Production Process Control System Based On Infrastructure Network For Paper Mill

The infrastructure network technique not only makes the industry production reach.The higher automation level, but also crestes the essential condition for realizing theIntegration of control and administration in the whole enterprise. This paper introducedHow to apply the technique to realistic system, and summed up the experience.Firstly, the article introduced the intranet in brief from the present development, theGeneral reputes and its technique point etc.Immediately after, to form the equipments layer of control system with open,mutual operability, reliability and numeric, the PROFIBUS project was brought forward.The rationality of the project was proved by FCS' advantages to DCS andPROFIBUS'advantages to the other field bus. Based on the analysis, the articledemonstrates the two main advantages of PROFIBUS: applying convenience and busAccess protocol. Through PROFIBUS -DP' application practically,the convenience wasExemplified.The structured design of PROFIBUS system indicated bus access protocol'sAdvantages.Then, to integrate all sub-system or devices into the synthetic system, It wasput.Forward to lead the Ethernet technique into the control network. To solve Ethernet,Real-time, full-duplex switching was adopted and the system' structure was optimized. ToSolve ethemet'reliability; Redundancy technique was adopted and isomer us databases'between control network be adopted. Aim at the network safety problem; put forward theMethods of solution according as factory's condition.Finally, the paper mill's control system adopted the kind of intranet structureMerging industrial Ethernet and Field Bus. The paper introduced the design project and theprinciple of the control system, detailed to expatiate each layer's selection reasons andFunctions in the control system, detailed to expatiate each layer's selection reasons andFactions in the control network.The system has gone to function on Oct 2003. It completely achieves the designRequests.Accordingly, it is showed that the system is advanced and practical.