Table of contents
Safety Instructions...........................................................................................................................5
1. Overview...................................................................................................................................... 8
2. Case View with LED and Connector Description..........................................................................9
2.1 LED-Displays.......................................................................................................................10
3. Hardware Installation .................................................................................................................11
4. Technical Data...........................................................................................................................12
4.1 General Technical Data.......................................................................................................12
4.2 USB Interface and Microcontroller.......................................................................................12
4.3 CAN Interface......................................................................................................................13
4.4 Software Support.................................................................................................................13
5. Connector Assignments.............................................................................................................14
5.1 CAN Interface at DSUB9 Connector....................................................................................14
5.2 USB Socket.........................................................................................................................15
6. Correctly Wiring Electrically Isolated CAN Networks..................................................................16
6.1 Standards concerning CAN Wiring......................................................................................16
6.2 Light Industrial Environment (Single Twisted Pair Cable).....................................................17
6.2.1 General Rules.............................................................................................................17
6.2.2 Cabling........................................................................................................................18
6.2.3 Branching....................................................................................................................18
6.2.4 Termination.................................................................................................................18
6.3 Heavy Industrial Environment (Double Twisted Pair Cable).................................................19
6.3.1 General Rules.............................................................................................................19
6.3.2 Device Cabling............................................................................................................20
6.3.3 Branching....................................................................................................................20
6.3.4 Termination.................................................................................................................20
6.4 Electrical Grounding.............................................................................................................21
6.5 Bus Length...........................................................................................................................21
6.6 Examples for CAN Cables...................................................................................................22
6.6.1 Cable for light industrial Environment Applications (Two-Wire)...................................22
6.6.2 Cable for heavy industrial Environment Applications (Four-Wire)................................22
7. CAN Troubleshooting Guide.......................................................................................................23
7.1 Termination.......................................................................................................................... 23
7.2 Electrical Grounding.............................................................................................................24
7.3 Short Circuit in CAN Wiring..................................................................................................24
7.4 CAN_H/CAN_L-Voltage ......................................................................................................24
7.5 CAN Transceiver Resistance Test.......................................................................................25
7.6 Support by esd.....................................................................................................................25
8. License....................................................................................................................................... 26
9. Declaration of Conformity...........................................................................................................27
10. Order Information.....................................................................................................................28
Page 6 of 28
Hardware Manual • Doc. No.: C.2066.21 / Rev. 1.6
CAN-USB/2
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