Siemens SINUMERIK 840D sl Programming Manual page 277

Reference groove
A groove located in the working area (permanent feature of the machine) whose precise
position is known and that can be used to calibrate workpiece probes.
Safe area
The safe area
reached, there is a defect in the probe or the set position is incorrect.
Setpoint
In the "on-the-fly measurement" procedure, a position is specified as the setpoint value for
the cycle at which the signal of the touch-trigger probe is expected.
Tool name
Name of the tool in the tool list.
Trigger point
When calibrating, the trigger points of the probe are determined and saved in the channel-
specific setting data from SD 54600 and higher for the corresponding axis direction.
Upper tolerance limit
When measuring a dimensional deviation as the upper tolerance limit (
between "2/3 tolerance of workpiece" and "Dimensional difference control", this is regarded
100% as tool offset. The previous average value is deleted.
Weighting factor for averaging
The weighting factor k can be applied to allow different weighting to be given to an individual
measurement.
A new measurement result thus has only a limited effect on the new tool offset as a function
of k.
Work offset (WO)
In the result of a measurement, the actual-setpoint value difference is stored in the data set
of any settable work offset.
Work offset range
This tolerance range (lower limit
random dimensional deviations. If the absolute value of the actual/set difference is less than
the work offset range, the offset is not applied.
Measuring cycles
Programming Manual, 02/2011, 6FC5398-4BP40-0BA0
does not affect the offset value; it is used for diagnostics. If this limit is
S_TSA
S_TZL
) corresponds to the absolute value of maximum
Glossary
) ranging
S_TU
277