HE Xi-ku
Abstract
OPC standard is based on Microsoft's OLE、COM and DCOM technology required by the function of software interface standard,OPC is the software interface standard between data sources(OPC server)and data users(OPC application).This paper introduces the principles of OPC,and presents the design of the OPC client by using Visual C++.
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OPC standard is based on Microsoft's OLE、COM and DCOM technology required by the function of software interface standard,OPC is the software interface standard between data sources(OPC server)and data users(OPC application).This paper introduces the principles of OPC,and presents the design of the OPC client by using Visual C++.
Key concepts: OPC Data Access, Distributed Component Object Model, Computer science, Operating system, Software, Interface (matter), Component Object Model, Visual Basic