Siemens SIMATIC PC Adapter USB A2 (Article No: 6GK1571-0BA00-0AA0 fully compatible with Windows XP SP2 and higher . It serves as the modern replacement for the older PC Adapter USB
MPI and PROFIBUS with automatic bus profile detection. Power Supply: Powered directly through the USB interface. Driver Installation Guide for Windows XP Simatic Pc Adapter Usb A2 Driver Windows Xp
If STEP 7 is installed, the adapter will still work as a pure serial converter using only the USB COM driver, but you cannot use MPI/PROFIBUS protocols. Useful for PPI (S7-200) with third-party software (e.g., PC Access). Siemens SIMATIC PC Adapter USB A2 (Article No:
| Problem | Fix | |---------|------| | Driver installs but adapter not recognized | Uninstall driver, reboot, reinstall before plugging in | | COM port number > 16 | Manually change to COM1–COM4 in Device Manager | | “Device cannot start (Code 10)” | Try another USB port (USB 2.0 only, not USB 3.0) | | Missing DLL errors | Install .NET Framework 2.0/3.5 and C++ redistributables | Driver Installation Guide for Windows XP If STEP
In consumer tech, a 5-year-old driver is obsolete. In industrial automation, a 15-year-old driver is "current working condition." The A2 adapter is physically robust, but the software stack required to run it is fragile on XP.
Here is an interesting perspective on why this specific driver/hardware combination matters.
If you are forced to use XP, . Siemens released version 3.0 of the USB A2 driver, but that version removed XP support entirely (min OS is Windows 7).