International Standards and Conformity Assessment for all electrical, electronic and related technologies



Reference EN 61131-3:2013
Title Programmable controllers - Part 3: Programming languages
Project Number 23726
Abstract/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.


Current Stage code 6060
Current Stage code date 2013-05-10
Current Stage code deadline 2013-12-27
Deadline date for vote  


Order Voucher  


IEC Technical Body IEC/SC 65B
Reference Document IEC 61131-3:2013 (EQV)
ICS 25.040 - Industrial automation systems
35.240.50 - IT applications in industry
Keywords Programmable; Controller; Languages
Note Supersedes EN 61131-3:2003*2013-03-07: Publication allocated to
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2013-05-10 2013-12-27 export to doc file  EN  FR  DE
5099 2013-03-27 2013-04-24  
5060 2013-01-21 2013-02-11 export to doc file  EN
5020 2012-11-16 2013-01-18  
3090 2012-03-09 2012-04-30  
5060 2012-01-31 2012-02-21 export to doc file  EN
5020 2011-08-26 2012-01-27  
1090 2011-08-23 2011-08-26  

Implementation Dates

date of Ratification (DOR) (1) 2013-03-27
date of Availability (DAV) (2) 2013-05-10
date of Announcement (DOA) (3) 2013-06-27
date of Publication (DOP) (4) 2013-12-27
date of Withdrawal (DOW) (5) 2016-03-27


Supersedes EN 61131-3:2003
Superseded by  
Normative reference (6) ISO/IEC 10646:2012
EN 61131-1
EN 61131-5
ISO/IEC/IEEE 60559:2011

(1) Date of ratification (dor) date when the Technical Board notes the approval of an EN (and HD for CENELEC), from which time the standard may be said to be approved

(2) Date of availability (dav) date when the definitive text in the official language versions of an approved CEN/CENELEC publication is distributed by the Central Secretariat

(3) Date of announcement (doa) latest date by which the existence of an EN (and HD for CENELEC), a TS or a CWA has to be announced at national level

(4) Date of publication (dop) latest date by which an EN has to be implemented at national level by publication of an identical national standard or by endorsement

(5) Date of withdrawal (dow) latest date by which national standards conflicting with an EN (and HD for CENELEC) have to be withdrawn

(6) This list of normative references is purely indicative. The only official list of normative reference is the list of the published standard.