the unit while keeping your finger pressed firmly on any part of the touch screen Continue holding until a system startup menu or a white screen with a crosshair appears. Follow the on-screen prompts to touch the center of the calibration targets (usually five points). Method 2: Software System Menu
During the initial 3-second boot window of the HMI, tap the corner of the screen (usually the top-left or top-right) to bypass the user project and enter the MCGS System Start Properties menu. Step 2: Navigate to Touch Calibration Select the or "Sys Setting" tab.
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Flashing a new runtime environment or updating MCGS Embedded Software can sometimes reset factory coordinate maps. Method 1: Hardware-Based Calibration (Before Boot) mcgs hmi touch calibration
Once the calibration utility activates, the screen will turn white and display a small crosshair target (usually a + symbol).
Replace the internal CR2032 button cell battery on the HMI mainboard, or re-flash the firmware using a USB drive. The Calibration Target Loops Infinitely
Use the following system function call (exact syntax depends on your MCGS software version, such as MCGS Pro or MCGS 7.7): !TouchCalibrate() Use code with caution. Or via the standard system command path: _SysCommand("TouchCalibrate") Use code with caution. the unit while keeping your finger pressed firmly
: Once you have tapped the screen, wait approximately 30 seconds . The system will automatically enter the touch screen calibration utility. 2. Executing the Calibration
| Problem | Likely Cause | Solution | | :--- | :--- | :--- | | | You tapped too far off-center or used the wrong tool. | Restart the HMI and recalibrate, tapping the exact center of each crosshair. | | Calibration menu won't appear | The touch area for the hidden menu may also be misaligned. | Use a USB mouse. Plug a standard USB mouse into the HMI’s USB port. Use the mouse to click the top-left corner and access the system menu. | | Screen unresponsive after calibration | Calibration data corrupted. The driver cannot map touches. | Perform a hard reset (if a physical reset button exists) or re-flash the firmware. Otherwise, connect a mouse and delete the calibration registry keys (requires advanced WinCE knowledge). | | Only half the screen works | Physical digitizer failure or loose ribbon cable. | Hardware repair needed. Calibration will not fix this. | | Calibration works, but drifts again after 1 hour | Overheating or strong EMI (electromagnetic interference). | Check HMI ventilation and reroute power cables away from signal wires. |
If your touchscreen continues to have issues after calibration, you may want to check if the panel itself needs a or if there is a hardware defect , such as a faulty overlay, that requires professional repair. Step 2: Navigate to Touch Calibration Select the
This is the most common method and should be your first line of defense. It does not require any external tools or programming software.
In the world of industrial automation, the Human-Machine Interface (HMI) serves as the critical bridge between operators and complex machinery. Among the most popular and reliable HMI brands on the market is — a product of Beijing Kunlun Tongda Technology. Renowned for their cost-effectiveness, robustness, and versatility, MCGS HMIs are found in manufacturing plants, energy management systems, environmental monitoring stations, and countless other industrial applications.
The Ultimate Guide to MCGS HMI Touch Calibration: Fixing Unresponsive Screens
However, like any touch-based device, MCGS HMIs can drift over time. A button that used to respond perfectly might suddenly require a firmer press; a numeric keypad might register a "5" when you touched "6." This phenomenon is known as , and it is rectified through a process called touch calibration .