What causes Siemens SINUMERIK alarm 101115?

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 101115?

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 101115 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 101115

Siemens 840D 101115 - No FDD configured !

Alarm 101115 indicates the control system cannot access FDD (Floppy Disk Drive) or SLM (Service Laptop Module) device configuration during startup. This occurs when machine data references FDD/SLM drives that are either not physically present, improperly configured in commissioning parameters, or when the system initialization sequence is incomplete.

Siemens SINUMERIKProgram/G-codeIntermediate30-120 minutes

101115

Siemens 840D 101115 - No FDD configured !

No FDD configured !

Root Cause Summary

Alarm 101115 indicates the control system cannot access FDD (Floppy Disk Drive) or SLM (Service Laptop Module) device configuration during startup. This occurs when machine data references FDD/SLM drives that are either not physically present, improperly configured in commissioning parameters, or when the system initialization sequence is incomplete.

Safety

Refer to Siemens documentation
Ensure qualified technician performs repairs

Causes and Fixes

1
Enter service mode and access machine data (MD) via HMI Commissioning menu or SINUMERIK Operate -> Commissioning -> Machine Data.
2
Check MD11210 (ASSIGN_DRVIE_TO_NAME) and MD11200 (DEVICE) for FDD or SLM drive assignments. Note any references to drive letters or device types that should not exist.
3
Remove or comment out unnecessary FDD/SLM device assignments from MD11200 and MD11210. Set unused device entries to empty strings or valid existing devices.
Backup all machine data before modification. Incorrect device configuration can prevent system boot.
4
Perform a Power-On Reset (POR) via HMI: Commissioning -> System -> Boot System, or cycle NCK power completely. Verify alarm clears on restart.

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