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Wiring Notes

Hardware-Manual • Doc.-No.: C.2844/6.21

Rev. 1.9

CAN-CBM-DP / DN-CBM-DP

Page 36 of 45

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5.2 Light Industrial Environment (Single Twisted Pair Cable)

5.2.1 General Rules

The following general rules for CAN wiring with single shielded single twisted pair cable should
be followed:

A cable type with a wave impedance of about 120

±10% with an adequate conductor cross-

section (

0.22 mm²) has to be used. The voltage drop over the wire has to be considered!

For light industrial environment use at least a two-wire CAN cable.
Connect

the two twisted wires to the data signals (CAN_H, CAN_L) and

the cable shield to the reference potential (CAN_GND).

The reference potential CAN_GND has to be connected to the functional earth (FE) at
exactly one point.

A CAN net must not branch (exception: short cable stubs) and has to be terminated with the
characteristic impedance of the line (generally 120

±10%) at both ends (between the signals

CAN_L and CAN_H and not at CAN_GND)!

Keep cable stubs as short as possible (l < 0.3 m)!

Select a working combination of bit rate and cable length.

Keep away cables from disturbing sources. If this cannot be avoided, double shielded wires are
recommended.

Figure. 14: CAN wiring for light industrial environment

Содержание C.2844.03

Страница 1: ...e 1 of 45 esd electronics gmbh Vahrenwalder Str 207 30165 Hannover Germany http www esd eu Phone 49 0 511 3 72 98 0 Fax 49 0 511 3 72 98 68 CAN CBM DP Profibus DP CAN Gateway DN CBM DP Profibus DP DeviceNet Gateway Hardware Manual to Product C 2844 03 05 and C 2846 02 ...

Страница 2: ... and reproduction of this document in any form whole or in part are subject to esd s written approval 2018 esd electronics gmbh Hannover esd electronics gmbh Vahrenwalder Str 207 30165 Hannover Germany Phone 49 511 372 98 0 Fax 49 511 372 98 68 E mail info esd eu Internet www esd eu This manual contains important information and instructions on safe and efficient handling of the module Carefully r...

Страница 3: ... version 1 7 1 1 Description of PROFIBUS DP data range inserted 1 2 Description of PROFIBUS DP data range inserted 1 8 Safety Instructions and Classification of Warning Messages inserted 1 1 1 2 Chapter revised 1 3 Note concerning LEDs inserted 2 Chapter Hardware Installation inserted 4 Chapter restructured and renamed to Connector Assignment 4 1 1 Description of connector inserted 4 4 Safety note...

Страница 4: ...afety instructions and warning messages These messages may also include a warning relating to property damage DANGER Danger statements indicate a hazardous situation which if not avoided will result in death or serious injury WARNING Warning statements indicate a hazardous situation that if not avoided could result in death or serious injury CAUTION Caution statements indicate a hazardous situatio...

Страница 5: ...ult Protect the CBM DP module from dust moisture and steam Protect the CBM DP module from shocks and vibrations The CBM DP module may become warm during normal use Always allow adequate ventilation around the CBM DP module and use care when handling Do not operate the CBM DP module adjacent to heat sources and do not expose it to unnecessary thermal radiation Ensure an ambient temperature as speci...

Страница 6: ... CBM DP does not require any manual configuration of the hardware Unauthorized intervention in the device voids warranty claims Remove all cables before cleaning Clean the device with a lint free cloth Cleaning agents or solvents are not suitable Disposal Devices which have become defective in the long run have to be disposed in an appropriate way or have to be returned to the manufacturer for pro...

Страница 7: ...4 4 1 CAN DeviceNet X400 24 4 1 1 CAN CBM DP CAN Bus X400 5 pin Combicon Style 24 4 1 2 DN CBM DP DeviceNet X400 5 pin Combicon Style 25 4 2 Profibus DP Interface X100 CBMPB 9 pin DSUB female 26 4 3 Serial Interface X100 27 4 3 1 RS 232 Interface X100 SIO331 9 pin DSUB male 27 4 3 2 RS 422 Interface X100 SIO331 9 pin DSUB male 29 4 3 3 RS 485 Interface X100 SIO331 9 pin DSUB male 30 4 3 4 TTY pass...

Страница 8: ... Examples for CAN Cables 41 5 6 1 Cable for Light Industrial Environment Applications Two Wire 41 5 6 2 Cable for Heavy Industrial Environment Applications Four Wire 41 6 CAN Troubleshooting Guide 42 6 1 Termination 42 6 2 Electrical Grounding 43 6 3 Short Circuit in CAN Wiring 43 6 4 CAN_H CAN_L Voltage 43 6 5 CAN Transceiver Resistance Test 44 6 6 Support by esd 44 7 Order Information 45 ...

Страница 9: ...60 byte output data or maximum 240 bytes can be used as output data with 60 bytes input data The module operates internally with a 68331 micro controller which buffers the CAN and Profibus DP data into the local SRAM The firmware and configuration data are kept in the Flash EEPROM Parameters are stored by means of a serial EEPROM The ISO 11898 compliant CAN interface allows a maximum data transfer...

Страница 10: ...ally with a 68331 micro controller which buffers the DN and Profibus DP data into the local SRAM The firmware and configuration data are kept in the Flash EEPROM Parameters are stored by means of a serial EEPROM The DeviceNet interface is designed according to the DeviceNet Specification Rev 2 0 All DeviceNet bit rates are supported The Profibus DP slave interface automatically recognizes all usua...

Страница 11: ... _ XYZ a XYZ bcd _ efgghijkllf mnioZpq rstuv iuwxst jyzuw s u efgghYZ XZ mnioZpq urstuv Xw x hnX e gg Y nu x u uz 1 3 Front View with Connectors and Coding Switches Figure 3 Position of connectors and control elements Figure 4 Internal module structure with PCB designations and connector names Figure without connector for supply voltage INFORMATION The LEDs are described in detail in the software ...

Страница 12: ...ale serial interface X100 CBMPB DSUB9 female Profibus DP interface X101 6 pin screw connector UEGM 24V voltage supply X400 Phoenix Contact connector 5 pin MSTB2 5 5 5 08 CAN or DeviceNet Temperature range 0 50 C ambient temperature Humidity max 90 non condensing Case dimensions W x H x D Width 40 mm height 85 mm depth 83 mm including hat rail mounting and jutted out connectors DSUB9 without CAN De...

Страница 13: ...x DeviceNet Connection 5 pin Phoenix Contact connector MSTB2 5 5 5 08 CAN controller SJA1000 according to ISO 11898 1 CAN 2 0A B Electrical insulation of CAN interface from other circuits via optocouplers and DC DC converters CAN CBM DP Physical Layer CAN CAN CBM DP Physical Layer according to ISO 11898 2 transmission rate programmable from 10 kbit s to 1 Mbit s Physical Layer DeviceNet DN CBM DP ...

Страница 14: ...B female DP controller Siemens Profibus Controller SPC3 DP Slave Electrical insulation of Profibus DP from other circuits via optocouplers and DC DC converters Physical Layer RS 485 Table 4 Data of Profibus DP interface 1 4 5 Serial Interface Controller 68331 Interface Standard RS 232 Options RS 422 RS 485 TTY active passive Connection 9 pin DSUB male Table 5 Data of serial interface ...

Страница 15: ...efore you start with the installation Ensure the absence of voltage before starting any electrical work NOTICE The CBM DP module shall not be connected to a DC power supply network without protection against surge voltage Use an external overvoltage protection 1 Mount and connect the CBM DP module and connect the interfaces Power supply CAN or DeviceNet PROFIBUS DP 11 2 Please note that the CAN bu...

Страница 16: ...µ Û 3 Circuit Description 3 1 CAN DeviceNet Circuit 3 1 1 Interface Circuit The CAN CBM DP module is equipped with an ISO 11898 compliant CAN interface the DN CBM DP with a DeviceNet interface The same connector in Combicon design is used for the two types the assignment of the connector however differs The following figures show both interfaces Figure 5 Circuit of CAN interface CAN CBM DP ...

Страница 17: ... ÜÝÝäåæ çèé êáëìíê âáãäåæ ÜÝÝÞß àá âáãÞß ÜÝÝäåæ çèé êáëìíê âáãäåæ îïð ñòó ôõòòö øù Üãã éú ûüâáã ìèýí ûú ìèýþ îïð ÿ ÿ õòòö ÿÿ âáã ÿ ÿ ñòò ÿ ÿ ñòò æä Ýëá Ýäßæ ä ÿ ÿ ñ òò ñ Ü ý ß Ýä ýÝ Ýë Ü ô ñ ò ãÝ ýê øù ÿ ñô ó ñ ñó ñ 0 1 1 2 3 ô ñ ñò4 ñò òò 5 4ÿ ò õ òò 4 6 7 7ò 8 8 Figure 6 Circuit of DeviceNet interface DN CBM DP ...

Страница 18: ...LM KLM NOOe Oje KLM NOOd biPN KLM KLM KLM k NOOl eQPN mOPU QUOQb NOOU OPPj NOOb OPPj mOPln QloZpqOde NOOP eQPN NOPr biPN NOOO Oje KLM Y NSYW TSYW sqT t_u NSYX TSYW sqT tnu NTv w x y z NTv mOPO oZpqXPbPP KLM NOeb u OPPN v mOPd oZpqQOOP mOPe oZpqQOOP CA A C A A A C A 3 2 Profibus DP Circuit The 100 resistor R126 is equipped from serial number IS Figure 7 Circuit of Profibus DP interface NOTICE The t...

Страница 19: ...gy backs are used The serial interface is controlled by the 68331 The bit rate of the interface can be set by parameters For each interface type RS 232 RS 422 RS 485 TTY a bit rate of up to 38 4 kbit s is supported The following bit rates can be set by means of the software The values in the second column show the actual bit rates which result from the controller internal conversion Bit rate set v...

Страница 20: ...ces is shown The figures are used to explain the terms for the signals used in the appendix In the appendix you can also find the circuit diagrams of the various available piggy backs The signal terms are exemplary for the connection of the CBM DP as transmitter terminal DTE 3 3 2 1 The RS 232 Interface The input signals CTS DSR and DCD are not evaluated by the CAN CBM DP and DN CBM DP Figure 8 Co...

Страница 21: ...ý þ âß þý Ü ÿþ ÿ þ 0 12 3456378609 8 0312 ABCD EFGHA IBD DJHKFGA L EMF I F NO DDF E G 3 3 2 2 The RS 422 Interface Figure 9 Connection diagram for RS 422 operation 3 3 2 3 The RS 485 Interface Figure 10 Connection diagram for RS 485 operation In order to activate the terminating resistor network on the piggy back you have to connect pins 9 and 2 and pins 4 and 7 in the DSUB9 connector for example ...

Страница 22: ...45 PQ RSTUVW RSTUVW RSTUVW PQ RSTUVW XYP XYZ YP YZ T Y ZQ ZQ Y _ XY XY abcdefg hi jk lmnolpqoir hqstacu iljk vwxyv zR yv Vz R V z w Z wv Q xw x w ª µ º º ÀÁ 3 3 2 4 The TTY 20 mA Interface Figure 11 Connection diagram for TTY operation passive Figure 12 Connection diagram for TTY operation active ...

Страница 23: ...ses can be set in the range decimally from 3 to 124 or hexadecimally from 0x03 to 0xC7 If an address smaller than 3 is set address 3 is valid If an address larger than 124 decimal or 0xC7 Hex is set address 124 is valid The upper coding switch SW211 is used to set the MSBs the lower coding switch SW210 is used to set the LSBs The CAN identifiers CAN CBM DP are set by means of a PROFIBUS DP configu...

Страница 24: ... with screw connections For conductor connection and conductor cross section see page 34 Pin Assignment of the Combicon socket of the module Pin Signal 5 n c 4 CAN_H 3 Shield 2 CAN_L 1 CAN_GND Signal Terms CAN_L CAN_H CAN signals CAN_GND reference potential of the CAN physical layers Shield connection of shield line Shield signal is not connected locally on the CAN CBM DP Pin assignment of an adap...

Страница 25: ...2 DN CBM DP DeviceNet X400 5 pin Combicon Style Pin Position Pin Assignment Pin Signal 1 V 2 CAN 3 Shield 4 CAN 5 V Signal terms V Voltage supply feed UVCC 24 V 4 V Reference potential to V and CAN CAN CAN CAN CAN signal lines Shield Connection of shield line Shield signal is not connected locally on the DN CBM DP ...

Страница 26: ...ent Signal Pin Signal n c 1 6 5 V output n c 2 7 n c RxD TxD I O 3 8 RxD TxD I O RTS output 4 9 n c GND 5 9 pin DSUB female Shield S Signal Terms RxD TxD Receive and transmission data RxD TxD RTS Control signal for repeater Request To Send 5 V Voltage supply for external terminating resistor networks max 50 mA GND Reference potential Shield Shielding connected with the case of the 9 pin DSUB femal...

Страница 27: ...nterface X100 SIO331 9 pin DSUB male Pin Position Pin Assignment Signal Pin Signal 1 DCD input DSR input 6 2 RxD input RTS output 7 3 TxD output CTS input 8 4 DTR output RIN input 9 5 GND 9 pin DSUB male The signal name is indicated looked by the CAN CBM module The input signals CTS DSR and DCD are not evaluated by the CAN CBM DP DN CBM DP ...

Страница 28: ...D 2 3 4 5 6 7 8 TxD 13 12 11 10 9 8 7 6 5 4 3 2 1 25 24 23 22 21 20 19 18 17 16 15 14 P1 DSUB female 25 pole 1 2 3 4 5 6 7 8 9 RxD TxD GND P2 CAN CBM DP DN CBM DP 5 4 3 2 1 9 8 7 6 RTS DTR RIN CTS P2 DSUB female 9 pole local signal names used at CBM module P1 PC 20 CTS DTR 4 3 1 1 Connection Lines for the RS 232 Interface to a PC The following two figures show the required assignment for RS 232 co...

Страница 29: ... CBM DP Hardware Manual Doc No C 2844 6 21 Rev 1 9 Page 29 of 45 4 3 2 RS 422 Interface X100 SIO331 9 pin DSUB male Pin Position Pin Assignment Signal Pin Signal 1 6 2 Tx output Tx output 7 3 8 4 Rx input Rx input 9 5 GND 9 pin DSUB male ...

Страница 30: ...n DSUB male Pin Position Pin Assignment Signal Pin Signal 1 6 2 Rx Tx Rx Tx 7 3 8 4 Term for Rx Tx 1 Term for Rx Tx 1 9 5 GND 9 pin DSUB male 1 The signals Term and Term are connected to a terminating resistor network on the PCB In order to activate the connection Term has to be connected to the Rx Tx signal and Term with the Rx Tx signal ...

Страница 31: ...45 4 3 4 TTY passive Interface X100 SIO331 9 pin DSUB male Pin Position Pin Assignment Signal Pin Signal 1 6 2 Tx transmitter Tx transmitter 7 3 I1 1 I2 1 8 4 Rx receiver Rx receiver 9 5 GND 9 pin DSUB male 1 Signals I2 and I1 are assigned but are not required for operating this physical interface ...

Страница 32: ... 3 5 TTY active Interface X100 SIO331 9 pin DSUB male Pin Position Pin Assignment Signal Pin Signal 1 6 2 Tx transmitter GNDA 1 7 3 Tx transmitter Rx receiver 8 4 GNDA 1 Rx receiver 9 5 GND 9 pin DSUB male 1 The GNDA signals have been assigned but are not required for operating this physical interface ...

Страница 33: ...onnected to a DC power supply network without protection against surge voltage ß Use an external overvoltage protection Voltage is supplied by means of the screw connector UEGM integrated in the case It can be connected to lines with a cross section of up to 2 5 mm Assignment of the screw connectors is the same on both sides of the case They can be used alternatively The middle contact is for 24 V...

Страница 34: ... mm Conductor cross section stranded min max 0 2 mm 2 5 mm Conductor cross section stranded with ferrule without plastic sleeve min max 0 25 mm 2 5 mm Conductor cross section stranded with ferrule with plastic sleeve min max 0 25 mm 2 5 mm Conductor cross section AWG kcmil min max 24 12 2 conductors with same cross section solid min max 0 2 mm 1 mm 2 conductors with same cross section stranded min...

Страница 35: ...However for CAN network design margin must be given for signal loss across the complete system and cabling parasitic loadings network imbalances ground offsets against earth potential and signal integrity Therefore the practical maximum number of nodes bus length and stub length are typically much lower esd has concentrated her recommendations concerning CAN wiring on the specifications of the ISO...

Страница 36: ... about 120 k 10 with an adequate conductor cross section l 0 22 mm has to be used The voltage drop over the wire has to be considered 2 For light industrial environment use at least a two wire CAN cable Connect m the two twisted wires to the data signals CAN_H CAN_L and m the cable shield to the reference potential CAN_GND 3 The reference potential CAN_GND has to be connected to the functional ear...

Страница 37: ...311 03 n If a mixed application of single twisted and double twisted cables is unavoidable take care that the CAN_GND line is not interrupted n Deviations from the bus structure can be realized by the usage of repeaters 5 2 4 Termination n A termination resistor has to be connected at both ends of the CAN bus If an integrated CAN termination resistor which is equipped at the CAN interface at the e...

Страница 38: ...on ÿ 0 22 mm has to be used The voltage drop over the wire has to be considered 2 For heavy industrial environment use a four wire CAN cable Connect two twisted wires to the data signals CAN_H CAN_L and the other two twisted wires to the reference potential CAN_GND and the cable shield to functional earth FE at least at one point 3 The reference potential CAN_GND has to be connected to the functio...

Страница 39: ...d potentials as described in the manual of the CAN T Connector For further information on this read the CAN T Connector Manual order no C 1311 21 Alternatively a T connector can be used in which the shield potential is looped through e g the DSUB9 connector from ERNI ERBIC CAN BUS MAX order no 154039 s If a mixed application of single twisted and double twisted cables is unavoidable take care that...

Страница 40: ...ommendations of the CiA like standard values of the cross section depending on the cable length are described in the CiA recommendation CiA 303 1 see CiA 303 CANopen Recommendation Part 1 Cabling and connector pin assignment Version 1 8 0 Table 2 Bit Rate kBit s Theoretical values of reachable wire length with esd interface lmax m CiA recommendations 07 95 for reachable wire lengths lmin m Standar...

Страница 41: ...70272 ConCab GmbH Äußerer Eichwald 74535 Mainhardt Germany www concab de e g BUS PVC C 1x 2x 0 22 mm Part No 93 022 016 UL appr BUS Schleppflex PUR C 1x 2x 0 25 mm Part No 94 025 016 UL appr 5 6 2 Cable for Heavy Industrial Environment Applications Four Wire Manufacturer Cable Type U I LAPP GmbH Schulze Delitzsch Straße 25 70565 Stuttgart Germany www lappkabel de e g UNITRONIC BUS CAN UL CSA 2x 2x...

Страница 42: ...ission line and load impedance are equal these reflections are avoided 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 one end of the network see figure above The measured value should be between 50 u and 70...

Страница 43: ...AN_GND wires 6 3 Short Circuit in CAN Wiring A CAN bus might possibly still be able to transmit data if there is a short circuit between CAN_GND and CAN_L but generally the error rate will increase strongly Make sure that there is no short circuit between CAN_GND and CAN_L 6 4 CAN_H CAN_L Voltage Each node contains a CAN transceiver that outputs differential signals When the network communication ...

Страница 44: ...t leakage through the CAN circuits please use a resistance measuring device and 1 Switch off the node 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 The measured resistance has to be about 500 k for each signal If it is much lower the CAN transceiver is...

Страница 45: ...er RS 485 adapter TTY 20mA passive TTY 20mA active V 1930 02 V 1930 04 V 1930 06 V 1930 08 Table 8 Order information PDF Manuals Manuals are available in English For availability of English manuals see the following table Please download the manuals as PDF documents from our esd website www esd eu for free Manuals Order No CAN CBM DP ME English manual for C 2844 03 05 incl configuration software i...

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