What Is A Programmable Controller?

What is a programmable controller?
The abbreviation of Programmable Controller-PLC is a new type of industrial control device based on a microprocessor, which integrates computer technology, automatic control technology, and communication technology. It has the advantages of simple structure, convenient programming, high reliability, etc., and has been widely used in automatic control of industrial processes and positions. According to statistics, programmable controllers are the most widely used equipment in industrial automation devices. Experts believe that programmable controllers will become one of the main means and important basic equipment for industrial control in the future
PLC, robots and CAD/CAM will become the three pillars of industrial production.
PLC is based on the relay control logic, combined with 3C (Computer, Control, Communication) technology, and is constantly developing and improving. At present, it has developed from small-scale single-machine sequence control to all control fields including process control, position control, and other occasions.

The various types of PLCs used in automation systems are installed centrally in the control room, while others are installed dispersedly on the stand-alone equipment at the production site, although most of them are in the harsh electromagnetic environment formed by strong electric circuits and equipment. However, PLC is a control device specially designed for the industrial production environment. It adopts multi-level anti-interference and selected component measures in the design and manufacturing process, so it has a strong ability to adapt to harsh industrial environments and has high operational stability. Because of its reliability, it can be used directly in an industrial environment without any special measures