Carrier OPN-RTUM2, Integration Manual, Page: 46 / 61

Appendix A: Network Points List for RTU Open
RTU Open v3 Carrier Proprietary and Confidential CARRIER CORPORATION ©2016
Integration Guide All rights reserved
42
BACnet Modbus
Point Name Point
Access
Units Default
Value
BACnet Point Name BACnet Object
ID
Modbus Register Type Modbus
Register #
Output
Air Source
Outdoor Air Temp R
°F link_ahu_oat AV:2609
Stage 3 SAT Stpt R/W °F 56 stg_3_sat AV:83010
Stage 1 SAT Stpt R/W °F 57 stg_1_sat AV:83008
HP Aux Heat
Lockout Temp
R/W °F 40 oat_auxht_lockout AV:3025
input_1 R ai_1 AI:1001
Factory Test
Analog 2 Control
R/W V 0 ao2_fac_test AV:91002
Compressor 2
Service Alarm
Timer
R/W hr 0 comp2_service_hrs AV:83007
Compressor 1
Service Alarm
Timer
R/W hr 0 comp1_service_hrs AV:83006
Compressor 1
Runtime
R hr comp1_rntm AV:2017
Min VFD Output R/W % 40 min_vfd_spd AV:3027
Stage 2 SAT Stpt R/W °F 57 stg_2_sat AV:83009
slidepot voltage
reading
R slidepot_volts AI:1012
Filter Runtime R hr filter_rntm AV:2015
Fan Off Delay R/W seconds 90 fan_delay_off AV:9024
input_7 R °F ai_7 AI:1007
input_11 R ai_11 AI:1011
input_2 R ai_2 AI:1002
Minimum Cooling
SAT
R/W °F 50 sat_cl_min AV:83003
Power Fail Restart
Delay
R/W seconds 5 start_delay AV:9007
Holding Register
(Float)
127
Supply Fan
Service Alarm
Timer
R/W hr 0 sfan_service_hrs AV:83005
Supply Fan
Runtime
R hr sfan_rntm AV:2014
Indoor Air Quality
CO2 (ppm)
R ppm iaq AV:1009 Input Register (Float) 73
Supply Fan VFD R % vfd_output AV:2027
Indoor Air Quality R
0=Normal
1=Alarm
iaq_alarm BV:7005 Discrete Input 33
Supply Air
Temperature
R
0=Normal
1=Alarm
sat_alarm BV:7004 Discrete Input 47
Space Relative
Humidity
R
0=Normal
1=Alarm
sprh_hi_alarm BV:7018 Discrete Input 34
Space Temp
Sensor
R
0=Normal
1=Alarm
spt_fail BV:7001 Discrete Input 46
Outdoor Air
Quality CO2 (ppm) R
ppm oaq AV:1012 Input Register (Float) 85
Gas Valve R
0=Normal
1=Alarm
igc_alarm BV:7050 Discrete Input 40
Setpoint R/W °F occ_cl_stpt AV:3001
Holding Register
(Float)
9