Siemens SINUMERIK codes
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Siemens SINUMERIK Controller

Program/G-code · Intermediate · 30-120 minutes

Alarm 101636

Siemens 840D 101636 - Write access only in start-up state Download (p10=29).

Alarm 101636 indicates an attempt to modify protected system data or parameters that can only be changed when the control is in the specific start-up state Download (p10=29). This alarm occurs when write operations are attempted in normal operating mode on data reserved for commissioning or system configuration changes.

Siemens SINUMERIKProgram/G-codeIntermediate30-120 minutes

101636

Siemens 840D 101636 - Write access only in start-up state Download (p10=29).

Write access only in start-up state Download (p10=29).

Siemens SINUMERIK operator message 101636: Write access only in start-up state Download (p10=29). 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 101636 indicates an attempt to modify protected system data or parameters that can only be changed when the control is in the specific start-up state Download (p10=29). This alarm occurs when write operations are attempted in normal operating mode on data reserved for commissioning or system configuration changes.

Safety

  • Refer to Siemens documentation
  • Ensure qualified technician performs repairs

Causes and Fixes

  1. 1

    Press RECALL key, then select 'Start-up' from the operating area menu

  2. 2

    Navigate to 'Special functions' and set switch p10 to position 29 (Download mode)

    This mode disables safety functions - ensure machine is in safe state and production is stopped

  3. 3

    Perform the required parameter write or configuration change

  4. 4

    Reset p10 to normal operating position (0) and perform a control restart to activate changes

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