IEC 61131-3 is the third part (of 10) of the international standard IEC 61131 for programmable logic controllers. It was first published in December 1993 [1] by the IEC; the current (third) edition was published in February 2013. [2]

2021年3月25日 · IEC 61131-3 defined a minimum set of structures, the basic programming elements, and syntactic and semantic rules for programming languages used for programmable controllers. The advantages of IEC 61131-3 are: Improved interoperability of programming languages; Higher programming efficiency; Reduced errors; Improved reusability; Modularization

IEC 61131-3 specifies several data types (Bool, Byte, Integer, ...). These differ, for example, in the number of bits or the use of signs. It is also possible for the user to define new data types: user-defined data types such as structures and arrays.

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 part of IEC 61131 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).

The English version of DIN EN 61131-3 : 2013-02 (3rd Edition) is available from Beuth Verlag GmbH, 10787 Berlin, Fax +49 (030) 2601-1260. IEC 61131-3 “PLC Programming Languages” Implementer: Siemens AG. Product: STEP 7 in TIA Portal Date: 2014-07-21 This Product complies with the requirements of the standard for the following language features:

IEC 61131-3 is the third part of the IEC 61131 family, and is a specification of the syntax and semantics of a unified suite of programming languages, including the overall software model and a structuring language. Within the common elements, the data types are defined. Data typing prevents errors in an early stage.

IEC 61131-3 is a key standard in the world of industrial automation. By standardizing the programming languages and software architecture of PLCs, it makes it easier for engineers to learn, use, and share PLC programming.

2015年9月14日 · The IEC 61131-3 standard, combined with new powerful Freescale chip architectures, enables an entire controller to be delivered in an embedded device. Control programs can run distributed and independently rather than concentrated in large controllers.

Codesys (spelled “CODESYS” by the manufacturer, previously “CoDeSys”) is an integrated development environment for programming controller applications according to the international industrial standard IEC 61131-3.. CODESYS is developed and marketed by the CODESYS Group that is headquartered in Kempten.The company was founded in 1994 under the name 3S …