The Siemens PC Adapter USB A2 (often part number 6ES7 972-0CB20-0XA0) is the successor to the older A0 and A1 adapters. It’s a robust little tool used to convert the USB interface of your PC to the Serial MPI/PROFIBUS interface of the PLC.
📎 : Copy the entire USB_DRIVER folder from C:\Program Files\Siemens\Step7\S7BIN\ to a USB stick. This way, you can reinstall the driver on any XP machine without reinstalling STEP 7.
This ensures stable operation and communication. It is also important to note that the hardware adapter supports Windows XP, Vista, Windows 7, and even Windows 8 in both 32-bit and 64-bit architectures. siemens pc adapter usb a2 driver windows xp
Connect the USB A2 adapter to a physical USB 2.0 port on your PC. Avoid using external, unpowered USB hubs, as the adapter draws its operational power directly from the USB bus.
To prevent driver corruption or hardware recognition issues, adhere to the following rules: The Siemens PC Adapter USB A2 (often part
Click to match the transmission rate (baud rate) and highest station address with your actual physical PLC network. Click OK to apply the settings. Troubleshooting Common Errors on Windows XP
The driver files are typically located in: This way, you can reinstall the driver on
Once the installation is complete, the wizard will prompt you to restart your computer. to allow the registry changes to take effect. Step 3: Connect and Initialize the Hardware
The adapter originally shipped with a "PC Adapter USB A2 - Driver Disk".
How to Install and Configure the Siemens PC Adapter USB A2 Driver on Windows XP