Research And Development Of Data Transfer System On OPC

In order to increase the working frequency of device driver, people have taken various measures in developing automatic software. People have been paying more and more attention to OPC technique, because which is provided with the character of high efficiency, reliability, opening, can operating with each other, and plug and play, etc. OPC technique has been popularized and applied quickly, and has become the necessary function for almost all autocontrol equipments from limited several years ago. OPC is a standard of autocontrol software, which is constituted by OPC foundation, and it is a method for transferring real time data of industrial equipment between client programs and server components.My project researched OPC technique thoroughly more, which mainly researched the Specification of OPC DA and just appeared XML-DA of OPC technique, and has developed client program and server program according to the system structure of client/server of OPC. During the process of system developing, the programme language of VC, VB, and .NET has been used according to the requirement of software. At the same time, according the requirement of OPC Specification, COM/DCOM component technique from...