A Single Output Device Has Failed While the Remainder of the PLC

question 85

Multiple Choice

A single output device has failed while the remainder of the PLC system is functioning normally. The indicator light on the output module indicates that a signal is sent to the output point where the device is connected. You would now:

• A)trace the circuit back through the logic to locate the inputs.
• B)use a programming terminal to call up the rung that controls the output to see if the output coil is on.
• C)check the point where the output device's field wiring is connected to the output rack.
• D)check the input modules for short-circuit conditions.

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