WinCC V7.5 SP2 typically requires specific versions of SIMATIC NET for connecting to S7-300/400/1200/1500 PLCs.
This document provides a definitive compatibility list for SIMATIC WinCC V7.5 SP2 (including Update 1 through Update 5, where noted). It is intended to prevent installation errors, runtime failures, and communication issues.
Scope: Operating systems, SQL Server versions, STEP 7 / TIA Portal integration, SIMATIC NET, and typical I/O drivers (OPC, Modbus, etc.).
If you are migrating from WinCC 7.4 SP1 or 7.5 SP1, here is the direct upgrade compatibility:
| Existing Version | Direct Upgrade to 7.5 SP2? | Required Steps |
| :--- | :--- | :--- |
| WinCC 7.4 SP1 | ⚠️ No (via 7.5 SP1 intermediate) | 1. Upgrade OS to Win10 LTSC
2. Upgrade to WinCC 7.5 SP1
3. Upgrade to SP2 |
| WinCC 7.5 SP1 | ✅ Yes | Project duplication + DB migration script (provided in SP2 installer) |
| WinCC V7.0 – 7.3 | ❌ No | Complete rebuild required – no project migration path |
Warning: Projects using VB scripts with SQL direct access often break due to SQL 2017 security hardening.
WinCC 7.5 SP2 supports the following operating systems:
SIMATIC WinCC V7.5 SP2 is a widely used SCADA system designed for complex plant visualizations. According to the official Siemens release notes, compatibility centers on specific 64-bit operating systems and database versions. Operating System Compatibility wincc 7.5 sp2 compatibility list
WinCC V7.5 SP2 is officially supported on the following 64-bit platforms: Windows 10: Professional and Enterprise. Windows 10 Enterprise LTSC: 2015, 2016, and 2019 versions.
Windows 11: Supported as of version 22H2 (Pro and Enterprise) and later, though specific Windows 11 releases like 25H2 may not yet be approved. Windows Server: Windows Server 2012 R2. Windows Server 2016. Windows Server 2019. Database & Software Requirements
Microsoft SQL Server: Requires SQL Server 2016 SP2 (64-bit) in either Standard or Express editions.
Internet Explorer: For internal web components on Windows 11, Internet Explorer 11 must be enabled via Windows Features.
Exclusions: It cannot be installed simultaneously with WinCC RT Professional (TIA Portal), WinCC Unified, or legacy WinCC V6/V7.x versions. Compatible Options & Components
The following Siemens add-ons and options are released for use with V7.5 SP2: Communication: SIMATIC Net V16.
Web Systems: WinCC/WebNavigator V7.5 SP2 and WinCC/WebUX V7.5 SP2. WinCC V7
Reporting & Archiving: SIMATIC Information Server 2014 SP3 (Upd4/5) and SIMATIC Process Historian 2014 SP3.
Standard Options: Server, Redundancy, UserArchives, Connectivity Pack, and DataMonitor (all V7.5 SP2).
For the most up-to-date and specific hardware/firmware combinations, users should utilize the Siemens Compatibility Tool to verify their exact configuration.
Are you planning to upgrade an existing system or perform a fresh installation on new hardware?
WinCC V7.5 SP2 Architectures - Digital Asset Management - Siemens
Here’s a concise, blog-style post about WinCC 7.5 SP2 compatibility. You can copy this directly to your site or use it as a template.
WinCC uses Microsoft SQL Server for archiving and licensing. This document provides a definitive compatibility list for
| WinCC Component | Required SQL Version | Notes | |----------------|----------------------|-------| | WinCC V7.5 SP2 (new install) | SQL Server 2017 Standard / Enterprise | Must be English collation (SQL_Latin1_General_CP1_CS_AS) | | WinCC V7.5 SP2 Upgrade from older version | Migrates SQL 2014 → SQL 2017 | Requires uninstall of old SQL | | WinCC Archiving | SQL Server 2017 | No support for Azure SQL / Express editions |
Critical: Do not install any other SQL instance on the same machine. WinCC requires its own named instance (
WINCC).
WinCC 7.5 SP2 requires Microsoft SQL Server 2017 Standard / Enterprise. It will not work with SQL 2019 or 2022 unless you apply specific patches (rare).
During installation, the WinCC setup automatically installs a named instance: WINCC. Don’t change this unless you really know what you’re doing.
WinCC 7.5 SP2 uses Office for report generation (WinCC/Reporting) and export to Excel.
| Application | Supported Version | Notes | | :--- | :--- | :--- | | Microsoft Excel | 2016, 2019, Office 365 (32-bit only) | WinCC automation DLLs are 32-bit. 64-bit Office will fail to export. | | Microsoft Word | 2016, 2019, Office 365 (32-bit) | For report layouts. | | Microsoft Access | 2016, 2019 (32-bit) | Used for archiving to MDB format (legacy). Avoid if possible. |
Critical: Install 32-bit Office, even if your Windows is 64-bit. Siemens does not provide 64-bit Office automation.