The Research And Development Of OPC Technology In Enterprise Information Integration

OLE (Object Linking and Embedding) for Process Control (OPC) is an open industrial-standard that is defined by a number of leading automation hardware and software suppliers working in cooperation with Microsoft. It defines an open industrial interface based primarily on the Component Object Model (COM) technology that provides interoperability between disparate field devices, automation/control, and business systems. OPC Firstly is a kind of technology by which application programs exchange their data. To begin with describing communication styles between processes in chapter one, the author analyses the concept of OPC technology and benefits that OPC brings to us and situations that OPC is fit for. Then the author at length discusses several OPC specifications released by OPC foundation. Finally the author introduces OPC compliance testing and OPC interoperability testing, as well as the application and popularization things of OPC technology.How OPC is widely used to integrate enterprise information is studied in chapter two. OPC is used not only to realize integrating information between layers within enterprises, but also to realize exchanging information between enterprises and external environment, OPC can supply all-sided solutions for integrating enterprise information.The main subject of this paper is the development and research of OPC technology in enterprise information integration. The development of OPC technology is discussed in chapter three and chapter four. In chapter three, the main attention is focused on a rapid development toolkit for OPC——SuperOPC, that is developed by the author.How to develop OPC client programs is studied in chapter four. The author introduces two styles of OPC client's communicating with OPC server, then particularly discusses the design of sinks.In the last chapter of this paper, OPC technology work that the author studied and project work that the author fulfilled in is summarized. At last the development of OPC technology and the application of OPC technology in our country are expected.