Your trends are frozen. Your data logs are empty. Production data is not being recorded.
requires a specific "WinCC Logging for Runtime Advanced" license (e.g., MLFB: 6AV2107-0GA00-0BB0 If you don't actually need logging, go to Historical Data Your trends are frozen
Before purchasing new software, verify exactly what the system is requesting. requires a specific "WinCC Logging for Runtime Advanced"
: If you already have the license but still see the error, open the Automation License Manager and check if the key is marked as "defective". This can happen if the IPC/PC was shut down improperly without closing the Runtime first. Your trends are frozen
. It will not stop the simulation from working, though it may reappear every few minutes.
If you have ever stared at the alarm buffer of a Siemens HMI, wondering why your data logs look like Swiss cheese—full of holes—you might have met the silent killer of industrial data integrity: