Siemens SINUMERIK 808D Programming And Operating Manual page 131

Drilling cycle counterboring (G81):
Restrictions
None.
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 G76 should not be used together in one block, as otherwise G76 is
deselected.
Example
M3 S1500
G90 G0 Z100.
G90 G99 G81 X200. Y-150. Z-100. R50.
F150.
Y-500.
Y-700.
X950.
Y-500.
G98 Y-700.
G80
G28 G91 X0 Y0 Z0
M5
Programming and Operating Manual (ISO Turning/Milling)
01/2017
;Rotary motion of stem
;Positioning, drilled hole 1,
;then return to point R and
;for 1 s stop at the bottom of a hole
;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
131