One Function of a PLC Input Interface Module Is to

One function of a PLC input interface module is to

A) accept signals from field devices and convert them into signals that can be used by the processor.
B) convert signals from the processing unit into values that can be used to control the machine or process.
C) input signals from the programming device and convert them into signals that can be used by the CPU.
D) interpret and execute the user program that controls the machine or process.