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Old August 14th, 2007, 01:11 PM   #1
mi91240
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Tech 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?

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Old August 14th, 2007, 07:48 PM   #2
Doug_Adam
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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.
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Old August 15th, 2007, 03:29 AM   #3
MorphuisOGrady
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What communications driver are you using for a start?
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