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40413 - Filter Window
Determines the physical range (0 - 10,364 mm) of qualified received signals, based on the current raw
reading. Signals beyond the +/- Filter Window range of the current reading will not qualify unless the
average moves. Signals outside the extents of the Filter Window are written to the Out of Range samples
buffer (Holding Register 40414). See Figure 3.2.
Figure 3.2
Example:
Window = 300 mm
Out of Range Samples = 10
Min. Reading
Max. Reading
150 mm
150mm
Current value
of Distance
All samples
are accepted
within this area
Samples are rejected within
this area unless they persist
for 10 consecutive samples
Samples are rejected within
this area unless they persist
for 10 consecutive samples
40414 - Out of Range Samples
Sets the number of consecutive samples outside the Filter Window (Holding Register 40413) necessary to
automatically adjust the current reading and move the Filter Window.
40415 - Sample Rate
Sets the update rate the sensor (10 - 1000 ms). Shorter time delays allow for quicker sensor response times
to changing levels. Typical setting is 200 ms. Settings under 200 ms are not recommended.
40412 - Averaging
S
ets the number of qualified received float signals to average for the raw reading. Qualified received signals
are placed in a first-in, first-out buffer, the contents of which are averaged for the raw reading. The larger
the number of qualified received signals being averaged, the smoother the reading will be, and the slower
the reading will be to react to quickly changing targets.
