Programmable Logic Controller
Programmable Logic Controller (PLC) is an electronic circuit that can work on various control functions of the complex. PLC can be programmed, controlled, and operated by operators who are inexperienced in operating a computer. PLC is generally depicted by lines and equipment on a ladder diagram.
But now Computer Industries PLC is used to monitor and control industrial processes. PLC can be programmed with a variety of logic in accordance with the control objectives. With this program, the PLC will generate control signals used to control external equipment.
Before the PLC, use the relay as the first at the main control tool for process control. With is by using the relay has a loss that is using a place that is too large and cannot be used to control complex.
PLC is an electronic device to replace the relay function. At that time, the PLC only works for ON-OFF conditions for motor control, solenoid, and the actuator. This tool is able to take better decisions than ordinary relay.
In early 1980, the PLC is more widely used and some electronic and computer companies make the PLC in large volumes. PLC is also used for building automation systems and also security control system.
Currently, the PLC has become an intelligent tool, which is a major requirement in modern industry. PLC can process data and perform data store. PLC is designed to be able to control the machine with the process of implementing the control of sequential logic functions, operation timing (timing), enumeration (counting), and arithmetic.
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About the Author:
I am a programmer plc on one of the automotive components companies.
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