The Design And Implement Of The Process Control System Intergration Scheme Based On PLC And DCS

The Application of the Computer. Automation Control. FieldBus and Network Information technology in the Plant Field, makes the domain of the automation changing much. The development of the controllers technology changes from logic to synthesis, from single machines to network. In the implementation of the given project,we need to select the appropriate controllers, the appropriate network and configuration software according to the condition to suit to the needs of the Automation Control System IntegrationAccording to the requirement, this article first analyzes the feature of current process control system, the hanrdwre S7-300PLC and the software Windows2000+ wincc6.0Sp3+ Sqlserver2000 was selected as the Automation Control System of the Brewing and the Hollysys Macsv hardwre and software was selected as the Automation Control System of the ferment, that adapts to the integrative network structure of the control and information system.In the process of the Euipments of DCS and PLC access to the intranet and internet,OPC technology is the means to solve the key problem. The traditional DCS was used much more, DCS and FCS integration have more market space. DCS and PLC can exchange data over network gateway, or in the LAN of the top layer of the DCS...