Siemens Sinumerik 840D sl Programming Manual page 86

Additional functions
4.1 Program supporting functions
Figure 4-8
Restrictions
Changeover of the axes
Before changing over the drilling axis, one must first deselect the fixed cycle.
Drilling
The drilling cycle is executed only if an axis motion, e.g. is programmed with X, Y, Z or R.
R
Always program R only in one block with an axis motion, otherwise the programmed values
are not stored modally.
Deselection
The G functions of Group 01 (G00 to G03) and G82 should not be used together in one
block, as otherwise G82 is deselected.
Example
M3 S2000
G90 G0 Z100
G90 G99 G82 X200. Y-150. Z-100.
R50. P1000 F150.
Y-500.
86
Drilling cycle, countersink cycle (G82)
;Rotary motion of stem
;Positioning, drilled hole 1,
;stop on the bottom of a hole for 1 s
;then return to point R
;Positioning, drilled hole 2,
Programming Manual, 06/09, 6FC5398-7BP10-1BA0
ISO Milling