The power light is on when the PLC has proper ______________________________ voltage input to the power supply module and the correct ______________________________ output voltage from its power supply module.

The CPU fault light on the front of the PLC panel is turned off when there is an error in the operation of the PLC ladder logic diagram.

The ______________________________ light is on when the processor is in the run mode.

A(n) ______________________________ condition is when the programmer can close or open inputs and turn outputs on or off using computer keystrokes.

The ______________________________ instruction reads input data from an input module or register and then compares the input data to the step patterns in a bit data file (B3 or B10) or integer data file (N7).

The ______________________________ light is on when the PLC processor detects an error in the ladder logic diagram.

Excessive pollution in the environment around a PLC can damage the PLC’s ____.

PLC input/output ports cannot be checked in the forced mode before connecting them to external input/output devices.

File B3 may be used to hold the sequencer output (SQO) instruction’s patterns.

Technicians should, as part of routine maintenance, ____.