Siemens SINUMERIK codes
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Siemens SINUMERIK Controller

Servo/Axis · Intermediate · 30-120 minutes

Alarm 6582

Siemens 840D 6582 - NC machine OEM memory full

Alarm 6582 indicates the DRAM file system allocated to the machine OEM (Original Equipment Manufacturer) area has exhausted available storage capacity, preventing new part program or data writes. This typically occurs when OEM-specific functions, custom macros, or diagnostic data accumulate beyond the configured memory partition defined by MD 20090 (OEM memory size).

Siemens SINUMERIKServo/AxisIntermediate30-120 minutes

6582

Siemens 840D 6582 - NC machine OEM memory full

NC machine OEM memory full

Siemens SINUMERIK alarm 6582: NC machine OEM memory full. This alarm indicates a fault or error condition on the SINUMERIK 840D control. Refer to the Siemens SINUMERIK alarm documentation for the complete description and remedy.

Root Cause Summary

Alarm 6582 indicates the DRAM file system allocated to the machine OEM (Original Equipment Manufacturer) area has exhausted available storage capacity, preventing new part program or data writes. This typically occurs when OEM-specific functions, custom macros, or diagnostic data accumulate beyond the configured memory partition defined by MD 20090 (OEM memory size).

Safety

  • Refer to Siemens documentation
  • Ensure qualified technician performs repairs

Causes and Fixes

  1. 1

    Access Siemens HMI or SINUMERIK Operate interface and navigate to Maintenance → Memory Management → OEM Memory to view current utilization percentage.

  2. 2

    Back up OEM data via Automation License Manager (ALM) or direct FLOPPY/USB export, then delete obsolete macro versions, debug routines, or unused cycle definitions from NCK → Machine → OEM Data → Delete.

    Ensure backup is validated before deletion to prevent loss of critical OEM functions.

  3. 3

    If necessary, increase MD 20090 (OEM memory size) in step 7 parameters, then perform warm restart (Ctrl+Shift+F11) to reallocate the expanded partition.

  4. 4

    Verify alarm clears by attempting to load a test part program; if alarm persists, check MD 20091 (OEM memory reserved) to ensure sufficient headroom (typically 10-15% of allocated size).

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