Our application misses some brief PLC verification requests, and the ordinary job-interface notes don't say who owns clearing. I'd like the two authors to walk through the actual exchange before anybody lengthens a pulse and calls the problem fixed. Safety functions are separate from this handshake.
Can you show an observed missed request beside the application reads? Then agree one writer and defined receipt, completion and clearing conditions for each identified job; timing alone cannot supply that ownership.
We have the PLC trace but no matching application-read times for that occurrence. I've asked both authors to define the capture and shared sequence, including restart. No replacement handshake is agreed yet, even though everyone agrees the present notes are thin.