The adapter originally shipped with a SIMATIC Software PC Adapter USB CD .
Most users do not need a separate download if they have installed STEP 7 (Classic) or TIA Portal, as these packages include the necessary communication drivers. pc adapter usb 6es7 972-0cb20-0xa0 driver download
The driver for the 6ES7 972-0CB20-0XA0 is typically bundled with Siemens engineering software rather than provided as a standalone executable. The adapter originally shipped with a SIMATIC Software
Officially, the "A1" version (0CB20) was only supported up to Windows 7. However, installing STEP 7 v5.6 or higher on a Windows 10 machine often installs a compatible driver that allows this adapter to function. Officially, the "A1" version (0CB20) was only supported
The is a fundamental tool for industrial automation, serving as the bridge between a modern PC and classic Siemens PLCs like the S7-200, S7-300, and S7-400 . Because this hardware was discontinued in 2015, finding and installing the correct driver for modern operating systems like Windows 10 or 11 requires specific technical steps. Official Driver Download & Compatibility
If the adapter is not recognized after plugging it in, follow these manual installation steps: driver for PC adapter USB V1.3 - SiePortal - Siemens
For full, native support on Windows 10 and 11, Siemens recommends the newer PC Adapter USB A2 (6GK1571-0BA00-0AA0). Step-by-Step Installation Guide