: If the license is present but shows as "defective" in ALM, it may be due to an improper system shutdown. You may need to use the "Check" function in ALM to verify its status. 2. Evaluate Logging Usage in Project Review Runtime Settings : If you do not intend to use logging, go to Runtime Settings > Logging and ensure no tag logs or alarm logs are configured. GMP Features : Disable "Good Manufacturing Practice" (GMP) options in Runtime Settings
Moving forward, keep these best practices in mind:
Instead of a graph, you see:
The "License Key Not Available" error can be a significant obstacle to logging functionality in WinCC Runtime Advanced Work. By following the troubleshooting steps and workarounds outlined in this article, users can resolve the issue and ensure seamless logging operations. Regular maintenance, accurate record-keeping, and best practices can help prevent future issues and ensure optimal performance of the WinCC system. If issues persist, it is recommended to contact Siemens support or a qualified WinCC expert for further assistance.
This comprehensive guide breaks down why this error occurs, how the Siemens licensing mechanism works for runtime applications, and the exact steps required to resolve the issue. Understanding the Root Cause : If the license is present but shows
: Features like the Good Manufacturing Practice (GMP) Audit Trail or explicit Alarm Logs are accidentally turned on, inadvertently triggering a data-archiving condition in the background. Phase 1: Identify Where Logging is Configured
The error "License key not available! WinCC Logging for Runtime Advanced" Evaluate Logging Usage in Project Review Runtime Settings
: If the IPC or PC is shut down abruptly without closing the Runtime, active licenses may be marked as "defective" in the Automation License Manager (ALM) System Date Changes
Tag logging and alarm logging will temporarily halt or fail entirely. You will experience gaps in your historical trend data, making troubleshooting and audits impossible for the periods the license was missing. By understanding the licensing model
The message "License key not available! WinCC Logging for Runtime Advanced" is ultimately a straightforward statement: the system is working exactly as designed and telling you which specific license it expects. By understanding the licensing model, verifying your installation, and methodically working through the troubleshooting steps above, you can resolve this issue quickly and get back to monitoring and controlling your processes.
一个高效的排查流程可以帮你节省数小时甚至数天的时间。按顺序执行以下操作：