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Wait 5-15 seconds for the system to complete the data validation process - this is normal behavior.

If the delay exceeds 30 seconds, press the RECALL key to cancel the current operation and return to the previous screen.

Access machine data lists in smaller sections (filter by specific MD numbers or groups) to reduce processing time.

If alarm persists continuously without completing, check for corrupted machine data files and consider a control restart.

Save all active programs and clear the working memory before restart

Navigate to Settings → Display → Machine Data Filter and review active filter settings.

Temporarily disable complex filters or search criteria to determine if processing speed improves.

Use specific MD number entry (direct input) instead of browsing complete lists when accessing known parameters.

Clear any unnecessary search filters or sort options that may be active in the machine data display area.

Check NCK memory utilization in Diagnostics → Memory to ensure sufficient free space (minimum 20% recommended).

Archive and delete old programs, logs, and temporary files from the NCK and HMI hard drive to free system resources.

Always backup critical data before deletion

Perform a cold restart (power cycle) of the control to clear memory buffers and reset display processing.

Coordinate with production - machine will be unavailable for 5-10 minutes

If problem continues, backup machine data and perform a file system integrity check or contact Siemens service for CompactFlash/CF card diagnostics.

Requires service access level and potential system downtime