6.10, %M11.7

93 3.2.6 Programming the PFC with WAGO-I/O-PRO 32 Fieldbus Controller Programming the PFC with WAGO-I/O-PRO 32 Due to the IEC programming of the fieldbus Controller you have the option to use the functionality of a PLC beyond the functions of fieldbus Coupler An application program according to IEC is created using the programming tool WAGO-I/O-PRO 32 (order No.: / ). This manual, however, does not include a description of how to program with WAGO-I/O-PRO 32. In contrast, the following chapters are to describe the special modules for WAGO-I/O-PRO 32 for you to utilize explicitly for programming the fieldbus Controller. The description also explains transmitting the IEC program into the Controller and loading a suitable communication driver. More information For a detailed description of how to use the software, please refer to the WAGO-I/O-PRO 32 manual (order No.: / ) WAGO-I/O-PRO 32 Library Elements You are offered various libraries for different IEC programming applications in WAGO-I/O-PRO 32. They contain modules for universal use and can, thereby, facilitate and speed up the creation of your program. As standard, the library 'standard.lib' is available to you. The library described in the following is specifically intended for projects with WAGO-I/O-PRO 32: "DevNet. lib" This library extends the fieldbus Controller by the master function. As a result, it can be programmed in the network as a Master. Several libraries are loaded on the WAGO-I/O-PRO CD. Having integrated this library, you have access to its POUs, data types and global variables which can be used in the same manner as those defined by yourself. More information For a detailed description of the POUs and the software operation, please refer to the WAGO-I/O-PRO 32 manual (order No.: / ).

94 94 Fieldbus Controller Programming the PFC with WAGO-I/O-PRO IEC Program Transfer Program transfer from the PC to the Controller following programming of the desired IEC application can be made in two different ways: via the serial interface or via the fieldbus. One suitable communication driver each is required for both types. More information For information on the installation of the communication drivers as well as details regarding the use of the software, please refer to the WAGO-I/O-PRO 32 manual (order No.: / ) Transmission via the Serial Interface Use the WAGO communication cable to produce a physical connection via the serial interface. This is contained in the scope of delivery of the programming tool IEC , order No.: / , or can be purchased as an accessory under order No.: Connect the COMX port of your PC with the communication interface of your Controller via the WAGO communication cable. Warning The communication cable must not be connected or disconnected while the coupler/controller is powered on! A communication driver is required for serial data transmission. In WAGO- I/O-PRO 32, this driver and its parameters are entered in the "Communication parameters" dialog. 1. Start the WAGO-I/O-PRO 32 software via Start/Programs or by double clicking on the WAGO-I/O-PRO-32 symbol on your desk top. 2. In the "Online" menu click on the "Communication parameters" menu point. The dialog "Communication parameters" opens. The basic setting of this dialog has not yet any entries. 3. In the selection window mark the desired driver on the right-hand dialog side (i.e. "Serial RS232"), to configure the serial connection between PC and the Controller). 4. In the center window of the dialog, the following entries have to appear: - Parity: Even - Stop bits: 1

95 Fieldbus Controller Programming the PFC with WAGO-I/O-PRO 32 If necessary, change the entries accordingly. You can now commence testing the Controller. Note To be able to access the Controller, ensure that the operating mode switch of the Controller is set to the center or the top position. 5. Under "Online" click on the "Log-on" menu point to log into the Controller. (The WAGO-I/O-PRO 32 server is active during online operation. The communication parameters cannot be polled.) 6. If there is not a program in the Controller, a window appears asking whether or not the program is to be loaded. Confirm with "Yes". Subsequently the current program will be loaded. 7. As soon as the program is loaded, you can start program via the "Online" menu, menu point "Start". At the right-hand end of the status bar, the system signals "ONLINE RUNNING"." 8. To terminate the online operation, return via the "Online" menu and click on the "Log-off" menu point Transmission via the Fieldbus The field bus cable is the physical connection between the PC and the Controller. It is necessary to have a suitable communication driver for data transmission. This driver and how it is parametered is entered in WAGO-I/O-PRO 32 in the "communication parameter" dialog. Note Transmission via the fieldbus is supported by UCMM. Here, for the download of the PFC program, WAGO-I/O-PRO 32 counts as a subscriber. 1. Start the WAGO-I/O-PRO 32 software via Start/Programs or by double clicking on the WAGO-I/O-PRO-32 symbol on your desk top. 2. In the "Online" menu click on the "Communication parameters" menu point. The "Communication parameters" dialog opens. 3. Click on the New button to define a driver in the "Communication parameter" dialog 4. Enter any name and mark the driver "Hilscher PA Interface standard" in the selection window of the dialog. Subsequently confirm with "OK".

96 96 Fieldbus Controller Programming the PFC with WAGO-I/O-PRO If necessary, change the entry accordingly in the center window of the dialog. Note Prerequisite for the access to the Controller is that the operating mode switch of the Controller is in the center or top position. 6. Under "Online" click on the "Log-on" menu point to log into the Controller. (During online operation, the WAGO-I/O-PRO 32 server is active. The communication parameters cannot be polled.) 7. If there is not a program contained in the Controller, a window appears asking whether or not the program is to be loaded. Confirm with "Yes". Subsequently the current program is loaded. 8. As soon as the program is loaded, you can start the program via the "Online" menu, menu point "Start". At the right-hand end of the status bar, the system signals "ONLINE RUNNING". 9. To terminate the online operation, return via the "Online" menu and click on the "Log-off" menu point.

97 3.2.7 Special Features of the Controller Connection via the UCMM port Offline Connection Set Shutdown Dynamic Assembly Fieldbus Controller Special Features of the Controller In contrast to the fieldbus Coupler as a Group 2 Only Server, the Controller supports the dynamic connection via the UCMM port (Unconnected Message Manager Port). For the Controller, the simultaneous set-up of 5 explicit and 5 dynamic I/O connections, i.e. the connection with 5 subscribers, is possible. Due to the Offline Connection Set, the fieldbus node can be addressed via the network when this node has been switched off because of a double MAC ID and is in a Communication Fault status. After being addressed, the MAC ID of the fieldbus Controller can be changed using the software. The Device Shutdown allows the fieldbus node to log out from a control in a defined manner if the node is switched off due to internal faults. This function can be used in a targeted way in networks subject to very high safety requirements, such as e.g. in the chemical industry or in semi-conductor production. An Assembly Object is used to group data (e.g. I/O data) to form blocks to be sent as a single message. The static Assembly allows the user to access permanently pre-programmed Assembly Instances in the fieldbus Controller. The dynamic Assembly, on the other hand, offers the possibility to set up Assembly Instances in which process data from various application objects can be configured as required. In addition to the I/O data transmission, the dynamic assembly can also be used for a targeted selection of data which are to be transmitted explicitly via the fieldbus, or those which are explicitly not to be transmitted via the fieldbus. Attention To set the pysical outputs with the PFC either use the dynamic assembly or the instance 11 of the static assemblies. With this, you do not enter the physical outputs into the mapping in order to prevent the output data from being transmitted and temporary overwritten by the fieldbus. Further information You can find more details in chapter "Dynamic Assembly".

98 98 Fieldbus Controller Special Features of the Controller Change MAC ID by SW Heartbeat Bit-Strobe The MAC ID of the Controller can be changed via the network using the software (e.g. WAGO NETCON, RS NetWorx). For this purpose, the node address is stored in non-volatile memory. Should the address set at the DIP switch differ from the one set via the network using the software, the I/O LED changes its colour to orange. To reset the software default address, the invalid address 64 is entered in class 3, instance 1, attribute 1. Subsequently, the Controller has its MAC ID that is set at the DIP switch. The heartbeat function permits a node to cyclically transmit a so-called heartbeat message and, in this manner, to signal its communication ability to all members in the network. If a responsible heartbeat consumer does not receive a message within a predefined time (Heartbeat Consuming Time), this is registered as a heartbeat fault. The relationship between producer and consumer of a Heartbeatmessage can be configured by entries in the object directory, so the time between two Heartbeat messages can be entered in Class 0x01, Instance 1, Attribut ID 10 (0x0A). The bit strobe I/O connection is always a 1 to n multicast connection. In other words, a master can reach with its message all slaves supporting the bit strobe command. The transfer takes place at the same time. In this manner it is possible to synchronize the slaves. The length of this master message is limited to 8 bytes. Each node address in the net is assigned a bit within the 8 data bytes. The reaction of the slave which bit is set is specific to the application. The reaction has to be defined and it has to be known by the PLC. With its answer, each slave can return 8 bytes of data. The order of the answers depends on the reaction time of the single slave and, in addition, it depends on the particular node address. If all slaves would reply to the Bit-Strobe command at the same time, the order of sending on the CAN bus would be determined by the node address (bit arbitration). Further information You can find more details in chapter "Bit-Strobe".

99 ON Fieldbus Controller Configuration Software Configuration Software To allow a connection between the PLC and the fieldbus devices, the interface modules have to be configured with the individual station file. To this effect, the scope of the WAGO-I/O-SYSTEM 758 includes the WAGO NETCON software intended for design and configuration, start-up and diagnosis. Further configuration software of different manufacturers include, for instance, RSNetWorx Starting-up Fieldbus Nodes This chapter shows the step-by-step procedure for starting up a WAGO fieldbus node. Following this will be information for programming the PFC with WAGO- I/O-PRO 32. Attention This description is given as an example and is limited to the execution of a local start-up of an individual fieldbus node. The procedure contains the following steps: 14.Connecting the PC and fieldbus node 15.Setting the MAC ID and baud rate 16.Configuration with static and dynamic Assembly Connecting the PC and Fieldbus Node 1. Connect the assembled fieldbus node to the fieldbus PCB in your PC via a fieldbus cable and start your PC. The 24 V field bus supply is fed by an external fieldbus network power supply over the connections V+, V- of the 5-pin fieldbus connector (MCS Series 231). 2. Start your PC Setting the MAC ID and Baud Rate 1. Use the DIP switches to set the desired node address (MAC ID). The binary significance of the individual DIP switches increases according to the switch number. DIP switch Value g012443x Fig Example: Setting the MAC ID 4 (DIP 3 = ON) DIP switches 7 and 8 are used to set the desired baud rate

100 ON 100 Fieldbus Controller Starting-up Fieldbus Nodes ON g012541x Fig. 3-31: Example: Setting the baud rate 250 kbaud (DIP 7 = ON) of the station with MAC ID 1. Baud rate DIP7 DIP8 125 kbaud *) OFF OFF 250 kbaud ON OFF 500 kbaud OFF ON not allowed ON ON *) Presetting 2. Then switch on the Controller supply voltage Configuration with Static and Dynamic Assembly In this example, the software RSNetWorx Rev: of Allan-Bradley and SLC500 with a 1747-SDN Scanner Module is used. The inputs are mapped using the static Assembly and the outputs are mapped with the dynamic Assembly. The node in the example consists of the following I/O modules: DI DI DI DI DODO DODO DODO AI AI AO AO Fig. 3-32: Example for a fieldbus node g012553x 1. Starting Software and EDS file load 1. Start the configuration software RSNetWorx. 2. Load the EDS file " _1.EDS" for the fieldbus Controller in RSNetWorx. For this click on "Tools/ EDS Wizard" and choose the EDS-file to load. 3. Now follow the Wizard instructions. Note You can download the EDS file _1.EDS from the Internet under: 2. Create a New Network 1. After the EDS file has been loaded in RSNetWorx, you can start establishing your network. For this purpose, click in the tree structure located in the left-hand screen

101 Fieldbus Controller Starting-up Fieldbus Nodes window on the "Communication Adapter" folder. A list of various sub-folders appears. 2. From the list of sub-folders, select the corresponding scanner available in your network (for the present example, select "1747 SDN Scanner Module"). 3. Take over the selected scanner into the right-hand graphics window with a double-click or drag&drop. The selected scanner is displayed in the right-hand screen window as a symbol. 4. Now select the Controller 806 in the tree structure in the "Communication Adapter" folder. 5. Also take this over into the right-hand graphic window with a double-click or drag&drop. The Controller is added to the right-hand screen window as a second symbol. 3. RX/TX Calculation for the Mapping The correct setting of the TX/RX configuration is a prerequisite for the perfect running of the network. For this purpose, the TX/RX configuration must coincide with the node configuration. For the entry into the RX and TX fields in RSNetworx, all input bit/bytes count as a whole, as well as all output bits/bytes. Here, individual bits are always grouped to form full bytes. From the fieldbus master standpoint, the example node has the following data configuration: I/O module RX TX PFC 1 byte input status channel input 4 bits input channel input 4 bits input channel output 4 bits output channel output 4 bits output channel output 4 bits output channel analog input 4 bytes input channel analog output 4 bytes output end module - - PFC fieldbus input variables PFC fieldbus output variables 4 bytes output 0 bytes input

102 102 Fieldbus Controller Starting-up Fieldbus Nodes Sum 10 bytes 6 bytes Note PFC output variables are defined from the point of view of the programmable fieldbus Controller. These are input variables from the point of view of the fieldbus, which are added to the RX Settings. Accordingly, PFC input variables are output variables for IEC access of the field bus. For that reason they will be added to the TX Settings: IEC input variable PFC input variable fieldbus = PFC output variable = IEC output variable Programmable fieldbus controller PLC input variables PFC input variables PLC output variables PFC output variables Fig. 3-33: Zusammenhang SPS-Variablen and PFC-Variablen g012444d 4. Static assembly for inputs In the present example, the master/scanner is to have access to the physical inputs and to the 4 bytes PFC output variables. The number of input data is complemented by 4 bytes of the PFC output variables during the static assembly for the TX configuration of the scanner. 1. To be able to parameterize the Controller, double-click on the graphic symbol of the fieldbus node In the "General" register, you can assign the Controller any desired address. To this effect, click in the input window for the address and enter the address in accordance with the address set at the Controller DIP switch.

103 Fieldbus Controller Starting-up Fieldbus Nodes 3. The RX/TX configuration can be entered in the "Parameters" register. For this purpose, move to the "Groups" dialog box, down along the scroll bar, and select "PLC fieldbus variables". 4. Do not change the value for the ID#37 "PLC fieldbus Input variables" which is 0. Enter 4 for the ID#38 "PLC fieldbus Output variables". 5. Confirm the setting by clicking on the "OK" button. 6. Double-click on the scanner icon to start the configuration. The dialog window "1797-SDN Scanner Module" opens. 7. Select the "Scanlist" register card. 8. Click on the button with the arrow to the right in order to take over the Controller in the left-hand window "Available Devices" into the "Scanlist" window. 9. Click on the "Edit I/O Parameters..." button. 10. Activate the poll function by clicking on the field located in front of "Polled". The field is now ticked which permits the entry for TX and RX. 11. Enter 6 bytes in the "TX-Size" dialog box. They are receipt bytes for the inputs. Enter 4 bytes for the PFC input variables in the "RX-Size" dialog box. The number of these bytes results from the following determinations in the dynamic assembly for the outputs. This simultaneously defines that only the PFC input variables and no physical outputs are to be written by the master. 12. Then click on the "OK" button to take over the parameters. A window appears indicating that several I/O data will not be mapped. Confirm the question of whether or not you wish to continue by clicking on the "Yes" button.

104 104 Fieldbus Controller Starting-up Fieldbus Nodes 13. In the "1797-SDN Scanner Module" dialog window, select the "Input" register card. All inputs are mapped as digital inputs. Mapped Inputs I:1.0 1 Word Reserved for Scanner Module I:1.1 1 Word Analog Input Channel 1 I:1.2 1 Word Analog Input Channel 2 I:1.3 1 Byte Status 1 Byte Digital Inputs I:1.4 1 Word IEC input variable 1 (or PFC output variable 1) I:1.5 1 Word IEC input variable 2 (or PFC output variable 2)

105 Fieldbus Controller Starting-up Fieldbus Nodes 14. In the "1797-SDN Scaner Module" dialog window, select the "Output" register card. All outputs are mapped as digital outputs. Mapped Outputs O:1.0 1 Word Reserved for Scanner Module O:1.1 1 Word IEC output variable 1 (or PFC input variable 1) O:1.2 1 Word IEC output variable 2 (or PFC input variable 2)

106 106 Fieldbus Controller Starting-up Fieldbus Nodes 5. Dynamic assembly for the outputs The dynamic assembly is used to map those data which are to be transmitted via the fieldbus. They are stored as classes, instances and attributes. 17.In the graphical display, click on the symbol of the fieldbus Controller so that the symbol is marked. 18.Then click on the Class Instance Editor... menu point in the "Device" menu. A window displaying a warning appears: Note This editor changes parameters in the Controller. For this reason, ensure that all data is entered consistently either as hexadecimal or decimal. If the data number format is not consistent, data loss can result up to a total functional failure of the Controller.

107 Fieldbus Controller Starting-up Fieldbus Nodes 19.Confirm the warning information by clicking on the "Yes" button. The dialog window "Service Class Instance Attribute Editor" appears. 20.In the "Description" dialog box select the "Create" utility and enter the following values in the dialog boxes for the "Object Address": - "Class": 4 "Instance": 0 "Attribute": 1. Note Do not click on the "ENTER" key, because this will close the dialog window so that it has to be reopened. 21.Click on the "Execute" button to create the instance for the dynamic assembly. If the setting was successful, the fieldbus node will send the instance number = If a fault has occurred, you will receive a fault message. In this case, check the entries for class, instance and attribute, the connection and the configuration. 22.In the "Description" dialog box, select the "Set Single Attribute" utility and enter the following values in the "Object Address" dialog boxes: - "Class": 4 "Instance": 64 (64 hexadecimal = 100 decimal) "Attribute": Click in the " Data Sent to the device" dialog box and enter the following values in hexadecimal: A A

108 108 Fieldbus Controller Starting-up Fieldbus Nodes The path is described by: 0x20 CC (Class) 0x24 II (Instance) 0x30 AA (Attribute) 24.Click on the "Execute" button to define the mapping. If the mapping was successful, the fieldbus node sends a performance confirmation. If a fault has occurred, you will receive a fault message. In the event of a communication or reply fault, check the connection and whether or not the instance was correctly set. 25.Click on the "Close" button. The dialog window is closed. 26.To parameterize the Controllers, double-click on the graphic symbol of the fieldbus node Select the "Parameters" register and All parameters in the "Groups" dialog box.

109 Fieldbus Controller Starting-up Fieldbus Nodes 1. Use the scroll bar to move down to the ID#13 and #ID14 addresses. ID#13 is a pointer for the inputs (Default = 4). This parameter is changed when the inputs are mapped for the master. This is not required due to the fact that the inputs are only read and not written. ID#14 is a pointer for the outputs (Default = 1). This parameter is changed in order to point on the dynamic mapping of the outputs that are mapped in the dynamic assembly instance 100dec. (0x64hex). 2. Do not change the pre-set standard value 4 of the ID#13. Enter decimal for the ID#14 to direct the pointer on the dynamic assembly output mapping.