eisenpferdreiter

Hello William B.,

the references to OB86 and OB82 are a follow up. System resets the bus, thus all devices report station return, which references to OB86. You see station return message for every device on bus with addresses.
Then all the modules report their OK-status, which references to OB82.

You see that all these are outgoing events.

Incoming events, and thus relevant for analysis, are just configuration difference and the following warm start.

regards

William B.

eisenpferdreiter

Hello William B.,

the references to OB86 and OB82 are a follow up. System resets the bus, thus all devices report station return, which references to OB86. You see station return message for every device on bus with addresses.
Then all the modules report their OK-status, which references to OB82.

You see that all these are outgoing events.

Incoming events, and thus relevant for analysis, are just configuration difference and the following warm start.

regards

If an error like this happens and there does not exist an OB82 and an OB86,
the PLC will go into STOP.
If there are an OB82 and an OB86 the PLC displays a FAULT mode but does not go to STOP.
Right?

w

New question published by pman is split to a separate thread with the subject PLC should go to start mode.

Best regards
Min_Moderator