Contact Siemens support or your Siemens distributor if:
If the troubleshooting above confirms you lack the license, you must purchase it. The correct part numbers (MLFB) are:
| Product Description | Order Number (MLFB) | | :--- | :--- | | Powerpack "Logging" for WinCC Runtime Advanced (128 tags) | 6AV2105-0EA02-0AA0 | | Powerpack "Logging" for WinCC Runtime Advanced (512 tags) | 6AV2105-0EA02-0AA5 | | Powerpack "Logging" for WinCC Runtime Advanced (2048 tags) | 6AV2105-0EA02-0AA2 | | WinCC Runtime Advanced 4096 + Logging (full bundle) | 6AV2103-0DA02-0AA0 | Contact Siemens support or your Siemens distributor if:
Note: Part numbers change with TIA Portal versions. Always verify with your local Siemens distributor or the Siemens Industry Mall.
After purchasing, you will receive a license key file (.axf or .alf). Install it via Automation License Manager using License > Transfer. | Cause | Description | |-------|-------------| | Missing
| Cause | Description | |-------|-------------| | Missing license | No valid license for WinCC Logging (e.g., “WinCC Logging for Runtime Advanced”) is installed on the target runtime machine. | | Incorrect license type | A standard WinCC Runtime license (without Logging option) is installed but does not cover data logging. | | License not activated | License exists on the drive but not transferred (e.g., not activated via Automation License Manager). | | Wrong license version | License is for an older or newer version of WinCC/TIA Portal and not backward/forward compatible. | | License key not found | ALM (Automation License Manager) cannot locate the license (wrong drive, network issue, USB dongle not inserted). | | Trial license expired | A trial or demo license was previously used and has expired. | | Runtime Advanced vs Professional | Using Runtime Advanced but license is for Runtime Professional (or vice versa), or missing the logging add-on specifically. |
Follow these steps in order. The solution is almost always one of the following. Contact Siemens support or your Siemens distributor if:
Siemens licenses are stored on physical USB sticks (Memory Cards) or software containers (C2V files).
To fix the problem, you must understand what Siemens licenses are and how they work. Unlike simple software keys, Siemens uses a metered licensing model based on "PowerTags" and "Archiving Tags."