Fieldbus And Industrial Ethernet In Research And Application Of Multiple Nodes In The Control System

Today, with rapid development of information technology, since the growth and competition of all kinds of FieldBus, infiltration and application of all main computer technology into the industrial field together with inheritance and extension of automation technology development, FieldBus is growing into a network-oriented and digital way nowadays. Enterprises also eager to owe an internal IT network which is extended into on-site production and linked with controlled network. Meanwhile, the network should go well with the Internet to create a network structural model with integrated system of new enterprise management and control. The research of FieldBus and Ethernet offers a foundation for the realization of integration in the enterprise. The integration of FieldBus and Ethernet is the important point of integrated system in the enterprise. So the article makes magnificent introduction of the integration of FieldBus and Ethernet. Also it makes introduction of SIMATIC PROFIBUS and SIMATIC PROFINET in Siemens in detail.After introduces some typical kinds of FieldBus together with analyses and compares the advantages, prospect and development with other technologies, I conclude the theoretical foundation of why to choose SIMATIC PROFIBUS and SIMATIC PROFINET. Besides, through some projects, the controlled network system is established based on SIMATIC PROFIBUS and SIMATIC PROFINET, and the way of realization of this technology is introduced. analyzes the integration of Ethernet based control system of the multi-technology, multi-protocol and multi-system control integration, the establishment of the control based on SIMATIC NET network model, access to the PLC system and fieldbus technology, industrial Ethernet technology Integration method, and the World Expo in Shanghai, General Motors Pavilion for the application.The SIMATIC systems of products in SIEMENS are used in whole project. The planes which combine with technologies of SIMATIC ROFIBUS and SIMATIC ROFINET achieved integration of management and control. By using STEP7,WINCC,PRODAVE soft wares also achieves the programmer network,configuration of soft and hard wares,monitoring groups,components as a group of states, data sharing of project. The system fully brings a powerful foundation in which FieldBus is regarded as bottom IT network of a company. At the same time, it makes domination better, saves the cost, let the system operated smoothly and achieved the goal of the integration of monitoring.