Siemens SINUMERIK 840D sl Programming Manual page 173

Workpiece probe types that can be used
● Multidirectional probe (_PRNUM=0xy)
● Monodirectional, bidirectional probe (_PRNUM=1xy)
When measuring contour elements hole, shaft, a 3- or 4-point measurementcan be used.
Parameters for this selection are only set in this cycle, in the 4th digit of _PRNUM:
_PRNUM=0zxy ⇒ 3-point measurement
_PRNUM=1zxy ⇒ 4-point measurement
The 1st to 3rd digit of _PRNUM retains its significance depending on the illustration given in
Section "Description of the most important defining parameters"!
Note
(_PRNUM) probes, which are calibrated with the calibration variant "Calibrate with
calculation of positional deviation", must be used in conjunction with CYCLE979.
Exceptions: The probe is precision-adjusted mechanically and the positional deviation is less
than +/-1 µm.
Programming
CYCLE979
Measuring variants
Measuring cycle CYCLE979 permits the following measuring variants which are specified via
parameter _MVAR.
Value
1
2
3
4
101
102
103
104
Measuring cycles
Programming Manual, 03/2009 Edition, 6FC5398-4BP10-2BA0
5.6 CYCLE979 workpiece: Measure hole/shaft/groove/rib at an angle
Measuring variant
Measure hole with tool offset
Measure shaft with tool offset
Measure groove with tool offset
Measure web with tool offset
ZO calculation in hole with ZO compensation
ZO calculation on shaft with ZO compensation
ZO calculation in groove with ZO compensation
ZO calculation on web with ZO compensation
Measuring Cycles for Milling and Machining Centers
173