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IEC 61131-3:2013 ED3

Programmable controllers - Part 3: Programming languages
20 shk 2013

General information

99.60     22 maj 2025

IEC

TC 65/SC 65B

International Standard

25.040.40     35.240.50  

anglisht   frëngjisht  

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Scope

IEC 61131-3:2013 specifies the syntax and semantics of a unified suite of programming languages for programmable controllers (PCs). This suite consists of two textual languages, Instruction List (IL) and Structured Text (ST), and two graphical languages, Ladder Diagram (LD) and Function Block Diagram (FBD). This third edition cancels and replaces the second edition, published in 2003 and constitutes a technical revision. It includes the following significant technical changes: It is a compatible extension of the second edition. The main extensions are new data types and conversion functions, references, name spaces and the object oriented features of classes and function blocks.

Life cycle

PREVIOUSLY

WITHDRAWN
IEC 61131-3:2003 ED2

NOW

WITHDRAWN
IEC 61131-3:2013 ED3
99.60 Withdrawal effective
22 maj 2025

REVISED BY

PUBLISHED
IEC 61131-3:2025 ED4