WinCC is generally not compatible with newer SQL versions like 2022 or 2025; attempting to use unreleased versions often leads to database connection failures. Browser & Option Compatibility
: Version 6.5, 6.7, 7.0, and newer compatible releases.
WinCC V7.5 SP2 typically requires specific versions of SIMATIC NET for connecting to S7-300/400/1200/1500 PLCs. wincc 7.5 sp2 compatibility list
: For multi-user systems, a server OS is recommended. A Windows 10 server is technically allowed for systems with up to three clients, but a proper server OS is strongly advised for stability and performance. Supported server OS include:
If you are migrating from or 7.5 SP1 , here is the direct upgrade compatibility: WinCC is generally not compatible with newer SQL
If you can tell me the you intend to use and whether you are setting up a server or client , I can provide a more tailored checklist.
: Supported starting with WinCC V7.5 SP2 Update 4 and higher (specifically validated for editions up to 22H2/23H2 ). Note that newer feature releases (such as Windows 11 24H2 or 25H2) are explicitly excluded from the 7.5 SP2 lifecycle and require migrating to SIMATIC WinCC V8.x . Windows Server OS Support : For multi-user systems, a server OS is recommended
WinCC 7.5 SP2 installs and uses specific versions of Microsoft SQL Server to manage historical data and configurations. It is crucial to install a separate SQL Server instance unless specified by Siemens, as WinCC 7.5 SP2 requires its own configured instance (usually named WINCC ).
(Server / Client / Single-User)
WinCC V7.5 SP2 Compatibility: A Comprehensive Guide Maintaining a stable SCADA environment requires careful adherence to the SIMATIC WinCC V7.5 SP2 compatibility requirements. This service pack, released by