100415

Check available disk space

Navigate to HMI → Diagnostics → System data → Memory and check free space on CF card and hard drive. Minimum 50MB free space required.

Use SINUMERIK file manager to view detailed storage allocation

Clear unnecessary files

Delete old alarm logs, trace files, and backup files from /user/sinumerik/data/ directory using HMI file manager.

Never delete system files or active part programs

Verify notebook save operation

Attempt to save operating area notebook again via HMI → Machine → Operating area → Save notebook function.

Monitor system messages during save operation for additional error details

Perform file system check

Boot system to service mode and run CHKDSK utility on CF card and hard drive to identify and repair file system errors.

Always backup critical data before running file system repair utilities

Check system event logs

Navigate to HMI → Diagnostics → Service → System messages and review for disk I/O errors or file system warnings.

Look for error patterns that correlate with notebook save attempts

Test alternative save location

Temporarily redirect notebook saves to USB drive or network location to isolate storage device issues.

Configure alternative path via MD18600 (backup file path) if available

Check CF card write protection

Verify CF card write protection switch is in unlocked position and card is not marked as read-only in system properties.

Some industrial CF cards have hidden write protection that activates after power cycles

Verify user access rights

Ensure current user has sufficient privileges for file operations. Check via HMI → Startup → Access authorization → User management.

Manufacturer access level may be required for system file modifications

Reset file permissions

Use SINUMERIK service functions to reset default file permissions on notebook storage directories (/user/sinumerik/data/notebooks/).

Document current permissions before making changes for rollback purposes

Run storage device diagnostics

Execute built-in diagnostics via HMI → Diagnostics → Hardware → Storage devices to test CF card and hard drive functionality.

Storage device failures can cause data loss - backup immediately if device is still readable

Check hardware connections

Verify CF card is properly seated and IDE/SATA connections to hard drive are secure. Check for corrosion or damage.

Reseat CF card even if it appears properly installed - contact oxidation is common

Replace faulty storage device

If diagnostics confirm hardware failure, replace CF card or hard drive with SIEMENS-approved compatible device and restore from backup.

Use only SINUMERIK-compatible storage devices to avoid compatibility issues