Industrial Automatic Control Systems and Controllers Annotation << Back Development and Research of a Temperature Control System in a Railway Carriage of the SV Type E.D. Rogozhnikov, L.I. Medvedeva This article discusses the problems of developing an automated temperature control system in a railway carriage of the SV type. In the course of the study, the dependence of the boiling point of the refrigerant in the evaporator used to cool the incoming a ir on its pressure is established. On the basis of this dependence, the refrigerant pressure, which must be achieved with the help of the compressor, and the temperature in the air duct of the car are established. The main task is to write a software system for collecting the set temperature from all compartments of the car; compressor motor control; setting a certain temperature in the ventilation system and controlling the mixing process of air supplied to a particular compartment. The CoDeSys industrial automation software package was chosen as an integrated development environment. Keywords: temperature control, railway carriage, microclimate, software system, CoDeSys. DOI: 10.25791/asu.2.2022.1343 Pp. 03-07.