Programming Example - Siemens SINUMERIK 840D sl Programming Manual

The following additional parameters are also valid:
_VMS, _CORA, _TSA, _FA_, PRNUM, _EVNUM, and _NMSP.
The following also applies for measuring variants with tool compensation (even when
KNUM=0):
_TZL, _TMV, _TUL, _TLL, _TDIF
With _TSA, the diameter or width is monitored for "tool compensation", the center for "ZO
determination".
_CORA only relevant for monodirectional probe.
See also
Variable measuring velocity: _VMS (Page 76)
Offset angle position: _CORA (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)
5.4.2.2

Programming example

Measuring a web - paraxial
In the G17 plane, a web is to be measured with a setpoint width of 132 mm. The assumed
center is X=220.
The maximum possible deviation of the center is taken as 2 mm, the width 1 mm. To obtain
a minimum measuring path of 1 mm, the measuring path is programmed as _FA=2+1+1=4
mm (max. measuring path _FA=8 mm). A measured variance of web center of >1.2 mm is
not however permissible.
Clamping for workpiece:
Zero offset, with settable ZO G54: NVx, NVy, ...
Workpiece probe 1, used as tool T9, D1, is to be used.
Measuring cycles
Programming Manual, 03/2009 Edition, 6FC5398-4BP10-2BA0
5.4 CYCLE977 workpiece: Measure hole/shaft/groove/web/rectangle parallel to axes
Measuring Cycles for Milling and Machining Centers
145