CC%2 Illegal MC software installed

What does 231-E026 mean?

This error indicates that the Heidenhain TNC CNC Controller has detected an unauthorized or incorrect software version of the MC (Machine Control) software, specifically an autotest version. Installing incompatible or non-production software can lead to unpredictable machine behavior, system instability, and potential safety hazards, as it may not be fully tested or certified for operational use.

• Installation of an incorrect or unapproved MC software version (e.g., development or autotest version) on the controller.
• Corruption during a software update process, leading to the system recognizing an invalid software state.
• Attempt to use MC software that is not compatible with the specific hardware configuration of the TNC controller.

Click steps to track your progress.

1. 1

   Immediately identify and verify the exact software version installed on the MC module of the Heidenhain TNC CNC Controller.

2. 2

   Compare the installed version against the official, supported production software versions specified by Heidenhain for your specific machine and controller model.

3. 3

   Prepare to perform a software downgrade or upgrade to install the correct and approved production version of the MC software.

4. 4

   Ensure a full backup of all existing machine parameters, programs, and system data is performed before initiating any software changes.

5. 5

   If unable to resolve the issue independently, contact a Heidenhain service agency for assistance in correctly updating or reinstalling the MC software.