Measurement Of A Shaft (Measurement Type 9) - Siemens SINUMERIK Series Function Manual

M5: Measurement
7.5 Setting zeros, workpiece measuring and tool measuring
Program code
$P_SETFRAME = $AC_MEAS_FRAME
$P_SETFR = $P_SETFRAME
g1 x-3 y0
g2 I = $AC_MEAS_DIAMETER / 2
m30
7.5.3.4

Measurement of a shaft (measurement type 9)

Measuring points for determining a shaft ($AC_MEAS_TYPE = 9)
Three measuring points are needed to determine the center point and diameter. The three
points must all be different. When four points are specified, the circle is adjusted in
accordance with the least square method. The circle is determined so that the sum of the
distance squares of the points to the circle is minimal. The quality of the adjustment can be
read.
Figure 7-7 Shaft
The values of the following variables are evaluated for measurement type 9:
Input variable
$AC_MEAS_VALID
$AA_MEAS_POINT1[axis]
$AA_MEAS_POINT2[axis]
$AA_MEAS_POINT3[axis]
476
Comment
; Describe system frame in data management
; Approach P1
; Approach hole in reference to the center of
the circle
Meaning
Validity bits for input variables
Measuring point 1
Measuring point 2
Measuring point 3
Function Manual, 03/2013, 6FC5397-1BP40-3BA1
Extended Functions