Operating Instructions SIMATIC. Network transitions. PN/M-Bus LINK. siemens.com

Transcription

1 Operating Instructions SIMATIC Network transitions Edition 03/2018 siemens.com

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3 Introduction 1 Safety information 2 SIMATIC Network transitions Operating Instructions System overview 3 Functions 4 Application planning 5 Mounting/Extending 6 Connecting 7 Commissioning 8 Configuring / Programming 9 Diagnostics 10 Maintenance and service 11 Technical specifications 12 A Appendix 03/2018 A5E AA

4 Legal information Warning notice system This manual contains notices you have to observe in order to ensure your personal safety, as well as to prevent damage to property. The notices referring to your personal safety are highlighted in the manual by a safety alert symbol, notices referring only to property damage have no safety alert symbol. These notices shown below are graded according to the degree of danger. DANGER indicates that death or severe personal injury will result if proper precautions are not taken. WARNING indicates that death or severe personal injury may result if proper precautions are not taken. CAUTION indicates that minor personal injury can result if proper precautions are not taken. NOTICE indicates that property damage can result if proper precautions are not taken. If more than one degree of danger is present, the warning notice representing the highest degree of danger will be used. A notice warning of injury to persons with a safety alert symbol may also include a warning relating to property damage. Qualified Personnel The product/system described in this documentation may be operated only by personnel qualified for the specific task in accordance with the relevant documentation, in particular its warning notices and safety instructions. Qualified personnel are those who, based on their training and experience, are capable of identifying risks and avoiding potential hazards when working with these products/systems. Proper use of Siemens products Note the following: Trademarks WARNING Siemens products may only be used for the applications described in the catalog and in the relevant technical documentation. If products and components from other manufacturers are used, these must be recommended or approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation and maintenance are required to ensure that the products operate safely and without any problems. The permissible ambient conditions must be complied with. The information in the relevant documentation must be observed. All names identified by are registered trademarks of Siemens AG. The remaining trademarks in this publication may be trademarks whose use by third parties for their own purposes could violate the rights of the owner. Disclaimer of Liability We have reviewed the contents of this publication to ensure consistency with the hardware and software described. Since variance cannot be precluded entirely, we cannot guarantee full consistency. However, the information in this publication is reviewed regularly and any necessary corrections are included in subsequent editions. Siemens AG Division Digital Factory Postfach NÜRNBERG GERMANY A5E AA P 04/2018 Subject to change Copyright Siemens AG All rights reserved

5 Table of contents 1 Introduction Preface Documentation guide Safety information Safety information Security information IT security System overview Field of application Features System configuration System requirements Design Functions Cyclic and acyclic data exchange Response to errors Application planning Installation guidelines Installation location Transportation Storage Scope of delivery Mounting/Extending Installing the device Connecting Safety instructions and guidelines Power supply and potential ratios Connecting 24 V DC Connecting the functional ground Connecting PROFINET Connecting the M-Bus Operating Instructions, 03/2018, A5E AA 3

6 Table of contents 8 Commissioning Commissioning Configuring / Programming Overview TIA Portal Devices & Networks Inserting and configuring M-Bus devices Checking and compiling the configuration Diagnostics Status LEDs Operating state of the / PROFINET diagnostics Connection status of the M-Bus Connection status of Ethernet interfaces Diagnostic messages to the S7 controller Events that trigger a diagnostic message Status byte in cyclic IO image Maintenance and service Firmware update Reset to factory settings Replacing Recycling and disposal Technical specifications Technical specifications Dimension drawing A Appendix A.1 Certificates and approvals A.2 Contact address A.3 Licenses A.4 Service & Support A.4.1 Technical Support A.4.2 Siemens Industry Online Support A.4.3 Online catalog and ordering system Glossary Index Operating Instructions, 03/2018, A5E AA

7 Introduction Preface Purpose of this documentation These operating instructions contain all the information required for configuring, installing, commissioning and operating the. These operating instructions are intended for qualified personnel in the following target groups: Commissioning engineers Operating and service personnel System integrator Knowledge required The following knowledge is required in order to understand the operating instructions: Knowledge of programming a SIMATIC S7 controller Knowledge in the application of the TIA configuration environment Knowledge of working with the PROFINET fieldbus Well-founded knowledge in the M-Bus communication protocol General knowledge in the field of automation technology General knowledge of communication networks Trademarks SIMATIC is a registered trademark of Siemens AG. History Edition Remarks 03/2018 First edition Operating Instructions, 03/2018, A5E AA 5

8 Introduction 1.2 Documentation guide Naming conventions In this documentation, the following terms are used instead of the complete product designation "SIMATIC ": "" "Device" 1.2 Documentation guide Additional documentation is listed below, which supplements these operating instructions for the and is available on the Internet. Additional documentation Subject Documentation Most important contents Designing interference-free controllers Function Manual Designing interference-free controllers ( / ) Basics Electromagnetic compatibility Lightning protection PROFINET SIMATIC PROFINET System Description ( / ) Basics Installation Functions Configuration examples The latest manuals for SIMATIC products are available for download free of charge from the Internet ( The TIA Portal information system also supports you in configuring and programming your automation system and. 6 Operating Instructions, 03/2018, A5E AA

9 Safety information Safety information CAUTION Observe the safety instructions on the inside front cover of this documentation. SIMATIC M-Bus LINK devices adhere to the approvals printed on the nameplate. If you have questions about whether it is permissible to install the device in the planned environment, please contact your service representative. NOTICE Alterations to the devices are not permitted. Failure to observe this requirement shall constitute a revocation of the CE approval and manufacturer's warranty. Intended use NOTICE may only be used for the applications specified in the catalog and the corresponding technical documentation. If the device is used in a manner other than the one specified by Siemens, the protection offered by the device might be impaired. See also the section "Legal notices" at the beginning of this manual. Repairs WARNING The device contains no user-serviceable parts. May cause death or serious injury Unauthorized opening or improperly performed repairs can cause considerable damage to property and/or danger to users. Contact Siemens Support ( in case of error. Operating Instructions, 03/2018, A5E AA 7

10 Safety information 2.1 Safety information Safety information WARNING Connection only over safety extra-low voltage / protective extra-low voltage May cause death or serious injury The device is designed for operation using directly connectable safety extra-low voltage (SELV) with safe electrical separation according to IEC / EN / VDE or IEC / EN / DIN EN In order to maintain the safe characteristics of the low voltage circuits of the PN/M-Bus LINK, the 24 V rated voltage supply and external connections to communication ports must be supplied from approved sources which meet the requirements of various standards for SELV / PELV voltage-limited sources. Therefore only connect safety extra-low voltages (SELV) with safe electrical separation according to IEC / EN / VDE to the supply voltage connections and the communications interfaces. Working on the device or on connected components WARNING Risk of electric shock May cause death or serious injury Voltages > 60 V DC or 30 V AC may be present in the control cabinet. Therefore appropriate safety precautions must be taken to prevent contact during commissioning and maintenance work. Before carrying out any work on the device or on connected components, make sure that the installation is in a zero-voltage state. Use cable types with UL approval for UL-approved systems. 8 Operating Instructions, 03/2018, A5E AA

11 Safety information 2.2 Security information 2.2 Security information Siemens provides products and solutions with industrial security functions that support the secure operation of plants, systems, machines and networks. In order to protect plants, systems, machines and networks against cyber threats, it is necessary to implement and continuously maintain a holistic, state-of-the-art industrial security concept. Siemens products and solutions only form one element of such a concept. Customer is responsible to prevent unauthorized access to its plants, systems, machines and networks. Systems, machines and components should only be connected to the enterprise network or the internet if and to the extent necessary and with appropriate security measures (e.g. use of firewalls and network segmentation) in place. Additionally, Siemens guidance on appropriate security measures should be taken into account. For more information about industrial security, please visit ( Siemens products and solutions undergo continuous development to make them more secure. Siemens strongly recommends to apply product updates as soon as available and to always use the latest product versions. Use of product versions that are no longer supported, and failure to apply latest updates may increase customer s exposure to cyber threats. To stay informed about product updates, subscribe to the Siemens Industrial Security RSS Feed under ( 2.3 IT security Protective measures for SIMATIC NOTICE Only authorized personnel are permitted to access the system and carry out modifications. Operating Instructions, 03/2018, A5E AA 9

12 System overview Field of application is a communication gateway and enables the connection of SIMATIC controllers to the M-Bus fieldbus via PROFINET. It enables data and information exchange between PROFINET and M-Bus. Figure 3-1 SIMATIC 10 Operating Instructions, 03/2018, A5E AA

13 System overview 3.2 Features 3.2 Features General features 1 M-Bus connector (3-pin screw-type terminal). The device supports baud rates between 300 and 9600 baud. Communication with the individual slaves in the M-Bus network can be performed with different baud rates. The can be used in the line, star and tree network topologies. is always the M-Bus master. The M-Bus master reads the measurement data from the M-Bus slaves and supplies the M-Bus with power. You can connect up to 40 M-Bus slaves to the M-Bus network (standard loads with current consumption < 1.5 ma). If the current consumption of individual M-Bus slaves is more than a standard load, fewer M-Bus slaves can be connected. When an M-Bus slave is in a short-circuit state, the can still communicate with other M-Bus slaves. supports the "Primary address" and "Secondary address" addressing modes. 2 PROFINET interfaces (integrated switch) enable PROFINET line operation according to Conformance Class B (CC-B). is configured in the TIA Portal via a GSDML file. M-Bus features Implemented M-Bus functions: SND_NKE: Establish communication with M-Bus slave REQ_UD2: Request data from slave SND_UD: Enables addressing over secondary address Operating Instructions, 03/2018, A5E AA 11

14 System overview 3.3 System configuration 3.3 System configuration System configuration The following figure shows a basic system configuration with as a communication gateway between a PROFINET network and an M-Bus network. Figure 3-2 System configuration with Purpose and function of the system components enables the connection of the M-Bus to PROFINET. communicates with the CPU of the S7 controller exclusively via the PROFINET interface. From a PROFINET point of view, is an IO device according to Conformance Class B (CC-B). Cyclic data exchange between the and the connected SIMATIC-CPU is performed by updating the IO image. Acyclic communication is handled via the "Read Data Record" service. The power is supplied to the either via an external power supply unit with 24 V DC or via the 24 V power supply of the SIMATIC S7 system. The TIA Portal is used for configuring. A GSDML file is available for this purpose. 12 Operating Instructions, 03/2018, A5E AA

15 System overview 3.4 System requirements 3.4 System requirements System requirements Controller: Supported are SIMATIC S7-1200, SIMATIC S7-1500, SIMATIC ET 200SP, SIMATIC OpenController 24 V power supply M-Bus network PROFINET bus Windows PC (for configuring, commissioning and diagnostics) TIA Portal V15 We recommend a switch for configuring, commissioning and diagnostics. Operating Instructions, 03/2018, A5E AA 13

16 System overview 3.5 Design 3.5 Design PN/M-BUS LINK setup The following figure shows the arrangement of the connection and display elements on. The figure shows the device without a top and bottom enclosure cover. Design V DC + functional grounding Status LEDs device operating state + PROFINET MAC address that the device uses on PROFINET Status LEDs Ethernet interface for PROFINET Ethernet connection for PROFINET (X1P2) Connection for M-Bus Ethernet connection for PROFINET (X1P1) Status LEDs, M-Bus operating state Rating plate 14 Operating Instructions, 03/2018, A5E AA

17 Functions Cyclic and acyclic data exchange is always the M-Bus master. The functions of the enable you to read measured data from connected M-Bus devices. To do this, the M-Bus functions "SND_NKE", "SND_UD" and "REQ_UD2" are implemented in. It is not possible to configure or write to M-Bus devices. Communication paths The following figure shows the interrelationships in the communication between the S7 controller, and connected M-Bus devices. Figure 4-1 Communication paths between S7 controller, and M-Bus devices Operating Instructions, 03/2018, A5E AA 15

18 Functions 4.1 Cyclic and acyclic data exchange Cyclic data exchange: Control and status information The transmission of control and status information between the S7 controller and is performed via the cyclic IO process image. In order to read measurement data from a specific M-Bus device, the S7 user program sets the control bit for the respective M-Bus slave in the cyclic output data from the value "0" to the value "1". Table 4-1 Cyclic output data (Byte 0) Bit Meaning Value 0 Control bit for read request 0 No action Not used Read request to read measured data from M-Bus device If the accepts the call, it sets the corresponding status bit in the cyclic input data from "0" to "1". After the has read the measurement data from the addressed M-Bus device, it sets the corresponding status bit in the cyclic input data from "1" to "0". If an error occurs during a read attempt, the also sets the corresponding status bit to "0" but sets the error bit at the same time. In this case, the data record does not contain measured values. Table 4-2 Cyclic input data (Byte 0) Bit Meaning Value 0 Status bit for read request 0 Device inactive 1 Error bit for feedback of the read operation Not used Read operation in progress 0 No error occurred during last read operation 1 Error occurred during last read operation 16 Operating Instructions, 03/2018, A5E AA

19 Functions 4.1 Cyclic and acyclic data exchange Acyclic data exchange: Reading measurement data from M-Bus devices The measured values are transferred from the to the S7 control system through data records. The always reads all available measured values from an M-Bus device and saves the measured values as a data record. A data record is read via "Read Data Record" (RDREC). The default index number is 600. A data record contains the user data from the RSP_UD response telegram with the transmitted measured values, starting with the first DIF. The telegram header is not included in the data record. The data block with the measured data contained in the data record is transferred to the S7 controller without any changes. The corresponding evaluation and further processing of the measurement data must be performed by the user program. A data record has the following structure: Byte Name Data type Value Description 0 1 ResponseCode UINT16 Device error information 0 No error 1 No data available 2 M-Bus communication error - no data available 2 3 Mode UINT16 Specification of the M-Bus data structure 0 Variable data structure CI 1 = 72h/76h 1 Fixed data structure CI 1 = 73h/77h 4 5 Length UINT16 Total length of the M-Bus STRUCT in bytes 6 <END> Measured data M-Bus STRUCT Measured data from M-Bus device, starting with the first DIF (EN1434-3) 1) CI field (control information field) from received RSP_UD response telegram Operating Instructions, 03/2018, A5E AA 17

20 Functions 4.2 Response to errors 4.2 Response to errors Diagnostic resource The device provides various tools to isolate the cause. These tools are listed below: Diagnostic resource LED display SIMATIC diagnostics Description signals its status with the LEDs on the front of the enclosure. The meaning of the LEDs is described in section Status LEDs (Page 41). Information on the events that trigger a diagnostic message is available in the section Events that trigger a diagnostic message (Page 45). This section also includes a detailed description of the error that triggers the diagnostic message and possible measures. M-Bus status bit See section Cyclic and acyclic data exchange (Page 15) Device fault Device errors are indicated by the status LEDs. If necessary, corresponding diagnostic messages are also issued. These can then be taken from the diagnostic buffer of the S7 controller either immediately or during the next start-up. Note An Ethernet switch is integrated in. This switch is also operational in an error state so that the PROFINET network continues to run. 18 Operating Instructions, 03/2018, A5E AA

21 Application planning Installation guidelines General installation guidelines Observe the following guidelines when mounting and connecting : When connecting, ensure that you comply with all applicable and binding standards. Adhere to the relevant national and regional regulations when installing and operating the device. Check with the local authorities regarding the standards and rules to be followed in your particular case. Ensure a zero-voltage state during assembly and connection work. Observe the installation and wiring guidelines of your automation system and the M-Bus system. Guidelines for installing devices is classified as open equipment according to standards for electrical devices. You must install in an enclosure, switch cabinet or control room. The enclosure, control panel or control center may be located in residential areas, business and commercial areas or in a small business. Only authorized personnel must have access to the enclosure, control cabinet or control center. Installation and operation of is only permitted in a dry environment. Only one connection to SELV circuits is permitted. Only SELV circuits offer protection from electric shock in a dry environment. The installation must offer the required mechanical protection and environmental protection for open equipment in your specific location category according to the applicable electrical regulations and building code. Proper grounding and wiring of is important to achieve optimal operation and adequate immunity of your system and application. Operating Instructions, 03/2018, A5E AA 19

22 Application planning 5.2 Installation location 5.2 Installation location Selection of the installation site / installation You can mount either on a control panel or on a standard mounting rail: Installation in control cabinet / device connection box NOTICE The device is intended for installation in a control cabinet or in a device connection box. It is important to note that installation in a control cabinet or device connection box is essential for compliance with the UL regulations. The control cabinet / device connection box must satisfy the regulations regarding fireprotection housing. Ensure that all cables and leads that protrude externally are equipped with adequate strain relief. 20 Operating Instructions, 03/2018, A5E AA

23 Application planning 5.2 Installation location Permitted mounting positions and permitted ambient temperature The table below show the permitted temperature range for the different mounting positions. Mounting position Horizontal C Permitted ambient temperature Vertical C Lying C Hanging C NOTICE Damage due to overheating You must comply with all the instructions regarding the installation site and mounting position. Otherwise, the device may malfunction or incur permanent damage as a result of overheating. Operating Instructions, 03/2018, A5E AA 21

24 Application planning 5.2 Installation location Minimum spacing is designed for natural heat dissipation by convection. Therefore observe sufficient clearances: For horizontal mounting position: At least 35 mm above and below For vertical mounting position: At least 35 mm left and right of Provide sufficient space for the connection of supply voltage, Ethernet and M-Bus. Also make sure that a depth of at least 25 mm remains clear between the module front and the inside of the enclosure / control panel. Table 5-1 Device dimensions Dimensions of Width Height Depth 70 mm mm (including overhangs) 75 mm (including overhangs) You can find the dimension drawing of the in the section Dimension drawing (Page 53). Humidity and atmospheric pressure Ensure that there is no condensation at a relative humidity between 10% and 95%. Ensure that the atmospheric pressure is between 795 hpa and 1080 hpa. This corresponds to an installation height of m to m. Pollution degree is designed for Pollution Degree 2. Pollution degree 2 according to the EN standard is non-conductive contamination in the normal case which can briefly become conductive as a result of condensation when the device is out of service. Contamination of conductive parts by dust, humidity and air pollution can lead to operational errors and electrical faults in. Degree of protection The enclosure of the has IP20 degree of protection according to IEC The is classified as an "open type" or "open equipment" according to UL or IEC If is located in an area where contamination of conductive parts can occur, it must be protected by an enclosure with the appropriate degree of protection. IP54 is a protection class that is generally used for electronic systems in heavily polluted environments and may be suitable for your application. 22 Operating Instructions, 03/2018, A5E AA

25 Application planning 5.3 Transportation Electromagnetic compatibility (EMC) / overvoltage protection NOTICE Damage to the device Inadequately dimensioned overvoltage protection can result in severe damage to the device. Always ensure, therefore, that the overvoltage protection is adequate (see Chapter Connecting 24 V DC (Page 31)). 5.3 Transportation The devices must be transported in a clean and dry state, preferably in their original packaging. The transport temperature must be between -40 C and +70 C. Temperature fluctuations greater than 20 K per hour are not permitted. 5.4 Storage The devices must be stored in clean and dry rooms, preferably in their original packaging. The storage temperature must be between -40 C and +70 C. 5.5 Scope of delivery 2 retaining collars for the Ethernet connections (installed on the device in the delivery state) Compact operating instructions CD/DVD with license terms Unpacking and checking the delivery 1. Unpack the device. 2. Check the delivery for completeness. 3. Check the device for transport damage by visual inspection. NOTICE Damage to the system Damaged parts can result in damage to the system. Do not use devices that show evidence of damage! Operating Instructions, 03/2018, A5E AA 23

26 Mounting/Extending Installing the device can be mounted on a 35 mm standard mounting rail according to DIN EN or on a control panel. Information on the selection of the location of use as well as reliable mounting positions and minimum clearances is available in the section Installation location (Page 20). Mounting on a standard mounting rail Follow these steps: 1. Hook the into the mounting rail. 2. Swivel the backwards until the device audibly engages. Figure 6-1 Standard rail mounting of the NOTICE If the device is not installed on a control panel, the mounting sliders (see figure Control panel mounting item 1) must always be in the default positions set at the factory. Otherwise, the mounting slides can deform if they are exposed to hot and moist ambient conditions for long periods. Operating Instructions, 03/2018, A5E AA 24

27 Mounting/Extending 6.1 Installing the device Mounting to a control panel Preparations Drill holes (M4). The dimensions for the drill holes are available in the figure below. Mounting Proceed as follows: 1. Move the sliders 1 to the outside until they latch in place. 2. Tighten the. Use a cylinder head screw M4 as well as a spring lock washer and a flat washer for this. NOTICE Do not use a countersunk head screw. The type of screw required depends on the type of material on which the module is mounted. Fasten the screw with the corresponding torque until the spring lock washer is pressed flat. Do not fasten the screws with excessive torque. Figure 6-2 Control panel mounting of the Operating Instructions, 03/2018, A5E AA 25

28 Connecting Safety instructions and guidelines Safety information WARNING Connection only over safety extra-low voltage / protective extra-low voltage May cause death or serious injury The device is designed for operation using directly connectable safety extra-low voltage (SELV) with safe electrical separation according to IEC / EN / VDE or IEC / EN / DIN EN In order to maintain the safe characteristics of the low voltage circuits of the PN/M-Bus LINK, the 24 V rated voltage supply and external connections to communication ports must be supplied from approved sources which meet the requirements of various standards for SELV / PELV voltage-limited sources. Therefore only connect safety extra-low voltages (SELV) with safe electrical separation according to IEC / EN / VDE to the supply voltage connections and the communications interfaces. Working on the device or on connected components WARNING Risk of electric shock May cause death or serious injury Voltages > 60 V DC or 30 V AC are present in the control cabinet. Therefore appropriate safety precautions must be taken to prevent contact during commissioning and maintenance work. Before working on the or connected components, make sure that the system is de-energized. Operating Instructions, 03/2018, A5E AA 26

29 Connecting 7.1 Safety instructions and guidelines Wiring guidelines When wiring the, follow the wiring guidelines of your automation system (e.g. SIMATIC S7-1200, SIMATIC S7-1500, SIMATIC ET 200SP). Also observe the installation instructions and configuration guidelines for routing of the PROFINET cables. Cable routing and grounding Note Electromagnetic interference Ensure that all plants or systems in which is installed have sufficient equipotential bonding, for example, through a low impedance connection to the ground potential. Note Strain relief Ensure that all cables and leads that protrude externally are equipped with adequate strain relief. Other requirements NOTICE Damaged cables The cables must be suitably dimensioned to ensure that they cannot be damaged. Make sure that the cables are suitable for the individual application. Observe the bending radii. CAUTION For system for UL approval: The cables must be specified for an ambient temperature of at least +75 C. Operating Instructions, 03/2018, A5E AA 27

30 Connecting 7.2 Power supply and potential ratios 7.2 Power supply and potential ratios Block diagram Alternative connection option for M-Bus cable shield: 1 2 Connection of the shield to M-Bus screw-type terminal Connection of the shield to the shield busbar Figure 7-1 Block diagram Current consumption at the 24 V DC connection The supply voltage for the M-Bus network is generated from the supply voltage at the 24 V DC connection by means of a DC/DC converter (boost converter). The generated voltage is typically 12 V higher than the applied supply voltage. The current consumption at the 24 V DC connection depends on the configuration of the M-Bus network. Example 1: Typical current consumption Load on M-Bus: 5 standard loads (5 x 1.5 ma) Supply voltage: V M-Bus voltage: +36 V M-Bus baud rate: 9600 Bd Communication at both PN ports Total current = 85 ma () + 12 ma (M-Bus load current static) + 5 ma (M-Bus load current dynamic) = 102 ma Taking into consideration a reserve (unit dispersion) of 8%, the total current is 110 ma. 28 Operating Instructions, 03/2018, A5E AA

31 Connecting 7.2 Power supply and potential ratios Example 2: Maximum current consumption Load on M-Bus: 40 standard loads (40 x 1.5 ma) + 1 x short circuit (100 ma) Supply voltage: V M-Bus voltage: V M-Bus baud rate: 9600 Bd Communication at both PN ports Total current = 94 ma () ma (M-Bus load current static + short-circuit current) + 6 ma (M-Bus load current dynamic) = 376 ma. Taking into consideration a reserve (unit dispersion) of 6.4%, the total current is 400 ma. M-Bus connection The M-Bus connection provides the power supply of the M-Bus network and serves as communication interface. The master communicates with the slave through modulation of the voltage at the M-Bus connection (mark state: 36 V typical, space state: 24 V typical). The slave communicates with the master through modulation of the current consumption by the slave (space state: ma). The master hereby outputs the voltage for the mark state (36 V typical) to the M-Bus network. The required supply voltage for the mark state is generated by a DC/DC converter (boost converter) from the voltage at the 24 V DC connection and is typically 12 V higher than this voltage. The DC/DC converter is large enough that it can supply the current for the specified number of M-Bus slaves, the current for communication and the current for the short-circuit of a slave (max. 100 ma). The current consumption by the M-Bus network is measured and evaluated by a measurement resistance (RSense) at the M-Bus negative terminal (-). Potential ratios The signals of the PROFINET interfaces are electrically isolated from each other, from the internal electronics or 24 V supply voltage and from the fieldbus interfaces. The M-Bus interface is galvanically connected to the power supply. Operating Instructions, 03/2018, A5E AA 29

32 Connecting 7.2 Power supply and potential ratios Shielding PROFINET interface The shields of the PROFINET interface are galvanically connected. Always apply the shields of the PROFINET Ethernet cable at both ends. M-Bus interface You can use either shielded or unshielded M-Bus cables in the M-Bus network. However, we do recommend the use of shielded M-Bus cables. In accordance with the standard, the M-Bus cable shield should only be connected on the side of the M-Bus master. The M-Bus cable shield can alternatively be connected as follows: To a shield busbar (FE) To the M-Bus screw-type terminal. With this type of connection, there is capacitive grounding of the cable shield. NOTICE Adequate immunity to interference can only be achieved by attaching the shields of the PROFINET cables and M-Bus cables to a shield busbar in accordance with EMC requirements. 30 Operating Instructions, 03/2018, A5E AA

33 Connecting 7.3 Connecting 24 V DC 7.3 Connecting 24 V DC 24 V DC power supply 24 V DC connection The connection of the external 24 V power supply and of the functional earth is made over a 3-pin screw terminal 1. This is located under the upper flap on the enclosure. A suitable power supply is, for example, SIMATIC S Power Supply PM1207 (6EP1332-1SH71). 1 Connection for 24 V power supply Safety information WARNING Connection only over safety extra-low voltage / protective extra-low voltage May cause death or serious injury The device is designed for operation using directly connectable safety extra-low voltage (SELV) with safe electrical separation according to IEC / EN / VDE or IEC / EN / DIN EN In order to maintain the safe characteristics of the low voltage circuits of the PN/M-Bus LINK, the 24 V rated voltage supply and external connections to communication ports must be supplied from approved sources which meet the requirements of various standards for SELV / PELV voltage-limited sources. Therefore only connect safety extra-low voltages (SELV) with safe electrical separation according to IEC / EN / VDE to the supply voltage connections and the communications interfaces. Operating Instructions, 03/2018, A5E AA 31

34 Connecting 7.4 Connecting the functional ground Connector pin assignment The figure below shows the assignment of the terminal for the 24 V DC power supply. Table 7-1 Terminal assignment for the 24 DC power supply L+ 24 V supply for (+) M 24 V supply for (-) Functional ground Permissible torques for screw terminal: Minimum tightening torque: 0.5 Nm Maximum tightening torque: 0.6 Nm External lightning protector An external lightning protector can be installed in the 24 V DC supply line to protect against powerful pulses on the supply lines: We recommend the Dehn Blitzductor BXT ML2 BD 180, article number (on basis BXT BAS) or an equivalent protection element. Manufacturer: DEHN+SOEHNE GmbH+Co.KG, Hans-Dehn-Str.1, Postfach 1640, Neumarkt, Germany. The lightning protection module must be installed and used in accordance with the manufacturer's specifications. 7.4 Connecting the functional ground Connect the ground (e.g. from mounting rail) for discharge of EMI, such as bursts or surges, to the FE terminal (see Connecting 24 V DC (Page 31)). Permissible conductor cross-section: mm², AWG 26 - AWG 12 Note EMC-compliant functional grounding Use as short a stranded-wire conductor as possible with a large cross section. Compliance with the technical specifications of the device is only assured with a correct functional ground connection. Also see information and notes on shielding in the section Power supply and potential ratios (Page 28). 32 Operating Instructions, 03/2018, A5E AA

35 Connecting 7.5 Connecting PROFINET 7.5 Connecting PROFINET Connecting PROFINET PROFINET connection Connect Ethernet cable according to PROFINET specification to higher-level controller and / or the next PROFINET node 1. Use a shielded Ethernet cable with shielded connector for the connection. We recommend RJ45 connectors from the Siemens FastConnect system as connectors for the Ethernet cabling. Always apply the shields of the PROFINET Ethernet cable at both ends. 1 Ethernet connections for PROFINET 2 Retaining collar Note In order to increase the mechanical stability, optimized retaining collars 2 for the two Ethernet connections are attached to the lower part of the enclosure in the factory state. These retaining collars are intended for the Siemens FastConnect connectors. NOTICE Make sure you observe the minimum bending radius of the Ethernet cable; otherwise the shield effect of the cable shield may be impaired. There is also the risk that the cable shield breaks. NOTICE EMC stability is only guaranteed with shielded PROFINET cables. CAUTION Critical plant state The Ethernet switch integrated in is only operational once the PN/M-Bus LINK starts up. Restarting the interrupts the Ethernet switch function. Existing Ethernet connections via the switch are thus interrupted for the duration of the startup. This can result in critical plant states. Operating Instructions, 03/2018, A5E AA 33

36 Connecting 7.6 Connecting the M-Bus 7.6 Connecting the M-Bus Connecting the M-Bus The is connected to the M-Bus via a twowire cable to the M-Bus connection 1. Conductor cross-section: max. 1.5 mm 2 Suitable cables: Twisted two-wire line YCYM or J-Y(ST)Y 2 x 2 x 0.8 mm. To ensure interference-free communication, we recommend that you use a shielded cable for the connection. 1 M-Bus connection Note The maximum permissible length of the connecting cable is 300 m. Depending on the properties of the cable used, the baud rate and the number of connected slaves, the permissible length of the cable can be less than 300 m. Connector pin assignment The following figure shows the assignment of the terminal for the M-Bus connection. Table 7-2 Terminal assignment for the M-Bus connection Permissible torques for screw terminal: Minimum tightening torque: 0.5 Nm Maximum tightening torque: 0.6 Nm M+ M-Bus connection (+) M- M-Bus connection (-) M-Bus cable shield Also see information and notes on shielding in the section Power supply and potential ratios (Page 28). 34 Operating Instructions, 03/2018, A5E AA

37 Commissioning Commissioning Requirements The is mounted and connected to a SIMATIC S7 CPU via PROFINET. The M-Bus is connected to the and all other components are wired and connected. Basic commissioning procedure After commissioning of the hardware perform the additional steps required for commissioning in the TIA Portal. TIA Portal 1. Install the GSDML file. This step integrates the in the HW catalog (for details, see TIA Portal Devices & Networks (Page 36)). 2. Enter a PROFINET device name and an IP address for the. 3. Creating a project 4. Configuring in the TIA Portal (see also Configuring / Programming (Page 36)). 5. Download project to the S7 CPU 6. Set the SIMATIC-CPU to RUN mode. The corresponding configuration data is then downloaded automatically from the S7-CPU to the. 7. The light of the left RUN LED indicates that the device is in error-free operating state. When the right RUN LED lights up, this indicates that the M-Bus communication is running without error. Note The complete startup of the (initialization of the firmware, transfer of configuration data and startup of PROFINET and M-Bus communication) takes several seconds, depending on the complexity of the configuration. Result has been successfully commissioned. Operating Instructions, 03/2018, A5E AA 35

38 Configuring / Programming Overview is configured in the TIA Portal. Configuration mainly comprises the following steps: 1. Drag from the hardware catalog to the project 2. Connect S7 controller and via PROFINET 3. Set the PROFINET-specific parameters 4. Insert M-Bus devices 5. Configure device properties of the M-Bus devices 6. Check and compile the configuration The following section contains a brief description of the configuration steps for. The description is not based on a concrete example configuration. It is intended to explain the basic method for configuring the and to provide a quick introduction to configuring the. The remarks refer to TIA Portal V TIA Portal Devices & Networks Requirement Check whether the is contained in the hardware catalog of the TIA Portal. Otherwise, you must integrate the by installing a GSDML file. The GSDML file "GSDML-V2.32-Siemens-PN_MBUS_LINK-yyyymmdd.xml" is available for the TIA Portal V15. If needed, you can contact your Siemens contact person (mailto:customized.automation@siemens.com) to request the GSDML file. The GSDML file is installed in the TIA Portal via "Options > Manage generic description files (GSD)". Operating Instructions, 03/2018, A5E AA 36

39 Configuring / Programming 9.2 TIA Portal Devices & Networks TIA Portal: Devices & networks Follow these steps: 1. Select the with its specific article number from the hardware catalog 1. appears in the "Devices & networks"window. 2. Connect the CPU and via a PROFINET connection. The CPU and are then connected in the "Devices & networks" window over a green PN line Configure the PROFINET interface of the 3 based on the conditions of your PROFINET network. Figure 9-1 TIA Portal: Devices and networks Operating Instructions, 03/2018, A5E AA 37

40 Configuring / Programming 9.3 Inserting and configuring M-Bus devices 9.3 Inserting and configuring M-Bus devices is already entered as an M-Bus master in slot 1. You create M-Bus devices manually by inserting a generic M-Bus device from the hardware catalog. Inserting an M-Bus device 1. Double-click "M-Bus device" 1 in the hardware catalog. This places a generic M-Bus device as a module in the next available slot If necessary, edit the name of the M-Bus device. Figure 9-2 Inserting an M-Bus device M-Bus device parameters You can now configure the device parameters 3 for the M-Bus device created. Enter "Primary" or "Secondary" as the addressing mode and enter the corresponding address. The transmission rate can be set between 300 bps and 9600 bps for each individual M-Bus device. 38 Operating Instructions, 03/2018, A5E AA

41 Configuring / Programming 9.3 Inserting and configuring M-Bus devices Creating additional M-Bus devices You can create additional M-Bus devices as required. Note You can place a maximum of 40 M-Bus device modules from the hardware catalog. Empty slots between filled slots are not used for communication but still count. Module failure The setting of the input values in case of a module failure is a fixed value that cannot be changed. Figure 9-3 Module failure Adapting I/O addresses On the "I/O addresses" page, you can check and set the start and end addresses of the input and output data for the M-Bus device. In addition, the address range can be assigned to an organization block and a process image. I/O addresses are preset by the system. Figure 9-4 Adapting I/O addresses Operating Instructions, 03/2018, A5E AA 39

42 Configuring / Programming 9.4 Checking and compiling the configuration 9.4 Checking and compiling the configuration Checking / adapting I/O addresses If necessary, you must adapt the I/O addresses assigned automatically by the TIA Portal. This is possible, for example, in the "Device overview" window. Here you can also find the I/O addresses used by the slots. The addresses assigned to slot 1, i.e. the (Master) are especially important, since the control and status information is exchanged with the S7 program through them. Checking the configuration You can check the consistency of the configuration with a subsequent compilation. Controlling via the S7 user program To enable data to be transferred between the S7 controller and, you need to set the control information via the S7 user program accordingly. This control information is cyclically transferred from the S7 controller to the. You can find detailed information on this in the section Cyclic and acyclic data exchange (Page 15). 40 Operating Instructions, 03/2018, A5E AA

43 Diagnostics Status LEDs Operating state of the / PROFINET diagnostics The LEDs for visualizing the operating states of and the PROFINET ports are located on the front of the enclosure. Figure 10-1 Status LEDs - Operating state of / PROFINET diagnostics Operating Instructions, 03/2018, A5E AA 41

44 Diagnostics 10.1 Status LEDs RUN LED ERROR LED MAINT LED 1) On On On Operating state Power-up test / Serious error Description For approximately 1 second: LED test during startup Longer than 1 second: HW error detected during power-up test or other serious error Off Off Off System run-up System not completely booted yet but power-up test is complete. Flashes Off Off Not connected to S7 controller No "IO controller" connection established or configuration not yet completed. On x Off Connected to S7 controller "IO controller" connection established and configuration completed. x Flashes Off Error state "IO controller" connection established and configuration completed, but an error occurred: Diagnostic message to the S7 controller is pending or Incorrect configuration by the S7 controller Flashes for at least 3 seconds. Flashes Off Off Flashes Flashes Off Firmware update While the firmware is written to the flash memory. LEDs are flashing (triggered by TIA Portal) 3-second intervals For identification of the device 1) The MAINT LED currently has no meaning. x: LED state is irrelevant When starts up after the power supply is switched on, the process continues as follows: 1. The three LEDs light up briefly for about 1 second and then go dark again. 2. None of the LEDs light up for about 4 seconds. 3. The RUN LED starts flashing. 4. Once the startup of PN/M-Bus link has been successfully completed and the connection with the S7 controller has been established, the RUN LED lights up. 42 Operating Instructions, 03/2018, A5E AA

45 Diagnostics 10.1 Status LEDs Connection status of the M-Bus Connection status of the M-Bus signals its status with the M-Bus LEDs on the front of the enclosure. Figure 10-2 Status LEDs M-Bus Table 10-1 Behavior of the RUN LED RUN LED Meaning Note Off On Flashes is not in the RUN state -- is in the RUN state and is configured. is in the RUN state, but it is not configured Table 10-2 Behavior of the ERR LED ERR LED Meaning Note Off On No error on M-Bus -- Error on M-Bus Diagnostics active, see Diagnostic messages to the S7 controller (Page 45) Operating Instructions, 03/2018, A5E AA 43

46 Diagnostics 10.1 Status LEDs Connection status of Ethernet interfaces The LEDs for indicating the connection status of the Ethernet interfaces are located under a housing flap. Figure 10-3 Status LEDs, Ethernet interfaces LINK On Off Indicates whether there is a physical connection on the Ethernet level. Connection exists No connection exists Rx/Tx On Off Indicates whether a packet is being sent or received sends or receives a packet No packet is sent or received 44 Operating Instructions, 03/2018, A5E AA

47 Diagnostics 10.2 Diagnostic messages to the S7 controller 10.2 Diagnostic messages to the S7 controller Events that trigger a diagnostic message Diagnostics The table below provides you with the following information: Message text assigned to diagnostic Event for triggering the diagnostics Possible remedies Diagnostics-relevant events Table 10-3 Diagnostics-relevant events Diagnostics number Message text Event for triggering Module / submodule 1810 M-Bus disconnected M-Bus cable not connected or no device connected to the M-Bus M-Bus master 1811 M-Bus overcurrent Overcurrent on the M-Bus M-Bus master 1812 Read error during device access - primary device address / serial number: {1:x} 1813 Collision - Collision at primary address / serial number: {1:x} An error occurred while accessing a certain device. Communication collision on the M-Bus M-Bus device M-Bus device To correct or avoid error Check M-Bus connection Check M-Bus or connected devices for short-circuit Check device parameters Check if multiple devices use the same address Note Collision detection An increase in power of > 25 ma on the M-Bus side is considered to be a collision on the M-Bus. Collision means that: At least two M-Bus devices are sending simultaneously. Note M-Bus overcurrent A current > 200 ma on the M-Bus is considered to be an overcurrent. Operating Instructions, 03/2018, A5E AA 45

48 Diagnostics 10.2 Diagnostic messages to the S7 controller Status byte in cyclic IO image The cyclic IO image contains a status byte that informs when an error has occurred when reading from an M-Bus device. The status byte only contains the information that an error has occurred. Detailed information about the error that has occurred is contained in the corresponding data record. See section Cyclic and acyclic data exchange (Page 15). 46 Operating Instructions, 03/2018, A5E AA

49 Maintenance and service Firmware update Procedure Follow these steps: 1. Set the S7 CPU to STOP mode. 2. Trigger the update of in the TIA Portal. Depending on the configuration in the TIA Portal, starts again automatically after a successful update and waits for the configuration information from the S7 controller. 3. For operation, reset the S7 CPU to RUN mode. CAUTION Critical plant state The Ethernet switch integrated in is only operational once the PN/M-Bus LINK starts up. Restarting the interrupts the Ethernet switch function. Existing Ethernet connections via the switch are thus interrupted for the duration of the startup. This can result in critical plant states Reset to factory settings In the TIA Portal you have the option of resetting the device to factory settings. The following data is deleted on reset to factory settings: PROFINET parameter assignment (IP address for the PN side, PN name) and the SNMP parameters The I&M data are also deleted depending on the setting in the TIA Portal. Operating Instructions, 03/2018, A5E AA 47