Discussion on the application of PLC in electrical control
Cao Xia · Qiye jishu kaifa · 2012
In nowadays,programmable logic controller(PLC) has widely applied in electrical control.In addition to press pre-programmed procedures for different logic control,programmable logic controller(PLC) also has the characteristics such as automatic diagnosis,random programming,small volume,good commonality and high reliability.So the programmable controller(PLC) is gradually replaced the control system of relay.