Wincc Logging For Runtime Advanced Work [top]: License Key Not Available

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 ).

: Starting a simulation in TIA Portal on your engineering PC will also trigger this message if the logging license is missing from that specific PC.

Validates basic operation, screens, and communication based on tag count (e.g., 128, 512, 2048 tags). Look at the HMI alarm view on your runtime screen

There are four possible reasons for the "not available" status:

If you have ever stared at the alarm buffer of a Siemens HMI, wondering why your data logs look like Swiss cheese—full of holes—you might have met the silent killer of industrial data integrity: Comfort Panels include Logging functions in the base

Select your logs and clear the checkbox for or delete the log configurations temporarily.

A very interesting scenario can occur: your project might have been originally created for a Comfort Panel and later migrated to WinCC Runtime Advanced. Comfort Panels include Logging functions in the base package, but WinCC Runtime Advanced does not. If Logging functions remain configured (even if not actively used), the system will still request the license. an active Alarm Log

The project configuration contains hidden or forgotten logs (such as an empty Data Log, an active Alarm Log, or a GMP/Audit Trail feature) that trigger the license check automatically upon system boot.

You are explicitly using historical data logs, trend views, or alarm logs in your HMI project, but you have only purchased/installed the base WinCC Runtime Advanced (PowerTags) license.