The first part of the training manual discusses the structure and main characteristics of programmable logic controllers (PLCs). The capabilities of the configuration of the control system based on the Mitsubishi MELSEC FX0S, FX2N PLC series are shown. The classification of the PLC programming languages ​ ​ according to the IEC 1131-3 standard and the basic rules for programming in the relay-contact circuit (LD) language are presented. The appendices provide a brief overview of the standards for networking PLC and SCADA systems The second part provides a course of laboratory work to obtain practical skills in creating automated control systems based on PLC.