Level Plant Automation Using Yokogawa DCS Centum-VP - A Case Study

Abstract

In chemical Process Industries various unit operation and unit process has been involved to produce the desired product from the raw materials and available resources like sugar, paper, cement, food processing industries. Chemical process industries are development and application of manufacturing process which involves the sequence of operation takes places either physical changes or chemical transformation of material. The sequence of unit operation and unit process are has been Monitor and Control the overall plant Processes the centralized Monitoring and Controlling of All the Process Will Lead to Increase the plant efficiency, Productivity and Plant Safety. The overall plant parameters are monitored in centralized and control action takes place in distributed manner. In this Paper deals with the implementation of centralized control for the plant process variables like level, flow, pressure and temperature. The purpose of automation to monitor the process parameters like maintain the product quality, consistency, reduce start-up time, and increase speed of operation with human safety. Among these variables level is a one of the critical parameter to maintain the desired level to achieve the product quality. The laboratory scale up model of level Process Station has been implement By Configuring and Developing a Human machine interface or operator station (HMI) and Field control station (FCS) Using DCS. The PID Controller Attempts To Minimize The Error By Adjusting The Controller Output. The controller parameters are calculated by Using Cohen and Coon Tuning Algorithm. Implementation of Distributed Control System (DCS) for the level process station. A Centralized control action is to be taken for the system which is functionally as well as physically distributed is called Distributed Control System (Yokogawa Centum VP). Distributed control system has centralized control which is located in a control room of each process industries and control scheme has to distribute to the field stations.