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Siemens SINUMERIK Controller
Program/G-code · Intermediate · 30-120 minutes
Siemens 840D 102001 - No data selected
Alarm 102001 occurs when the control system attempts to execute an operation but cannot find the required data selection or reference. This typically happens during program editing, data management operations, or when attempting to modify settings without first selecting the target element. The alarm is a user interface protection mechanism preventing invalid operations.
102001
Siemens 840D 102001 - No data selected
No data selected
Siemens SINUMERIK alarm 102001: No data selected. This alarm indicates a required configuration element, parameter, or program component is missing or has not been set up.
Root Cause Summary
Alarm 102001 occurs when the control system attempts to execute an operation but cannot find the required data selection or reference. This typically happens during program editing, data management operations, or when attempting to modify settings without first selecting the target element. The alarm is a user interface protection mechanism preventing invalid operations.
Safety
- Refer to Siemens documentation
- Ensure qualified technician performs repairs
Causes and Fixes
- 1
Press the PROGRAM MANAGER key or navigate to the program directory menu.
- 2
Use cursor keys or touchscreen to highlight the desired program or file in the list.
- 3
Press SELECT or INPUT key to confirm selection before attempting the intended operation.
- 4
Retry the original operation (edit, delete, execute, etc.) with the file now properly selected.
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Always verify with your machine manual or a certified technician before performing service procedures.