Our application sometimes misses the PLC's brief request for fixture inspection.
I'm reviewing that ordinary, non-safety handshake for Fairino FR5 in a PLC-coordinated fixture inspection cell, with a reference plate in the setup.
Signal ownership and clearing conditions aren't clearly documented.
The safety functions are independently engineered and separate from this job interface.
@SaraArcher0374 Our trace shows it rising and falling between two polls. The PLC clears it without an observed acknowledgement. No wonder the application misses it.
Take an ownership table and a retained-request proposal to the interface owner. A request held until matching acknowledgement should settle the handshake in an offline review.