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Siemens SINUMERIK Controller
Program/G-code · Intermediate · 30-120 minutes
Siemens 840D 105041 - Block number will be too large !
This alarm occurs when the block number in the program exceeds 999999 due to the set increment and program size. Reduce the block numbering increment or shorten the program to resolve.
105041
Siemens 840D 105041 - Block number will be too large !
Block number will be too large !
Siemens SINUMERIK message 105041: Block number will be too large!. 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
This alarm occurs when the block number in the program exceeds 999999 due to the set increment and program size. Reduce the block numbering increment or shorten the program to resolve.
Safety
- Refer to Siemens documentation
- Ensure qualified technician performs repairs
Causes and Fixes
- 1
Check block increment
Review the block number increment setting in the program or control settings.
- 2
Adjust increment
Reduce the increment value to ensure block numbers stay below 999999.
- 3
Test program
Clear the alarm and run a simulation to verify the fix.
Call a technician if:
- ·If the alarm persists after adjusting increment and program size
- ·If control settings cannot be modified due to access restrictions
Prevention
- Use smaller block number increments (typically 1-10)
- Monitor program size during development
- Establish programming standards for block numbering in your facility
Common Mistakes
- Overlooking the increment setting in the control
- Not checking total block count before execution
Seeing Multiple Alarms?
Seeing another alarm with this one? Enter the code.
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