WT-BAC-IP Gateway Installation Instructions
7
WT-BAC-IP Gateway Point Mapping
The following table lists the BACnet objects associated with the WT-BAC-IP Gateway. The WT-BAC-IP also
sources BACnet objects for all its connected devices. Refer to the respective documentation for more information
about the BACnet objects.
Table 1: BACnet Objects of the WT-BAC-IP Gateway (Part 1 of 2)
Register
Number
Point Name
Description
BACnet
Object
Type
5
Occupancy_Mode
Occupancy mode requested by the BAS:
1 – occupied; 2 – constrained float (unoccupied); 3 to 6 – reserved; 7 –
shoulder mode (shallow setback, also used in demand response events)
AV
7
Comfort_Up_D
Comfort zone upper range relative to system master setpoint; default 3°F;
maximum comfort zone 14° F
AV
8
Comfort_Lo_D
Comfort zone lower range relative to system master setpoint; default 3°F;
maximum comfort zone 14° F
AV
10
Setback_Up_L
Upper temperature limit in unoccupied setback mode; default 85°F; maximum
value restricted by Protect_Up_L temperature (register 12)
AV
11
Setback_Lo_L
Lower temperature limit in unoccupied setback mode; default 55°F; minimum
value restricted by Protect_Lo_L temperature (register 13)
AV
12
Protect_Up_L
Maximum temperature allowed in the zone; default 90°F
AV
13
Protect_Lo_L
Minimum temperature allowed in the zone; default 50° F
AV
14
Override_Period
Override duration with one-minute increments; default 120 minutes; maximum
240 minutes
AV
15
Override_Up_D
Comfort zone upper delta during override mode; default 5° F; maximum 14° F
AV
16
Override_Lo_D
Comfort zone lower delta during override mode; default 5° F; maximum 14° F
AV
18
Dead_Band
Temperature control deadband; default 1° F; maximum 14° F
AV
31
Shoulder_Up_D
Upper delta; default 5°F.
In shoulder mode, the device does not call for cool if space temperature is
below setpoint plus upper delta.
AV
Shoulder_Lo_D
Lower delta; default 5°F.
In shoulder mode, device does not call for heat if space temperature is above
setpoint minus lower delta.
AV
33
Display_Mode
Display mode setting:
0 – normal LCD and button functionality; 1 – temperature is not displayed and
buttons are disabled; 2 – normal LCD functionality but buttons are disabled
If set to any other value, everything is displayed as normal and buttons are
enabled; this feature is not supported in stand-alone mode.
AV
54
UTC_High
High indicates 16 bits of 32 bit time stamp in UTC format (UNIX epoch time).
AI
55
UTC_Low
Low indicates 16 bits of 32 bit time stamp in UTC format (UNIX epoch time).
AI
57
Space_Temp
Space temperature value in °F
AI
58
BL_PSI_Rqstd
The branch line pressure requested by the unit based on temperature
measurement, in PSI.
AI
BL_PSI_Msrd
The actual branch line pressure measured by the pressure sensor, in PSI.
AI
