The Grafpol programming language for programmable logic controllers

摘要

In the paper, the new Grafpol programming language for PLCs is presented. The theoretical framework for the new language and its network models have been provided: the operation network and the Grafpol network. The syntax of the Grafpol language has been defined and described. Principles of notation of sequential and concurrent procedures used in algorithms for discrete manufacturing processes by means of the Grafpol language have been developed and presented. Compliance of the Grafpol language with requirements of the IEC: 1131-3 standard referring to PLC programming l anguages has been proved.