Programmable Logic Controller (PLC) is a microprocessor based system that uses programmable memory to store instructions and implement functions such as logic, sequencing, timing,counting and arithmetic in order to control machines and processes.
PLC Features : • PLC features can be concluded in the following: • They are rugged, withstand industrial environment, such as heat, humidity, mechanical shocks and vibrations • The interfacing for inputs and outputs is inside the controller • They are easily programmed • PLC is capable of both logic and PID control.