WinCC 7.5 SP2 does not use any SQL version; it is hard-locked to . Specifically, the Standard or Express Edition of SQL Server 2016 Service Pack 2 is the only database officially compatible and delivered with the WinCC installer.
If upgrading from an older OS (e.g., Windows 7 to Windows 10), do not perform an in-place OS upgrade with WinCC installed. Back up the WinCC project, perform a clean install of the OS, install WinCC V7.5 SP2, and then restore the project. Best Practices for a Stable Deployment
After installing Update 6, the version number in About WinCC should read 7.5.7.0 .
Compatibility list of the Windows operating systems ... - Support
Deploying WinCC on an unsupported operating system or pairing it with incompatible software can cause runtime crashes, database corruption, and communication failures with PLCs. This comprehensive guide details the absolute best operating systems, databases, and virtualization platforms for WinCC 7.5 SP2. 1. Supported Operating Systems (OS) wincc 75 sp2 compatibility list best
V16, V17, V18, and V19 (depending on the patch level of WinCC).
You must configure your antivirus to exclude the WinCC project directories, SQL Server database folders, and WinCC processes from real-time scanning. Otherwise, the scanner will lock critical files, causing archive errors and performance drops.
WinCC V7.5 SP2 is designed to work within the broader Siemens TIA ecosystem and alongside specific engineering tools:
SIMATIC WinCC V7.5 SP2 is a versatile SCADA solution, but maintaining system stability requires strict adherence to the Siemens Compatibility Tool requirements. This version introduced critical updates, including official support for and Windows Server 2022 . Core OS Compatibility Operating System Version Support Windows 11 Pro, Enterprise (64-bit) WinCC 7
V16 and V17 (Required for advanced industrial Ethernet communications like S7-RedConnect).
If you already have SQL Server on your machine, the WinCC-specific instance will not interfere with it, but WinCC must utilize its own isolated instance to avoid runtime instability. 🔗 Software Interoperability & Add-ons
| Microsoft SQL Server Version | Compatibility Status | Critical Notes | | :--- | :--- | :--- | | | ✅ Native, Fully Compatible | Installed automatically with WinCC V7.5 SP2. Do not install this manually. | | SQL Server 2016 SP2 (64-bit) | ✅ Fully Compatible | Standard installation version. | | SQL Server 2016 (64-bit) | ✅ Fully Compatible | Requires SP3 for optimal performance and security. | | SQL Server 2017 (64-bit) | ❌ Not Compatible | May cause connection issues. Use a dedicated WinCC/Connectivity Pack server with SQL Server 2019 instead. | | SQL Server 2019 (64-bit) | 🔄 Compatible with Add-ons | For WinCC/Connectivity Pack; not as WinCC primary database. |
Supports deployment on VMware ESXi and VMware Workstation/Player . Key Installation Prerequisites WinCC V7.5 SP2 Architectures - Siemens Back up the WinCC project, perform a clean
WinCC V7.5 SP2 strictly utilizes Microsoft SQL Server 2016 SP2 (64-bit) .
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Running multiple Siemens engineering packages on a single machine requires careful planning to avoid component conflicts, especially with the Automation License Manager (ALM) and communication drivers.
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