Process automation of demineralization plant using Delta PLC, wonderware intouch and Delta HMI

Abstract

The proposed project is to design a commercial Programming Logic Controller based automation unit with SCADA and HMI for Demineralization Unit. In Demineralization, the raw water obtained from underground and Lake is treated to meet standard as per usage. Some of the closely monitored are pH, turbidity, etc. The automation tool designed uses DELTA PLC which is interfaced to local HMI which is in-turn connected to Wi–Fi using TP– Link thus supporting Remote Monitoring and Control. For centralized control unit SCADA is used by interfacing PLC with Computer. To match the communication protocol between PLC and SCADA, OPC software called KEPServer is used. Significant improvement in quantity and quality of demineralized water can be achieved. The proposed design is cost effective as it suit for small scale industry.