opc server / client develop kit 资料 http://www.intellution.com/opchub/opcsample.asp (VC) http://www.prel.co.uk/opc/ (收费) (delphi vcl) http://www.win-tech.com/html/opcstk.htm (收费) (VB/VC) 参考网站 http://www.opcfoundation.org/ http://www.opcconnect.com/delphi.shtml http://www.achat-solutions.de/