Sometimes the license server gets stuck. You have to force a re-scan without rebooting Windows (which takes 10 minutes on an old Panel PC).
If they are not running, right-click each one, select , and then set them to Automatic to ensure they start on boot.
You’ve built a beautiful SCADA system on a Siemens Comfort Panel or a PC RT Advanced. You have configured data logs for batch reports, trend views for temperatures, and process value archives.
Before purchasing or installing new licenses, verify if you actually need the Logging functionality.
If you have transferred the license but the error remains, check the following variables: Sometimes the license server gets stuck
If you have configured a "Data Log" or an "Alarm Log" in your TIA Portal project, the Runtime software will trigger a license check at startup and display this error if the key is missing. Required License Details
If the basic troubleshooting steps do not resolve the issue, try the following advanced steps:
Disclaimer: Do not pirate software. But Siemens offers legal grace periods.
Let’s tackle this step by step. We will start with the most common causes and move to more specific technical checks. You’ve built a beautiful SCADA system on a
: Alex made sure "Good Manufacturing Practice" was unchecked if they didn't actually need it, as this can trigger additional license prompts.
Select your local drive, and look at the installed keys.
Siemens licensing is complex. You cannot simply buy "WinCC Runtime Advanced." You must buy the correct option .
Verify the exact name of the license; it must be WinCC Logging for Runtime Advanced. : If you have transferred the license but the
If the above steps do not resolve the issue, perform the following advanced troubleshooting:
If you are running a Siemens TIA Portal HMI project and encounter the popup message your logging features have stopped working. This error occurs because WinCC Runtime Advanced requires a specific, separate license to archive data, separate from the standard runtime license.
If you're in Alex's shoes, here is the story of how to clear that error. The Mystery of the Missing Key