Based On OPC Technology Water Treatment Control System's Research

With the rapid development of science technology,traditional computer monitoring and control system has not been suitable for the requirements of the development.This is because different equipment manufacturers in the field of communication mechanism is not same,computer monitoring software need to develop communication driver device also more and more, the system upgrades and migration are not easy. The COM-based technology generation and application of OPC technology, completely changed this situation, it is for process control and industrial automation provides a set of standard interfaces, properties and methods, OPC for the automation system between the various different applications provides a standard data exchange, access mechanism, to manufacturers and users to bring convenient, fast and better value for money.OPC (OLE for Proeess Control) is Microsoft's Object Linking and Embedding technology in process control applications for industrial automation software provides a standard data access mechanism. Makes the field device in whatever form, customers in a uniform way to access in order to ensure the transparency of the software to customers.In this paper, OPC technology as the core, to water plants water treatment system to study the background, in-depth study of COM technology and OPC data access specification, based on the right OPC server object and the client to achieve the means to research and development, based on OPC technology The water monitoring software design and development. Designed monitoring software based on OPC technology, OPC server with a variety of connection, and can read and write data from OPC servers operate, enabling the monitoring software with a variety of on-site control equipment, data transmission.