Siemens SINUMERIK codes
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Siemens SINUMERIK Controller

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

Alarm 109011

Siemens 840D 109011 - Switchover: trace file cannot be created

Siemens SINUMERIK alarm 109011: Switchover: trace file cannot be created. This alarm indicates an error condition in the NC program or control configuration that must be resolved before the operation can continue.

Siemens SINUMERIKProgram/G-codeIntermediate30-120 minutes

109011

Siemens 840D 109011 - Switchover: trace file cannot be created

Switchover: trace file cannot be created

Siemens SINUMERIK alarm 109011: Switchover: trace file cannot be created. This alarm indicates an error condition in the NC program or control configuration that must be resolved before the operation can continue.

Safety

  • Refer to Siemens documentation
  • Ensure qualified technician performs repairs

Common Causes

  • Part program contains an illegal or unsupported command for the current machine configuration
  • Parameter or machine data setting incompatible with the commanded operation
  • Required option or function not enabled on this SINUMERIK control
  • Incorrect axis assignment or configuration for the commanded function
  • Software version or compile cycle version mismatch

Troubleshooting Steps

  1. 1Note the full alarm message including any parameter values shown (e.g., axis number, block number, channel).
  2. 2Identify the program block or operation that triggered the alarm.
  3. 3Review the SINUMERIK alarm manual for alarm 109011 to identify the specific cause and remedy.
  4. 4Check the relevant machine data parameters referenced in the alarm.
  5. 5If the alarm persists after correcting the program, contact Siemens technical support with the full alarm text and machine data backup.

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