: Facilitates the backup and restoration of HMI project data via USB connection. Device Management
Compile your project inside MCGS Pro to a generic USB flash drive. Insert the flash drive into the HMI's USB Host port. Use the HMI boot menu to copy the project locally.
When you install the programming software, the drivers are placed in a specific subfolder. Look for them in these directories: mcgs hmi usb driver
Look for a dip-switch on the back of the HMI labeled "Download" or "Run" and ensure it is toggled correctly.
Once you install MCGS Pro or MCGS Embedded on your PC, the driver files are extracted to your local drive. Check these common installation paths: C:\Program Files (x86)\MCGS\MCGSPro\Drivers\ C:\Mcgs\McgsUsbDriver\ 3. How to Install the MCGS USB Driver manually : Facilitates the backup and restoration of HMI
: Enables the direct download of monitoring and control programs from a PC to the HMI. Data Backup
| Error Message / Symptom | Most Likely Cause | Solution | | :--- | :--- | :--- | | "Device Descriptor Request Failed" | Bad USB cable or port. | Replace cable (many cheap USB cables are charge-only). Use rear USB port on PC. | | "This device cannot start. (Code 10)" | Driver conflict or corrupted INF. | Uninstall all USB composite devices in Device Manager. Reboot and reinstall driver. | | "Windows requires a digitally signed driver" | Driver signature enforcement on Win10/11. | Disable enforcement (see Part 6). Or use a newer signed driver from MCGS support. | | "No available port found" in MCGS software | Driver installed but COM port not assigned. | In Device Manager, right-click the MCGS device → Properties → Port Settings → Advanced → Change COM port number (e.g., to COM2-COM8, avoid high numbers). | | "Timeout during download" | HMI is in Run mode, not Stop/Download mode. | Power cycle HMI. During boot, tap the screen or press the download button (varies by model). | | "USB device not recognized" after Windows Update | Windows Update replaced your driver. | Roll back driver in Device Manager. Then block automatic driver updates via Group Policy. | Use the HMI boot menu to copy the project locally
Never use test mode on production control PCs unless absolutely necessary. It weakens security.