The component of a PLC that interfaces between input field devices such as pushbuttons, limit switches, selector switches, and the like and the CPU is the ____.
A) PLC rack
B) input module
C) output module
D) power supply

Question

Quizplus · Accepted Answer

The input module is responsible for receiving signals from input field devices and converting them into digital signals that the CPU can process. The PLC rack contains all the modules, including input and output modules. The output module is responsible for sending signals from the CPU to output field devices such as motors, valves, and lights. The power supply provides the necessary voltage and current for the PLC to operate. Therefore, the best choice is B, input module.

The Component of a PLC That Interfaces Between Input Field