Siemens SINUMERIK codes
Siemens SINUMERIKProgram/G-codeIntermediate30-120 minutes

100140

Siemens 840D 100140 - Please wait, reading file.

Please wait, reading file.

Siemens SINUMERIK message 100140: Please wait, reading file. This is an operator information message from the SINUMERIK control. Note the complete message text as it may contain important parameter values.

Root Cause Summary

SIEMENS alarm 100140 occurs during file system operations when the SINUMERIK control is reading configuration files, part programs, or system data. This informational alarm typically appears during startup, program loading, or when accessing files from the CF card or network drives.

Safety

  • Refer to Siemens documentation
  • Ensure qualified technician performs repairs

Causes and Fixes

  1. 1

    Check file size and complexity

    Navigate to HMI → Program Manager and verify the size of the file being loaded. Files over 10MB or programs with complex subroutines may trigger extended read times.

  2. 2

    Monitor system memory usage

    Access Diagnostics → Service → Memory and check available RAM. Insufficient memory (below 20%) can slow file operations significantly.

  3. 3

    Optimize file structure

    Break large programs into smaller subroutines or use external subroutine calls to reduce memory load during file reading operations.

  4. 4

    Verify CF card performance

    Check CF card read speed in Startup → Commissioning → Memory Cards. Replace if read speed is below 15MB/s.

    Use industrial-grade CF cards rated for continuous operation in CNC environments

DIY Feasiblehigh confidence

Call a technician if:

  • ·CF card replacement required
  • ·Network infrastructure changes needed
  • ·Persistent file corruption errors

Prevention

  • Regular CF card replacement every 3-5 years
  • Maintain network infrastructure
  • Perform regular file system cleanup
  • Monitor system memory usage

Common Mistakes

  • Interrupting file operations during this alarm
  • Using consumer-grade CF cards
  • Ignoring network latency issues
  • Not maintaining adequate free memory

Related Alarms

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