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OPC是一种连接硬件装置或软件数据库等数据源与过程控制客户应用程序之间的标准化的接口协议,为水电厂实时监控系统与PLC或控制器之间数据传输提供一条高效、可靠的新途径。本文首先对OPC技术进行介绍,然后介绍了H 9000水电站实时监控系统如何与ABB公司OPC服务器的客户端软件的联接,该客户端软件可支持采用 OPC标准的所有产品。
OPC is a standardized interface protocol for connecting data sources such as hardware devices or software databases to process control customer applications and provides an efficient and reliable new way for the hydropower plant to monitor the data transfer between the system and the PLC or controller in real time . This paper first introduces the OPC technology and then introduces how the H 9000 real-time monitoring system of hydropower station can connect with the client software of ABB’s OPC server. The client software can support all products adopting OPC standard.