Network/Modbus Communications
81
NPT NPA UNITS
i
DESCRIPTION
BI
3
Min. Supply Flow Alarm
0=Normal
1=Low Flow Alarm
BI
4
Max. Exhaust Flow Alarm
0=Normal
1=High Flow Alarm
BI
2
5
Emergency
Mode 0=Normal
1=Emergency
BI
2
6
Unoccupied Mode
0=Normal Mode
1=Unoccupied
Mode
BI 7
Data
Error
0=Normal
1=Data
Error
AO
1
ft/min, m/s, in.
H
2
O, Pa
Control Set point
AO
2
ft/min, m/s, in.
H
2
O, Pa
Low Alarm Set point
AO
3
ft/min, m/s, in.
H
2
O, Pa
High Alarm Set point
AO
4
CFM, l/s
Minimum Supply Volume Ventilation Set point
AO
5
CFM, l/s
Minimum Supply Volume Temperature Set point
AO
6
CFM, l/s
Minimum Supply Volume in Unoccupied Mode
AO
7
CFM, l/s
Minimum Supply Flow Alarm Set point
AO
8
CFM, l/s
Max. Exhaust Flow Alarm Set point
AO
9
CFM, l/s
Minimum Offset Set point
AO
10
CFM, l/s
Maximum Offset Set point
AO
11
CFM, l/s
Maximum Supply Flow Set point
AO
12
CFM, l/s
Minimum Exhaust Flow Set point
AO 13
°
F,
°
C
Temperature Set point
AO 14
°
F,
°
C
Unoccupied Temperature Set point
AO
15
#
Units
0=Feet per minute
1=Meters per second
2=Inches of H
2
O
3=Pascals
1
Units will correspond with choice in UNITS variable (AO #14). Flow rates will either be CFM or l/s, based on
whether UNITS variable is set for an English or metric unit type. Temperatures will be either
°
F or
°
C, depending
on the UNITS variable.
2
These are the only binary units that can be remotely activated.
