This paper analyses the character of controlling system of Motor based on the network control structure of Rockwell Automation s three-layer network,it analyses hardware and software of system by connecting system.

The research depends on the three-layer network platforms of Rockwell Automation laboratory in China Jiliang University.

Analysis of Modbus Plus industrial network for process control applications;

This article introduces several models about industrial networks real-time problem,in-depthly analyzes the models and expatiates various elements to satisfy the demands of networks real-time characteristics,which will benefit us in analyzing networks real-time problems in different industrial control systems.

In view of the fact that industrial network control laboratory devices are general lacking,this paper raises a design proposal of the industrial network control laboratory table based on Fieldbus.