IEC 61131 is an
IEC standard for
programmable controllers. It was first published in 1993;
the current
(third) edition dates from 2013.
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.
Sections of IEC 61131
Standard ''IEC 61131'' is divided into several parts:
* Part 1: General information. It is the introductory chapter; it contains definitions of terms that are used in the subsequent parts of the standard and outlines the main functional properties and characteristics of PLCs.
* Part 2: Equipment requirements and tests - establishes the requirements and associated tests for programmable controllers and their peripherals. This standard prescribes: the normal service conditions and requirements (for example, requirements related with climatic conditions, transport and storage, electrical service, etc.); functional requirements (power supply & memory, digital and analog
I/Os); functional type tests and verification (requirements and tests on environmental, vibration, drop, free fall, I/O, power ports, etc.) and
electromagnetic compatibility
Electromagnetic compatibility (EMC) is the ability of electrical equipment and systems to function acceptably in their electromagnetic environment, by limiting the unintentional generation, propagation and reception of electromagnetic energy whi ...
(EMC) requirements and tests that programmable controllers must implement. This standard can serve as a basis in the evaluation of safety programmable controllers to
IEC 61508
IEC 61508 is an international standard published by the International Electrotechnical Commission consisting of methods on how to apply, design, deploy and maintain automatic protection systems called safety-related systems. It is titled ''Functio ...
.
*
Part 3
Part, parts or PART may refer to:
People
*Armi Pärt (born 1991), Estonian handballer
* Arvo Pärt (born 1935), Estonian classical composer
* Brian Part (born 1962), American child actor
* Dealtry Charles Part (1882–1961), sheriff (1926–1927) ...
: Programming languages
*
Part 4: User guidelines
*
Part 5: Communications
*
Part 6: Functional safety
*
Part 7:
Fuzzy control
A fuzzy control system is a control system based on fuzzy logic—a mathematical system that analyzes analog input values in terms of logical variables that take on continuous values between 0 and 1, in contrast to classical or digital logic, ...
programming
*
Part 8: Guidelines for the application and implementation of programming languages
*
Part 9: Single-drop digital communication interface for small sensors and actuators (SDCI, marketed as
IO-Link[http://www.io-link.com/share/Downloads/Spec-Interface/IOL-Interface-Spec_10002_V112_Jul13.pdf ])
*
Part 10: PLC open XML exchange format for the export and import of IEC 61131-3 projects
Related standards
IEC 61499 Function Block
PLCopen has developed several standards and working groups.
* TC1 - Standards
* TC2 - Functions
* TC3 - Certification
* TC4 - Communications
* TC5 - Safe Software
* TC6 -
XML
* Motion Control Library
* Presentation on IEC 61131-3
References
Sources
* R.W. Lewis, ''Modelling control systems using IEC 61499''
* R.W. Lewis, ''Programming industrial control systems using IEC 1131-3''
* K.H. John & M. Tiegelkamp, ''IEC 61131-3: Programming Industrial Automation Systems''
External links
*
* PLCopen.org - International Not-For-Profit organization that supports and extends the IEC 61131 programming standard. http://www.PLCopen.org
* PLCopen North America http://www.PLCopen-NA.org Part of PLCopen
* XML Standard Documentation: https://web.archive.org/web/20080523154515/http://www.plcopen.org/pages/tc6_xml/
{{List of IEC standards
Electronic engineering
#61131
Programmable logic controllers