In the "Access Point of the Application" dropdown, ensure is selected.
The problem? Windows XP doesn't always play nice with the A2 drivers natively, especially if you are trying to set it up for the first time. Unlike modern "Plug and Play" devices, this requires a specific driver installation to create the virtual COM port that Step 7 needs to communicate.
To avoid driver corruption or communication conflicts, follow this exact sequence when installing the PC Adapter USB A2 on a Windows XP machine. Step 1: Install the Siemens Engineering Software First siemens pc adapter usb a2 driver windows xp
The driver installs automatically when STEP 7 V5.5+ is installed on Windows XP. If STEP 7 is already present, proceed to the next step.
. If you do not have administrative rights, the process will fail at this stage. Device Drivers In the "Access Point of the Application" dropdown,
Navigate to Device Manager, open the properties for your USB Root Hubs , go to the Power Management tab, and uncheck "Allow the computer to turn off this device to save power." If the problem persists, use a powered USB 2.0 industrial hub between the PC and the adapter. 5. Firmware Updates and Long-Term Maintenance
Here is where many engineers get tripped up. The A2 adapter is faster and more capable than the older A0, but in Step 7, you have to tell it how to behave. Unlike modern "Plug and Play" devices, this requires
Error: "Windows has determined the driver software for your device is not installed."