Siemens SINUMERIK 840D sl Function Manual page 511

Setpoints
The resultant frame is calculated so that the measurement complies with the setpoints
specified by the user.
Table 8-3
Type
REAL
REAL
INT
REAL
REAL
INT
*) The approach direction is required only for the edge, groove, web and tool measurement.
The following measuring points are irrelevant and not evaluated:
● On inputting the setpoint workpiece position angle α: of the 2nd measuring point.
● When inputting the setpoint angle of intersection φ: at the 4th measuring point.
Plane separation
Plane separation for defining the tool orientation. The active level is used for all calculations if
no level is specified.
Type
INT
Translational offsets
When measuring workpieces, translational offsets can be entered in the fine offset component
of the selected frame. Variable $AC_MEAS_FINE_TRANS is used for this purpose.
Type
INT
The following is applicable if the variable $AC_MEAS_FINE_TRANS is not described:
● The compensation value is entered in the coarse offset and transformed in the time frame.
There can also be a fine portion in the translation by virtue of the transformations.
● If the following machine data is not preset to 1:
MD18600 $MN_MM_FRAME_FINE_TRANS
The compensation is always entered in the course offset.
Extended Functions
Function Manual, 10/2015, 6FC5397-1BP40-5BA3
8.5 Setting zeros, workpiece measuring and tool measuring
Input values for the user setpoint values
System variable
$AA_MEAS_SETPOINT[ax]
$AA_MEAS_SETANGLE[ax]
$AA_MEAS_SP_VALID[ax]
$AC_MEAS_WP_SETANGLE
$AC_MEAS_CORNER_SETANGLE
$AC_MEAS_DIR_APPROACH *)
System variable
$AC_MEAS_ACT_PLANE
System variable
$AC_MEAS_FINE_TRANS
Meaning
Setpoint position of an axis
Setpoint angle of an axis
1: Setpoint position of axis is valid / 0: Invalid
Rated workpiece position angle α: -90 < α < 180
Setpoint cutting angle φ of corner: 0 < φ < 180
Approach direction:
0: +x, 1: -x, 2: +y, 3: -y, 4: +z, 5: -z
Values
0: G17 working plane x/y infeed direction z
1: G18 working plane z/x infeed direction y
2: G19 working plane y/z infeed direction x
Values
0: Translational compensation is entered in the
coarse offset.
1: Translational compensation is entered in the
fine offset.
M5: Measurement
511