To resolve this specific error, you need the license.
A recurring runtime popup notification warning of a missing license will continuously appear, which can be highly disruptive for operators.
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 ). To resolve this specific error, you need the license
If your TIA Portal project includes a or an Alarm Log , the runtime engine actively checks for these specific option licenses upon startup or when a logging trigger occurs. If the license is missing, corrupt, or of the wrong version, WinCC displays the "License Key Not Available" system alarm, and logging functions are disabled. Step 1: Identify the Missing License
Navigate to . Check if historical alarm archiving is active. While basic historical alarm views on physical Comfort Panels do not require an option license, running an alarm archive on a PC-based WinCC Runtime Advanced station does. The error message usually specifies the missing component (e
To help troubleshoot this further, could you provide a bit more context? Please let me know:
To understand the fix, you must first understand the system is asking for a specific license. Step 1: Identify the Missing License Navigate to
This pop-up notification triggers when the compiled configuration commands the HMI Runtime system to record historical data, but the local Siemens Automation License Manager (ALM) cannot locate or validate the required authorization key.
Trigger a log event (e.g., change a logged tag value or trigger an alarm). Check the system alarms to ensure the "License Key Not Available" message no longer appears. Troubleshooting Persistent Errors
然而，当你的项目迁移到 WinCC Runtime Advanced，许可模型发生了根本性转变。在 Runtime Advanced 上，每一个“高级”功能——包括 Logging——都需要单独的许可证。Runtime Advanced 的主要许可证只授权 Power Tags（外部变量点数）的数量；至于 Logging（数据/报警归档）、配方、Audit 等功能，则需额外购买对应的授权。