Programmable Logic Controllers Question
What are the general functions of a PLC?

Question

Programmable Logic Controllers Question

What are the general functions of a PLC?

Accepted Answer

The functions of PLC are as follows:

1) Sequential Control: PLC processes binary signal input into output that is used for the purposes of sequential technical processing, here PLC keeps all steps in the sequential process in the right order.

2) Plant Monitoring: PLC continuously monitors the status of a system and takes the necessary actions in connection with the process being controlled or displaying the message to the operator.

3) Shutdown System: The working principle of a PLC is to receive a process input signal that is controlled and then process the input signal in accordance with the program stored in memory and then produce an output signal to control the actuator or other equipment

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