Some MCGS models allow you to exit the runtime to the raw Windows CE desktop.
Calibration is a delicate process. Interrupting it or performing it incorrectly can leave your HMI in an unusable state. Follow these steps before starting:
MCGS, developed by Beijing Mcgs Technology, is a widely used HMI configuration software in the automation industry. It allows engineers to design intuitive graphical user interfaces (GUIs) for monitoring and controlling machinery.
A common failure mode in resistive touch screen HMIs is "drift," where the physical touch point does not align with the cursor position on the display. This drift arises from mechanical stress, temperature variations, or hardware aging. Touch calibration is the software process of realigning the coordinate mapping to restore input accuracy.
| Action | Key / Gesture | |--------|----------------| | Boot-time calibration | Tap + hold center within 3 sec of power-on | | Boot menu | Tap top-left repeatedly at power-on | | Save calibration | Tap “Yes” or last crosshair | | Cancel calibration | Power off during process |
⚠️ Do not use Windows “Tablet PC Settings” style calibration – MCGS embedded units do not run Windows.
Would you like the exact screen coordinates for manual calibrate.ini editing (advanced), or the procedure for MCGS in WinCE mode (rare)?
MCGS HMI touch calibration is not a mysterious art—it is a straightforward, systematic procedure that every automation technician should master. Whether you are maintaining a legacy TPC series unit or deploying a cutting-edge MCGS Pro panel, understanding how to access the system menu, follow the crosshairs, and troubleshoot common failures will save you hours of frustration and prevent costly downtime.
Remember the golden rules: clean the screen, use the right tool, and back up your registry. When calibration becomes a routine part of your preventative maintenance schedule, your MCGS HMI will deliver years of precise, reliable service.
If you are still experiencing issues after following this guide, consult the official MCGS User Manual for your specific model or reach out to Kunlun Tongda’s technical support team. Happy calibrating!
Last updated: 2025. This guide applies to MCGS Embedded, MCGS Pro, and MCGS Utility series HMIs running Windows CE 6.0/7.0 and newer Linux-based models.
The MCGS (Monitor and Control Generated System) HMI is a cornerstone of industrial automation, known for its reliability and user-friendly interface. However, over time or after a system update, you might find that the touch response becomes inaccurate—where you tap a button, but the system registers the touch elsewhere.
This guide provides a comprehensive walkthrough on how to perform MCGS HMI touch calibration, ensuring your industrial operations remain precise and efficient. Why Does Your MCGS HMI Need Calibration? mcgs hmi touch calibration
Before diving into the "how," it’s important to understand the "why." Touchscreen drift can occur due to:
Environmental Factors: High temperatures or humidity in industrial settings can affect the resistive layers of the screen.
Physical Wear: Constant pressure on specific areas of the screen can cause minor shifts in sensor alignment.
Firmware Updates: Occasionally, updating the MCGS embedded software can reset touch parameters to factory defaults.
System Errors: Software or firmware corruption can lead to unresponsive or "ghost" touches. Step-by-Step Calibration Guide
There are generally two ways to trigger the calibration sequence on an MCGS HMI: via the built-in system menu or through a hardware shortcut during boot-up. Method 1: Using the System Settings Menu
If your touch is still functional enough to navigate the menus, follow these steps:
Access the Main Window: From the operational screen, find the "System Setting" or "Maintenance" button. Locate Calibration: Tap on Touchscreen Calibration.
Choose Precision Level: Most MCGS models offer 4-point, 9-point, or 25-point calibration. For standard maintenance, a 9-point calibration is usually the best balance of speed and accuracy.
Follow the Crosshairs: A series of target symbols (+) will appear on the screen. Use a stylus (preferred over a finger for accuracy) to press the exact center of each target.
Save and Exit: 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)
If the screen is so misaligned that you cannot press the "Settings" button, you need to force the calibration tool to launch at startup: Power Down: Turn off the power to the HMI. Some MCGS models allow you to exit the
The "Long Press" Trick: Most MCGS HMIs will enter calibration mode if you press and hold anywhere on the screen while turning the power back on.
Release and Calibrate: Hold until the calibration crosshair appears, then proceed with the point-by-point process described in Method 1. Tips for a Perfect Calibration
Use a Stylus: Using your finger can be imprecise due to the surface area of your skin. A plastic stylus ensures you hit the dead center of the target.
Clean the Screen: Before starting, ensure the screen is free of grease, dust, or chemical residue, as these can interfere with touch sensitivity.
Check for Physical Interference: Ensure the HMI mounting frame isn't pressing too tightly against the screen edges, which can cause constant "phantom" inputs. Troubleshooting Persistent Issues
If your MCGS HMI still fails to respond correctly after calibration, the issue might be deeper:
Hardware Failure: If the screen doesn't respond to any touch, the digitizer may be physically damaged.
Calibration Loop: If the HMI keeps asking for calibration, the internal memory (EEPROM) that stores the calibration data may be faulty.
Control Panel Settings: If you are using an MCGS HMI connected to a PC environment (like Windows 10/11), you may need to use the Windows Tablet PC Settings in the Control Panel to reset the touch input.
By following these steps, you can restore the precision of your MCGS HMI, preventing costly operational errors and extending the life of your equipment.
How to Calibrate the Touchscreen in Windows 11 and Windows 10 - Dell
To calibrate an (TPC series), you must access the boot-level setup menu during the power-on sequence. This process aligns the physical touch panel with the visual display coordinates to fix offsets or unresponsive areas. 中国工控网 Calibration Procedure Calibration is a delicate process
Follow these steps to initiate and complete the touch calibration: Enter Boot Setup Cycle the power to the HMI (24V DC). During boot-up, a progress bar will appear with a
Immediately tap anywhere on the screen with your finger or a stylus to enter the Boot Setup interface. Initiate Calibration Once in the setup interface, wait approximately 30 seconds
without touching anything; the system will automatically launch the calibration utility. Target Alignment crosshair (+) cursor will appear on the screen.
Use a touch pen or finger to press firmly and precisely in the of the crosshair.
Hold until the cursor moves to the next position, then lift.
Repeat this for all points (usually 4 or 5 points covering corners and center). Save and Exit Once finished, a message stating "The new calibration settings have been set" will appear.
Tap the screen once more to exit the utility and boot into the standard engineering or operation interface. 中国工控网 Troubleshooting & Maintenance Recommended Action Drifting Cursor
Re-run calibration using a precise stylus rather than a finger for better accuracy. Unresponsive Screen
Clean the surface of debris or moisture before calibrating. Check for physical damage to the touch glass. Ghost Touches
Ensure there is no electromagnetic interference nearby and check that the HMI is properly grounded.
For completely dead touch input:
To understand calibration, one must distinguish between two coordinate systems:
The goal of calibration is to find a transformation matrix that converts Physical Coordinates $(X_p, Y_p)$ into Logical Coordinates $(X_l, Y_l)$.
In MCGS configuration software, calibration can be initiated programmatically. The system provides built-in functions to trigger the calibration interface without navigating complex menus.