How to make AC800M Controller load 100% contineously?
Try a structured text "For Next" or "Do While" loop that never exits. This increases the cyclic load.
The controller should try to halt execution of the controller task before it overruns and crashes. ( I have acutally seen this happen when somebody decided a For Next loop was a "good" idea ).
Then load the controller up further with too many OPC subscriptions running at a short interval. You can speed up the fastest subscription time in the OPC server configuration for the controller. This increases the controller communications load.