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  1. #1
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    s7 ppi ocx

    Hi

    How we can interface (in delphi) with the S7-200 PLCs (read inputs and outputs ,....)?

    Can we develop modbus in PLC on the DP Ports?How?

    Thank you

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  2. #2
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    siemens s7 plc <-> delphi

    I think that you should find, first of all, an OPC server. Then, you can program your application, scada, datalogger, etc with a OPC client.

    If you need information for OPC : www.opc.org

    If you want to access to all the PLC memory, you need a interface who can support s7 protocol.



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  3. #3
    Advanced Member level 4
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    opc server s7 delphi

    OPC is a good choice,Where I can find the opc sever for s7-200 and 300?
    Is there a delphi component for interfacing to S7-PLC ?



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  4. #4
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    opc delphi s7 200

    Hi

    I agree about the OPC server but not the link, I get to this place:
    Orthodox Presbyterian Church (OPC) perhaps usefull to some but not when dealing with Siemens.

    http://www.opcconnect.com/freesrv.php

    Cl



  5. #5
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    komunikacja delphi s7-200

    There are a lot of OPC servers. Siemens has all in "Simatic net" Cd. Im using it with an ethernet, but i used it with Profibus DP network, but with Visual C++ and Visual Basic. Simatic net cames with a OCX, if you can use OCX with Delphi, you are done. Apart from that, you can use National Instrumens Datasocket, is a OPC client too.



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  6. #6
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    delphi s7-200

    Hi,

    you will find Borland Delphi Interfaces for SIMATIC NET at

    www.SoftwareOption.de (link -> "Produkte", then switch to english text).

    There you can download trial versions directly.

    Carsten



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