The majority of PLC system faults are caused by:
A)faulty power supplies.
B)malfunctioning microprocessors.
C)software failure.
D)field wiring and devices.

Question

Quizplus · Accepted Answer

The most common cause of PLC system faults is field wiring and devices. This can include wiring mistakes or damage, faulty sensors or actuators, and environmental factors like temperature or moisture. Faulty power supplies, malfunctioning microprocessors, and software failure are also possible causes of faults, but they are less common.

The Majority of PLC System Faults Are Caused By