Siemens SINUMERIK 840D sl Programming Manual page 348

Measuring Cycles for Turning Machines
6.5 CYCLE974 workpiece: 1-point measurement
Prerequisite
If necessary, the workpiece must be positioned in the correct angular spindle position with
SPOS before the cycle is called.
Parameter
Parameter
_MVAR
_SETVAL
_MA
_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)
6-72
Data type Meaning
0 1-point measurement and tool offset
REAL Setpoint (according to drawing)
2)
(in the case of facing axis (X) and diameter programming, this is a
diameter dimension)
1, 2, 3 Measuring axis
1)
0, >0 0: Without automatic tool offset
>0: With automatic tool offset
(individual values: see section "Description of the most important
defining parameters", 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