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Modern supervisory control systems cover a large number of different solutions for different production processes. A pneumatic transport process of powdered and granular materials served as an example in this paper. The supervisory control system performs a task of controlling and supervising transport paths. The paper presents a possible solution for a supervisory control system and its practical realization. The task of this SCADA (Supervisory Control and Data Acquisition) system is to meet all functional requirements and to offer a user-friendly everyday production system. The practical implementation of SCADA system is based on the underlying programmable logic controller. The solution presented in the paper can be used in similar transport systems in production plants.