Siemens SINUMERIK codes
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Siemens SINUMERIK Controller

Program/G-code · Intermediate · 30-120 minutes

Alarm 101623

Siemens 840D 101623 - Parameter is indexed

This alarm occurs when a parameter in the CNC program is incorrectly indexed or referenced, often due to syntax errors or unsupported functions. Correct the program or verify control options to resolve it.

Siemens SINUMERIKProgram/G-codeIntermediate30-120 minutes

101623

Siemens 840D 101623 - Parameter is indexed

Parameter is indexed

Siemens SINUMERIK operator message 101623: Parameter is indexed. This is an informational message from the SINUMERIK control indicating a system status or operation result that may require operator action.

Root Cause Summary

This alarm occurs when a parameter in the CNC program is incorrectly indexed or referenced, often due to syntax errors or unsupported functions. Correct the program or verify control options to resolve it.

Safety

  • Refer to Siemens documentation
  • Ensure qualified technician performs repairs

Causes and Fixes

  1. 1

    SAFETY FIRST - Stop machine operation

    Ensure machine is in a safe state, all axes stopped, and spindle off before making any program changes.

  2. 2

    Locate the error

    Check the alarm message for the specific line or block number and open the program in edit mode.

  3. 3

    Fix the indexing

    Correct the parameter reference or syntax error in the identified block. Common issues include incorrect R-parameter indexing or invalid array references.

  4. 4

    Verify program syntax

    Use the control's program check function to validate syntax before execution.

  5. 5

    Test safely

    Clear the alarm, run program in single block mode or simulation first, then test with reduced feedrate and proper workpiece setup.

DIY Feasiblehigh confidence

Call a technician if:

  • ·If the alarm persists after program corrections
  • ·If control configuration issues cannot be resolved

Prevention

  • Validate parameter usage with Siemens programming manuals
  • Simulate programs before execution to catch syntax errors

Common Mistakes

  • Overlooking the specific parameter in the alarm message
  • Assuming all parameters are supported on every control version

Seeing Multiple Alarms?

Seeing another alarm with this one? Enter the code.

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Always verify with your machine manual or a certified technician before performing service procedures.