Use a blunt, non-abrasive tool (like a standard stylus or your finger) to precisely press the center of the crosshairs or dots as they appear. They will usually appear in all four corners and the center of the screen.
Before starting, ensure the screen is free of grease, dust, or chemical residue, as these can interfere with touch sensitivity.
| 常见现象 | 可能原因 | 排查与解决方法 | | :--- | :--- | :--- | | | 软件卡死、驱动异常、触摸控制IC损坏 | 1. 带电状态下长按"重启"键或断电30秒后重启。 2. 外接鼠标进入设置，检查触摸类型配置（电阻/电容）是否与硬件匹配。 3. 若硬件损坏，需联系供应商维修或更换触摸屏。 | | 校准后仍偏差较大 | 校准点击不精确、驱动程序不兼容、屏幕表面有异物 | 1. 清洁屏幕，去除油污或水渍，避免在校准过程中移动触摸屏。 2. 重新运行校准，确保每次点击都垂直按在十字光标的中心点。 3. 更新MCGS驱动程序至官网最新版本。 | | 部分区域触摸不准确 | 声波式触摸屏边缘积灰、显示屏老化 | 1. 清洁触摸屏 四周的声反射条纹 （注意先断电）。 2. 若清洁后无效，可能是触摸层物理损坏，需返厂维修。 | | 触摸完全无响应 | 信号排线松动、触摸玻璃破损、供电异常 | 1. 检查TPC与PLC/控制器之间的通讯线（USB/串口线）是否插紧。 2. 用万用表测量24V DC供电电压是否稳定（允许±10%波动）。 3. 查看触摸屏与主板的连接排线是否氧化或断裂，重新插拔或更换。 |
Click the Recalibrate button to start the alignment utility. Step-by-Step: Executing the 4-Point or 5-Point Calibration mcgs hmi touch calibration
Most MCGS HMIs run a Windows CE (or Embedded) operating system underneath the MCGS Runtime environment. Therefore, calibration is typically handled by the , not the MCGS software itself.
Within the settings menu, look for an option titled "Touchscreen Calibration," "Calibrate Screen," or similar.
In rare cases, you can force recalibration via MCGS script commands. Use the !SetCalibration() or !TouchCalibrate() function in a Macro or Run Script. However, this requires the HMI’s operating system to expose these proprietary API calls. Disclaimer: Use only with manufacturer documentation. Use a blunt, non-abrasive tool (like a standard
Perform a factory reset via the dip switches on the back of the HMI, then retry calibration.
Before diving into the "how," it is essential to understand the "why." Resistive and capacitive touch screens operate on different principles, but both are susceptible to environmental and mechanical factors.
Keep the stylus down until the crosshair blinks or moves to the next corner. | 常见现象 | 可能原因 | 排查与解决方法 | |
Open the button properties and navigate to the tab. Enter the system function for screen calibration: !TouchCalibrate() Use code with caution.
Comprehensive Guide to MCGS HMI Touch Screen Calibration An unresponsive, drifting, or inaccurate touch screen on an MCGS (Beijing Kunlun Tongtai) HMI can stall your entire production line. Over time, industrial environments cause touch sensors to lose alignment with the underlying LCD pixel grid.
Once all points are touched, an "OK" or "Calibration Successful" message will appear. The system will then apply the new parameters and return to the main interface. Method 2: The Hardware Shortcut (Force Calibration)
Method 3: Programming a Calibration Button in MCGS Embedded Software
Occasionally, updating the MCGS embedded software can reset touch parameters to factory defaults.