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Siemens SINUMERIK Controller
Program/G-code · Intermediate · 30-120 minutes
Siemens 840D 104113 - PA: Error on reading tool number
Alarm 104113 occurs when the control system cannot correctly read or interpret a tool number from the NC program. This typically results from invalid tool number syntax, tool numbers outside the valid range defined in machine data, or corruption in the tool management data structure.
104113
Siemens 840D 104113 - PA: Error on reading tool number
PA: Error on reading tool number
Siemens SINUMERIK alarm 104113: PA: Error on reading tool number. This alarm indicates an error condition in the NC program or control configuration that must be resolved before the operation can continue.
Root Cause Summary
Alarm 104113 occurs when the control system cannot correctly read or interpret a tool number from the NC program. This typically results from invalid tool number syntax, tool numbers outside the valid range defined in machine data, or corruption in the tool management data structure.
Safety
- Refer to Siemens documentation
- Ensure qualified technician performs repairs
Causes and Fixes
- 1
Identify the NC program block where the alarm occurred and examine the T-word (tool call) for proper syntax and valid numeric values.
- 2
Check MD18110 MM_NUM_TOOL to verify the maximum tool number allowed in the system configuration.
- 3
Verify that the tool number in the program is within the range of 1 to the value defined in MD18110.
- 4
Correct the tool number in the NC program to a valid value within the allowable range and rerun the program.
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