WinCC内部函数SetLink可修改变量链接
比如静态文本直接关联输入输出域IO1的输出值
LINKINFO linkinfo;
linkinfo.LinkType=1; //Direct Tag
linkinfo.dwCycle=0; //Upon Change
strcpy(linkinfo.szLinkName,GetPropChar(lpszPictureName,lpszObjectName,"text"));//Tag Name
SetLink(lpszPictureName,"IO1","OutputValue",&linkinfo);
参考:
http://www.ad.siemens.com.cn/club/bbs/post.aspx?b_id=5&a_id=645575&s_id=0&num=1