Once installed, verify the connection through the following Siemens utilities: Device Manager : Check under "Simatic Net" . You should see Simatic PC Adapter USB A2 listed without any error icons. Set PG/PC Interface
Finding the correct driver for the Simatic PC Adapter USB A2 can be challenging, especially since Siemens has discontinued support for Windows XP. However, there are still ways to find and download the driver:
Version 5.3 or lower matches Windows XP architecture. Unsupported Software Versions
The PC Adapter USB A2 works flawlessly on Windows XP (specifically Service Pack 3). Unlike modern Windows 10/11 environments where driver signature enforcement causes headaches, Windows XP treats this device natively when installed correctly.
[Connect USB A2] ---> [Hardware Wizard Opens] ---> [Select Manual Search] ---> [Point to Driver Folder] ---> [Finish] Simatic Pc Adapter Usb A2 Driver Windows Xp
Because Siemens does not offer a standalone, single-file installer specifically named "PC Adapter USB A2 Driver for Windows XP," you must extract or install it via the Simatic device drivers package. Method 1: Installation via STEP 7 V5.5 Close all open automation applications. Insert your STEP 7 V5.5 SP3/SP4 installation media. Run the setup wizard and select a custom installation. Ensure the component is checked. Complete the installation and restart the operating system. Method 2: Manual Driver Extraction
Set this to match the physical PLC port configuration (e.g., 187.5 Kbps for standard MPI, or 1.5 Mbps for standard PROFIBUS).
Firmware Mismatch: Some newer USB A2 units may require a firmware downgrade to work with very old versions of STEP 7 on XP.
: When configuring the interface, explicitly select MPI or Profibus rather than "Auto," as the auto-detection frequently fails on older XP setups. Once installed, verify the connection through the following
The SIMATIC PC Adapter USB A2 functions as a USB‑to‑PROFIBUS/MPI interface converter. It acts as a CP 5711 communication processor, allowing software such as STEP 7, STEP 7‑Micro/WIN, and TIA Portal to communicate with S7‑300, S7‑400, and S7‑200 controllers. The adapter is physically connected to a USB port on the PC and to the PLC’s MPI or PROFIBUS port using the supplied cable, and it draws its power from the USB port, eliminating the need for an external power supply.
Drivers are typically included on a CD with the adapter or bundled with Siemens software like STEP 7. Follow these steps for a clean manual installation: Siemens SiePortal PC Adapter USB A2 6GK 1571-0BA00-0AA0 Drivers problem
If you are getting a during installation?
Troubleshooting Simatic PC Adapter USB A2 Drivers on Windows XP However, there are still ways to find and
Before initiating the driver installation, verify that your hardware and software revisions support the USB A2 adapter. The USB A2 version differs significantly from the older, discontinued USB adapter (6ES7972-0CB20-0XA0). Supported Protocols
Follow the prompts and restart the computer if required.
: Close all running programs and ensure you have Administrator rights . Run Setup : Insert your driver CD and run Setup.exe .
If you have STEP 7 V5.x installed, the driver is already present. Insert the Siemens Installation CD.