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    HMI mode suddenly switches to "manual" or "homing".

    HMI mode suddenly switches to "manual" or "homing".

    CoolA
    Member

    The machine is running, the mode suddenly switches to "manual" or "homing".

    It's a very weird situation

    No program was written to switch modes

    OES:4.11.1

    AAA.PNG

    6 REPLIES 6

    Thorsten_Brach
    New Contributor

    Do you use a mPad as HMI device ?

    If so, please check that you are using the latest version of the mPad holder...
    There was a problem once,  that the holder affected the touchscreen and then touch-events were triggered sporadically...

    Maybe this is the case and the sporadic touch-events switch the operating mode...

    For a test, you can remove the mPad from the holder
    and place it next to the station and observe whether the problem still occurs.

    Thank you for reply!

    HMI device not mpad,Just Touch screen only

    The first possibility, Others operate the HMI from remote software

    The second,  Perhaps the HMI Runtime file is corrupted, Need Brush the HMI runtime?

    nexidator
    Community Moderator
    Community Moderator

    Is it just the mode displayed in the HMI that changes or is it really the operating mode of the PLC program?

    If the HMI shows wrong states that do not match the PLC, it usually helps to Activate the TwinCAT configuration, download the PLC program and restart the HMI afterwards.

    the problem with the touch events is only known for the mPad,
    that such a problem exists with other touch screens is not known to us.

    If the HMI files were corrupted, then the HMI would most likely not work at all - furthermore,
    the touch events come from the operating system to the HMI software,
    so the HMI software cannot be the problem....

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