Power supply provides system power requirement to processor, I/O and communication modules. time required to execute the control program.Įxplain The Role Of Power Supply In Plc System ?.The CPU’s are distinguished with following features: This component act as a brain of the system.CPU consist of Arithmetic Logic Unit, Program memory, Process image memory, Internal timers and counters, flags It receives information from I/P device, makes decisions depending upon the information and logic written and sends information through the O/P devices. PLC Senses the input through I/P modules, Processes the logic through CPU and memory and gives output through output module. PLC plays most important role in automation.Īll the monitoring as well as the control actions are taken by PLCs. PLC can be used in almost all industrial application solutions right from small machine to large manufacturing plants.Įven it caters applications of redundant systems at critical process plants. The field I/p include element like limit switches, sensors, push button and the final control elements like actuator, solenoid/control valves, drives, hooters etc.
It is a class of industrially hardened devices that provides hardware interface for input sensors and output control element.
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