Carrier OPN-RTUM2, Integration Manual, Page: 39 / 61

Appendix A: Network Points List for RTU Open
RTU Open v3 Carrier Proprietary and Confidential CARRIER CORPORATION ©2016
Integration Guide All rights reserved
35
Network points list for BACnet and Modbus
BACnet Modbus
Point Name Point
Access
Units Default
Value
BACnet Point Name BACnet Object
ID
Modbus Register Type Modbus
Register #
Active Heat
Stages
R heat_run AV:2003 Input Register (Float) 33
Effective Cool
Setpoint
R °F eff_cl_stpt AV:3005 Input Register (Float) 55
High Space
Temperature
R
0=Normal
1=Alarm
spt_hi_alarm BV:7011 Discrete Input 35
Low Space
Temperature
R
0=Normal
1=Alarm
spt_lo_alarm BV:7012 Discrete Input 39
Input_6 R °F ai_6 AI:1006
Supply Fan Relay
State
R
0=Off
1=On
sfan BV:2001 Discrete Input 23
Supply Fan Status R
0=Off
1=On
sfan_status BV:1003 Discrete Input 24
Economizer
Output
R %Open econ_output AV:2022 Input Register (Float) 51
Outdoor Air
Quality Sensor
R
0=Normal
1=Alarm
oaq_fail BV:7006 Discrete Input 41
DCV Max Vent
Damper Pos
R/W %Open 50 iaq_dpr_max AV:9011
Holding Register
(Float)
47
Space
Temperature -
Prime Variable
R °F space_temp AV:2007 Input Register (Float) 107
HP Rev Cycle
Lockout Temp
R/W °F -3 hp_rev_cycle_lockout AV:9004
Holding Register
(Float)
71
System Outdoor
Air Temperature
R/W °F -999 system_oat AV:1901
Holding Register
(Float)
119
Economizer Purge
Min Pos
R/W %Open 40 econ_purge_min AV:9029
Holding Register
(Float)
75
Active
Compressor
Stages
R comp_run AV:2020 Input Register (Float) 31
System Mode R
1=Off
2=Fan Only
3=Economizer
Cooling
4=Cooling
5=Heating
6=Dehumidificati
on
7=Test
8=Shutdown
9=Unocc Free
Cooling
10=Fire
Shutdown
11=IAQ Override
12=Pre-occ Purge
run_status MSV:2002
Input Register
(Signed)
1
Appendix A: Network Points List for RTU Open