Siemens SINUMERIK 840D sl Programming Manual page 43

A new measurement result affected by accidental dimensional deviations only influences the
new tool offset to some extent, depending on the weighting factor.
Computational characteristic of the mean value with different weightings k
Figure 2-11
● The greater the value of k, the slower the formula will respond when major deviations occur
in computation or counter compensation. At the same time, however, accidental scatter will
be reduced as k increases.
● The lower the value of k, the faster the formula will react when major deviations occur in
computation or counter compensation. However, the effect of accidental variations will be
that much greater.
● The mean value Mv is calculated starting at 0 over the number of workpieces i, until the
calculated mean value exceeds the work offset range (S_TZL). From this limit on, the
calculated mean value is applied as an offset.
● Once the mean value has been used for the offset, it is deleted from the memory. The next
measurement then starts again with Mv
Measuring cycles
Programming Manual, 12/2017, 6FC5398-4BP40-6BA1
2.9 Measuring strategy for measuring workpieces with tool offset
Mean value generation with influence of weighting k
= 0.
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Description
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