M5: Measurement
7.5 Setting zeros, workpiece measuring and tool measuring
Extended Functions
Function Manual, 03/2013, 6FC5397-1BP40-3BA1
485
7.5.3.9 Measurement of an oblique angle in a plane (measurement type 17)
Measurement of an angle in an inclined plane ($AC_MEAS_TYPE = 17)
The oblique plane is determined using three measuring points P1, P2 and P3.
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Figure 7-13 Oblique plane in G17
$AC_MEAS_TYPE = 17 defines two resulting angles α
0
and α
1
for the skew of the plane;
these are entered in $AC_MEAS_RESULTS[0..1]:
● $AC_MEAS_RESULTS[0] → Rotation at the abscissa
● $AC_MEAS_RESULTS[1] → Rotation at the ordinate
These angles are calculated by means of the three measuring points P1, P2 and P3. In this
type of measurement the angle for the applicate ($AC_MEAS_RESULTS[2]) is always pre-
filled with 0.
A setpoint rotation that is entered in the result frame can be input for the abscissa and/or the
ordinate. If only one angle is specified with a setpoint, the second angle is calculated such
that the three measuring points are on an oblique plane with the setpoint angle. Only
rotations are entered in the result frame, the WCS reference point is retained. The WCS is
rotated such that z' is perpendicular to the oblique plane.
The following plane settings are defined for measurement type 17:
Axis identifier G17 G18 G19
Abscissa x axis z axis y axis
Ordinate y axis x axis z axis
Applicate (infeed axis) z axis y axis x axis
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