【摘要】 ＯＰＣ 技术是ＯＬＥ 技术在过程控制中的应用，它为开发应用程序的不同厂商提供了一项共同遵循的通信标准，从而大大减少了在系统集成过程中的重复开发，并提高了控制系统的性能。ＯＰＣ 代表了今后一段时间内过程控制系统通信标准的发展方向。更多还原

【Abstract】 In traditional way, data access between smart devices as well as smart devices and process control software is implemented through drivers. Since driver vendors adopt different data exchange standard, the burden of driver development is very heavy. With adoption of OPC, hardware vendors offer universal OPC custom interface, and software vendors can focus their energy on their specialty and develop automa tion software of higher performance and softwares from different vendors will be integrated easily.更多还原