CAN Module Warning/Bus-Off

What does ce6 mean?

The CAN function module on the FIF has reported a 'Warning' or 'Bus-Off' status, indicating underlying communication issues. This often points to problems with bus termination, cable shielding, PE connection, or an overloaded bus. While 'Warning' might allow limited operation, 'Bus-Off' will completely halt communication.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Ensure the protective earth (PE) connection for the controller and bus components is secure.

2. 4

   Assess the bus load and, if necessary, reduce the baud rate to improve communication reliability.