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CAN-Repeater

Passive I- and Y-Repeater for CAN

(CAN-Repeater-I-Opto)

Hardware Manual

to Product C.1330.02, C.1330.03,

C.1330.06, C.1330.07

CAN-Repeater

Hardware Manual • Doc. No.: C.1330.21 / Rev. 1.4

Page 1 of 28

                                          esd electronic system design 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

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Summary of Contents for C.1330.02

Page 1: ...ware Manual to Product C 1330 02 C 1330 03 C 1330 06 C 1330 07 CAN Repeater Hardware Manual Doc No C 1330 21 Rev 1 4 Page 1 of 28 esd electronic system design 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 ...

Page 2: ...uction of this document in any form whole or in part are subject to esd s written approval 2016 esd electronic system design gmbh Hannover esd electronic system design 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 CAN...

Page 3: ...ges versus previous version Date 1 4 Safety Information inserted 2016 04 28 2 LED colours corrected note inserted 2 1 2 2 Description of LEDs revised 3 New chapter Hardware Installation 4 Notes inserted 5 Chapter Connector Assignments revised 6 5 Chapter revised standard values of the cross section inserted in the table 8 Declaration of Conformity new 9 Order Information chapter revised and moved ...

Page 4: ...ements 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 situation that if not avoided could result in minor or moderate injury NOTICE Notice statements are used to notify people on hazards tha...

Page 5: ...l use Always allow adequate ventilation around the CAN Repeater and use care when handling Do not operate the CAN Repeater adjacent to heat sources and do not expose it to unnecessary thermal radiation Ensure an ambient temperature as specified in the technical data DANGER Hazardous Voltage Risk of electric shock due to unintentional contact with uninsulated live parts with high voltages inside of...

Page 6: ...ve materials is not permitted The operation of the CAN Repeater for medical purposes is prohibited Service Note The CAN Repeater does not contain any parts that require maintenance by the user The CAN Repeater does not require any manual configuration of the hardware Unauthorized intervention in the device voids warranty claims Disposal Devices which have become defective in the long run have to b...

Page 7: ...s concerning CAN Wiring 17 6 2 Light Industrial Environment Single Twisted Pair Cable 18 6 2 1 General Rules 18 6 2 2 Cabling 19 6 2 3 Termination 19 6 3 Heavy Industrial Environment Double Twisted Pair Cable 20 6 3 1 General Rules 20 6 3 2 Device Cabling 21 6 3 3 Termination 21 6 4 Electrical Grounding 22 6 5 Bus Length 22 6 6 Examples for CAN Cables 23 6 6 1 Cable for light industrial Environmen...

Page 8: ... therefore the maximum bit rate of the complex CAN network is determined by the sum of the maximum lengths of subnetworks and the reduction of the total line length by inserting the repeater Only one CAN Repeater should be used per network The CAN Repeater is supplied by an external voltage in the range of 8 V 30 V The integrated quick logic guarantees a total transparency and the perfect arbitrat...

Page 9: ... view I and Y Repeaters See also chapter Connector Assignments from page 14 for signal assignment of the connectors NOTICE Read chapter Hardware Installation on page 11 before you start with the installation of the hardware CAN Repeater Hardware Manual Doc No C 1330 21 Rev 1 4 Page 9 of 28 ...

Page 10: ... off no supply voltage LED240A on supply voltage of all local units except CAN1 is on Status CAN 5V green Power LED of electrically isolated CAN 1 off no supply voltage on CAN1 LED240B on supply voltage of electrically isolated CAN 1 interface is on Table 1 Description of LEDs Status 5V and Status CAN 5V 2 2 Indication of RX Signal Channel LEDs LED Colour LED Indication when LED is on LED name in ...

Page 11: ...d to the device have to be sufficiently protected against hazardous voltage SELV according to EN 60950 1 before you start with the installation Ensure the absence of voltage before starting any electrical work 1 Mount the CAN Repeater module and connect the interfaces power supply voltage CAN 2 Please note that the CAN bus has to be terminated at both ends esd offers special T connectors Additiona...

Page 12: ... to the CAN Repeater have to be sufficiently protected against hazardous voltage SELV according to EN 60950 1 before you start with the installation Connectors P1B CAN network 2 DSUB9 male P2 CAN network 3 DSUB9 male P3 CAN network 1 DSUB9 male electrically isolated in opto design P4A P4B 24V power supply 2x 3 pin connector UEGM Temperature range 0 50 C ambient temperature Humidity max 90 non cond...

Page 13: ...to 24 V power supply Arbiter PLD Physical Layer High speed CAN interface according to ISO 11898 2 without further capacitive circuitry bit rate up to 1 Mbit s Reduction of attainable total line length by inserting the CAN Repeater approx 14 m CAN termination integrated in repeater 120 Ω each Table 4 Data of the CAN interface CAN Repeater Hardware Manual Doc No C 1330 21 Rev 1 4 Page 13 of 28 ...

Page 14: ...02 C 1330 03 the assignment of interface CAN 1 is described in the following chapter see page 15 Device connector DSUB9 male Pin Position Pin Assignment Signal Pin Signal 1 CAN1_GND 6 2 CAN1_L CAN1_H 7 3 CAN1_GND 8 4 9 5 9 pin DSUB connector threaded bolt with internal thread UNC 4 40 Signal Description CAN1_H CAN1_L data lines of electrically isolated CAN network 1 CAN1_GND reference potential of...

Page 15: ...pto design P3 CAN Repeater I C 1330 02 CAN Repeater Y C 1330 03 CAN 2 P1B All CAN Repeater versions CAN 3 P2 CAN Repeater Y C 1330 03 CAN Repeater Y Opto C 1330 07 Device connector 9 pin DSUB connector male Pin Position Pin Assignment Signal Pin Signal 1 GND x 6 2 CANx_L CANx_H 7 3 GND x 8 4 9 5 9 pin DSUB connector threaded bolt with internal thread UNC 4 40 Signal description CANx_H CANx_L data ...

Page 16: ...means of UEGM connectors integrated in the housing The connectors are suitable for lines with a cross section of up to 2 5 mm The connectors have been assigned in the same way on both sides of the housing They can be used alternatively The middle contact has been designed for 24 V and the two outer contacts for GND NOTICE It is not permissible to feed through the supply voltage i e to use one side...

Page 17: ...en 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 11898 2 Thus this wiring hints forgoes to descri...

Page 18: ... to the functional earth FE at exactly one point 4 A CAN net must not branch exception short cable stubs and has to be terminated with the characteristic impedance of the line generally 120 Ω 10 at both ends between the signals CAN_L and CAN_H and not at CAN_GND 5 Keep cable stubs as short as possible l 0 3 m 6 Select a working combination of bit rate and cable length 7 Keep away cables from distu...

Page 19: ...e contacts gender changer are available from esd order no C 1303 01 DSUB termination connectors with male contacts order no C 1302 01 or female contacts order no C 1301 01 and additional functional earth contact are available if CAN termination and grounding of CAN_GND is required CAN Repeater Hardware Manual Doc No C 1330 21 Rev 1 4 Page 19 of 28 CAN_L CAN_GND CAN_H FE CAN DP 2 CAN CBX DIO8 CAN C...

Page 20: ...ith the characteristic impedance of the line generally 120 Ω 10 at both ends between the signals CAN_L and CAN_H and not to CAN_GND 5 Keep cable stubs as short as possible l 0 3 m 6 Select a working combination of bit rate and cable length 7 Keep away CAN cables from disturbing sources If this can not be avoided double shielded cables are recommended Figure 6 CAN wiring for heavy industrial enviro...

Page 21: ...isted cables is unavoidable take care that the CAN_GND line is not interrupted Figure 7 Example of proper wiring with single shielded double twisted pair cables 6 3 3 Termination 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 end of the bus is connected this one has to be used for termin...

Page 22: ...s 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 Standard values of...

Page 23: ...any www concab de e g BUS PVC C 1x 2x 0 22 mm Order No 93 022 016 UL appr BUS Schleppflex PUR C 1x 2x 0 25 mm Order No 94 025 016 UL appr 6 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 com e g UNITRONIC BUS CAN UL CSA 2x 2x 0 22 UL CSA approved Part No 2170261 UNITRONIC BUS ...

Page 24: ... 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 Ω and 70 Ω 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...

Page 25: ...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 7 4 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 V measured to CAN_GND Faulty transcei...

Page 26: ... 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 kΩ for each signal If it is much lower the CAN transceiver it is probably faulty Another indication for a faulty transceiver is a very high deviation between the two measured input resistances 200 Figure 10 ...

Page 27: ...Declaration of Conformity 8 Declaration of Conformity CAN Repeater Hardware Manual Doc No C 1330 21 Rev 1 4 Page 27 of 28 ...

Page 28: ... Y Opto CAN Repeater Y Opto with 3 CAN interfaces DSUB 9 DIN rail housing physical layer according to ISO11898 termination resistors 120 Ohm power supply 8 24 VDC one CAN interface electrically isolated C 1330 07 Table 6 Order information PDF Manuals Manuals are available in English and usually in German as well For availability of English manuals see table below Please download the manuals as PDF...

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