PCAN-LWL - User Manual
Contents
1. 102 Power supply with AC adaptor or via CAN bus 1 3 Scope of Supply 2 CAN to optical waveguide converters including power supply units A choice of 5 or 10 m FO cable 62 5 125 um duplex line ST connector other lengths available on request Manual in PDF format PCAN LWL User Manual a System 2 connections 2 1 CAN Toggle D Sub Switch Connector Figure 1 Side of the case with toggle switch and CAN connector A CAN bus High speed CAN as well as Low speed CAN is used to the 9 pin D Sub connector on the left side of the case The pin assignment for CAN corresponds to the specification CiA 102 n c not connected Figure 2 Pin assignment CAN connector Pin 9 can be used to power the PCAN LWL In section 3 2 Se ecting the Power Supply on page 11 you can find detailed information about the supply of the PCAN LWL PCAN LWL User Manual m System 2 2 OWG LWL Voltage OUT Socket Figure 3 Side of the case with OWG connectors voltage socket and LEDs A PCAN LWL module has two standardized ST connectors for the OWG connectors The connectors are each responsible for trans mission and reception of light signals Both OWGs of the duplex line are marked with colors at each connector red black where a color is assigned to one OWG each Connect each OWG output of one module with the OWG input of the other Optical wave guide Connect at Connect at marker 1 PCAN LWL module 2 PCA2. terminated with 100 Q parallel connection of all termina tion resistors A single node should be terminated with 500 up to 6 kQ To simplify the adaptation of the PCAN LWL to existing CAN busses you can switch between the termination resistors 510 Q Position of toggle switch up and 5 6 kQ Position of toggle switch down 12 PCAN LWL User Manual m System 1 5 O 000060 O 09 09 O PU t Toggle Switch Figure 7 Toggle switch on the side of the case with D Sub connector For smaller CAN busses or for testing a single component the tog gle switch should be set to 510 Q For monitoring or configuration of existing CAN busses that are already optimized regarding termi nation the toggle switch should be set to 5 6 kQ to minimize an influence on the total termination Oo Note When the High speed CAN transceiver is activated the toggle switch for the Low speed CAN termination resistor doesn t have any influence 13 PCAN LWL User Manual m System 4 Operation 4 1 CAN Bit Rate When operating the PCAN LWL modules it must be ensured that the bit rate is identical on the connected CAN busses No conversion or automatic adaptation of the bite rate is done in the PCAN LWL modules 4 2 Signal Delay Through the implementation of electric signals to light signals in the two PCAN LWL modules a signal delay of approx 250 ns for the OWG set 2x PCAN LWL 5 m OWG arises in High speed
3. 30V max 50 mA at 9 V 0 70 C 32 158 F 40 100 C 40 212 F 15 90 not condensing EN 55024 2003 10 EN 55022 2008 05 EC directive 2004 108 EG IP20 60 x 35 x 80 mm BxHxT See also dimension drawings Appendix B on page 19 1389 17 PCAN LWL User Manual m System Appendix A CE Certificate PCAN LWL IPEH 002026 EC Declaration of Conformity PEAK System Technik GmbH Notes on the CE Symbol The following applies to the PCAN LWL products IPEH 002026 EC Directive This product fulfills the requirements of EC directive 2004 108 EG on Electromagnetic Compatibility and is designed for the following fields of application as per the CE marking Electromagnetic Immunity DIN EN 55024 Publication date 2003 10 Information technology equipment immunity characteristics Limits and methods of measurement IEC CISPR 24 1997 modified A1 2001 A2 2003 German version EN 55024 1998 A1 2001 A2 2003 Electromagnetic Emission DIN EN 55022 Publication date 2008 05 Information technology equipment Radio disturbance characteristics Limits and methods of measurement IEC CISPR 22 2005 modified A1 2005 German version EN 55022 2006 A1 2007 Declarations of In accordance with the above mentioned EU directives Conformity the EC declarations of conformity and the associated documentation are held at the disposal of the competent authorities at the address below P
4. CAN operation This corresponds to a cable length of 50 m In Low speed CAN operation the two PCAN LWL modules have a signal delay of approx 1 5 us This corresponds to a cable length of 300 m There fore you should consider the dependence of the maximum length of a CAN bus on the bit rate The following tables show the maxi mum possible CAN bus length at different bit rates Since the travel time of light signals in OWGs approximately equals the travel time of electric signals in copper about 5 ns m the length of the duplex OWG is be taken into account 1 1 for the length of the CAN bus 14 PCAN LWL User Manual m System Bit rate Max Bus length Max Bus length with OWG set High speed CAN without PCAN LWL 2x PCAN LWL 5 m OWG 500 kbit s 110 m 60 m 250 kbit s 240 m 190 m 125 kbit s 500 m 450 m 50 kbit s 1 3 km 20 kbit s 3 3 km For small bit rates the delay of the 10 kbit s 6 6 km PCAN LWL module can be neglected 5 kbit s 13 0 km Bit rate Max Bus length Max Bus length with OWG set Low speed CAN without PCAN LWL 2x PCAN LWL 5 m OWG 125 kbit s 500 m 200 m 50 kbit s 1 3 km 1 km 20 kbit s 3 3 km 3 km 10 kbit s 6 6 km For small bit rates the delay of the 5 kbit s 13 0 km PCAN LWL module can be neglected The listed values have been calculated on the basis of an idealized system and can differ from reality 15 PCAN LWL User Manual System 4 3 Status LED LED Meaning Yellow on High speed CAN co
5. EAK System Technik GmbH Mr Wilhelm Otto Roehm Strasse 69 64293 Darmstadt Germany Phone 49 0 6151 8173 20 Fax 49 0 6151 8173 29 E mail info peak system com be E Signed this 4 day of October 2011 18 PCAN LWL User Manual System Appendix B Dimension Drawing 93 0 mm 80 0 mm 60 5 mm 57 0 mm 35 0 mm 32 0 mm This figure doesn t show the actual size of the product 19 PCAN LWL User Manual a System Appendix C Quick Reference Basic Settings on PCAN LWL Circuit Board Jumper block JPB1 B A C B Termination CAN mode High speed CAN Low speed CAN Choice of transceiver Meaning High speed CAN Default setting at delivery Low speed CAN Terminating resistor 120 Q between CAN Land CAN H ON S or DI ore D 510 Q 5 6 kQ switchable toggle switch at the case Status LED LED Meaning Yellow on High speed CAN connection Orange on Low speed CAN connection Red on Error Error condition on the Low speed CAN Connectors Voltage input socket CAN Vin amp SND GND lt OWG LWLIN LWL OUT a Vin optional lt gt n c not connected 20
6. N LWL module Red LWL IN LWL OUT Black LWL OUT LWL IN PCAN LWL User Manual System 2 3 Power supply A PCAN LWL module needs a DC voltage of 6 5 to 30 V On the voltage input socket you can connect the supplied AC adapter Vin GND Figure 4 Assignment voltage input socket In section 3 2 Se ecting the Power Supply on page 11 you can find detailed information about the supply of the PCAN LWL PCAN LWL User Manual System 3 Configuration At the PCAN LWL housing the termination for a Low speed CAN bus can be adjusted by a toggle switch and the termination for a High speed CAN bus can be adjusted by a rotary switch On the circuit board of a PCAN LWL you can do the following settings affecting the basic operation Choice between High speed and Low speed CAN transceiver Choice of the input for the power supply ron Tip At shipment PCAN LWL is pre configured for use in a High 2 speed CAN bus and for the power supply via the separate voltage input socket If you use this common configuration a change of the basic settings as described in this chapter is not needed For the jumper settings on the circuit board this must be removed from the case To do this proceed as follows 1 Remove the two screws from the left side of the case side with the D Sub connector 2 Pull the circuit board with the lid out of the case After changing the settings see the following subsections the asse
7. Optical Coupler for CAN Data Transmission User Manual v2 0 0 I od a System PCAN LWL User Manual m System Products taken into account Product Name Model Part number PCAN LWL IPEH 002026 CANopen and CiA are registered community trade marks of CAN in Automation e V All other product names mentioned in this document may be the trademarks or registered trademarks of their respective companies They are not explicitly marked by uTM or D 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 2 0 0 2011 11 18 PCAN LWL User Manual a System Contents 1 Introduction 4 1 1 Properties at a Glance 4 1 2 System Requirements 5 1 3 Scope of Supply 5 2 Connections 6 2 1 CAN 6 2 2 OWG 2 3 Power supply 8 3 Configuration 9 3 1 Selecting High speed or Low speed CAN transceiver 10 3 2 Selecting the Power Supply Input 11 3 3 CAN Termination 12 3 3 1 Termination at High speed CAN Bus 12 3 3 2 Termination at Low speed CAN Bus 12 4 Operation 14 4 1 CAN Bit Rate 14 4 2 Signal Delay 14 4 3 Status LED 16 4 3 1 Red LED Low speed Error 16 5 Technical Specification 17 Appendix A CE Certificate 18 Appendix B Dimension Drawing 19 Appendix C Quick Reference 20 PCAN LWL User Manual a System 1 Introduction y Tip At the e
8. mbly is done in the reversed order PCAN LWL User Manual m System 3 1 Selecting High speed or Low speed CAN transceiver The PCAN LWL system can be integrated in a High speed CAN bus as well as in a Low speed CAN bus The corresponding CAN transceiver or mode must be selected by a jumper block on the respective circuit board of the PCAN LWL JPS JP10 Figure 5 Position jumper block JPB1 Jumper block JPB1 Choice of transceiver Meaning B A High speed CAN Default setting at delivery C B Low speed CAN When setting the jumper block make sure that the turn switch always is located on the side of the labels for the pin rows C BA While PCAN LWL is operating the set CAN mode is indicated by the corresponding LED at the case Oo Note It is also possible to use different transceivers with the two connected PCAN LWL modules conversion High speed CAN Low speed CAN You should make sure like in any other case that the transfer rates are the same in both CAN busses 10 PCAN LWL User Manual m System 3 2 Selecting the Power Supply Input A PCAN LWL module can be powered by an external voltage source e g with the supplied AC adapter via the corresponding input socket or via pin 9 of the CAN connector in each case 6 5 30 V DC The power supply input to be used must be set with the jumper JP12 on the circuit board of the PCAN LWL module JP9 JP10 Figure 6 Position jumper JP12 Jumper JP12 Power
9. nd of this manual Appendix C you can find a 2 Quick Reference with brief information about the installation and operation of the PCAN LWL For use in explosion proof areas or for EMC measurements the PCAN LWL can be used to replace a stretch of CAN network with a fibre optic line at any point There are the options of conversion to High speed CAN or Low speed CAN The modules are supplied with power externally 1 1 Properties at a Glance LED display for transceiver status High speed CAN AMIS 30660 transceiver max 500 kbit s switchable 120 Ohm bus termination Low speed CAN TJA1054 transceiver max 125 kbit s switchable 510 Ohm 5 6 kOhm bus termination bus error display Fibre optic duplex line 62 5 125 um ST connectors Aluminum casing CAN bus connection via D Sub 9 pin in accordance with CiA 102 Supply voltage range from 6 5 to 30 V Supply via D Sub 9 pin or DC connector Operating temperature range from 0 to 70 C 32 to 158 F PCAN LWL User Manual a System Oo Note You can find additional information about the properties and the behavior of the LS CAN transceiver TJA1054 in the corresponding data sheet which you can download e g from the NXP website www nxp com 1 2 System Requirements High speed CAN bus ISO 11898 2 max 500 kbit s or Low speed CAN bus ISO 11898 3 max 125 kbit s 9 pin D Sub socket for connection to the PCAN LWL modules pin assignment according to specification CiA
10. nnection Orange on Low speed CAN connection Red on Error Error condition on the Low speed CAN 4 3 1 Red LED Low speed Error The red LED indicates the state of the error output of the Low speed CAN transceiver This output is active at following errors Interrupt on CAN H Interrupt on CAN L Short circuit between CAN H and GND Short circuit between CAN H and VCC Short circuit between CAN_L and GND Short circuit between CAN_L and VCC Short circuit between CAN_H and CAN_L Please see the data sheet for the CAN transceiver TJA1054 for more details Oo Note The red LED does not have any function at operation of PCAN LWL in High speed CAN mode 16 PCAN LWL User Manual a System 5 Technical Specification CAN High speed CAN Low speed CAN Signal delay through 2x PCAN LWL 5 m OWG Optical wave guide Power supply Supply voltage Power consumption Enviroment Operating temperature Temperature for storage and transport Relative humidity EMC Ingress protection DIN EN 60529 Measures Size Weight D Sub plug 9 pins in accordance with CiA 102 Transceiver AMIS 30660 Bit rate max 500 kbit s Bus termination switchable 120 Q D Sub plug 9 pins in accordance with CiA 102 Transceiver TJA1054 Bit rate max 125 kbit s Bus termination switchable 510 Q 5 6 kQ High speed CAN approx 250 ns Low speed CAN approx 1 5 us Optical fibre duplex line with ST connector 6 5
11. supply via Meaning 1 2 A CAN connector pin 9 At increased EMC requirements H use a shielded cable for the supply and for CAN 2 3 Input socket for power supply Default setting at delivery Prefer this Input for EMC applications additional integrated filter The unused power supply input according to the setting is electrically isolated from the actual used power supply A Attention Switch the power supply at the CAN bus off before connecting or removing the CAN plug at the PCAN LWL module Otherwise electronic parts may be destroyed even on other nodes attached to the CAN bus 11 PCAN LWL User Manual System 3 3 CAN Termination A High speed CAN bus ISO 11898 2 must be terminated on both ends with 120 Ohms Otherwise there are interfering signal reflections and the transceivers of the connected CAN nodes CAN interface control device will not work 3 3 1 Termination at High speed CAN Bus The High speed CAN bus is terminated inside the PCAN LWL module between CAN Land CAN H with 120 Q This termination can be switched on or off by using the turn switch that is accessible via the hole on the top side of the case To do so use a small flat tip screwdriver The positions of the switch are defined as follows ON S or D OFF D 32502 Termination at Low speed CAN Bus Every node in a Low speed CAN bus ISO 11898 3 has a termina tion resistor For optimum system conditions the whole CAN bus should be
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