I/O card operating condition and wiring fault detection are reflected in the status of PV, OUT, and BKCAL_OUT. A limited SP condition is reflected in the BKCAL_OUT status. When simulation is enabled through the SIMULATE parameter, you can set the value and status for PV and READBACK.
When the block is in Cas mode and the CAS_IN input goes bad, the block sheds mode to the next permitted mode.