Research On Method And Application Of Production Process Information Integration Based On OPC-XML

With the development of information technology, the integration of production process monitoring system and information management system is essential in the enterprise production process, which can realize information integration and resources sharing, and improve enterprise modern management level. However, the "gap" between enterprise information management and production process is still the bottleneck of the development of many enterprises. How to achieve information integration from the enterprise process control bottom layer to application layer has become an important problem in the process of enterprise information construction. Therefore, research on production process information integration method has theory significance and the practical application value.Based on analyzing present situation of production process information integration methods, a production process information integration method based on OPC-XML was proposed, in which method, a system architecture of B/S mode was designed by adopting Web Service technology to achieve production process data access and processing based on Web Service; according to OPC XML-DA version 1.0 specification, a production process information integration system based on OPC-XML was designed; an OPC XML-DA server and its corresponding client were developed on .NET platform, furthermore, the real-time and security performance of system were researched; finally, this system was applied in production monitoring system of one petrochemical enterprise to confirm feasibility of this production process information integration method.Experimental results show that the production process information integration method based on OPC-XML can achieve the function of data real-time access and remote detection on the bottom layer. It provides foundation for higher-level system integration of the enterprise, and promotes the realization of enterprise-integrated automation. This production process information integration system based on OPC-XML is open and extensible, and it provides a new way for information integration from bottom process control level to top application level.