The system was running on a temporary 21-day trial license that has since expired.
: Features like the Good Manufacturing Practice (GMP) Audit Trail or explicit Alarm Logs are accidentally turned on, inadvertently triggering a data-archiving condition in the background. Phase 1: Identify Where Logging is Configured
: If the error persists unexpectedly, some users resolve internal software conflicts by temporarily toggling the project type from "Single-User" to "Multi-User" and back in Project Properties Siemens SiePortal Are you currently working in a simulation environment or on a live production PC The system was running on a temporary 21-day
The “License key not available” error for WinCC Logging in Runtime Advanced is almost always a licensing configuration issue. The solution involves confirming that a valid, version-compatible, non-expired license is installed and recognized by Automation License Manager. Following the structured troubleshooting above resolves >95% of cases without requiring software reinstallation.
If logging is required: Note down the exact software version of your Runtime Advanced station (e.g., V18). Look at the HMI alarm view on your runtime screen
Look at the HMI alarm view on your runtime screen. The error message usually specifies the missing component (e.g., WinCC Logging for Runtime Advanced ).
It is important to understand that in TIA Portal, base WinCC Runtime licenses often do not include all advanced functionality. is an optional software package that requires a separate, additional license key. The system was running on a temporary 21-day
Write this as a formal feature request to Siemens Support: