The International Standard IEC 61131 series describes programmable logic controllers (PLCs). PD IEC/TR 61131-8 provides guidelines for the implementation and application of the programming languages defined in IEC 61131-3.
PD IEC/TR 61131-8 provides you with a general introduction to IEC 61131-3. IEC 61131-3 is mainly oriented toward the implementers of programming languages for programmable controllers. Users who wish a general introduction to these languages and their application should consult any of several generally available textbooks on this subject.
PD IEC/TR 61131-8 provides:
Note: PD IEC/TR 61131-8 does not address the safety issues of programmable controller systems or their associated software.
PD IEC/TR 61131-8 on programming language implementation is useful for:
A programming language implementation is a system for executing computer programs. It contains rules for instructing a computer to perform specific tasks. The programmers have to follow all the specified rules before writing a program using the programming language. Programming language implementers will find PD IEC/TR 61131-8 more useful referring to the background material as necessary.
PD IEC/TR 61131-8 helps users of programmable controller systems, who will program, configure, install and maintain programmable controllers as part of industrial process measurement and control systems.
PD IEC/TR 61131-8 provides complementary information about the application of some of the programming language elements specified in IEC 61131-3. PD IEC/TR 61131-8 provides you with information about the intended implementation of some of these programming language elements.
IEC TR 61131-8:2017