Siemens SINUMERIK 840D sl Programming Manual page 186

Measuring variants
3.3 Measure workpiece (milling)
Requirements
● The probe must be active as tool.
● Tool type of the probe:
– 3D multi probe (type 710)
– Mono probe (type 712)
– Star-type probe (type 714)
Note
The following measuring methods are only possible in the axes of the plane:
● 3D probe with spindle reversal (differential measurement)
● Align 3D probe
The probe types 712, 713 and 714 generally cannot be used for these measuring methods.
Starting position before the measurement
The probe must be positioned above the circular spigot at the position setpoint of the center
point. This position approached above the spigot represents the starting position and at the
same time the setpoint for the offsets to be determined.
With the infeed path that has been entered, it must be guaranteed that from the starting position
height, the desired measuring height at the spigot can be reached.
A protection zone has no effect on the starting position.
Note
If too large a measurement path DFA has been selected so that the protection zone is violated,
then the distance is reduced automatically in the cycle. However, there must be sufficient room
for the probe ball.
Position after the end of the measuring cycle
The measuring cycle end position of the probe ball is centered above the spigot at the height
of the measuring cycles starting position.
Note
The range of the measuring cycle starting positions with regard to the spigot center point must
be within the value of the measuring path DFA, otherwise, there is danger of collision or the
measurement cannot be performed!
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Programming Manual, 12/2017, 6FC5398-4BP40-6BA1
Measuring cycles