# ID 21401

Programmed PATH_DEV not allowed.
Description | If, during the extended HSC programming (#HSC ON/OFF [BSPLINE...]), the keyword MERGE is set on 1 (TRUE), the deviation from path contour PATH_DEV must also be programmed with a value unequal to zero (nil).
Response | Class | 2 | Abort NC program processing.
Solution | Class | 3 | Check and modify the NC program. Program the deviation from path contour PATH_DEV with a value unequal to zero or completely remove it from the command (in this case the related default value is valid, see [PROG]).
Parameter | %1: | Error value [-]
Error type | 1, Error message from NC program.