. If logs are defined but not used, delete them and recompile the project. Disable GMP Runtime Settings > Good Manufacturing Practice
Unlike SIMATIC Comfort Panels, which include logging functionality for free, a PC running requires a specific license to enable: Historical Data Logging : Archiving process values (tags). Alarm Logging : Archiving system and process alarms. Alarm Logging : Archiving system and process alarms
. It will not stop the simulation from working, though it may reappear every few minutes. “In WinCC Runtime Advanced, when the logging license
“In WinCC Runtime Advanced, when the logging license is not available, the system should allow at least short-term circular buffered logging to disk (e.g., last 24 hours) with a persistent watermark. This prevents data loss during license renewal delays or temporary network failures to a license server.” “In WinCC Runtime Advanced
If troubleshooting confirms you genuinely lack the license, you have three purchasing routes.