Industrial Automatic Control Systems and Controllers Annotation << Back Rudiments and Trends in the Development of Technologies for Developing PLC Software Projects O.V. Shishov The development trends of software development projects for programmable logic controllers are considered. Conclusions are made, including, based on the analysis of the reasons leading to the withdrawal from the practice of certain methods, techniques and technologies peculiar to this area in previous years. Keywords: programming languages of industrial controllers; PLC; IEC 61131-3 standard; Codesys package. DOI: 10.25791/asu.10.2020.1224 Pp. 17-24.