Use the provided manufacturer CD or download the latest CH341SER.EXE from official sources like WCH.cn.

Set the transmission speed (usually for FX series PLCs). Troubleshooting Common JXMCU Issues

The first step in getting the driver to work is knowing which hardware you have. JXMCU cables typically use one of two main chipsets: Most common in budget-friendly JXMCU models.

Right-click the installer and select "Run as Administrator" to ensure it has permission to modify system COM ports. Manual Update via Device Manager: Plug the cable into a USB 2.0 port . Open Device Manager .

Problems installing CH340 drivers on Windows - Arduino Forum

Right-click the device → → Browse my computer for drivers .

Select the exact (e.g., COM3) found in your Device Manager.

Once installed, the device should appear under "Ports (COM & LPT)" as something like "USB-SERIAL CH340 (COM3)". 3. Configuring Software (GX Works2 / Developer)

Even with the driver working, your PLC software must be told where to look: Open your programming software (e.g., GX Works2 ). Go to → Serial/USB .