Carrier RTU Open v5 Integration Manual page 47

Reading System Points
To verify that the system point is being written to within the refresh time specified (value varies by point), the i-
Vu® Open controller clears any value that is written, once it has been processed by the controller and returned
the system point to its default value. Therefore, a BAS should never read back the system point's value to confirm
the commanded value was successfully received. To confirm a write, refer to the table below for the corresponding
control point that should be read.
NOTE A confirming "read" should take place at least 30 seconds following the "write" to verify that the write has
been processed by the controller.
Commanded Points
Type /
Display Name
Instance
System Space av:1902
Temperature
System Space av:1904
RH
System Space av:1903
AQ
System OA av:1901
Temperature
[OA] Enthalpy bv:1901
(BACnet)
System Outdoor av:1908
AQ
System Water av:1905
Temperature
†System bv:1907
Fire/Smoke
†System bv:1906
Pressurization
BAS On/Off msv:1001
[Occupancy]
† Points do not apply to multi-protocol controllers.
RTU Open v5
Integration Guide
Control Points
Object Name Display Name
system_spt Space Temperature
- Prime Variable
system_rh Space Relative
Humidity
system_iaq Indoor Air Quality
CO2 (ppm)
system_oat Outdoor Air
Temperature
oae [OA] Enthalpy
Status
system_oaq Outdoor Air Quality
CO2 (ppm)
system_water_t Changeover Mode
emp
fire_shutdown Fire/Smoke
Shutdown
press_override Pressurization
keypad_ovrde Occupancy Status
43
Appendix A: Network Points List for RTU Open
Type /
Object Name
Instance
av:2007 space_temp
av:1011 space_rh
av:1009 iaq
av:1003 oa_temp
bv:1002 enthalpy_status
av:1012 oaq
av:1014 chgovr_mode
bv:7007 fire_alarm
bv:7038 press_alarm
bv:2008 occ_status
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