Siemens SINUMERIK 840D sl Programming Manual page 169

The radius of the probe ball and length 1
must be entered in the tool offset memory
under T9 D1, before the cycle is called.
Tool type (DP1):
Length 1 - geometry (DP3):
Radius - geometry (DP6):
Length 1 (L1) must refer to the center of
the probe ball: _CBIT[14]=0.
Careful when positioning! Radius R in
length (L1) is ignored. But the desired
calibration height can be entered directly.
Zero offset, with settable
ZO G54:
Arrays for workpiece
probe 3:
(already contains
approximate values)
%_N_CALIBRATE_IN_X_Y_MPF
N10 G54 G90 G17 T9 D1
N20 M6
N30 G0 X100.000 Y80.000
N40 Z10
N50 _CBIT[14]=0
N60 _TSA=1 _PRNUM=3 _VMS=0 _NMSP=1
_FA=1 _TZL=0
N61 _MVAR=010101 _SETVAL=110.246
N70 CYCLE976
N80 Z40
N100 M2
Explanation of example
The new trigger values in –X, +X, -Y and +Y are stored in the global data of measuring probe
3 _WP[2,1...4]. The positional deviation calculated in the X and Y direction is stored in
_WP[2,7], _WP[2,8], the active probe ball diameter in _WP[2,0].
Measuring cycles
Programming Manual, Release 04/2006, 6FC5398-4BP10-0BA0
Measuring Cycles for Milling and Machining Centers
710
L1 = 50.000
R = 3.000
NVx, NVy, ...
_WP[2, ...]
;ZO selection, select probe as tool and
;operating plane
;Insert probe and activate tool offset
;
;Position probe at center of hole
;
;Position probe in hole at
;calibration height
;Length 1 relative to probe ball center
;Set parameter for calibration cycle:
;Calibrate probe 3 in
;4 axis directions with calculation of
;positional deviation and calculation of
effective diameter of probe ball
;Measuring cycle call, calibrate paraxially
;Position probe above workpiece
;End of program
5.3 CYCLE976 calibrate workpiece probe
5-35