M5: Measurement
7.5 Setting zeros, workpiece measuring and tool measuring
Extended Functions
Function Manual, 03/2013, 6FC5397-1BP40-3BA1
503
Input variable Meaning
$AC_MEAS_UIFR Number of settable frames from data management. *
Range of 1: G54 to G99: G599.
If this variable is not written, all settable frames are restored.
$AC_MEAS_TYPE 27
* optional
7.5.3.16 Measurement for defining an additive rotation for taper turning (measurement type 28)
Additive rotation of the plane for taper turning ($AC_MEAS_TYPE = 28)
Measuring type 28 can be used to specify an additive rotation through an angle in the range
of α = +/- 90° of the active or a certain plane. The rotation takes place on the coordinate axis
at right angles to the plane.
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Figure 7-17 Rotation of the planes G17, G18 and G19 by angle α = +30°
Application
With taper turning, the active plane is rotated by the taper angle, whereby the rotation is
written in the active cycle frame. With RESET, the cycle frame is deleted. Re-activation may
be necessary. The selection of the cycle frame is made depending on the SZS position
display. If after activation of the rotation, e.g. with active plane G18, traversing is performed
in the direction of z', the actual positions of the corresponding axes change simultaneously
for x and z
Rotations with active planes G17 and G19 behave similarly and are displayed in the above
figure. The values of the following variables are evaluated for measurement type 28:
Input variable Meaning
$AC_MEAS_VALID Validity bits for input variables
$AC_MEAS_WP_SETANGLE Setpoint angle
$AC_MEAS_ACT_PLANE Rotation is through the active plane unless otherwise specified *
$AC_MEAS_FRAME_SELECT Calculated as additive frame unless otherwise specified *
$AC_MEAS_INPUT[0] 1: Taper turning is active. *
$AC_MEAS_TYPE 28
* optional
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