The message " License key not available! WinCC Logging for Runtime Advanced
Once the correct license is activated, your data logs, historical trends, and alarm archives will spring to life. Remember that in automation, a missing license is rarely a bug – it is a feature waiting to be purchased. The message " License key not available
Why? WinCC RT Advanced gives you a 7-day "grace period" for logging when it can't find a license. However, if the clock is set to the future, it assumes the grace period expired. By setting the clock back, you trick the system into reactivating the demo logging. Confirm the license is activated (green checkmark) and
Here’s a structured feature request / workaround-oriented answer: If you do not need logging, remove all
Fix: If a license is marked as defective, Alex had to contact Siemens Technical Support to have it restored. To prevent this in the future, Alex installed a UPS to ensure a clean shutdown.
If you do not need logging, remove all configured Data Logs and Alarm Logs from the project and recompile. Restore Defective Licenses:
Remove Logging (Optional): If you do not actually need logging, navigate to Historical data > Data logs and Alarm logs in the TIA Portal project tree and delete any configured logs, then recompile and download the project. Common False Alarms