To upgrade older projects to WinCC 7.5 SP2, you may need a multi-step migration path depending on your starting version.
WinCC V7.5 SP2 installs Microsoft SQL Server 2017 (64-bit) Service Pack 2 Standard Edition automatically during setup.
Because compatibility changes when Microsoft releases new security patches or Siemens releases WinCC Updates (Upd1, Upd2, etc.), you must use the official Siemens tools for the final word.
WinCC V7.5 SP2 requires in either Standard or Express Edition [1†L18-L21]. The required SQL Server 2016 SP2 installer is provided as part of the WinCC package and is intended to be installed automatically during the WinCC setup. wincc 7.5 sp2 compatibility list
Every WinCC architecture relies on an integrated relational database engine to log real-time process tags, process operational alarms, and compile user archives. WinCC V7.5 SP2 Installation / Release Notes - Support
: Fully supported only starting with WinCC 7.5 SP2 setups. Base versions of WinCC 7.5 will fail on Windows 11 due to SQL Server mismatches. Windows Server Operating Systems (64-Bit Only)
Generate a downloadable Excel list of officially tested and released configurations. To upgrade older projects to WinCC 7
Disable automatic updates on production servers to prevent unplanned restarts.
: Pro and Enterprise (supported from WinCC 7.5 SP2 onwards). Windows Server 2012 R2 : Standard/Datacenter. Windows Server 2016/2019 : Standard/Datacenter. Windows Server 2022 : Standard/Datacenter. Software & Engineering Tool Compatibility : Compatible with STEP 7 V5.6 HFx/SP2 for integrated operation in SIMATIC Manager. SIMATIC Net : Supports SIMATIC Net V16 and later. Historian & Information Server : Compatible with Process Historian 2014 SP3 Upd4/5 Information Server 2014 SP3 Upd4/5 PM-Products
8 GB minimum (16 GB or more recommended for Server stations). WinCC V7
WinCC V7.5 SP2 relies on a specific version of Microsoft SQL Server. Understanding this dependency is essential to avoid installation failures.
If you are migrating from or 7.5 SP1 , here is the direct upgrade compatibility:
WinCC 7.5 SP2 is fully compatible with its standard add-on options: Essential for high-availability systems. WinCC/UserArchives WinCC/WebNavigator & WebUX WinCC/Connectivity Pack