Design, Development of a Diversified Implemention of a Supervisory Control And Data Acquisition based VLSI System (SCADA) framework Utilizing Microcontroller based Programmable Logic Controllers

Abstract

In this paper, the designing & implementing of a supervisory control and data acquisition system (SCADA) framework utilizing microcontroller based programmable logic controllers is presented in brief with some of the simulated results. This article shows the automation of a process by interfacing a weighing balance with Supervisory Control And Data Acquisition System (SCADA) through a Programmable Logic Controller (PLC). The research work was taken up as a part of the consultation work at a cigarette manufacturing firm. The detailed study of the entire cigarette manufacturing process revealed that after the processing of tobacco, which is the final stage in the production department, the processed tobacco is weighed in bins on a weighing balance and manually recorded by an operator. The operator has to keep a count of the bins and sum them up at the end of the day. This involves consumption of time and human labor. The aim of our research work is to automate this process so that the information regarding various blends of cigarette and their respective weights can be made available at every PC terminal at the end of the day. For storing this information, we are using the MS-Excel spreadsheet and writing in it with the help of SCADA script. The work discusses in detail the design, architecture, programming and implementation of a PLC. It also covers the various features offered by the SCADA software and also deals with the interfacing of the PLC and SCADA. The interface RS232C / RS485 is used. This work is an online research project which has now been implemented in the firm and yielding desired results. The simulated & experimental results shows the power of the methodology that has been developed in this research paper.