When using STEP 7 V5.5 SP4 or above, the driver is part of the SIMATIC Device Drivers component installed automatically with the software.
: This is the core driver package specifically for Windows XP/Vista. Siemens SiePortal : You can find official download links for the PC Adapter USB A2 Driverdisk V1.0 on the Siemens Industry Online Support portal.
PC Adapter USB A2 6GK 1571-0BA00-0AA0 Drivers problem - XP SP3
: Allow the system to reboot after the "Simatic Device Drivers" are installed. Hardware Wizard : Plug in the USB adapter only siemens pc adapter usb a2 driver windows xp verified
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: Uninstall the device completely from Device Manager, restart Windows XP, and reinstall following the proper steps above. Ensure the driver is not located in a virtual sharing folder if using a virtual machine (see Issue 6 below).
Insert your STEP 7 installation media. The setup wizard automatically installs the necessary PG/PC interface drivers, including the USB A2 software stack. When using STEP 7 V5
Select PC Adapter USB A2.MPI.1 and click the button.
: It draws working power entirely via the USB V2.0 interface. Crucially, it features built-in electrical isolation within a Safety Extra Low Voltage (SELV) circuit. This permits safe operation directly on ungrounded or floating control architectures.
How to Install and Verify the Siemens PC Adapter USB A2 Driver on Windows XP PC Adapter USB A2 6GK 1571-0BA00-0AA0 Drivers problem
Verifying that Windows XP correctly identifies and communicates with the hardware is essential to prevent communication dropouts during live PLC operations. Verification Step 1: Windows Device Manager Check
However, a persistent challenge remains: . While Microsoft ended support years ago, many critical machines still run XP SP3 for compatibility with older versions of SIMATIC Manager (Step 7 V5.5 or earlier). Finding a verified, working driver for the PC Adapter USB A2 on Windows XP has become a frustrating scavenger hunt filled with corrupted downloads, unsigned driver errors, and mysterious “yellow exclamation marks” in Device Manager.
: It features electrical isolation between the MPI/DP and USB interfaces, ensuring safety even when connected to ungrounded S7 systems. Three LEDs provide immediate diagnostic feedback on power and communication status. Verified Installation for Windows XP
The driver is required to establish communication between the USB hardware and Siemens software like or TIA Portal .