Siemens SINUMERIK 840D sl Programming Manual page 267

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 3-42
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 (four measurements).
● If the radius is specified to be 0, then both lengths are determined (two measurements).
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 required.
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. This
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.
Measuring cycles
Programming Manual, 12/2017, 6FC5398-4BP40-6BA1
Measuring "axis-by-axis" - only length (L1 or L2) and radius
3.5 Measure tool (turning)
Length L2 and radius measurement with milling
tool reversal
Measuring variants
267