For the rest of us who still keep an OP27 running a critical mixing line, is the quiet hero of the service bay.

This URL is provided in the official Siemens article about ProSave V10 and by experienced automation experts.

: Establish a physical connection (e.g., Ethernet or MPI) between your PC and the HMI.

Name your .psb (ProSave Backup) files clearly, including the machine name, date, and firmware version (e.g., Line1_KTP700_Backup_2026_05_19.psb ).

: ProSave is available for free without requiring a full engineering system installation.