Runtime Advanced Link ~upd~ | License Key Not Available Wincc Logging For
Resolving the "License Key Not Available" Error for WinCC Logging in Runtime Advanced
Step-by-step fix:
-
Check which licenses you actually have:
- Open Automation License Manager (ALM)
- Look for:
WinCC Runtime Advanced (base runtime)
WinCC Logging (needed for archiving/logging)
- If you only see the base license, you need to purchase
6AV2105-0xxxx (Logging for RT Advanced)
-
If you have the license but it's not detected:
- In ALM, right-click the license → Check consistency
- Ensure the license is transferred to the local PC (not left on a USB stick unless stick is always plugged in)
- Restart the
SIAX S7 USB License Manager service (Windows services)
-
For trial/test (30 days):
- Download Simulation License from Siemens (Trial licenses for WinCC Logging exist)
- Install via ALM →
Licenses → Install → select trial license file
-
Correct licensing for Runtime Advanced link:
- The "Runtime Advanced link" is just a shortcut to start the runtime. It doesn't cause the license error – logging does.
- To verify: Start runtime without logging tags. If it works, logging license is the missing piece.
-
Workaround (development only):
- Use Simulation Tags (no archiving) to bypass logging
- Or use WinCC Professional (includes logging in higher tiers)
Phase 5: Hardware Changes and Disk Imaging
Industrial PCs often have system images deployed. If you cloned a working PC to another, the license link breaks because the hardware ID (hard drive serial, MAC address) changed.
Solution:
- On the source PC (before cloning), use ALM to return the license to a license file (
*.LicenseFile).
- Clone the PC.
- On the target PC, use ALM to transfer the license from the file to the local hard drive. This re-binds the license to the new hardware.
- Warning: If you already cloned without returning the license, you must contact Siemens support to reset the license binding. This is a painful, slow process.
2. License Type Mismatch
Siemens licenses come in different types:
- Floating License (USB Dongle/ALM Server): Must be accessible over the network or via a physical USB key.
- Single-Station License (Disk-based): Tied to the hard drive or computer fingerprint.
- Trial License: Limited time; may have expired.
If you purchased a dongle but the software is looking for a disk-based license, the error appears. Resolving the "License Key Not Available" Error for
Typical Scenarios Where This Error Appears
- During Runtime Start: The application loads, but the archiving subsystem fails to initialize.
- After a Grace Period: WinCC often provides a 7-day or 21-day trial grace period. Once that expires without a proper license, this error appears.
- After Hardware Changes: Changing a network card, motherboard, or even moving the license to a different USB port can invalidate the license link.
- During Archiving Configuration: When you add a new log (e.g., a tag log for a PID loop), the system checks for available logging points and fails.
2. Common causes & fixes
| Issue | Solution |
|-------|----------|
| License not installed | Install using Automation License Manager (ALM) |
| License on wrong storage medium | Move license to local hard drive (ALM → Drag & drop) |
| License file corrupted | Re-download from Siemens Industry Mall or your SW package |
| Wrong version (e.g., TIA V15 license used on V17) | Licenses are version-specific → upgrade license |
| Trial license expired | Purchase full license |
| Network license not found | Check ALM → ensure license server is reachable |
Verification
- After resolving, open WinCC Runtime and check:
- Logging services start without error.
- Message archives/audit trails populate entries.
- License Manager shows the Runtime Advanced licensing option as "valid" and assigned.