Design of PLC Control System and Measures for Its Reliability
Jianping Liu · Electric Switchgear · 2007
For the work characteristics of PLC control system, the main structures of this control system are introduced.The basic principle of PLC type choosing is discussed.Several measures to resist its intereference of input and some method of ground for PLC are investigated,the measures can enhance the reliability of PLC system,it is practicable for kinds of control systems with PLC