Siemens SINUMERIK 828D - Page 443

Tool offsets
7.10 Online tool length compensation (TOFFON, TOFFOF)
Job planning
Programming Manual, 07/2010, 6FC5398-2BP40-0BA0
443
Examples
Example 1: Selecting the tool length compensation
Program code Comment
MD21190 $MC_TOFF_MODE = 1
MD21194 $MC_TOFF_VELO[0] =1000
MD21196 $MC_TOFF_VELO[1] =1000
MD21194 $MC_TOFF_VELO[2] =1000
MD21196 $MC_TOFF_ACCEL[0] =1
MD21196 $MC_TOFF_ACCEL[1] =1
MD21196 $MC_TOFF_ACCEL[2] =1
; Absolute values are approached.
N5 DEF REAL XOFFSET
N10 TRAORI(1) ; Transformation on.
N20 TOFFON(Z) ; Activation of online tool length
compensation for the Z tool
direction.
N30 WHEN TRUE DO $AA_TOFF[Z]=10 G4 F5 ; A TLC of 10 is interpolated for the
Z tool direction.
...
N100 XOFFSET=$AA_TOFF_VAL[X] ;
A
ssigns actual compensation in the X
direction.
N120 TOFFON(X,-XOFFSET) G4 F5 ;
F
or the X tool direction, the TLC is
reduced back to 0.
Example 2: Deselect the tool length compensation
Program code Comment
N10 TRAORI(1) ; Transformation on.
N20 TOFFON(X) ; Activation of online tool length
compensation for the X tool
direction.
N30 WHEN TRUE DO $AA_TOFF[X]=10 G4 F5 ; A TLC of 10 is interpolated for the
X tool direction.
...
N80 TOFFOF(X) ; Position offset of the X tool
direction is deleted:
...$AA_TOFF[X]=0
No axis is moved.
The position offset is added to the
actual position in the Work
corresponding to the
actual orientation.