The System Design And Network Management Of Industrial Ethernet For Control

Ethernet,the most popular Local Area Network(LAN) structure,has obvious advantages such as open,cost-effective,supported by many popular hardwares and softwares.In recent years,Ethernet has been entering the markets of industrial automatization and process control from different ways,moreover it has been used in a wider field.The fast development of the Intranet/Internet calls for complete and seamless information integration from field control level to management level in enterprise,for which Ethernet has the potential.The tipical model of Ethernet is Ethernet+TCP/IP,that is Ethernet can be easily integrated into information network represented by the technology of Internet and Web by using flexible Ethernet physical layer pluses TCP/IP.With the resolving of the technical problems such as real-time,interoperation.etc,Ethernet is gradually developing deeper toward field control level and managing to amalgamate with other forms of network.In this thesis, by comparing the Ethernet based industrial control with traditional field bus, we've discussed some key issues related to Ethernet: the applications of Ethernet in control field,the design and construct of the control network system,the function of network management and how to realize it,the integration technology for control network and information network.etc.In chapter one,we've briefly introduced field bus,the advanced industrial control network.Contrapose to the problems exsist in field bus,we've discussed the application and status of industrial Ethernet in chapter two.Combined with the development of Ethernet,in chapter three,we've brought forward a kind of Ethernet structure and a design project for Ethernet controller,the key equipment in Ethernet.We've also analysed how to resolve the uncertainty of the traditional Ethernet which affected its industrial application.In chapter four we've talkedabout how to realize network management system based on SNMP and WEB technology,which includes its structure,function and programming model.We've discussed the technology of Ethernet integrating with other network in chapter five,which consisted of both integrating with information network and control network..In the last chapter we've analyzed the application project of Ethernet in control field through practical case.