101401

Access HMI Service mode and navigate to Startup > General > License to view all installed licenses and their expiration dates.

Review the NC program for functions requiring special licenses (transformations like TRANSMIT, TRACYL, kinematic transformations, or technology-specific G-codes).

Compare required software options against installed license list. Note any missing or expired options.

Contact Siemens or authorized distributor with control serial number and NCU identification to purchase or renew required license keys, then install via CF card or network update.

System backup recommended before installing new license keys

Power down the system completely and reseat the CompactFlash card in the NCU to ensure proper contact.

Ensure machine is in safe state and all axes are secured before power down

Restart the system and check Diagnosis buffer for additional file system or CF card related alarms (160xx, 170xx series).

Restore license keys from backup archive if available, or re-enter license keys manually via HMI Service mode > Startup > General > License.

Perform a file system consistency check using system diagnostics, and if CF card errors persist, replace CompactFlash card and restore system from backup.

Always maintain current backup before CF card replacement

Check machine data MD10000 (BASIC_FUNCTION_MASK) and MD10010 (FUNCTION_MASK_USER) to identify which software functions are enabled and compare to hardware configuration.

Verify number of configured axes/spindles in channel configuration against licensed axis count shown in license display.

Document all recent hardware changes including NCU model, axis cards, and communications modules with serial numbers.

Order updated license package from Siemens matching current hardware configuration, specifying NCU serial number and all installed components.

New hardware licenses are typically tied to specific NCU serial numbers and are non-transferable