Siemens SINUMERIK 840D sl Programming Manual page 158

Measuring variants
3.3 Measure workpiece (milling)
Starting position before the measurement
The probe is at the measuring height or above the corner (see protection zone) opposite to
the corner to be measured or in front of the 1st measuring point.
The measuring points must be able to be approached from here collision-free.
The measuring cycle generates the required traversing blocks and performs the
measurements at the measuring points P1 to P4, starting with P1.
Positioning measuring points P1 to P4 taking into account a protection zone
● Protection zone = no
The probe is pre-positioned at the measuring height and remains at this measuring height
when measuring the corner. An outer corner is traversed around.
● Protection zone = yes
The probe is pre-positioned above the corner. When measuring, the 3rd axis of the plane
(Z for G17) is moved by the value in parameter DZ to the measuring height, and the
corresponding measuring point is measured. After the measurement, the probe is raised
by the value of parameter DZ and moves to the next measuring point, where it is lowered
again.
Figure 3-14
Position after the end of the measuring cycle
After the last measurement, the probe is at measuring point P4.
Depending on the protection zone parameter (yes/no), the probe is at the measuring height
or above the corner.
Procedure
The part program or ShopMill program to be processed has been created and you are in the
editor.
158
Protection zone = yes: Traversing around the outer corner with DZ>0 (measuring height
+ DZ) for G17
1. Press the "Meas. workpiece" softkey.
2. Press the "Corner" softkey.
3. Press the "Any corner" softkey.
The input window "Measure: Any corner" opens
Programming Manual, 12/2017, 6FC5398-4BP40-6BA1
Measuring cycles