231-F000

CC%2 S-function call error %1

Heidenhain · TNC CNC Controllers

What does 231-F000 mean?

This error indicates an internal software error within the Heidenhain TNC CNC Controller related to the calling of an S-function. An S-function call error suggests a critical problem within the controller's operating system or application software, which can lead to unexpected machine behavior, system instability, or a complete system crash.

Common Causes

  • Corruption of the controller's operating system or critical application software files.
  • Incompatibility between different software modules or versions installed on the TNC controller.
  • A software bug within the installed firmware, leading to an incorrect or failed S-function call.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Note the full error message, including the '%1' parameter, as it may provide additional context to Heidenhain service personnel.

  2. 2

    Verify the current software version installed on the Heidenhain TNC CNC Controller.

  3. 3

    Check for any available software updates or patches that address known S-function related issues or general software stability improvements.

  4. 4

    Perform a controlled restart of the TNC controller to clear any temporary software states or memory errors.

  5. 5

    If the error persists, contact a Heidenhain service agency for deeper analysis of the software logs and potential reinstallation of the operating system or application software.

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Verified technical data. Last updated: March 2026

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Source: Heidenhain TNC CNC Controllers