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-   -   2 questions regarding WinCC & S7 (http://www.plctalk.net/qanda/showthread.php?t=32893)

mi91240 August 14th, 2007 01:11 PM

2 questions regarding WinCC & S7
 
I am learning S7 & WinCC. I have two question regarding WinCC & S7.

1) WinCC how communicate with S7. In our plant S7-414H PLC and WinCC HMI have been used. If in WinCC no data is coming from S7 then which network diagram i need to check in S7? What is the interval of S7 sending data to WinCC ?

2) WinCC & OPC how they communicate each other?


Doug_Adam August 14th, 2007 07:48 PM

1, Your choice of MPI, Profibus or Ethernet. You have to add the Siemens protocol suite to the tag management section of your ptoject.
2, I haven't needed to use the OPC part yet, but if you want to export information from WinCC to something else, you can setup WinCC as an OPC server.

MorphuisOGrady August 15th, 2007 03:29 AM

What communications driver are you using for a start?


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