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Industrial System Automation and Control

Introduction to Programmable Logic Controller

Programmable logic controller is a well-known controlling device used to control the production process at industrial level where bundle of products are being manufactured in seconds. PLC is being used for the batch products. There are different manufacturing industries which are producing PLC units to control the large machines. These PLC are organized and trained using the ladder logic or other programming to perform different functions. PLC hardware basically consists of a computer in which the PLC is programmed using ladder logic or any other programming. The second part is the input output unit of the PLC in which the input is given to the controller and output is sent to the device to which the PLC is controlling. A PLC consists of number sensors including temperature, proximity and light sensor. The major function of these sensors is to get the run time data fro....