F08700 (A) CAN: Communications error

Reaction: OFF3 (NONE, OFF1, OFF2)

Acknowledge: IMMEDIATELY

Fault value (r0949, interpret decimal):

1: The error counter for the send telegrams has exceeded the BUS OFF value 255. The bus disables the CAN

controller.

- bus cable short circuit.

- incorrect baud rate.

- incorrect bit timing.

2: The master no longer interrogated the CAN node status longer than for its "life time". The "life time" is obtained

from the "guard time" (p8604[0]) multiplied by the "life time factor" (p8604[1]).

- bus cable interrupted.

- bus cable not connected.

- incorrect baud rate.

- incorrect bit timing.

- master fault.

Note:

The fault response can be set as required using p8641.

- check the baud rate (p8622).

- check the bit timing (p8623).

- check the master.

The CAN controller must be manually restarted with p8608 = 1 after the cause of the fault has been resolved!