AC800M - The Idle thread has executed less than 1%
Hello, we are running different application in different processor module types. There are PM864, PM866 and PM891 with similar application but different task times and 800xA 5.1 FP4. The task times have been adjusted to not exceed 50% cyclic load. Anyway we receive the warning in the controller log "The Idle thread has executed less than 1%" allthough the cyclic load is at 47% and the total system load at 57%.
What is the reason for that warning?
It looks like the issue may have been caused by faulty/ failed MMS connections from the connectivity server to the Controllers. The restart of the connectivity server terminated the old connections and created fresh/ successful connections to the controller. This seems similar to the issue depicted by the PIN 800xACON-OL-5110-047. As to what caused the failed connections in the first place, the most likely reason could be some network disturbance which could have resulted in some faulty connections.