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Siemens SINUMERIK Controller
Program/G-code · Intermediate · 30-120 minutes
Siemens 840D 103015 - NOTICE! Dimension system is changed from inch to metric
This is an informational notice, not a fault alarm. The control is confirming that the dimensional measurement system has been switched from inch (G70) to metric (G71) mode, typically due to a G-code command in the part program or manual operator intervention via the HMI.
103015
Siemens 840D 103015 - NOTICE! Dimension system is changed from inch to metric
NOTICE! Dimension system is changed from inch to metric
Siemens SINUMERIK operator message 103015: NOTICE! Dimension system is changed from inch to metric. 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 is an informational notice, not a fault alarm. The control is confirming that the dimensional measurement system has been switched from inch (G70) to metric (G71) mode, typically due to a G-code command in the part program or manual operator intervention via the HMI.
Safety
- Refer to Siemens documentation
- Ensure qualified technician performs repairs
Causes and Fixes
- 1
Review the active part program for G71 or G710 commands that initiate metric mode.
- 2
Verify that all dimensional values following the G71 command are programmed in millimeters, not inches.
Programming inch values after G71 will cause parts to be machined 25.4 times smaller than intended.
- 3
Check the program header and ensure consistent dimensional system usage throughout the program.
- 4
Acknowledge the message and continue operation if the dimensional change is intentional.
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