Programming Example - Siemens SINUMERIK 840D sl Programming Manual

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 2-14)
Offset angle position: _CORA (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)
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, Release 04/2006, 6FC5398-4BP10-0BA0
5.4 CYCLE977 workpiece: Measure hole/shaft/groove/web/rectangle parallel to axes
Measuring Cycles for Milling and Machining Centers
5-55