The machine is running. The PLC is cycling. But your production data? It’s falling into a black hole.
If a license is shown as defective in ALM, you may need to contact Siemens Technical Support to have it restored using your Certificate of License (CoL). : The machine is running
Verify the license version matches your installed TIA Portal version (e.g., V17, V18). Note that newer licenses are generally downward compatible. 3. Update the License Manager It’s falling into a black hole
: Licenses can be marked as "defective" if the PC or Industrial PC (IPC) is not shut down properly, preventing the runtime from releasing the license correctly. Note that newer licenses are generally downward compatible
Sometimes, the AX NF ZZ file (the license certificate) gets corrupted or moved. If you are using a (no dongle) and your hard drive changes drive letters, or you restore a PC image, the license becomes an orphan.
, checking the box for "GMP" or "Audit Trail" often triggers additional license requirements.