Output Wiring – CAN Bus Interface

The product must be connected to a CAN bus as follows:

 

 

First device

Second-to-last device

 

 

Second device

Last device

 

Information on protocols

Please contact your MOTORTECH contact person if you require more information on the CANopen® and J1939 protocols.

   

CAN bus wiring

Note the following when connecting the CAN bus:

  • Each bus end must be fitted with a terminating resistor of 120 Ω (see drawing).
  • The maximum wire length depends on the bit rate:

Bit rate

Maximum wire length

Maximum length of a stub

Maximum length of all stubs

1 Mbit/s

25 m (82')

1.5 m (5')

7.5 m (25')

800 kbit/s

50 m (164')

2.5 m (8')

12.5 m (41')

500 kbit/s

100 m (328')

5.5 m (18')

27.5 m (90')

250 kbit/s

250 m (820')

11 m (36')

55 m (180')

125 kbit/s

500 m (1,640')

22 m (72')

110 m (360')

50 kbit/s

1,000 m (3,280')

55 m (180')

275 m (902')

 

  • Only use cables that are specified by the manufacturer for use in the CAN bus.