Siemens SINUMERIK 840D sl Function Manual page 659

Input variable
$AC_MEAS_INPUT[1]
$AC_MEAS_TYPE
* optional
The following output variables are written for measurement type 16:
Output variable
$AC_MEAS_FRAME
$AC_MEAS_WP_ANGLE
8.4.3.9 Measurement of an oblique angle in a plane (measurement type 17)
Measurement of an angle in a plane ($AC_MEAS_TYPE = 17)
The oblique plane is determined using three measuring points P1, P2 and P3.
Figure 8-16
Extended Functions
Function Manual, 03/2009, 6FC5397-1BP10-4BA0
Description
Unless otherwise specified, the workpiece position angle is
entered in the frame as a rotation. Otherwise, a channel axis
index can be specified for a rotary axis whose translation is set
to the current rotary axis position plus the calculated rotation.
The workpiece is then aligned at rotary axis position = 0. The
current rotary axis value must be set in
$AA_MEAS_POINT[axis]. *
16
Oblique plane in G17
Setting zeros, workpiece measuring and tool measuring
Description
Result frame with rotation
Calculated workpiece position angle
Measurement (M5)
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