Reboot the HMI while pressing and holding the screen corner to enter the boot menu. Select the "Touch Calibration" utility.
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Note: Embedded Edition 6.8 supports desktop placement if the project name itself has no spaces mcgs hmi manual hot
A: The LED backlight driver is usually located at the top or bottom edge. This is normal but excessive heat indicates failing backlight LEDs. See manual section "Display Module Replacement."
If your HMI feels excessively warm to the touch (exceeding on the rear casing) or is showing "System Over Temperature" warnings, you need to consult the Hardware Manual's "Environmental Specifications" section immediately. Reboot the HMI while pressing and holding the
This "hot corner" bypasses the running project and allows you to calibrate the touch screen, change the IP address, or update the firmware. Keep this manual trick in your back pocket.
: Device window shows "-8" communication status, the screen cannot read/write PLC data This is normal but excessive heat indicates failing
Check the hardware communication cable pinouts (RS-232/RS-485 wiring diagrams differ by PLC manufacturer).
Right-click your main operation screen and select "Properties."