Siemens SINUMERIK 840D sl Programming Manual page 339

Prerequisite
If necessary, the workpiece must be positioned in the correct angular spindle position with
SPOS before the cycle is called.
Parameter
Parameters
_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 63)
Result parameters (Page 65)
Variable measuring velocity: _VMS (Page 76)
Tolerance parameters: _TZL, _TMV, _TUL, _TLL, _TDIF and _TSA (Page 77)
Measurement path: _FA (Page 78)
Probe type, probe number: _PRNUM (Page 79)
Empirical value, mean value: _EVNUM (Page 80)
Multiple measurement at the same location: _NMSP (Page 81)
Weighting factor for mean value calculation: _K (Page 81)
Measuring cycles
Programming Manual, 03/2009 Edition, 6FC5398-4BP10-2BA0
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
STRING[32] Name of tool environment for automatic tool offset
Measuring Cycles for Turning Machines
6.5 CYCLE974 workpiece: 1-point measurement
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