One of the largest chemical enterprises in the Republic of Belarus, forming the basis of its petrochemical industry, has been working stable over the last few years, performing and overachieving all primary estimated figures. Due to constant and scheduled conducted works on technical re-equipment and modernization of the operating shops and machinery, including replacement of PCS and ESD systems to the DCS system of control without change of technological part of the project, production facilities under primary types of products increased twofold. The project of supply of instrumentation and control tools of the driving equipment for ammonia production shop was performed. Equipment of the following producers was applied: YokogawaElectric, Draeger, Wika, Krohne ,FoxboroEckardt, Azbil, Vega, Honeywell, UnitedElectric, ASCO. The implemented solution increases reliability of the control system, allows optimum distribution of the applied equipment.