Description - Honeywell IAQPoint2 User Manual

Description

Available Configurations
Description
The unit can be factory set to one of three configurations. In the most
standard configuration, the 420I converts the transmitter digital signal
to 4-20 mA analog outputs.
Although the unit is preconfigured, it is also possible to modify
configurations using the unit's DIP switch (see Changing the 420I
Configuration section).
Available Configurations
This section provides details on the various 420I configurations
available as well as various wiring diagrams. The 420I converter may
be configured in three modes: Listening, Polling and Split Address.
Listening Mode
In this mode, the 420I only listens to the information transmitted
between the controller and the transmitters. It does not intervene in
network operation. The converter transforms the digital signal from the
transmitters into a 4-20 mA analog signal.
Once set, the converter provides a 4-20 mA analog signal for the
transmitters at addresses 1 to 8 or 9 to 16 if the converter is connected
to channel 1 of the 201C, and 17 to 24 or 25 to 32 if the converter is
connected to channel 2.
Each converted signal is associated to a distinct output (J16 through
J23).
Three statistic values are also available: Minimum, Maximum and
Average, with the appropriate settings. These values are available with
addresses 1 to 8, 9 to 16, or 1 to 16 if the converter is connected to
channel 1 of the 201C, or 17 to 24, 25 to 32, or 17 to 32 if the converter
is connected to channel 2. The outputs associated with the statistic
mode are the following:
Output J20: Average
Output J18: Minimum
Output J16: Maximum
12 420I User Manual
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Honeywell 2/08