# ID 20237

Unexpected ENDWHILE. Does not match the current control block.
Description | A control block statement was programmed in incomplete syntax. A $ENDWHILE can only be programmed in combination with a previous $WHILE. Example: Wrong: N10 G00 X0 Y0 Z0 P1=1 N20 $ENDWHILE

:

N1000 M30

Correct:

N10 G00 X0 Y0 Z0 P1=1

N15 $WHILE P1>0

:

N20 $ENDWHILE

:

N1000 M30

For further information see [PROG// Section: Verification of running condition at loop start]

Response | Class | 2 | Abort NC program processing.
Solution | Class | 3 | Check and modify the program flow sequence. Insert the $WHILE instruction or delete the $ENDWHILE.
Error type | 11, Error message from NC program.