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 .
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 jxmcu driver work
Point it to the folder where you unzipped the JXMCU/CH340 files.
Getting a to work is essential for anyone using specialized USB-to-Serial programming cables, particularly for industrial hardware like Mitsubishi FX series PLCs . These drivers bridge the gap between your computer's USB port and the RS422 or RS232 protocols used by older industrial equipment. Understanding JXMCU Cables and Drivers Even with the driver working, your PLC software
Often found in "original English conversion" or higher-end yellow JXMCU cables. 2. Installation Steps for Windows 10/11
Select the exact (e.g., COM3) found in your Device Manager. Set the transmission speed (usually for FX series PLCs)
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 .