Siemens SINUMERIK 840D sl Programming Manual page 221

Position at end of measuring cycle
At the end of the measuring cycle, the probe (ball circumference) is distance _FA (path) from
the last measuring point (setpoint) at measuring height.
Notice
The range of positions of the center or diameter, or groove, web width, must be within the
value specified in _FA for all workpieces to be measured.
Otherwise, there is danger of collision or the measurement cannot be performed!
Measuring cycles
Programming Manual, Release 04/2006, 6FC5398-4BP10-0BA0
Measuring Cycles for Milling and Machining Centers
5.6 CYCLE979 workpiece: Measure hole/shaft/groove/rib at an angle
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