What is a PLC (Programmable Logic Controller)?

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Accepted Answer

PLC is a digital computer used for automation of electromechanical processes in industries.

PLC is a hardware device that receives inputs from sensors and other devices, processes them using a program, and then generates outputs to control machines or processes.
It is used in industries for automation of various processes such as assembly lines, packaging, and material handling.
PLCs can be programmed using ladder logic, function block diagrams, or structured text.
Examples of PLC manufacturers include Siemens, Allen-Bradley, and Mitsubishi Electric.