| Cause | Description | |-------|-------------| | | No valid license for WinCC Logging (e.g., “WinCC Logging for Runtime Advanced”) is installed on the target runtime machine. | | Incorrect license type | A standard WinCC Runtime license (without Logging option) is installed but does not cover data logging. | | License not activated | License exists on the drive but not transferred (e.g., not activated via Automation License Manager). | | Wrong license version | License is for an older or newer version of WinCC/TIA Portal and not backward/forward compatible. | | License key not found | ALM (Automation License Manager) cannot locate the license (wrong drive, network issue, USB dongle not inserted). | | Trial license expired | A trial or demo license was previously used and has expired. | | Runtime Advanced vs Professional | Using Runtime Advanced but license is for Runtime Professional (or vice versa), or missing the logging add-on specifically. |
In ALM, drag and drop the license from the source drive to the of the Runtime PC. 4. Upgrade if Necessary | Cause | Description | |-------|-------------| | |
Unlike Siemens Panels, where logging is often included, PC-based Runtime Advanced requires three distinct license types to operate fully without "nag" screens: | | Wrong license version | License is
If these are empty but you still get the error, check if a "System Diagnostic" or "Audit" feature is enabled, as these also trigger logging requirements. 2. Check Automation License Manager (ALM) The ALM is the central hub for all Siemens licenses. | | Runtime Advanced vs Professional | Using
Siemens licenses must reside in specific root directories:
: If you do not actually need logging, ensure you haven't accidentally checked "Good Manufacturing Practice" (GMP) or other logging-dependent settings in Runtime Settings in the TIA Portal.
: Check the status in the Automation License Manager (ALM) . If it shows a red cross, the license is corrupted and may need to be restored by Siemens Support .