PROGRAMMABLE LOGIC CONTROLLER BASED IMPLEMENTATION OF SUPERVISORY CONTROL FOR SUGAR REFINERY

Supervisory Control is widely used in industrial control processes and implemented by Supervisory Control & Data Acquisition (SCADA) system. SCADA system is developed for this process with three layers - supervision layer, process control layer and field instrument layer. Vijeo Citect SCADA software package (Schneider Electric) is used in supervisory layer, Programmable logic controller (PLC) from Schneider Electric (BMX P34 2020) and Unity Pro XL (PLC programming software) are used to build up process control layer, and field instruments (Solenoid valves, pumps etc.) are used to build up field instrument layer. The aim of this paper is to implement the hardware components for controlling the sugar refinery and to interface between master station and control unit for controlling the data. PLC is the main hardware component of this system and it is the programmable controller used to control the sugar refinery according to the downloaded program in it.