Transition Networks
S4224 Web User Guide
33558 Rev. C
Page 361 of 669
Filter Parameters
The
Filter Parameters
table displays the current DelayFilter, Period, and Distance information.
DelayFilter
The default delay filter is a low pass filter, with a time constant of 2**DelayFilter*DelayRequestRate.
If the DelayFilter parameter is set to 0, the delay filter uses the same algorithm as the offset filter.
period
The default offset filter uses a minimum delay filter method (i.e., the minimum measured offset during
Period samples is used in the calculation).
dist
The distance between two calculations is
Dist
periods.
Note
: In configurations with Timestamp
enabled PHYs, the period is automatically increased, if (period*dist < SyncPackets pr sec/4), i.e. max
4 adjustments are made pr sec.
If
dist
is
1
the offset is averaged over the
Period
.
If
dist
is
>1
the offset is calculated using 'min' offset.