一个老外给我回复推荐了几种方法:
I dont think Kepware has an OPC server for Profibus to an S7 PLC. They have for MPI (via PC adapter) and for ethernet TCP/IP.
Look at this site for help on how to program an OPC client in C#:
http://www.opcconnect.com/dotnet.php#clients
This site has a direct driver .net component for MPI and Ethernet TCP/IP:
http://www.indi-an.de/index.php?opti...id=2&Itemid=69
Deltalogic has a series of direct drivers, also for Profibus via a Siemens CP:
http://www.deltalogic.de/content/view/21/38/lang,en/