Siemens Sinumerik 840D sl Programming Manual page 80

Additional functions
4.1 Program supporting functions
Restrictions
Changeover of the axes
Before changing over the drilling axis, one must first deselect the fixed cycle.
Deep-hole drilling
The drilling cycle is executed only if an axis motion, e.g., is programmed with X, Y, Z or R.
Q/R
Always program Q and R in one block with an axis motion, otherwise the programmed
values will not be stored modally.
Deselection
The G functions of Group 01 (G00 to G03) and G73 should not be used together in one
block, as otherwise G73 is deselected
Example
M3 S1500
G90 G0 Z100
G90 G99 G73 X200. Y-150. Z-100.
R50. Q10. F150.
Y-500.
Y-700.
X950.
Y-500.
G98 Y-700.
G80
G28 G91 X0 Y0 Z0
M5
80
;Rotary motion of stem
;Positioning, drilled hole 1,
;then return to Point R
;Positioning, drilled hole 2,
;then return to Point R
;Positioning, drilled hole 3,
;then return to Point R
;Positioning, drilled hole 4,
;then return to Point R
;Positioning, drilled hole 5,
;then return to Point R
;Positioning, drilled hole 6,
;then return to initial plane
;Deselection of the fixed cycle
;Return to reference position
;Spindle stop
Programming Manual, 06/09, 6FC5398-7BP10-1BA0
ISO Milling