Siemens SINUMERIK 840D sl Programming Manual page 416

Supplementary commands
14.10 Dwell time (G4)
Note
Addresses F and S are only used for time parameters in the G4 block. The feedrate F...
and the spindle speed S... programmed upstream of the G4 block are retained.
Example
Program code
N10 G1 F200 Z-5 S300 M3
N20 G4 F3
N30 X40 Y10
N40 G4 S30
N50 X...
416
Comment
; Feedrate F, spindle speed S
; Dwell time: 3 s
; Dwelling 30 revolutions of the spindle (at S=300 rpm
and 100% speed override, corresponds to t = 0.1
min).
; The feedrate and spindle speed programmed in N10
continue to apply.
Programming Manual, 09/2011, 6FC5398-1BP40-2BA0
Fundamentals