Correct option is A
In a Programmable Logic Controller (PLC) system, the input and output modules are essential components that allow the PLC to interact with external devices. Here's a detailed explanation:
Output Module:
An output module is used to control external devices based on the PLC’s program. Examples of output devices include lamps, motors, alarms, and actuators.
A lamp is a typical example of an output module because the PLC can turn it on or off based on the logic defined in its program.
Input Module:
An input module is used to receive signals from external devices, allowing the PLC to monitor and respond to various conditions. Examples of input devices include pushbuttons, switches, sensors, and limit switches.
A pushbutton is a typical example of an input module because it sends a signal to the PLC when pressed, which the PLC can then use to make decisions in its control logic.
Therefore, the correct answer is lamp; pushbutton.
