# ID 20770

Illegal selection of operation modes.
Description | A combination of operating mode settings is selected, and that is not permitted. Examples for settings of operation modes:

- Command contour visualisation
- Syntax check
- Online production time calculation

The error is detected during the assignment of the NC program.

Response | Class | 3 | Abort NC program processing.
Solution | Class | 6 | Check and modify the settings of operation modes.
Parameter | %1: | Error value [-]
Error type | -