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Industrial automation · manufacturing · OT — updated 2026-09-23

PLC

Rugged deterministic controller running scan-cycle logic.

Programmable logic controller: a ruggedized computer executing deterministic scan cycles — read inputs, run logic, write outputs — typically programmed in IEC 61131-3 languages. The default controller for discrete automation and small process skids.

See also: IEC 61131-3 · DCS · RTU

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