One of the most frustrating roadblocks for automation engineers and system integrators working with Siemens WinCC (TIA Portal) is the sudden appearance of the "License key not available" error, specifically when trying to use the WinCC Logging functionality in Runtime Advanced.
If the PC or IPC loses power without a clean shutdown, the license allocated to the active Runtime may become corrupted. Automation License Manager , right-click your license, and select . If it is marked as defective, you must contact Siemens Technical Support to have it restored. 3. Handle Engineering Simulation
If you already own the license but the error persists, check the ALM. Licenses can be marked as "defective" if the IPC was not shut down properly. If marked red/defective, you may need to contact Siemens Technical Support to restore them. If you are only seeing this during Simulation
The "License key not available! WinCC Logging for Runtime Advanced" error typically occurs when a PC-based WinCC Runtime Advanced application attempts to access historical data features—such as alarm or tag logging—without a valid dedicated logging license. While basic runtime functions might continue with periodic nag pop-ups, historical data collection will fail until the license is properly installed and recognized. Core Causes of the Error Siemenshttps://support.industry.siemens.com WinCC Logging for Runtime Advanced - 6AV2107-0GA00-0BB0
in TIA Portal, you can ignore it; the simulation will still function correctly even without the license. current order codes for the latest WinCC Runtime Advanced versions?
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