Application of Programmable Logic Controller in Sugar Industry Control System

Abstract

The sugar production operation is one of the complicated industries. Most of sugar factories in Sudan use conventional circuits to control the different process stages of sugar industry mainly relay circuits in control. The enhancement in the control means for mill operation is going to improve the overall mill efficiency. The existing control system of the cane grinding stage is composed of relays and contactors, thus, there are many deficiencies in the system such as unreliability, complicated troubleshooting, hard following of wiring diagrams and more over maintenance work is costy. The purpose of this work is to use Siemens programmable logic controller with ٍSIMANTIC S7-Micro/win software to control the sugar industry to reduce the spare part, maintenance time consumption and to provide automatic operation, thus the operator will be capable of monitoring and controlling all of the stages of the sugar industry process.