Siemens Sinumerik 840D sl Programming Manual page 684

Additional functions
14.2 Replaceable geometry axes (GEOAX)
Program code
N10 GEOAX()
N20 G0 X0 Y0 Z0 U0 V0 W0
N30 GEOAX(1,U,2,V,3,W)
N40 GEOAX(1,XX,3,ZZ)
N50 G17 G2 X20 I10 F1000
N60 GEOAX(2,W)
N80 G17 G2 X20 I10 F1000
N90 GEOAX()
N100 GEOAX(1,U,2,V,3,W)
N110 G1 X10 Y10 Z10 XX=25
N120 GEOAX(0,V)
N130 GEOAX(1,U,2,V,3,W)
N140 GEOAX(3,V)
Note
Axis configuration
The machine data below are used to assign the geometry axes, special axes, channel axes
and machine axes as well as the names of the individual axis types:
MD20050 $MC_AXCONF_GEOAX_ASIGN_TAB (assignment of geometry axis to
channel axis)
MD20060 $MC_AXCONF_GEOAX_NAME_TAB (name of the geometry axis in the channel)
MD20070 $MC_AXCONF_MACHAX_USED (machine axis number valid in channel)
MD20080 $MC_AXCONF_CHANAX_NAME_TAB (name of the channel axis in the channel)
MD10000 $MN_AXCONF_MACHAX_NAME_TAB (machine axis name)
MD35000 $MA_SPIND_ASSIGN_TO_MACHAX (assignment of spindle to machine axis)
References:
Function Manual Basic Functions; Axes, Coordinate Systems, Frames (K2)
684
Comments
; The basic configuration of the geometry axes is
effective.
; All axes in rapid traverse to position 0.
; Channel axis U becomes the first (X), V the second
(Y) and W the third geometry axis (Z).
; Channel axis XX becomes the first (X), ZZ the third
geometry axis (Z). Channel axis V remains the second
geometry (Y).
; Full circle in the X/Y plane. Channel axes XX and V
traverse.
; Channel axis W becomes the second geometry (Y).
; Full circle in the X/Y plane. Channel axes XX and W
traverse.
; Reset to the initial state.
; Channel axis U becomes the first (X), V the second
(Y) and W the third geometry axis (Z).
; Channel axes U, V, W each traverse to position 10.
XX as supplementary axis traverses to position 25.
; V is removed from the geometry axis group. U and W
remain the first (X) and third geometry axis (Z).
The second geometry (Y) axis remains unassigned.
; Channel axis U remains the first (X), V becomes the
second (Y), W remains the third geometry axis (Z).
; V becomes the third geometry axis (Z), whereby
overwrite W and this is therefore taken out of the
geometry axis group. The second geometry axis (Y)
is, as before, unassigned.
Programming Manual, 02/2011, 6FC5398-2BP40-1BA0
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