: Resetting the system clock to an earlier time can invalidate installed licenses. Simulation Mode
Open the on the runtime machine.
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.
Logging in demo mode inserts random "Demo" watermarks into your CSV exports. Do not use this for production QA reports. Use it only to prove the hardware works. : Resetting the system clock to an earlier
The error occurs because the logging functionality (tag and alarm logging) requires a separate, dedicated license that is not included with the standard WinCC Runtime Advanced powerTags license. Unlike Siemens Comfort Panels, which include logging features for free, PC-based Runtime Advanced stations treat logging and recipes as optional add-ons. Root Causes & Troubleshooting
The license key may still be on the USB stick provided by Siemens. Use the on the IPC/Engineering Station to transfer the license from the USB stick to the local drive (usually C:\ or D:\ ). B. License is "Defective"
Understanding why this error happens and knowing how to resolve it via the is critical to restoring system functionality. Why Does This Error Occur? You have configured data logs for batch reports,
If the Runtime was active on an Industrial PC (IPC) and the power failed or the computer was shut down improperly, the license key can become "defective," showing a red symbol in the Automation License Manager .
Ensure the Startup type is set to so it boots correctly upon future system reboots. 3. Reconfigure the TIA Portal Project
but the key is missing or defective, you may need to contact Siemens Technical Support to restore it. 3. Purchase the Correct Key Use it only to prove the hardware works
Siemens licensing is complex. You cannot simply buy "WinCC Runtime Advanced." You must buy the correct option .
If you choose not to purchase or install the "WinCC Logging for Runtime Advanced" license, the consequences will directly impact your plant floor data integrity: