The Siemens 6AV6372-1DF35-2AX0 is the SIMATIC B.DATA V5 software package, specifically a client license for energy data management. It includes both engineering and runtime software (ES/RT-SW) and is delivered as a single license with a USB license key.

Product Type: SIMATIC B.DATA V5 Client

License Type: Single license (Engineering + Runtime)

Delivery Format: USB license key

Functionality: Energy data acquisition, analysis, and visualization

Product Lifecycle: Likely discontinued, though some distributors still offer it