Page 15
(a)
Communication
The communication page allows the user to change the IP address and Subnet mask of
the device.
Obviously no octet in the IP Address or Subnet mask can be set to higher than ‘255’.
Once applied the device will need to reset, so the communications page will show a pop-
up (see below) that prompts the user to refresh.
(b)
Relays
The Relays page allows the user to change the controls for the two onboard relays.
·
The hysteresis is a window around the trip point at which the relays will trigger, so to trigger the relay in
the image above the input must get to Trip point + 2% (of fullscale) and the relay will not switch off until
the input drops to Trip point – 2% (of fullscale).
·
The trip point is the Engineering unit at which the Relay will trip
(c)
Filtering
Filtering is used to reduce noise in the device.
·
Band relates to the filtering limits. The setting is percentage of fullscale and can be set between 0.01%
and 1.00%. Other settings are On so that the filtering will be fully active, filtering all data all the time, and
Off where there is no filtering.
·
The size is the time the data is filtered over, a time greater than 5 will turn the filtering band to on
automatically.
For more information on how the adaptive filter works, see the Principles section (7.6).
