What causes Siemens SINUMERIK alarm 102004?

Required machine data or parameter not configured for the requested function. Option bit not set in SINUMERIK to enable the required functionality. Program references a function or axis that has not been configured. Machine commissioning incomplete — required setup step was not performed. Configuration data cleared or lost due to a parameter reset or hardware change.

How do I fix Siemens SINUMERIK alarm 102004?

1. Read the full alarm message to identify what is missing (axis name, parameter number, function name). 2. Consult the SINUMERIK alarm manual for alarm 102004 for the specific configuration requirement. 3. Check the relevant machine data group and set the required parameter. 4. If a specific option is required, verify it is licensed and enabled in the SINUMERIK option settings. 5. Power cycle after making configuration changes to apply the new settings.

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Siemens SINUMERIK Controller

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

Alarm 102004

Siemens 840D 102004 - No name entered

Alarm 102004 indicates that a required name parameter has been omitted in the NC program or machine data configuration. This typically occurs when using functions or commands that require explicit naming of tools, workpieces, programs, or variables but the name field was left blank. The alarm prevents execution until the missing name is provided.

Siemens SINUMERIKProgram/G-codeIntermediate30-120 minutes

102004

Siemens 840D 102004 - No name entered

No name entered

Root Cause Summary

Alarm 102004 indicates that a required name parameter has been omitted in the NC program or machine data configuration. This typically occurs when using functions or commands that require explicit naming of tools, workpieces, programs, or variables but the name field was left blank. The alarm prevents execution until the missing name is provided.

Safety

Refer to Siemens documentation
Ensure qualified technician performs repairs

Causes and Fixes

1
Review the NC program at the line where the alarm occurred. Check for CALL, EXTCALL, or program selection commands.
2
Verify that all subroutine calls include the complete program name with proper syntax (e.g., EXTCALL "PROGRAM_NAME" or L10 for labels).
Ensure the program name exists in the part program directory or NC memory
3
Check for empty quotation marks ("") or missing parameters in program call statements.
4
Correct the program by entering the required name parameter, save, and reset the alarm with NC START or RESET key.

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