It sounds like you are encountering the error for WinCC Logging when trying to use the Runtime Advanced link in Siemens TIA Portal.
In industrial automation environments utilizing Siemens TIA Portal and WinCC, the error message represents a critical interruption to Human-Machine Interface (HMI) operations. This error indicates a discrepancy between the licensed functionality requested by the runtime application and the available authorization keys present on the target system. "License key not available" It sounds like you
Siemens separates (screen navigation, alarms) from data logging (archives, trends, data sets). WinCC Runtime Advanced base = HMI only. WinCC Logging = add-on. If you migrated from Advanced to Professional, ensure
Siemens licenses create a hidden cache file. Corrupt cache breaks the "link." Solution C: Clear License Cache Siemens licenses create
: In some versions, the SmartServer service starts automatically and may request a license even if not actively used. You can disable the "CoRTSmartServer" service in Windows Services to stop the prompt. Defective Licenses
You may have a license for "WinCC Professional" or "Comfort" which is not compatible with "Runtime Advanced."
When simulating a project in TIA Portal on your engineering PC, the simulation tool behaves exactly like the actual Runtime. If your project has logging enabled, the simulation will also prompt for the logging license key unless that key is transferred to your engineering station. order codes for the logging license or instructions on how to transfer keys using a USB drive?