
axismd.ai
Siemens SINUMERIK Controller
Program/G-code · Intermediate · 30-120 minutes
Siemens 840D 100140 - Please wait, reading file.
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.
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
Causes and Fixes
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.
Monitor system memory usage
Access Diagnostics → Service → Memory and check available RAM. Insufficient memory (below 20%) can slow file operations significantly.
Optimize file structure
Break large programs into smaller subroutines or use external subroutine calls to reduce memory load during file reading operations.
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
Call a technician if:
Prevention
Common Mistakes
Seeing Multiple Alarms?
Seeing another alarm with this one? Enter the code.
AxisMD logs alarms against your actual machines, tracks patterns, and gives AI context your manual doesn't have.
Start freeWas this guide helpful?
Always verify with your machine manual or a certified technician before performing service procedures.