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    Incorrect or unresolvable MES messages

    Incorrect or unresolvable MES messages

    PKlein
    Long-established Member

    In our plant we often have the problem that we have incomprehensible MES error messages on the HMI and the operators then don't know what to do.

    Example:

    PKlein_0-1662619206772.png

    Unfortunately, the operator cannot do anything with this type of error message!

    The response from the MES is a bit clearer to understand.

    PKlein_1-1662619268389.png

    What is also very interesting is that the error code from MES has the number 800111021. But at the HMI the Error-Code 100020187 is shown.

    If I look for the error code in the NxMesBase I also find this error text.

    PKlein_2-1662619525682.png

    Now my question, why is the error message issued by the DDLV4MessageFB of the OpconTcpDDL library incorrectly displayed?

    Does anyone have the same experience and found a solution here?

     

     

     

    3 REPLIES 3

    SteffenR-
    Community Moderator
    Community Moderator

    The error "protocol error" (100020187) means that the MES response does not meet the specified/parametrized response.

    As far as I now there is an option to always send a full response to the PLC with empty strings and value 0. I am not sure if this option on MES side is only available in case of MES errors (in your case you get just a MES warning).

    In your case the whole body (probably body items) is missing. Therefore the PLC behaviour ("protocol error") is correct.

     

    PKlein
    Long-established Member

    I spoke to my MES colleague. He checked his MES config.

    This value is set in the config!

    PKlein_0-1662625427854.png

    We also checked the docu for this parameter:

    \\bosch.com\dfsrb\DfsDE\DIV\BCI\Nexeed\MES\Public\Docu\DirectDataLink\Communication.Xml_UserManual_DE.pdf

    The parameter is not described, but is still present.

    PKlein_2-1662625608188.png

    So the behaviour of the DDL-Service does not work like it is configured!

     

    SteffenR-
    Community Moderator
    Community Moderator

    Thanks for the details, this topic will be investigated by our MES team and Helpdesk.

    Either this parameter has no effect in case of MES warnings (in your MES response there is only a warning, no error), or this parameter does not work in combination with the MES module SetupControl.

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