We have been encountering an issue with a five of our M40 (PROFINET-IRT) module cards.
During the initialization process, we have observed that the card is stuck in the setup state (where ABCC_AnbState() always returns ABP_ANB_STATE_SETUP). Also, there is no way to communicate with the card via the M.2 interface (where ABCC_isReadyForCommunication() always returns ABCC_NOT_READY_FOR_COMMUNICATION).
The LEDs are as follows:
P: Solid Green
U: Flashing Green
Out of the five cards, one briefly did not exhibit this behavior. However, after a Windows stop screen occurred, the card reverted back to this behavior.
What would cause this behavior? Is there a graceful way to recover from this behavior?