When starting or using SIMATIC WinCC (Runtime Advanced) logging, you see an error like:
: Check the status in ALM. If marked defective, you may need to contact Siemens Technical Support to have it restored. 3. Check Project Configuration
The error "License key not available! WinCC Logging for Runtime Advanced" occurs because for PC-based WinCC Runtime Advanced systems . Unlike Siemens Comfort Panels, which include logging functionality by default, PC runtimes require an additional license for any tag or alarm logging. Common Causes & Solutions
