Find the HMI listed under "Other Devices" (often marked with a yellow exclamation point). Right-click and select Update Driver , then choose Browse my computer for driver software
Connecting your MCGS (Kunlun Tongtai) HMI to a PC requires the correct USB driver. Without it, your programming software cannot upload or download PLC projects. This comprehensive guide covers everything you need to install, configure, and troubleshoot the MCGS HMI USB driver. 1. What is the MCGS HMI USB Driver?
Avoid using USB hub extensions. Plug the cable directly into a motherboard USB port (preferably a USB 2.0 port, as older MCGS hardware sometimes struggles with USB 3.0/blue ports). 2. Bypass Driver Signature Enforcement (Windows 10/11)
Restart Windows in Disable Driver Signature Enforcement mode. Once restarted, install the manual driver using the steps in Method 2. HMI Not Recognized (Unknown Device) mcgs hmi usb driver
However, the MCGS HMI does not use a standard Windows USB class driver (like a mouse or keyboard). Instead, it uses a proprietary or a dedicated download protocol driver . Without this specific driver, your PC will see the HMI as an "Unknown Device" in Device Manager.
In this mode, the HMI is the "host." You plug a USB flash drive into the HMI to export historical data (CSV/Excel), alarm logs, or recipes.
It allows for debugging and simulation directly on the panel. Find the HMI listed under "Other Devices" (often
Open and check which COM port number was assigned (e.g., COM3).
Installing the MCGS HMI USB driver is a straightforward process. Here’s a step-by-step guide:
To install the MCGS HMI USB driver , you typically follow a specific sequence during the software installation process. Installation Steps Extract the Software This comprehensive guide covers everything you need to
: Some older HMI drivers do not communicate well over blue USB 3.0/3.1 ports. Try plugging the cable into a black USB 2.0 port on your computer.
You will need the MCGS HMI USB driver in the following situations:
If your PC shows an "Unknown Device" error in the Device Manager when you plug in the HMI, you must install the driver manually. Step 1: Connect the Hardware Power on the MCGS HMI using a stable 24V DC power supply.
Many engineers prefer SD card for field deployment, reserving USB for debugging.
When the HMI boots up and the USB connection is detected, Windows will attempt to install the device.