Siemens SINUMERIK 840D sl Programming Manual page 352

Measuring Cycles for Turning Machines
6.5 CYCLE974 workpiece: 1-point measurement
Before taking the first measurement, the workpiece is positioned at the angular position
programmed in parameter _STA1 with SPOS and the 180° reversal is automatically
generated by the cycle before the second measurement.
The mean value is calculated from both measured values.
Otherwise, the same conditions and tool offset options apply as for measuring variant
_MVAR=10 "1-point measurement and tool offset".
Parameter
Parameter
_MVAR
_SETVAL
_MA
_STA1
_KNUM
_TNUM
_TNAME
_DLNUM
_TENV
1) Measurement in the 3rd axis of the plane (with G18 in Y) is also possible, provided this axis exists.
2) By setting _CHBIT[19]=1 in the GUD6 block, the same parameterization regarding the setpoint can
be used when measuring in the Y axis (3rd axis of the plane) for active G18 as when measuring in
the X axis (transverse axis). In this case, the tool offset is also applied to L1 (effective length in X) if
nothing different is specified by _KNUM.
Additional parameters _VMS, _TZL, _TMV, _TUL, TLL, _TDIF, _TSA, _FA,
_PRNUM, _EVNUM, _NMSP and _K also apply.
See also
Defining parameters (Page 2-2)
Result parameters (Page 2-4)
Variable measuring velocity: _VMS (Page 2-14)
Tolerance parameters: _TZL, _TMV, _TUL, _TLL, _TDIF and _TSA (Page 2-15)
Measurement path: _FA (Page 2-16)
Probe type, probe number: _PRNUM (Page 2-17)
Empirical value, mean value: _EVNUM (Page 2-18)
Multiple measurement at the same location: _NMSP (Page 2-19)
Weighting factor for mean value calculation: _K (Page 2-19)
6-76
Data type Meaning
1000 1-point measurement with reversal and tool offset
REAL Setpoint (according to drawing)
2)
(in the case of facing axis (X) and DIAMON , this is a diameter
dimension)
1, 2, 3 Measuring axis
1)
REAL, >=0 Starting angle (spindle position)
0, >0 0: Without automatic tool offset
>0: With automatic tool offset
(individual values: See Section 2.3, parameter _KNUM)
INTEGER, ≥0 Tool number for automatic tool offset
STRING[32] Tool name for automatic tool offset
(alternative to _TNUM with tool management active)
INTEGER, ≥0 DL number for additive and setup offset
(from meas. cycles SW 6.3)
STRING[32] Name of tool environment for automatic tool compensation (from
measuring cycles SW 6.3)
Programming Manual, Release 04/2006, 6FC5398-4BP10-0BA0
Measuring cycles