Introduction to Programmable Logic Controllers (PLC's)

 

Programming Logic controllers
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 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.