Are you running into a specific or Windows version issue while trying to connect to your PLC?
Once the installation wizard finishes, plug the TSX C USB 485 cable into a USB port on your computer. It is recommended to use a USB 2.0 port if available, though USB 3.0 is usually backward compatible.
Always install the driver software before plugging the adapter into the USB port for the first time.
Right-click the downloaded driver’s .sys or .exe → Properties → Digital Signatures → Should show “Schneider Electric” or “Schneider Automation”.
Open Device Manager, look under "Ports (COM & LPT)" or "Universal Serial Bus Controllers." The device should appear without a yellow warning symbol. Configure Rotary Switch:
The installer often requires older .NET Framework features (2.0/3.5) to be active in "Turn Windows features on or off". Schneider Electric 5. Summary Recommendation Do not trust standalone files found on untrusted sites. Utilize the Schneider Modbus Driver Suite
This specific cable—the TSX C USB 485—is a vital bridge between modern PCs (which lack serial ports) and older industrial controllers that rely on the RS-485 communication standard. Without the correct driver, this cable is nothing more than a plastic dongle.
Finding a reliable is not as easy as it should be, but with the official Schneider Electric source or verified community repositories, you can get your legacy PLC online safely. Always prioritize security – scan every file, disable driver signing temporarily, and prefer a virtual machine for Windows 11.
In rare cases, Schneider’s website may redirect you to a retired product page. In that event, the following automation communities host verified clean copies:
This is the modern standard for Windows 10 users. It resolves the "Code 39" error where Device Manager fails to recognize the cable. You can find the PLC USB Driver Suite on the official Schneider Electric FAQ page.
A: C:\Windows\System32\drivers\tsxcdrv.sys and C:\Windows\INF\oemXX.inf
Newsletters
Set as preferred source