For users who have STEP 7 (Classic) version V5.5 SP4 or higher installed, the driver is already included and integrated into the software. Under these circumstances, no separate driver installation is required—the adapter can be used immediately after connecting it to the PC.
Solution: A registry key may be blocking further installations. Navigate to the following registry location and delete the blocking entry:
The simplest method is to use the driver CD that was originally included with the PC Adapter USB A2 package. Insert the CD, and the installation should begin automatically. If auto-run is disabled, navigate to the CD drive's main directory and double-click on "setup.exe".
—the driver software must be installed before the hardware is connected. siemens pc adapter usb a2 driver windows xp verified
Search for the "PC Adapter USB A2 driver update" or extract it from the STEP 7 installation media ( CD:\Drivers\USB_A2\ ). Download the ZIP file to the Windows XP desktop. Step 2: Run the Installer Disconnect the PC Adapter USB A2 from the computer. Extract the downloaded ZIP archive. Open the extracted folder and double-click Setup.exe . Select the preferred installation language.
Windows XP Professional with Service Pack 2 (SP2) or Service Pack 3 (SP3). Service Pack 3 is highly recommended for proper USB 2.0/3.0 driver stack handling.
An experienced user reported successfully extracting drivers from an existing STEP 7 V5.5 installation on another Windows XP SP3 machine and transferring them to the target system. While not officially documented, this workaround has been verified to work by some users in legacy support situations. For users who have STEP 7 (Classic) version V5
If you tell me which (like STEP 7 or TIA Portal) you are using, I can help you configure the PG/PC interface for your specific PLC connection. PC Adapter USB A2 6GK 1571-0BA00-0AA0 Drivers problem
When using STEP 7 V5.5 SP4 or above, the driver is part of the SIMATIC Device Drivers component installed automatically with the software.
Follow these steps to deploy the driver without triggering hardware recognition errors. Step 2.1: Disconnect the Adapter Navigate to the following registry location and delete
The transmission speed or highest station address configured in the PG/PC interface does not match the actual physical PLC network configuration. Switch the interface parameter assignment to PC Adapter USB A2(Auto) to let the adapter detect network speeds automatically. Share public link
For users working with the S7-200 series PLCs, the driver supports additional connectivity. However, be aware that the PC Adapter USB A2 is not specifically described as released for PPI communications, which is the communication protocol used by the S7-200 programming port. While the adapter can work for these applications, users should check the official compatibility notes for their specific CPU models.