摘要
介绍了基于COM的OPC技术、OPC的工控体系结构和OPC数据存取规范的定制接口,分析了OPC数据存取规范的自动化接口对象模型.以OPC数据存取自动化接口规范(2 0)为蓝本,给出了利用Excel的VBA实现一个趋势图的应用程序的详细步骤和具体程序.
OPC technology is a hardware and software interface standard in the industry control system. The technology of OPC based on COM, general construction of industry control system and OPC data access custom interface standard are put forward in the paper.The object model of OPC data access automation interface standard is introduced.On the basis of OPC data access automation interface standard(2.0),the detailed procedures and demo programs to realize a trend OPC application program based on Excel′s VBA are presented in the end .
出处
《桂林工学院学报》
2004年第3期356-359,共4页
Journal of Guilin University of Technology
基金
广西区自然科学基金资助(桂科基0236065)
广西区教育厅资助项目(桂教科研[2003]22)
