to use the Administrator account; otherwise, the installation of mandatory components like the Microsoft Visual C++ 2005 Redistributable may fail.
: Supplied entirely via the USB cable; no external power supply is needed. Backwards Compatibility siemens pc adapter usb a2 driver windows xp verified
Do not confuse this with the older “USB PC Adapter” (6ES7 972-0CB10-0XA0). The uses a different USB chipset. The driver for the A2 is not backward compatible with the original. The uses a different USB chipset
The only driver for Windows XP (32-bit) is available from Siemens Industry Support. Do not download drivers from third-party “driver download” websites – they often contain malware or outdated, unsigned versions. install V5.4 + SP5
Step 7 V5.4 includes an older driver (v1.2) that is more compatible with some XP installations. Uninstall V5.5, install V5.4 + SP5, then let Windows Update the driver automatically.