In process industries, field buses have dominated the connection establishment between sensors, actuators and controllers. In large scale industries the number of sensors and actuators are greater in number where wiring of such components to the controller involves higher installation cost. Ageing of cables also pose as a great disadvantage as the quality of the cable erodes day by day. In order to overcome this problem a wireless communication can be chosen as an alternative. In this project the Global System for Mobile Communications is chosen for the wireless communication. SCADA stands for Supervisory Control and Data Acquisition, this software provides the necessary details about the process information with animations wherever needed. Continuous monitoring of the process can be done through the SCADA software by interfacing it with an industrial modem which could update us continuously about the process parameters. Upon interfacing, messages will be sent to the corresponding registered mobile number through short message service. The time delay between the instant at which the parameter is actually read and the instant at which the message regarding the parameters reaches the mobile is studied.

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Cascade Pid Controller Scada.