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PCAN-Repeater – User Manual

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Figure 8: Implementation of a stub line

CAN 1

Status

CAN 2

Status

Termination

On

, at a not

terminated CAN bus

Off

, at a completely

terminated CAN bus

Termination

Off

, a termination

may only be done
on the cable ends of
a CAN bus

Listen-only
mode

Optional On or Off

Listen-only
mode

Optional On or Off

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Summary of Contents for IPEH-004038

Page 1: ...2 Channel CAN Repeater with galvanic isolation User Manual PCAN Repeater V1 0 3 ...

Page 2: ...in this document may be the trademarks or registered trademarks of their respective companies They are not explicitly marked by and 2011 PEAK System Technik GmbH PEAK System Technik GmbH Otto Roehm Straße 69 64293 Darmstadt Germany Phone 49 0 6151 8173 20 Fax 49 0 6151 8173 29 www peak system com info peak system com Document version 1 0 3 2011 10 10 ...

Page 3: ...peration with Bus Load and Error Display 8 3 1 1 Signal Delay 8 3 1 2 Busload and Error Display 9 3 2 Status LEDs 10 3 3 CAN Termination 10 3 4 Listen only Mode 12 3 5 Application Examples 14 3 5 1 Decoupling of two Bus Segments 14 3 5 2 Implementation of a Stub Line 15 3 5 3 Use as a Passive Observer 17 4 Technical Specifications PCAN Repeater 18 Appendix A CE Certificate 20 Appendix B Dimension ...

Page 4: ...98 2 Galvanic isolation up to 5 kV according to IEC60601 1 between the CAN channels and between CAN and power supply Bit rates up to 1 Mbit s CAN bus load and CAN error indication with LEDs for standard bit rates from 20 kbit s up to 1 Mbit s Termination for each CAN channel can be activated separately Listen only mode optionally switchable for CAN channel 1 or CAN channel 2 Plastic casing width 2...

Page 5: ...PCAN Repeater User Manual 5 1 3 Scope of Supply PCAN Repeater in a top hat rail casing 3 mating connectors for power supply and CAN connectors Manual in PDF format ...

Page 6: ...CAN2 The CAN connectors are located on the upper side of the casing Figure 1 Pin assignment CAN Pin Meaning 1 CAN High 2 CAN Low 3 CAN GND 4 CAN Shield1 Figure 2 Mating connector CAN 1 Capacitive connection 5 kV to supply shield top hat rail potential ...

Page 7: ...wer Supply The connection for the power supply is located on the lower side of the casing Figure 3 Pin assignment Power Pin Meaning 1 GND 2 not connected 3 Vbat 8 30 V DC 4 Shield top hat rail potential Figure 4 Mating connection Power ...

Page 8: ...e corresponding CAN network Note that the two CAN busses must have the same bit rates 3 Connect the PCAN Repeater to a suitable power supply 8 30 V DC 4 The PCAN Repeater now forwards the CAN messages 1 to 1 3 1 1 Signal Delay The PCAN Repeater has a transit time delay of 115 ns This corresponds to a cable length of 23 m Therefore you should consider the dependence of the maximum length of a CAN b...

Page 9: ...or Display For the bus load and error display the use of standard bit rates is provided As soon as the adapter is successfully put into operation in a network the adapter runs automatic bit rate detection As long as no bit rate is detected and for the duration of the detection the traffic LED is on colored orange After a successful detection the bus load and errors are displayed with the traffic a...

Page 10: ...king 2 Hz Bus load 50 79 Traffic Orange quick blinking 4 Hz Bus load 80 100 Lower LED Status Meaning Power Green on Power supply is on Note The display of the error and traffic LEDs refers always to the CAN bus that is connected to CAN channel 1 only relevant for the listen only mode 3 3 CAN Termination The termination for each CAN channel can be separately activated by a switch on the board At de...

Page 11: ...to switch the termination on or off Important note Before opening the adapter unplug the power supply In order to access the board open the casing of the PCAN Repeater by pushing the latch at the top behind the CAN connectors and at the bottom behind the power connector slightly in e g with a flat tip screwdriver Now you can pull out the front part of the casing with the board Figure 5 shows the p...

Page 12: ...AN channel 1 or the CAN channel 2 If the listen only mode for CAN channel 1 is activated the participants on this bus can receive the messages from CAN channel 2 but no data and also no Acknowledge is transferred from CAN channel 1 to CAN channel 2 At delivery of the PCAN Repeater the listen only mode is switched off Note The listen only mode should be enabled only for one CAN channel If both CAN ...

Page 13: ...nd the CAN connectors and at the bottom behind the power connector slightly in e g with a flat tip screwdriver Now you can pull out the front part of the casing with the board Figure 6 shows the positions of the respective switches of the PCAN Repeater on the board Figure 6 Listen only mode per CAN channel To turn on the listen only mode for the CAN channels switch S4 to Listen only for each CAN c...

Page 14: ...on on the repeater If a CAN bus is not completely terminated activate the internal termination for the appropriate channel Note that a CAN bus always must be terminated with 120 Ohms at both ends With the switchable listen only mode the direction of message forwarding can be set up as required With a suitable bit rate see chapter 3 1 2 the bus load and errors will be displayed with the traffic and...

Page 15: ...r more segments of a CAN network With a tap on a CAN bus a long stub line can be implemented with several participants If the CAN bus B is not completely terminated activate the internal termination for CAN channel 1 Note that a CAN bus always must be terminated with 120 Ohms at both ends As this tap on the CAN bus A is not a cable end deactivate the termination on CAN channel 2 With the switchabl...

Page 16: ... line CAN 1 Status CAN 2 Status Termination On at a not terminated CAN bus Off at a completely terminated CAN bus Termination Off a termination may only be done on the cable ends of a CAN bus Listen only mode Optional On or Off Listen only mode Optional On or Off ...

Page 17: ...he PCAN Repeater Use the CAN channel 1 Note that the termination of the open CAN channel CAN 2 is activated Figure 9 Use as a passive Observer CAN 1 Status CAN 2 Status Termination On at a not terminated CAN bus Off at a completely terminated CAN bus Termination On Listen only mode Off Listen only mode Off ...

Page 18: ...P PCA82C251 Galvanic isolation Up to 5 kV between the CAN channels and between CAN and power supply Termination 120 Ohm switchable for each CAN channel at delivery activated Listen only mode Switchable for CAN channel 1 or 2 Transmit time delay 115 ns equals 23 m cable length Power supply Supply voltage 8 30 V DC Power consumption 70 mA at 9 V 30 mA at 24 V Measures Size 22 5 x 99 x 114 5 mm W x H...

Page 19: ...85 F Temperature for storage and transport 40 100 C 40 212 F Relative humidity 15 90 not condensing EMC EN 61326 1 2006 10 EC directive 2004 108 EG Extended interference resistance IEC61000 4 6 10 V eff IEC61000 4 3 20 V m Security IEC 60601 1 Ingress protection IEC 60529 IP20 ...

Page 20: ...PCAN Repeater User Manual 20 Appendix A CE Certificate ...

Page 21: ...PCAN Repeater User Manual 21 Appendix B Dimension Drawing The figure doesn t show the actual size of the product ...

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