Siemens SINUMERIK 840D sl Programming Manual page 188

Measuring variants
2.4 Measure tool (turning)
Measuring "axis by axis" - only length (L1 or L2) and radius
Length L1 or L2 and radius are measured in the parameterized measuring axis by probing
twice to two different sides of the measuring probe.
Table 2- 35
Length L1 and radius measurement without
milling tool reversal
Measuring "complete" - lengths (L1 and L2) and radius
For complete measurements, all offsets are determined:
● both lengths and radius (4 measurements),
● if the radius is specified to be 0, then only both lengths are determined (2
The measuring cycle generates the approach blocks to the probe and the transverse
motions to measure length 1, length 2 and the radius. A correctly selected start position is
needed.
Milling tool reversal
When measuring with reversal, to start, the measuring point in the selected axis and a milling
spindle position according to starting angle SPOS is measured. Then the tool (spindle) is
turned through 180 degrees and measured again.
The average value is the measured value. Measurement with reversal results in a second
measurement at each measuring point with a spindle rotation through 180 degrees with
respect to the starting angle. The offset angle entered in SCOR is summed to these 180
degrees. That enables selection of a specific 2nd milling cutting edge that is offset from the
1st cutting edge by precisely 180 degrees. Measurement with reversal permits measurement
of two cutting edges of one tool. The mean value is the offset value.
188
Measuring "axis by axis" - only length (L1 or L2) and radius
measurements).
Length L2 and radius measurement with milling
tool reversal
Programming Manual, 02/2011, 6FC5398-4BP40-0BA0
Measuring cycles