Why can't I detect that the RIO manager is missing during the start of the RIO?

FAQ #101653

 

Symptom
The diagnostic flag "ManagerNotPresent" from the programmed Smart Ethernet RIO PCD3.T665 or PCD3.T666 is working fine if the RIO manager is present on start-up of the RIO (e.g. if the connection is removed).
But if the RIO is started without the connected master it is not detected by the RIO that the manager is missing (and the flag "ManagerNotPresent" together with all other diagnostic flags is not updated on the RIO).

Reason
Due to an error in the firmware 1.16.42 for the PCD3.T665|T666 the missing master is only detected in runtime but not at start up.

Solution
Please update the firmware of your PCD3.T665|T666 to version 1.16.47 or later.