A set of predefined jobs executed sequentially and systematically by the help of hardware and software is the concept of industrial automation. Industrial automation helps in Increasing Productivity, Increasing Quality, Reducing Cost, Increasing Safety in working conditions. Industrial automation is basically consisting of Hardware control, Software control and Field instruments. Hardware control is consisting of microcontrollers, PID controllers, PLC controllers and DCS controllers. Software controller is SCADA and field instruments is consists of sensors and output devices. Python is an interpreted, object-oriented, high-level programming language with dynamic semantics. Python's simple, easy to learn syntax emphasizes readability and therefore reduces the cost of program maintenance. Python supports modules and packages, which encourages program modularity and code reuse.