Assuming the ladder diagram of figure "1" and the corresponding input/output diagram of figure "2" represents a simple PLC motor controller, what statement is true? EL-0232

Correct Answer: Option A — The input switch is a maintained contact on-off selector switch, output "A" is the motor contactor coil, and output "B" is a motor run status lamp for the running condition.

Maintained contact switches keep circuits energized continuously. In marine PLC programming, output "A" energizes the motor contactor coil, while output "B" illuminates the run status lamp only when the circuit is closed and the motor runs.