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Honeywell
• 47
From term.
5.1.2.1
Selection of terminal functions with dip switches
The shadowed terminals in Table 23 allow for three functional selections each with the so-
called
dip switches
. The switches have three positions, left, middle and right. The middle posi-
tion is for
Test mode
your requirements.
From
Standard I/O board
From term.
#12
#13
RUN
. See figure to locate the switches and make appropriate selections for
* Bus termination resistor
Figure 42. Dip switches
Relay board
Terminal
21
RO1/1
22
RO1/2
23
RO1/3
24
RO2/1
25
RO2/2
26
RO2/3
28
TI1+
29
TI1-
Table 24. Control I/O terminal signals
on relay board and connection example
ON
RS485*
Current
AO1
Current
AI2
Current
AI1
C
ONTROL UNIT
Signal
Relay output 1
Relay output 2
Thermistor input
OFF
Voltage
Voltage
Voltage
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