Siemens SINUMERIK 840D sl Function Manual page 525

The following output variables are written for measurement type 2:
Output variable
$AC_MEAS_FRAME
$AC_MEAS_RESULTS[0]
Measurement of a z edge ($AC_MEAS_TYPE = 3)
Figure 8-3
The values of the following variables are evaluated for measurement type 3:
Input variable
$AC_MEAS_VALID
$AA_MEAS_POINT1[axis]
$AA_MEAS_SETPOINT[axis]
$AC_MEAS_DIR_APPROACH
$AC_MEAS_ACT_PLANE
$AC_MEAS_FINE_TRANS
$AC_MEAS_FRAME_SELECT
$AC_MEAS_T_NUMBER
$AC_MEAS_D_NUMBER
$AC_MEAS_TYPE
* optional
The following output variables are written for measurement type 3:
Output variable
$AC_MEAS_FRAME
$AC_MEAS_RESULTS[0]
Extended Functions
Function Manual, 10/2015, 6FC5397-1BP40-5BA3
8.5 Setting zeros, workpiece measuring and tool measuring
z edge
Meaning
Result frame with translation
Position of the measured edge
Meaning
Validity bits for input variables
Measuring point 1 for all channel axes
Setpoint position of z edge *
4: +z, 5: -z
Without specification, calculation is undertaken with the ac‐
tive plane,
the radius of the tool is used only in G18 and G19 *
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) *
3
Meaning
Result frame with translation
Position of the measured edge
M5: Measurement
525