CAN-PN PROFINET IO / CAN

Transcription

1 CAN-PN PROFINET IO / CAN Gateway Hardware Manual to Product C CAN-PN Hardware Manual Doc. No.: C / Rev. 1.1 Page 1 of 35 esd electronic system design gmbh Vahrenwalder Str Hannover Germany Fax: 0511/ Phone: 0511/ International:

2 N O T E The information in this document has been carefully checked and is believed to be entirely reliable. esd makes no warranty of any kind with regard to the material in this document, and assumes no responsibility for any errors that may appear in this document. esd reserves the right to make changes without notice to this, or any of its products, to improve reliability, performance or design. esd assumes no responsibility for the use of any circuitry other than circuitry which is part of a product of esd gmbh. esd does not convey to the purchaser of the product described herein any license under the patent rights of esd gmbh nor the rights of others. esd electronic system design gmbh Vahrenwalder Str Hannover Germany Phone: Fax: Internet: info@esd.eu USA / Canada: esd electronics Inc. 525 Bernardston Road Suite 1 Greenfield, MA USA Phone: Fax: Internet: us-sales@esd-electronics.com Page 2 of 35 Hardware Manual Doc. No.: C / Rev. 1.1 CAN-PN

3 Document file: Date of print: Document type number: DOC0800 I:\Texte\Doku\MANUALS\CAN\CAN-PN\Englisch\CAN-PN_Hardware_en_11.odt Firmware version: from Rev. 1.0 Document History The changes in the document listed below affect changes in the hardware as well as changes in the description of the facts, only. Revision Chapter Changes versus previous version Date 1.0 all First version of English hardware manual Security and conformity notes inserted at the beginning of the manual. 1. Number of maximum input and output data changed. 1.1 Chapter "Safety Instructions" inserted. 1.2 Chapter "Service Note" inserted. 3. Chapter "Starting Up" inserted 8. Appendix inserted. Descriptions concerning optional InRailBus moved to appendix Technical details are subject to change without further notice. CAN-PN Hardware Manual Doc. No.: C / Rev. 1.1 Page 3 of 35

4 Safety Instructions and Conformity! When working with CAN-PN follow the instructions below and read the manual carefully to protect yourself and the CAN-PN from damage. The esd guarantee does not cover damages which result from improper use or disregard of safety instructions and warnings.! Do not open the housing of the device. It does not contain any serviceable parts and does not require any manual configuration of the hardware. Dismantling the housing by personnel which is not authorized by esd causes the loss of all warranty claims.! In order to prevent overvoltage damage due to thunder storm, unplug the device from USB and CAN beforehand.! Never let liquids get inside the device. Otherwise, electric shocks or short circuits may result.! Protect the device from dust, moisture and steam. Remove all cables before cleaning. Clean the device with a slightly moist, lint-free cloth. Cleaning agents or solvents are not suitable.! Protect the device from shocks and vibrations.! The device may become warm during normal use. Always allow adequate ventilation around the device and use care when handling.! Do not operate the device adjacent to heat sources and do not expose it to unnecessary thermal radiation. Ensure an ambient temperature of C.! Do not use damaged or defective cables to connect the device and follow the CAN wiring hints at the end of the manual.! The device is intended for indoor use only.! The operation of the device in hazardous areas, or areas exposed to potentially explosive materials is not permitted.! The operation of the device for medical purposes is prohibited.! The CAN-PN is an industrial product and meets the demands of the EU regulations and EMC standards printed in the conformity declaration at the end of this manual. Warning: In a residential, commercial or light industrial environment the CAN-PN may cause radio interferences in which case the user may be required to take adequate measures. Page 4 of 35 Hardware Manual Doc. No.: C / Rev. 1.1 CAN-PN

5 Table of contents 1. Overview Safety Instructions Service Note Hardware-Installation Connections LEDs LED-Assignment Starting Up Technical Data General Technical Data Microcontroller CAN Interface PROFINET IO Interface DIAG, Serial Interface via USB-Interface Order Information Interfaces and Connector Assignments V-Power Supply Voltage Connector Assignment CAN Connector Assignment V and CAN via InRailBus PORT1, PORT2 - PROFINET IO Connector Assignment DIAG Default Settings of CAN-PN Connector Assignment Correctly Wiring Electrically Isolated CAN Networks CAN-Bus Troubleshooting Guide Termination CAN_H/CAN_L-Voltage Ground CAN Transceiver Resistance Test Appendix InRailBus (Option) Order Information InRailBus Accessories Connector Assignment Using InRailBus (Option) Installation of the Module Using InRailBus-Connector Connecting Power Supply and CAN Signals to CBX-InRailBus Connection of the Power Supply Voltage Connection of CAN Remove the CAN-CBX Module from InRailBus...34 CAN-PN Hardware Manual Doc. No.: C / Rev. 1.1 Page 5 of 35

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7 Overview 1. Overview C A N 5-pole Open style Connector In-Rail-Bus Connector Electrical Isolation Physical CAN Layer ISO V= DC/DC Converter +5V= LEDs CAN Controller SJA1000 ERTEC200 USB Logic PORT 1 RJ45 100BASE-TX PORT 2 RJ45 100BASE-TX DIAG USB-A PROFINET IO Combicon 5.08 Power Supply Power Supply 24 V= 32 MB SDRAM 4 MB Flash EEPROM Figure 1: Block circuit diagram The module CAN-PN can link any PROFINET IO-controller to a CAN network. The CAN-PN gateway itself operates as a PROFINET IO-device with a maximum of 256 bytes input data and 256 bytes output data on the PROFINET IO bus. The CAN-PN connects CAN modules with CANopen (CiA DS 301) or layer-2 (ISO ) applications to e.g. a SIMATIC-S7. The number of CAN participants is not limited by the gateway. The CAN-PN module operates internally with an ARM processor ERTEC200 type, which buffers the CAN and PROFINET IO data in a local SDRAM. The firmware and configuration data are kept in the Flash. Parameters are stored by means of a serial EEPROM. The CAN high speed (ISO ) compatible CAN-interface allows a maximum data-transfer rate of 1 Mbit/s. The 100BASE-TX PROFINET-IO interface is compatible to IEEE802.3 and runs with 100 Mbit/s. The PROFINET-IO as well as the CAN interface are electrically isolated. According to standard, the PROFINET-IO interface is equipped with two RJ-45-sockets. An Ethernet switch is integrated in the ERTEC200. CAN is connected via a 5-pin COMBICON spring force plug. The module can be configured via PROFINET IO configuration tool, e.g. the PLC SIMATIC Manager. No additional configuration tools are required! CAN-PN Hardware Manual Doc. No.: C / Rev. 1.1 Page 7 of 35

8 Overview 1.1 Safety Instructions When working with CAN-PN follow the instructions and information about safety and conformity (see page 4) and read the manual carefully to protect yourself and the CAN-PN from damage. The intended use is the operation of the CAN-PN as PROFINET IO / CAN gateway. The esd guarantee does not cover damages which result from improper use or disregard of safety instructions and warnings. 1.2 Service Note The CAN-PN does not contain any parts that require maintenance by the user. Page 8 of 35 Hardware Manual Doc. No.: C / Rev. 1.1 CAN-PN

9 Hardware-Installation 2. Hardware-Installation 2.1 Connections Figure 2: Connections in operable state See also page 16 for signal assignments of the connectors. CAN-PN Hardware Manual Doc. No.: C / Rev. 1.1 Page 9 of 35

10 Hardware-Installation 2.2 LEDs LED-Assignment Figure 3: Position of the LEDs in the front panel LED Colour Function Indication Description LED name in schematic diagram F yellow Identification off blinking no request of the SIMATIC-Manager for identification of the unit request of the SIMATIC-Manager for identification of the unit LED1A E red PROFINET IO link status off on valid PROFINET IO connection exists no valid PROFINET IO connection LED1B P green Firmware booted off on firmware not yet booted. firmware booted. LED1C off no power supply 1x short flash CAN Error (morse code "E") C green CAN bus status 3x short flash CAN Off (morse code "O") LED1D short-longlong CAN Warning (morse code "W") on CAN bus OK Table 1: Indication of the LEDs Page 10 of 35 Hardware Manual Doc. No.: C / Rev. 1.1 CAN-PN

11 PROFINET-IO-RJ-45-Socket-LEDs of PORT1 and PORT2 Hardware-Installation LED Colour Indication Description Link green off on no PROFINET IO or Ethernet connection PROFINET IO or Ethernet connection exists. off no PROFINET IO connection Activity yellow blinking configuration on PROFINET IO connection active Table 2: Indication of the RJ-45-LEDs CAN-PN Hardware Manual Doc. No.: C / Rev. 1.1 Page 11 of 35

12 Starting Up 3. Starting Up To start up the CAN-PN follow the instructions below. Step Read the safety instructions at the beginning of this document carefully before you start with the hardware installation! see chapter see page Mount the CAN-PN module and connect power supply voltage CAN bus and PROFINET-IO Please remember that the CAN bus has to be terminated at both ends. esd offers T-connectors and terminators. Additionally, the CAN-GND-signal has to be grounded at exactly one point in the CAN network. Therefore the CAN termination connectors offered by esd have got a grounding contact. A CAN device whose CAN interface is not electrically isolated corresponds to the grounding of the CAN-GND Continue with the installation of the software, as described in the software manual of the CAN-PN in chapter: 'Implementation'. - - Page 12 of 35 Hardware Manual Doc. No.: C / Rev. 1.1 CAN-PN

13 Technical Data 4. Technical Data 4.1 General Technical Data Power supply voltage nominal voltage 24 V/DC ±10%, current consumption (24 V, 20 C): typical: 120 ma Connectors 24V 24V-power supply voltage (X1, 4-pin COMBICON-plug with spring-cage connection) CAN DIAG PORT1, PORT2 InRailBus CAN bus interface (X2, 5-pin Phoenix Contact MC 1,5/5-GF-3,81) DIAG-interface (X3, USB-socket type B) PROFINET IO-interface PORT1, PORT2 (X4, 2x RJ-45-socket with integrated transformer and LEDs) CAN bus interface and power supply voltage via InRailBus (X5, 5-pin ME-MAX-TBUS-connector, accessories) Temperature range Humidity Dimensions Weight C ambient temperature max. 90%, non-condensing width: 23 mm, height: 100 mm, depth: 113 mm (without connectors) 130 g Table 3: General data of the module 4.2 Microcontroller Microcontroller Memory ERTEC200, 150 MHz SDRAM: NOR-Flash: SPI-EEPROM 32 MB 4 Mbyte 128Kbit Table 4: Microcontroller unit CAN-PN Hardware Manual Doc. No.: C / Rev. 1.1 Page 13 of 35

14 Technical Data 4.3 CAN Interface Number of CAN interfaces 1 x CAN CAN controller SJA1000, ISO Electrical isolation Physical CAN Layer Bus termination Connector 500 V (effective) between CAN potential and module-system-potential with pollution degree 1 Physical Layer according to ISO , transmission rate programmable from 10 Kbit/s to 1 Mbit/s Terminating resistor has to be set externally, if required CAN (X2) 5-pin COMBICON or optional via InRailBus (X5) Table 5: Data of the CAN interface 4.4 PROFINET IO Interface Number of interfaces Connection Controller Connector 2, PROFINET IO PORT1, PORT2 RJ-45, BASE-TX, 100 Mbit/s, compatible to IEEE 802.3, electrical isolation via RJ-45-socket with integrated transformer ERTEC200 PORT1, PORT2 (X4), 2x RJ-45 socket with integrated transformer and LEDs Table 6: Data of PROFINET IO interface 4.5 DIAG, Serial Interface via USB-Interface Type USB-specification Connector USB, Virtual COM Port USB 2.0 Full Speed (12Mbit/s) DIAG (X3), USB-socket type-b Table 7: Data of the USB interface Page 14 of 35 Hardware Manual Doc. No.: C / Rev. 1.1 CAN-PN

15 Technical Data 4.6 Order Information Type Properties Order No. CAN-PN Manuals: CAN-PN-MD CAN-PN-ME PROFINET IO- CAN Gateway, CAN 2.0A/B (11/29-Bit CAN-ID), GSD file CAN-PN Manual in German (Hardware and software manual) CAN-PN Manual in English (Hardware and software manual) C C C Table 8: Order information CAN-PN Hardware Manual Doc. No.: C / Rev. 1.1 Page 15 of 35

16 Interfaces and Connector Assignments 5. Interfaces and Connector Assignments V-Power Supply Voltage The power supply voltage can be fed via connector 24V (X1) or optional via InRailBus (connector assignment see page 19) Connector Assignment Device connector: Line connector: Phoenix Contact MSTBO 2,5/4-G1L-KMGY Phoenix Contact FKCT 2,5/4-ST, 5.0 mm pitch, spring-cage connection, Phoenix Contact order No.: (included in the scope of delivery) Pin Position: Pin Assignment: Pin Labelling of CAN-PN M P Signal Do not connect! Do not connect! M24 (GND) P24 (+ 24 V) Please, refer also to the connecting diagram on page 9. Attention! It is not permissible to feed through the power supply voltage through the connector X1 and to supply the power supply voltage to another CAN module station! A feed through of the +24 V power supply voltage can cause damage on the modules. Signal Description: P24... power supply voltage +24 V ± 10 % M24... reference potential Page 16 of 35 Hardware Manual Doc. No.: C / Rev. 1.1 CAN-PN

17 Interfaces and Connector Assignments 5.2 CAN An 82C251 is used as driver unit. The differential CAN Bus signals are electrically isolated from the other signals via dual digital isolator and DC/DC-converter. 5.0V GND DC/DC S7U V + 5V - - CAN_GND +5V +24 V GND CAN_GND X5 InRailBus CAN_H 1 CAN_L 2 CAN_Tx CAN_Rx 5.0V Digital Isolator ADuM1201BRZ VIB VOA VDD1 GND1 VOB VIA VDD2 GND2 100nF 100nF VC120605D150 CAN Transceiver PCA82C251 TX RX VDD R/GND BUSL BUSH GND Functional earth contact (FE) FE CAN_L CAN_H CAN_GND Shield X2 S (Connection to top hat rail) MC 1,5/5-GF-3, Figure. 4: CAN-Interface The CAN interface can be connected via CAN connector (X2) or optional via InRailBus. Use the mounting-rail bus connector of the CBX-InRailBus for the connection via the InRailBus, see order information in the appendix (page 29). CAN-PN Hardware Manual Doc. No.: C / Rev. 1.1 Page 17 of 35

18 Interfaces and Connector Assignments Connector Assignment Device connector: Line connector: Phoenix Contact MC 1,5/5-GF-3,81 Phoenix Contact FK-MCP 1,5/5-STF-3,81, spring-cage connection Phoenix Contact order No.: (included in delivery) Pin Position: (Illustration of device connector) Pin Assignment: Pin Signal 1 CAN_GND 2 CAN_L 3 Shield 4 CAN_H 5 - Signal Description: CAN_L, CAN_H... CAN signals CAN_GND... reference potential of the local CAN physical layer Shield... pin for line shield connection (using hat rail mounting direct contact to the mounting rail potential) -... not connected Recommendation of an adapter cable from 5-pin COMBICON (here line connector FK-MCP1,5/5-STF_3,81 with spring-cage-connection) to 9-pin DSUB: The assignment of the 9- pin DSUB-connector is designed according to CiA DS-102. The assignment of the 5-pin Mini- COMBICON is designed according to CiA DR-303 Part 1 Page 18 of 35 Hardware Manual Doc. No.: C / Rev. 1.1 CAN-PN

19 Interfaces and Connector Assignments V and CAN via InRailBus Power supply voltage and CAN can optionally be fed via InRailBus. Use the mounting-rail bus connector of the CBX-InRailBus for the connection via the InRailBus, see order information in the appendix (page 29). Take notice of the instructions for connecting power supply and CAN signals via InRailBus in the appendix! CAN-PN Hardware Manual Doc. No.: C / Rev. 1.1 Page 19 of 35

20 Interfaces and Connector Assignments 5.4 PORT1, PORT2 - PROFINET IO An Ethernet-Switch and the Ethernet PHYs are integrated in the ERTEC200. The PROFINET IO ports PORT1 and PORT2 have got equal rights and no preferred direction. PLC IO-Controller CAN-PN PROFINET IO-Device PROFINET PORT2 PROFINET PORT1 Ethernet Switch to other PROFINET IO-Devices Figure. 5: Example for the connection of PROFINET IO-ports Connector Assignment Device connector: 2x RJ45 with integrated transformer and LEDs (yellow/green) Connector View: Pin Assignment: The pin assignment is designed compatible to IEEE for 100BASE-TX, RJ45 socket. Page 20 of 35 Hardware Manual Doc. No.: C / Rev. 1.1 CAN-PN

21 Interfaces and Connector Assignments 5.5 DIAG The diagnosis interface (X3) is realised as Virtual COM Port via USB interface Default Settings of CAN-PN The default setting of the Virtual COM-Port is: Bit rate: Baud Data bits: 8 Parity: no Stop bits: 1 Handshake: no i Note: For the diagnosis these default settings have to be entered in the Terminal-Program used (e.g. Windows HyperTerminal of Microsoft). When Updates are installed the default settings are automatically transferred by the update program Connector Assignment Note: The module may only be connected to USB nets with USB interfaces with version 1.1 or 2.0! Operability can only be guaranteed for these USB-interfaces. Pin Position: Pin Assignment: Pin Signal 1 V BUS 2 D- 3 D+ 4 GND Shell Shield USB socket (Type B) CAN-PN Hardware Manual Doc. No.: C / Rev. 1.1 Page 21 of 35

22 Correctly Wiring Electrically Isolated CAN Networks 6. Correctly Wiring Electrically Isolated CAN Networks Generally all instructions applying for wiring regarding an electromagnetic compatible installation, wiring, cross sections of wires, material to be used, minimum distances, lightning protection, etc. have to be followed. The following general rules for the CAN wiring must be followed: 1 A suitable type of wire (wave impedance approx. 120 W ±10%) with an adequate wire cross section has to be used and the voltage loss in the wire has to be considered! 2 A CAN data wire requires two twisted wires and a wire to conduct the reference potential (CAN_GND)! For this the shield of the wire should be used! 3 The reference potential CAN_GND has to be connected to the earth potential (PE) at one point. Exactly one connection to earth has to be established! 4 A CAN net must not branch (exception: short dead-end feeders) and has to be terminated by the wave impedance of the wire (generally 120 W ±10%) at both ends (between the signals CAN_L and CAN_H)! 5 Dead-end feeders have to kept as short as possible (l < 0.3 m)! 6 The bit rate has to be adapted to the wire length. 7 CAN wires should not be laid directly next to disturbing sources. If this cannot be avoided, double shielded wires are preferable. 8 When using double shielded wires the external shield has to be connected to the earth potential (PE) at one point. There must be not more than one connection to earth. Wire structure Signal assignment of wire and connection of earthing and terminator CAN_H CAN_L CAN_GND Shielded wire with transposed wires 120 Ohm DSUB9 connector (female or male) pin designation 1 n.c n.c. 5 n.c. 6 n.c. 7 8 n.c. 9 n.c. connector case n.c. CAN wire with connectors n.c. = not connected CAN_GND (at wire shield) CAN_L CAN_H DSUB9 connector (female or male) pin designation n.c n.c. 4 n.c. 5 n.c. 6 7 n.c. 8 n.c. 9 n.c. connector case 120 Ohm earth (PE) Figure.: Structure and connection of Wire Page 22 of 35 Hardware Manual Doc. No.: C / Rev. 1.1 CAN-PN

23 Cabling Correctly Wiring Electrically Isolated CAN Networks for devices which have only one CAN connector per net use T-connector and stub (shorter than 0.3 m) (available as accessory) Figure: Example for correct wiring (when using single shielded wires) Terminal Resistance use external terminator, because this can later be found again more easily! 9-pin DSUB-terminator with male and female contacts and earth terminal are available as accessories Earthing CAN_GND has to be conducted in the CAN wire, because the individual esd modules are electrically isolated from each other! CAN_GND has to be connected to the earth potential (PE) at exactly one point in the net! each CAN user without electrically isolated interface works as an earthing, therefore: do not connect more than one user without potential separation! Earthing can e.g. be made at a connector CAN-PN Hardware Manual Doc. No.: C / Rev. 1.1 Page 23 of 35

24 Correctly Wiring Electrically Isolated CAN Networks Wire Length Optical couplers are delaying the CAN signals. By using fast digital isolators and testing each board at 1 Mbit/s, esd modules typically reach a wire length of 37 m at 1 Mbit/s within a closed net without impedance disturbances like e.g. longer stub. Bit rate [Kbit/s] Typical values of reachable wire length with esd interface l max [m] CiA recommendations (07/95) for reachable wire lengths l min [m] Table: Reachable wire lengths depending on the bit rate when using esd-can interfaces Page 24 of 35 Hardware Manual Doc. No.: C / Rev. 1.1 CAN-PN

25 Examples for CAN Wires Manufacturer Correctly Wiring Electrically Isolated CAN Networks Type of wire U.I. LAPP GmbH Schulze-Delitzsch-Straße Stuttgart ConCab GmbH Äußerer Eichwald Mainhardt e.g. UNITRONIC -BUS CAN UL/CSA UNITRONIC -BUS-FD P CAN UL/CSA e. g. BUS-PVC-C (1 x 2 x 0,22 mm²) BUS-Schleppflex-PUR-C (1 x 2 x 0,25 mm²) (UL/CSA approved) (UL/CSA approved) Order No.: (UL appr.) Order No.: (UL appr.) i Note: Completely configured CAN wires can be ordered from esd. CAN-PN Hardware Manual Doc. No.: C / Rev. 1.1 Page 25 of 35

26 CAN-Bus Troubleshooting Guide 7. CAN-Bus Troubleshooting Guide The CAN-Bus Troubleshooting Guide is a guide to find and eliminate the most frequent hardwareerror causes in the wiring of CAN-networks. 2 3 V V 120 CAN_H CAN_L CAN_H CAN_L 120 Ω 1 CAN_GND CAN_GND Abb. : Simplified diagram of a CAN network 7.1 Termination The termination is used to match impedance of a node to the impedance of the transmission line being used. When impedance is mismatched, the transmitted signal is not completely absorbed by the load and a portion is reflected back into the transmission line. If the source, transmission line and load impedance are equal these reflections are eliminated. This test measures the series resistance of the CAN data pair conductors and the attached terminating resistors. To test it, please 1. Turn off all power supplies of the attached CAN nodes. 2. Measure the DC resistance between CAN_H and CAN_L at the middle and ends of the network 1 (see figure above). The measured value should be between 50 Ω and 70 Ω. The measured value should be nearly the same at each point of the network. If the value is below 50 Ω, please make sure that: - there is no short circuit between CAN_H and CAN_L wiring - there are not more than two terminating resistors - the nodes do not have faulty transceivers. If the value is higher than 70 Ω, please make sure that: - there are no open circuits in CAN_H or CAN_L wiring - your bus system has two terminating resistors (one at each end) and that they are 120 Ω each. Page 26 of 35 Hardware Manual Doc. No.: C / Rev. 1.1 CAN-PN

27 CAN-Bus Troubleshooting Guide 7.2 CAN_H/CAN_L-Voltage Each node contains a CAN transceiver that outputs differential signals. When the network communication is idle the CAN_H and CAN_L voltages are approximately 2.5 volts. Faulty transceivers can cause the idle voltages to vary and disrupt network communication. To test for faulty transceivers, please 1. Turn on all supplies. 2. Stop all network communication. 3. Measure the DC voltage between CAN_H and GND (see figure above). 4. Measure the DC voltage between CAN_L and GND (see figure above). 3 2 Normally the voltage should be between 2.0 V and 4.0 V. If it is lower than 2.0 V or higher than 4.0 V, it is possible that one or more nodes have faulty transceivers. For a voltage lower than 2.0 V please check CAN_H and CAN_L conductors for continuity. For a voltage higher than 4.0 V, please check for excessive voltage. To find the node with a faulty transceiver please test the CAN transceiver resistance (see chapter: 7.4 CAN Transceiver-Resistance Test ). 7.3 Ground The shield of the CAN network has to be grounded at only one location. This test will indicate if the shielding is grounded in several places. To test it, please Disconnect the shield wire (Shield) from the ground. Measure the DC resistance between Shield and ground (see picture on the right hand). CAN_H CAN_L CAN_GND 3. Connect Shield wire to ground. Ω >1M Fig.: Simplified schematic diagram of ground test measurement The resistance should be higher than 1 M Ω. If it is lower, please search for additional grounding of the shield wires. CAN-PN Hardware Manual Doc. No.: C / Rev. 1.1 Page 27 of 35

28 CAN-Bus Troubleshooting Guide 7.4 CAN Transceiver Resistance Test CAN transceivers have one circuit that controls CAN_H and another circuit that controls CAN_L. Experience has shown that electrical damage to one or both of the circuits may increase the leakage current in these circuits. To measure the current leakage through the CAN circuits, please use an resistance measuring device and: 1. Switch off the node 4 and disconnect it from the network. (see figure below). 2. Measure the DC resistance between CAN_H and CAN_GND (see figure below). 3. Measure the DC resistance between CAN_L and CAN_GND (see figure below). 5 6 Normally the resistance should be between 1 M Ω and 4 M Ω or higher. If it is lower than this range, the CAN transceiver is probably faulty. CAN-node 5 6 Ω Ω CAN- Transceiver CAN_H CAN_L CAN_GND Power 4 Disconnect CAN! 4 Disconnect Power! Figure.: Simplified diagram of a CAN node Page 28 of 35 Hardware Manual Doc. No.: C / Rev. 1.1 CAN-PN

29 Appendix InRailBus (Option) 8. Appendix InRailBus (Option) 8.1 Order Information InRailBus Accessories Type Properties Order No. Accessories CAN-CBX-TBUS Mounting-rail bus connector of the CBX- InRailBus for CAN-CBX modules C CAN-CBX-TBUS- Connector CAN-CBX-TBUS- Connection adapter Terminal plug of the CBX-InRailBus for the connection of the +24V power supply voltage and the CAN interface Female type Terninal plug of the CBX-InRailBus for the connection of the +24V power supply voltage and the CAN-Interface Male type Table 9: Order information C C CAN-PN Hardware Manual Doc. No.: C / Rev. 1.1 Page 29 of 35

30 Appendix InRailBus (Option) 8.2 Connector Assignment Connector type: Mounting-rail bus connector of the CBX-InRailBus Phoenix Contact ME 22,5 TBUS 1,5/5-ST-3,81 KMGY Connector View: Pin Assignment: Pin Signal 5 M24 (GND) 4 P24 (+24 V) 3 CAN_GND 2 CAN_L 1 CAN_H S FE (PE_GND) Signal Description: CAN_L, CAN_H... CAN signals CAN_GND... reference potential of the local CAN-Physical layers P24... power supply voltage +24 V M24... reference potential FE... functional earth contact (EMC) (connected to mounting rail potential) Page 30 of 35 Hardware Manual Doc. No.: C / Rev. 1.1 CAN-PN

31 Appendix InRailBus (Option) 8.3 Using InRailBus (Option) i Note: This chapter describes the installation of the module using InRailBus for CAN-CBXmodules. For the CAN-PN module the following points apply accordingly. 8.4 Installation of the Module Using InRailBus-Connector If the CAN bus signals and the power supply voltage shall be fed via the InRailBus, please proceed as follows: Figure. 6: Mounting rail with bus connector 1. Position the InRailBus connector on the mounting rail and snap it onto the mounting rail using slight pressure. Plug the bus connectors together to contact the communication and power signals (in parallel with one). The bus connectors can be plugged together before or after mounting the CAN-CBX modules. 2. Place the CAN-CBX module with the DIN rail guideway on the top edge of the mounting rail. Figure. 7: Mounting CAN-CBX modules CAN-PN Hardware Manual Doc. No.: C / Rev. 1.1 Page 31 of 35

32 Appendix InRailBus (Option) 3. Swivel the CAN-CBX module onto the mounting rail in pressing the module downwards according to the arrow as shown in figure 7. The housing is mechanically guided by the DIN rail bus connector. 4. When mounting the CAN-CBX module the metal foot catch snaps on the bottom edge of the mounting rail. Now the module is mounted on the mounting rail and connected to the InRailBus via the bus connector. Connect the bus connectors and the InRailBus, if not already done. Figure. 8: Mounted CAN-CBX module Page 32 of 35 Hardware Manual Doc. No.: C / Rev. 1.1 CAN-PN

33 Appendix InRailBus (Option) Connecting Power Supply and CAN Signals to CBX-InRailBus To connect the power supply and the CAN-signals via the InRailBus, a terminal plug (order no.: C ) is needed. The terminal plug is not included in delivery and must be ordered separately (see order information). Figure. 9: Mounting rail with InRailBus and terminal plug Plug the terminal plug into the socket on the right of the mounting-rail bus connector of the InRailBus, as described in Figure 9. Then connect the CAN interface and the power supply voltage via the terminal plug Connection of the Power Supply Voltage Attention! It is not permissible to feed through the power supply voltage through the CBX station and to supply it to another CBX station via 24V connector! A feed through of the +24 V power supply voltage can cause damage on the CBX modules. Figure. 10: Connecting the power supply voltage to the CAN-CBX station CAN-PN Hardware Manual Doc. No.: C / Rev. 1.1 Page 33 of 35

34 Appendix InRailBus (Option) Connection of CAN Figure. 11: Connecting the CAN signals to the CAN-CBX station Generally the CAN signals can be fed via the CAN connector of the first CAN-CBX module of the CBX station. The signals are then connected through the CAN-CBX station via the InRailBus. To lead through the CAN signals the CAN bus connector of the last CAN-CBX module of the CAN- CBX station has to be used. The CAN connectors of the CAN-CBX modules which are not at the ends of the CAN-CBX station must not be connected to the CAN bus, because this would cause incorrect branching. A bus termination must be connected to the CAN connector of the CAN-CBX module at the end of the CBX-InRailBus (see Fig. 11), if the CAN bus ends there. 8.5 Remove the CAN-CBX Module from InRailBus If the CAN-CBX module is connected to the InRailBus please proceed as follows: Release the module from the mounting rail in moving the foot catch (see Fig. 8) downwards (e.g. with a screwdriver). Now the module is detached from the bottom edge of the mounting rail and can be removed. i Note: It is possible to remove individual devices from the whole without interrupting the InRailBus connection, because the contact chain will not be interrupted. Page 34 of 35 Hardware Manual Doc. No.: C / Rev. 1.1 CAN-PN

35 Appendix InRailBus (Option) CAN-PN Hardware Manual Doc. No.: C / Rev. 1.1 Page 35 of 35