Concept
IEC 61131
Overview
IEC 61131 is an IEC standard for programmable controllers. It was first published in 1993; the current (4th) edition dates from 2025. It was known as IEC 1131 before the change in numbering system by IEC. The parts of the IEC 61131 standard are prepared and maintained by working group 7, programmable control systems, of subcommittee SC 65B of Technical Committee TC65 of the IEC.
Overview adapted from Wikipedia (CC BY-SA 4.0; see the article history for authors).
Related ideas
Place in the tradition
Part of Fuzzy logic.