If your touch screen still works well enough to navigate, you can launch the calibration utility directly from the built-in operating menu.
Use a plastic stylus or your fingernail to press the exact center of the crosshair. Hold it down until the crosshair moves. mcgs hmi touch calibration
For MCGS TPC series HMIs, calibrating the touch screen is a straightforward process that typically happens during the boot sequence or through the system settings. This is essential if the touch points are drifting or the screen becomes unresponsive. If your touch screen still works well enough
: If the calibration fails or the unit remains unresponsive, check for common issues like improper shutdowns or power failures that may have corrupted the firmware. For MCGS TPC series HMIs, calibrating the touch
The screen will change to a specialized calibration interface (often a black or blue screen with a small crosshair or a colored dot).
Extreme temperatures, electrical interference, or aging hardware.
To prevent electromagnetic interference from causing erratic touch behavior, ensure that your HMI and the control panel it is mounted in are properly grounded according to the manufacturer's specifications. When Calibration Fails: Troubleshooting HMI Hardware Issues