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Cannot establish CANbus communication between MPM controllers.

Issue

Cannot establish CANbus communication between MPM controllers.  

Environment

MPM controllers, any version

Cause

The CANbus trunk is missing the end of line resistors on the two end MPM controllers.  Each of the MPM controllers which are at the end of the CANbus trunk must have an 120 ohm resistor installed.

Resolution

Install a 120 ohm resistor at both ends of the CANbus trunk.

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Version history
Revision #:
1 of 1
Last update:
‎2018-09-06 09:07 AM
Updated by: