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During automated conveyor system overload, which consequence results when the PLC's scan cycle exceeds its maximum configured execution time?

A)Communication bus synchronization loss
B)Inconsistent state machine transitions
C)Motor drive thermal runaway
D)I/O module address collision

💡 Explanation

Inconsistent state transitions occur because, during PLC cycle overrun, sampled inputs change mid-cycle; the system experiences inconsistent states rather than continuous operation, because the PLC misses timing windows during operation. Therefore, the program will execute erratically rather than predictably.

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