Measurement Of A Rectangle (Measurement Type 25) - Siemens SINUMERIK 840D sl Function Manual

8.5.3.13

Measurement of a rectangle (measurement type 25)

Measuring points for determining a rectangle ($AC_MEAS_TYPE = 25)
To determine a rectangle, tool dimensions are required in the following working planes.
● G17 working plane x/y infeed direction z
● G18 working plane z/x infeed direction y
● G19 working plane y/z infeed direction x
Four measuring points are required per rectangle.
Measuring points can be specified in any desired order. The measuring points with the largest
ordinate distance correspond to points P3 and P4.
Figure 8-16 Determining a rectangle with infeed into the working plane G17, G18 and G19
The values of the following variables are evaluated for measurement type 25:
Input variable
$AC_MEAS_VALID
$AA_MEAS_POINT1[axis]
$AA_MEAS_POINT2[axis]
$AA_MEAS_POINT3[axis]
$AA_MEAS_POINT4[axis]
$AA_MEAS_SETPOINT[axis]
$AC_MEAS_ACT_PLANE
$AC_MEAS_FINE_TRANS
$AC_MEAS_FRAME_SELECT
$AC_MEAS_T_NUMBER
$AC_MEAS_D_NUMBER
Extended Functions
Function Manual, 10/2015, 6FC5397-1BP40-5BA3
8.5 Setting zeros, workpiece measuring and tool measuring
Meaning
Validity bits for input variables
Measuring point 1
Measuring point 2
Measuring point 3
Measuring point 4
Setpoint position of web center *
Calculated as active plane unless otherwise specified *
0: Coarse offset, 1: Fine offset *
Calculated as additive frame unless otherwise specified *
Calculated as active T unless otherwise specified (T0) *
Calculated as active D unless otherwise specified (D0) *
M5: Measurement
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