With the continuous development of computer control technology, the application of programmable controller has been widely popularized and become an important part of automation technology. Programmable controllers first appeared in the United States. In 1968, General Motors (GM), an American automobile manufacturing company, put forward the requirements for developing a new controller, and p...
The application of PLC has become mature and can adapt to various industrial control and process control. The classification of PLC is slightly different. Today, I take AB PLC as an example to classify according to the size of the system. 一、 AB PLC is mainly divided into three categories by type: Small: Micrologix controller Medium: CompactLogix controller Large: ControlLogix control...