Industrial Automatic Control Systems and Controllers Annotation << Back Application of Automatic Programming Technology in the CODESYS Environment to Implement a Process Control System Silaev A.A., Silaeva E.Yu. The implementation of a discrete control system for a coolant preparation system using the automatic programming paradigm is considered. A state graph of a discrete control system is implemented in the form of a fi nite state machine. The technological process of preparing coolant consists of four stages: initial state, pouring liquid, mixing the liquid and draining the liquid. For each stage, the conditions for transition to the next stage are indicated. An implementation of the control system program code in the ST and SFC languages is presented. Conclusions are drawn about the effectiveness of this approach for implementing a control system for technological processes and production. Keywords: automatic programming, ST language, SFC language, discrete control system, PLC programming. DOI: 10.25791/asu.4.2024.1502 Pp. 37-43.