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Siemens SINUMERIK Controller
Program/G-code · Intermediate · 30-120 minutes
Siemens 840D 101634 - Write access only in start-up state Techn.Application/Units (p10=5).
Alarm 101634 occurs when attempting to modify protected machine data (MD) or setting data (SD) related to Technical Applications or Units while the system is not in the proper startup mode. These parameters can only be changed when the control is in startup state with access level p10=5 (OEM startup level).
Siemens 840D 101634 - Write access only in start-up state Techn.Application/Units (p10=5).
Write access only in start-up state Techn.Application/Units (p10=5).
Siemens SINUMERIK operator message 101634: Write access only in start-up state Techn.Application/Units (p10=5). This is an informational message from the SINUMERIK control indicating a system status or operation result that may require operator action.
Root Cause Summary
Alarm 101634 occurs when attempting to modify protected machine data (MD) or setting data (SD) related to Technical Applications or Units while the system is not in the proper startup mode. These parameters can only be changed when the control is in startup state with access level p10=5 (OEM startup level).
Safety
Causes and Fixes
Press the 'Services' or 'Startup' softkey on the HMI to enter commissioning mode.
Navigate to Commissioning > Machine Data or Setting Data menu depending on parameter type.
Enter password level 5 (p10=5) - typically 'SUNRISE' or OEM-specific password to gain OEM startup access.
Modifying machine data at this level can affect machine safety and performance. Document all changes.
Make the required parameter changes, save the data, and perform a control reboot (Power ON) to activate changes.
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