Research And Development For The OPC UA Server's Data Management And Subscription

As the development of Information Technologies, the more distributed systems were introduced into business and industrial fields. At the same time, the requiring of sharing the information makes the traditional OPC which based on the technology of COM/DCOM hard to meet. Under this condition, the OPC Unified Architecture which followed the Service-Oriented Architecture was announced as the answer to solve the problems above. This paper focuses on the OPC UA specifications in the subscription and monitoredItem services set on research and programing implementation, while leveraging Microsoft's WCF (Windows Communication Foundation) application to achieve some goals of Subscription and Data Managemnet.