Yes. The engineering PC’s F-pack version must match or be newer than the F-CPU’s compiled safety program version. Otherwise, future online changes will be blocked.
Extract files to a temp folder (e.g., C:\Temp\Siemens_Update ). Do not extract directly to Program Files . simatic-s7fprojx-v5-5-sp13-upd1.exe
Only obtain this file from the Siemens Industry Online Support (SIOS) or the official Download Center. The SHA-256 hash should match the one published by Siemens. simatic-s7fprojx-v5-5-sp13-upd1.exe