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Glossary SCADA / Term

PLC

A control device that employs the hardware architecture of a computer and relay ladder diagram language. Inputs to a PLC can originate from many sources including sensors and the outputs of other logic devices.

The term PLC was once used for a "Programmable Logic Controller,” but the word has become an anacronym as few people use its original meaning.

See also: DCS

Permanent link PLC - Creation date 2020-09-12


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