CNC machine stops for dwell period (may be X, U, or P).

The dwell period is specified by a control parameter (may be X, U, or P) which determines the time unit (seconds, milliseconds, etc.), typically X and U set to milliseconds, P sets seconds.

G04 command is non-modal. 

Example for CNC (G-code) G04 command:

G04 P10 ; Ten-second pause

Back to list of CNC G Codes and CNC M-codes