Algorithm of the Converter of Control Actions Implementation on the PLC and Microcontroller

Abstract

The purpose of this work is to develop the software for the converter of control actions. The paper provides a brief description of the algorithm of practical implementation of the control actions converter. The relevance of the execution of such a converter on various hardware platforms is substantiated. A programmable logic controller and a microcontroller are used as the control device hardware. Analysis of the scientific literature and modern publications confirmed the relevance of the developing a fundamental controller algorithm task and determining the features and application program limitations implementing the algorithm on a PLC and a microcontroller. The main part of the paper presents the developed converter algorithm for the microcontroller, the algorithm limitations and ways to improve the accuracy of its operation. The program code takes into account the time delay influence not only of the converter, but also the microcontroller command execution time. Developed in the universal programming environment CoDeSys v2.3 the program implementing the target algorithm can be adapted to almost any type of industrial controllers using target files. The evaluation of the characteristics of the developed program version that the converter implements on the PLC is performed. To debug the developed converter software implementation, the algorithm accuracy was studied for various system input parameters. The further development of the proposed regulator version by the authors consists in writing the program code for the Simatic S7-313-2DP controller and conducting the experimental part of the converter of control actions study using the industrial controller hardware.