摘要
本文首先介绍了OPC数据存取接口的的标准,然后介绍了异步方式实现数据存取的详细步骤,最后实现了在Visual C++环境下通过OPC接口读写WinCC中的实时数据。文中介绍的方法可以解决企业管理网与控制网相结合的难题。
The standard of OPC Data Access interface is introduced in this paper.In this paper,the steps of development process of OPC client is also described in detail.At last, the implement of OPC client of WinCC is introduced.The combination of Visual C＋＋ and WinCC can realize Integration of management systems and control systems.
关键词
OPC
WINCC
异步接口
管控一体化
OPC
WinCC
Asynchronous
I/O
Management and control integration
