Programmable Logic Controller

A programmable logic controller is a solid-state control system that contains user-programmable memory for storing instructions. Those stored instructions implement functions such as I/O control, logic, timing, counting, three-mode (PID) control, communication, arithmetic, and data and file processing.

Source checked1/1 values · 2026-10-25System

Specification

1 source
Kindsystem

Study notes

  • The definition is taken from The Automation, Systems, and Instrumentation Dictionary.
  • The term appears in NIST SP 800-82r3 and NISTIR 8183, and is carried into NISTIR 8183 Rev. 1.
  • The term also appears in NISTIR 8183A Vol. 1, Vol. 2 and Vol. 3.
↑↓ navigate↵ openesc close