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Addelichtman

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Posts posted by Addelichtman

  1. 1302429877_EIPScanExplicitMessage.jpg.c3821b21bde7a281eb25f9cb229e4912.jpg

    Hello I am trying to send an explicit message to a Unistream PLC as seen above. This picture is made from a third party EIP scanner and works as is.

    The message unlocks a device I am controlling.  Note that the Command is NOT 0x10 but a special command 0x45 I also have to set request data 0xCD.

    So the Adapter's documentation of the message is:

    Service Code: 0x45
    Class: 0x67
    Instance: 0x89
    Attribute: 0xAB
    Data: 0xCD

    The ladder component I use is 'EIP General Explicit Message' as seen below:

     

    1134435759_UnitronicsExplicitMessage.thumb.jpg.f76242655b2cf984bc17b7165a3812b8.jpg

    I send the required 0xCD data via the debugger.

    As you see I get an error -4 which is documented as 'ENIP_WRONG_OFFSET' . I tried several buffer sizes and offsets but none of them gives a correct result.

    Could someone please help me on how to tackle this problem? Thanks! Ad

  2. Hello, could you please advise me on the following:

    I would like to approach the SD card of a Vision 130 PLC .

    We developed a PC program in DELPHI which controls several PLC's via MODBUS TCP.

    This works fine however we would like to have a native module in this program to be able to download files from the SD card (not using the SD card suite).

    Please advise me how to tackle this issue.

    Thanks, Ad

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