Windows will locate the .inf file, verify the driver, and complete the installation. 4. Troubleshooting Common Connection Issues
Click Next . Windows will install the driver files. Once finished, the yellow exclamation mark will disappear, and the device will display as a recognized communication link (often mapping to a virtual COM port or a specific USB device class). 4. Common MCGS HMI USB Connection Issues
The MCGS USB driver may seem like a minor component, but it plays a pivotal role in the efficient operation of industrial automation systems. By understanding how to correctly download, install, and troubleshoot this driver, you ensure that your HMI projects can be transferred reliably—saving time and reducing downtime on the production floor.
Click and navigate to your MCGS installation folder (e.g., C:\MCGS\McgsPro\Driver\USB ).
Overall recommendation
It will display as something like “MCGS Virtual COM Port (COM3)” . Take note of the assigned COM port number.
Right-click the problematic MCGS device and click . Choose Browse my computer for drivers .
Click and select the Drivers folder inside your MCGS installation path identified in Step 1.
Check the inside McgsPro. Ensure the communication link type is explicitly set to USB rather than COM1 or Network (LAN).
Connecting your PC to an MCGS (Kunlun Tongtai) Human-Machine Interface (HMI) is the first critical step for downloading projects, uploading data, and updating firmware. This connection relies entirely on the . Without the proper driver, your computer will display "Unknown Device" errors, and your MCGS Embedded Configuration Software (TPC_Backup or MCGS Pro) will fail to communicate with the panel.
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