Abstract

The language of sequential function circuit - SFC has special importance among five languages of standard IEC61131-3 of PLC controllers programming. Sequential system algorithm developed in the language may be performed in one of the other languages of the standard. The controllers are often programmed in language of ladder diagrams. The paper deals with the method of microcontroller program creation on the basis of SFC diagram for Modicon Micro PLC controller, which is programmed in ladder diagram language. The method may be used for controllers of other manufacturers as well as transferred into different languages and further in embedded microcontrollers.

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