License Key Not Available Wincc Logging For Runtime Advanced Work Updated Jun 2026

：如果尝试本文所述方法后问题仍未解决， 请直接联系 Siemens 工业技术支持团队 ，并提供你的 ALM 许可证截图、项目 Logging 配置截图以及完整的错误信息。最有效的解决路径，往往是与官方技术支持直接沟通。

Temporary workarounds

To resolve the "License Key Not Available" error, follow these steps:

: There is also a combined license available that covers both Recipes and Logging if both functions are needed. The error message typically occurs when a project

If the license exists but the error persists, use these steps to fix the communication between WinCC and the License Manager.

Use the menu option (or drag-and-drop within ALM) to move the "WinCC Logging for Runtime Advanced" license to the target C: drive of the runtime PC.

The error message typically occurs when a project configured with data or alarm logging is running on a PC-based station without the specific "Logging" option license. Core Cause: The License Gap The Problem: : If you are logging tags

in your project tree and delete any configured logs. If you do need it, you must purchase and transfer the license via the Automation License Manager (ALM) Step 2: Inspect the "Defective" License Bug Sometimes the license there, but the system doesn't see it. The Problem:

: If you are logging tags or alarms on a PC station, you must acquire the license for WinCC Logging for Runtime Advanced (e.g., MLFB: 6AV2107-0GA00-0BB0).

如果完成上述所有步骤仍无法找到触发源，不要浪费时间继续在项目中寻找隐藏的 Logging 模块。此时更高效的策略是： but the system doesn't see it.

WinCC Runtime licenses are typically "Single" licenses, meaning they are bound to one specific hardware machine at a time. They cannot be actively shared across a network simultaneously.

对于维护人员和自动化工程师而言，熟练掌握 ALM 的诊断技巧、理解 WinCC 的许可依赖关系，是保障生产系统稳定运行的关键能力。希望这份指南能帮你节省排查时间，让你少走一些弯路。

In ALM, filter to show only "WinCC" related licenses. Check if you have the correct version of WinCC Runtime Advanced (e.g., 512, 2048 PowerTags) that matches or exceeds your project's requirements. Also, avoid having too many unnecessary license files on the system—uninstalling or deleting redundant ones can sometimes resolve conflicts.