Siemens SINUMERIK 840D sl Programming Manual page 147

are placed on the measuring accuracy. Probe types 712, 713 and 714 are not suitable for this
purpose. A positionable spindle is mandatory.
The measurement result (measurement difference) can be used as follows:
● Correction of a WO so that the workpiece zero is in relation to the rib center point.
● Offset of a tool
● Measurement without offset
Measuring principle
One point at each of the opposite edges of the rib are measured based on the selected
measuring axis. The positive direction of the geometry axis is measured first. From the two
actual positions, taking into account the calibration values, the rib width is calculated. The
position of the rib center as workpiece zero is determined corresponding to the work offset
selected to be corrected.
With the selection Setpoint center point "YES", the position of the rib center can be defined as
workpiece zero through setpoint specifications.
The measured difference of the rib width is used as basic variable for a tool offset, the position
of rib zero point, as basis of a work offset.
Measure: Rib (CYCLE977)
Requirements
● The probe must be active as tool.
● Tool type of the probe:
– 3D multi probe (type 710)
– Mono probe (type 712)
Measuring cycles
Programming Manual, 12/2017, 6FC5398-4BP40-6BA1
3.3 Measure workpiece (milling)
Measure: Rib with a protection zone (CY‐
CLE977)
Measuring variants
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