To enable tag or alarm logging on a PC-based Runtime Advanced system, you must install the following additional license: : WinCC Logging for Runtime Advanced
: If the license was previously working but suddenly shows as "not available," it may be marked as "defective" in the Automation License Manager (ALM) To enable tag or alarm logging on a
The "License key not available" error for WinCC Logging Runtime Advanced To enable tag or alarm logging on a