Answer / guest

The automation of many electromechanical processes, such as
the movement of machinery on an assembly line, is done through
the use of small computers called programmable logic
controllers (PLCs). A PLC contains a programmable
microprocessor that is programmed using a specialized computer
language. Typically, the program for the automated process is
written on a computer and then is downloaded onto the
programmable logic controller directly through a cable
connection. The program is stored in the programmable logic
controller in non-volatile memory.

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