Programming Example - Siemens SINUMERIK 840D sl Programming Manual

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)
Weighting factor for mean value calculation: _K (Page 81)
5.5.4.2

Programming example

1-point measurement in X axis with tool compensation
A surface parallel with the Y axis has been machined with milling tool T20, D1 on a set-up
workpiece.
This surface should be positioned exactly 100.000 mm in the X axis from the defined
workpiece zero and be measured.
If the absolute value of the difference determined is >0.01, the radius of this tool is to be
automatically offset in the wear.
1 mm is assumed to be the maximum
permissible deviation of the position of the
surface.
To obtain a minimum measuring path of 1
mm, the measuring path is programmed as
_FA= 1+1=2 mm
(max. total measuring path = 4 mm).
The offset must take the empirical value in
memory _EV[19] into consideration. Mean
value calculation _MV[19] and inclusion in
calculation are also to be used.
This tool offset will therefore affect the production of the next workpieces or possible
remachining.
Clamping for workpiece:
Zero offset, with settable ZO G54: NVx, NVy, ...
The probe is already calibrated. Arrays for workpiece probe 1: _WP[0, ...]
Measuring cycles
Programming Manual, 03/2009 Edition, 6FC5398-4BP10-2BA0
Measuring Cycles for Milling and Machining Centers
5.5 CYCLE978 workpiece: Measuring a surface parallel to the axis
169