Technology And Application Of Realtime Database Based On OPC

According to users' requirements in the project of enterprise integrated automation from Yansan Simulation Center,one for enterprise information integration platform, the other for co-operation in systems of different structre,the paper introduces briefly the basic conceptions and characters of realtime database and makes studies at the application of Infoplus.21,one famous realtime database system from Aspen. And that accomplishes the needs of former designs.After reference of popular theory and technology,the paper takes the most advanced component communication standard-OPC(OLE for Process Control).OPC is provided as a uniform standard for industrial software facing object developments solve the communication problems between the application software and kinds of device drivers.It could separate software developer from hardware driver,So greatly promotes the working efficiency.The paper recommends structures of COM,and uniform interfaces of OPC objects.It also provides how the configuration of data access in Infoplus.21 is completed.Also it includes the total design structure of OPC SERVER ,and then completes the code for in-process server.Finally the server is successfully tested.