If you install STEP 7 V5.5 SP4 or an equivalent version of TIA Portal supported on Windows XP, the PC Adapter USB A2 driver installs automatically during the main software setup.
Click , then click Diagnostics to test the live connection to your hardware. 4. Troubleshooting Common Windows XP Communication Issues
：确保先安装了西门子软件（如 STEP 7），再运行驱动程序安装程序。 方法二 ：如果之前安装失败， 使用管理员权限运行 STEP 7 。 方法三 ：删除注册表键值 HKEY_LOCAL_MACHINE\SOFTWARE\Siemens\AUTSW\PC Adapter USB 后重启系统并重新安装。
If you see a yellow exclamation point next to the device in Device Manager with a Code 10 error, it means the driver is loaded but the hardware cannot communicate with the OS. siemens pc adapter usb a2 driver windows xp
Once you have downloaded the driver, follow these steps to install it:
Within a few seconds, Windows XP should automatically detect the new hardware and launch the "Found New Hardware Wizard".
Download from Siemens support (registration required): If you install STEP 7 V5
This error indicates a baud rate mismatch or an unpowered MPI/PROFIBUS port.
The driver was not properly linked during hardware insertion, or a generic driver hijacked the port.
Scroll through the Interface Parameter Assignment Used list to find the PC Adapter USB A2 profiles. You will see options like: PC Adapter USB A2.MPI.1 PC Adapter USB A2.PROFIBUS.1 PC Adapter USB A2.Auto.1 The driver was not properly linked during hardware
Siemens PC Adapter USB A2 (Article Number: 6GK1571-0BA00-0AA0) is compatible with Windows XP starting from Service Pack 2 (SP2)
Select when asked to connect to Windows Update, then click Next .
