Control system structure The system adopts SIEMEN S7-20…
From the 1980s to the mid-1990s,PLC was the fastest gro…
There are many definitions of PLC.The International Ele…
After the personal computer(referred to as PC)was devel…
In the process of industrial production,a large number …
PLC programmable controller:PLC full name in English is…
The application field of PLC is broad,and there are sti…
The upward connection of the network is an Internet pro…
In 2001,my country’s machinery industry became a …
In recent years,PLC manufacturers provide the basis of …
One or several PLCs and PCs are connected to the system…
In terms of structure,PLC is divided into two types:fix…