Scada Implementation Using Gsm Network for Communication

Remote and centralized control is the basic need of todays industrial control systems, where a separate microcomputer monitors and controls the process at each remote unit. Collecting and displaying data from remote sites on a single monitoring unit let the operator to supervise all the sites, regardless of the volume of industry. Different aspects of Supervisory Control And Data Aquisition (SCADA) system is a vast field for the researchers. This paper presents an implementation of a SCADA system, and particulary focused on the communication scheme between Remote Terminal Unit (RTU) and the Master Terminal Unit (MTU). The developed system consist of a single Remote Unit that is a microcontroller based system with temprature sensor, relays and a DC motor interfaces. A windows application is developed working as the master unit that communicate with the RTU through short messaging services(SMS).The RTU collects data through its interfaces and transmit for MTU using the Global System for Mobile communication (GSM) network. The proposed system is simulated using Proteus and the positive, accurate and timely response approved the system for implementation.