M5: Measurement
7.5 Setting zeros, workpiece measuring and tool measuring
Extended Functions
466 Function Manual, 03/2013, 6FC5397-1BP40-3BA1
7.5.3 Types of workpiece measurement
7.5.3.1 Measurement of an edge (measurement type 1, 2, 3)
Measurement of an x edge ($AC_MEAS_TYPE = 1)
The edge of a clamped workpiece is measured by approaching this edge with a known tool.
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Figure 7-1 x edge
The values of the following variables are evaluated for measurement type 1:
Input variable Meaning
$AC_MEAS_VALID Validity bits for input variables
$AA_MEAS_POINT1[axis] Measuring point 1 for all channel axes
$AA_MEAS_SETPOINT[axis] Setpoint position of x edge *
$AC_MEAS_DIR_APPROACH 0: +x, 1: -x
$AC_MEAS_ACT_PLANE Without specification, calculation is undertaken with the
active plane,
the radius of the tool is used only in G17 and G18 *
$AC_MEAS_FINE_TRANS 0: Coarse offset, 1: Fine offset
$AC_MEAS_FRAME_SELECT Calculated as additive frame unless otherwise specified *
$AC_MEAS_T_NUMBER Calculated as active T unless otherwise specified (T0) *
$AC_MEAS_D_NUMBER Calculated as active D unless otherwise specified (D0) *
$AC_MEAS_TYPE 1
* optional
The following output variables are written for measurement type 1:
Output variable Meaning
$AC_MEAS_FRAME Result frame with translation
$AC_MEAS_RESULTS[0] Position of the measured edge