Based On The Dcs And Fieldbus Integration Of Integrated Management And Control System Design And Implementation

Fieldbus makes enterprise's information network extend to producing sitescene, and it will lead to occur a renovation in control systems. Because of the enormous interests, the trend that has no way out has appeared in making the international standard of fieldbus. Meanwhile, commercial Ethernet based on TCP/IP protocol has permeated through the industry control field gradually. But the end user has to face the choice between the old systems and numerous new technologies. So integrating multitudinous buses and systems to build an integrative network platform for management and control is the most suitable choice to users.To meet this need, the paper has analyzed the course and trend of control systems at first, and has proposed the opinion that control system has been more like a network. On this basis, enterprise's integrative network structure model is established, namely Infranet/Intranet/Internet mode. Infranet is the core of integration. For isomer fieldbus networks, the methods to realize the integration of the networks, controlling and application are propounded. To integrating the Infranet and Ethernet is the key to enterprise's integrative system. OPC technology is adopted extensively to solve this key problem. Traditional system, DCS, still has stalwart vitality. Many methods are given in this paper to combine them together. Fieldbus interface card can integrate FCS into the I/O subsystem module of DCS. They also can realize data exchange through gateway. Or we can interconnect them at upper LAN. Finally, the paper provides the plan of design of the integrated information system of jinan advanced fiber CO.LTD on fieldbus technology. Part of the design have already passed debugging, and stepped into assess operation stage. According to the performance, the system has exerted all strong function of fieldbuses as the bottom information network of enterprises, has optimized the control and saved the cost. The intention to realize the integration of control and management has realized basically.