What causes Siemens SINUMERIK alarm 100501?

Normal system operation generated this status message. User action or program command triggered this notification. Machine data or parameter change created this notification. System startup or initialization process generating a status report.

How do I fix Siemens SINUMERIK alarm 100501?

1. Read the full message text displayed on the SINUMERIK screen for complete details. 2. If action is required, follow the instructions shown in the message. 3. Consult the SINUMERIK alarm manual for alarm 100501 for detailed information about this message. 4. If the message appears unexpectedly, check recent parameter changes or program modifications. 5. For recurring messages, contact Siemens technical support or the machine builder.

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Siemens SINUMERIK Controller

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

Alarm 100501

Siemens 840D 100501 - COMIC: Function not available HMI(.)

SIEMENS alarm 100501 indicates that a COMIC (Communication Interface Controller) function is not available on the HMI, typically due to missing software options, incorrect licensing, or communication interface configuration issues. This alarm occurs when the system attempts to access COMIC functionality that is either not installed, not properly licensed, or not configured correctly in the SINUMERIK system.

Siemens SINUMERIKProgram/G-codeIntermediate30-120 minutes

100501

Siemens 840D 100501 - COMIC: Function not available HMI(.)

COMIC: Function not available HMI(.)

Root Cause Summary

SIEMENS alarm 100501 indicates that a COMIC (Communication Interface Controller) function is not available on the HMI, typically due to missing software options, incorrect licensing, or communication interface configuration issues. This alarm occurs when the system attempts to access COMIC functionality that is either not installed, not properly licensed, or not configured correctly in the SINUMERIK system.

Safety

Refer to Siemens documentation
Ensure qualified technician performs repairs

Causes and Fixes

1
Check installed software options
Navigate to HMI → Commissioning → System data → Software options and verify COMIC option is listed and activated.
2
Verify license status
Access Service → System data → License keys and confirm COMIC license is valid and not expired.
3
Install missing option
If COMIC option is missing, install via SIMATIC Manager or contact Siemens for proper licensing.
System restart required after software installation
4
Activate and restart
Activate the COMIC option in software configuration and perform complete system restart (NCK + HMI).

DIY Feasiblemedium confidence

Call a technician if:

·Software installation required
·Hardware interface module suspected
·Multiple communication errors present

Prevention

Regular backup of COMIC configuration
Monitor software license expiration dates
Maintain stable network configuration
Perform periodic communication diagnostics

Common Mistakes

Forgetting to restart NCK after configuration changes
Incorrect IP address configuration
Attempting to use COMIC without proper licensing
Modifying machine data without backup

Related Alarms

100500 100502 380001 380010

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Always verify with your machine manual or a certified technician before performing service procedures.