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USP-156-X10 : HMI stop responding to touch

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I have 2 USP-156-X10 with CPU attached. Sometimes the HMI does not respond to touch. If I remove power and reconnect, it is working OK. Is there a reason for this? Is there any shortcut to restart onlly HMI? The PLC cannot be restarted due to application.

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  • 2 weeks later...

Sorry for late reply: Yes there is hih powers controlled with triacs and thyristors, etc (VFD, UPS, UV-ballasts). I thought maybe this might be a problem yes. My actions is either flanks or buttons with press=set bit, release=reset bit


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