Essentially, it allows a modern laptop or desktop without a native COM port to communicate with older Siemens S7-300, S7-400, S7-200, and even some S7-1200 PLCs (via legacy protocols).
The adapter is plugged directly into a (no hubs). siemens pc adapter usb a2 driver windows xp
The PC Adapter USB A2 does not use the same legacy drivers as the older, discontinued PC Adapter USB (6ES7972-0CB20-0XA0). It requires a newer driver package that supports the "A2" hardware architecture. Essentially, it allows a modern laptop or desktop
The Siemens SiePortal (formerly Industry Support) is the best location for the official V1.0 driver disk contents, often provided as a ZIP file [such as this one shared by users](https://drive.google.com/file/d/1CECMim ... sp=sharing). siemens pc adapter usb a2 driver windows xp