The QT HMI sometimes gets frozen. You You might see an error message like the examples below.
If you are using the Windows computer for QT HMI at the control room, you should first close and open the remote viewer, "Sm@rtClient". It it doesn't help, you should restart the QT HMI, as explained below.
Example #1 | Example #2 |
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December 18, 2023 | July 11, 2024 Normally, the error display would show: "Application HmRTm.exe encountered a serious error and must shut down". |
How to Restart QT HMI (not PLC)
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