Appendix A: Network Points List for RTU Open
RTU Open v5
CARRIER CORPORATION ©2019
Integration Guide
All rights reserved
45
BACnet
Modbus
Point Name
Point
Access
Units
Default
Value
BACnet Point Name
BACnet
Object ID
Modbus Register
Type
Modbus
Register #
on
7=Test
8=Shutdown
9=Unocc Free
Cooling
10=Fire
Shutdown
11=IAQ Override
12=Pre-occ Purge
13=IGC Override
Supply Air Temperature
R
°F
sa_temp
AV:1008
Input Register
(Float)
109
DCV Max Ctrl Setpoint
R/W
ppm
650
iaq_stpt_max
AV:3013
Holding Register
(Float)
45
Occ Relative Humidity
Setpoint
R/W
%rh
60
occ_dehum_stpt
AV:3011
Holding Register
(Float)
83
Occupancy Status
R
0=Unoccupied
1=Occupied
occ_status
BV:2008
Discrete Input
18
Optimal Start Type
R/W
1=None
2=Temp
Compensated
3=Learning
Adaptive
2
start_type
MSV:2009
Holding Register
(Signed)
154
Setpoint
R/W
°F
unocc_ht_stpt
AV:3004
Holding Register
(Float)
17
Economizer Test
R/W
%Open
0
econ_test
AV:81001
Space Relative Humidity
Sensor
R
0=Normal
1=Alarm
sprh_sensor_fail
BV:7022
Discrete Input
45
Setpoint Adjustment
R
°F
stpt_adj
AV:1006
Input Register
(Float)
99
Effective Heat Setpoint
R
°F
eff_ht_stpt
AV:3006
Input Register
(Float)
57
Low Fan Econ Min Pos
R/W
%Open
33
econ_min_2
AV:9030
Holding Register
(Float)
89
Fire / Smoke Shutdown R
0=Normal
1=Alarm
fire_alarm
BV:7007
Discrete Input
32
Reset Filter Alarm
R/W
0=Off
1=On
Inactive
(0)
filter_rntm_clr
BV:7517
Coil
22
Setpoint
R/W
°F
unocc_cl_stpt
AV:3003
Holding Register
(Float)
15
ZS Sensor Configuration R
0=Normal
1=Alarm
zs_config_fail
BV:7055
Discrete Input
63
Space Relative Humidity R
%rh
space_rh
AV:1011
Input Register
(Float)
103
Outdoor Air Temperature R
°F
oa_temp
AV:1003
Input Register
(Float)
87
Cooling Lockout
Temperature
R/W
°F
45
oat_cl_lockout
AV:9002
Holding Register
(Float)
43
Power Exhaust Setpoint R/W
%Open
50
pexh_stpt
AV:3010
Holding Register
(Float)
97
BAS On / Off
R/W
1=Inactive
2=Occupied
3=Unoccupied
1
keypad_ovrde
MSV:1001
Holding Register
(Signed)
133
System Space AQ
R/W
ppm
-999
system_iaq
AV:1903
Holding Register
(Float)
149
System Space RH
R/W
%
-999
system_rh
AV:1904
Holding Register
(Float)
151