198 Rockwell Automation Publication 2198-UM004A-EN-P - October 2019
Chapter 10 Modes of Operation
For example:
If Then
U is set to 1 and Y is set to 1 (filter width is 0.2 µs [2500 kHz])
and
The high and low duty width of the command pulse are both
larger than 0.8 µs (625 kHz) (filter width is four times of 0.2 µs
[2500 kHz])
The pulse command is not filtered out.
When the high or low duty width of the pulse is smaller than the filter width, then the pulse command is filtered out.
If this first pulse width is shorter than 0.8 µs (625 kHz), it can
be filtered, and thus two input pulses are regarded as one
pulse. If this pulse width is shorter than 0.2 µs (2500 kHz), it is
filtered.
If this low level pulse width is shorter than 0.8 µs
(625 kHz), it can be filtered, and thus two input
pulses are regarded as one pulse. If this low level
pulse width is shorter than 0.2 µs (2500 kHz), it is
filtered.
If 125 ns (4 Mpps) input pulse is used, set the filter setting value Y to 0 as no filter function.
IMPORTANT When the signal is the high-speed pulse specification of 125 ns (4 Mpps) and
the setting value of the filter is 0, then the pulse is not filtered.
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