Johnson Controls WT-4002-MCR - Page 25

WT-4000 Series Pneumatic-to-Direct Digital Control (DDC) Room Thermostats Installation Instructions
25
Table 4: 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
59 MS_Shoulder Bit 10 – motion detector shoulder mode triggered by lack of motion BI
Shoulder_On Bit 7 – shoulder mode button pressed BI
Override_On Bit 6 – override mode button pressed BI
Fan_On Bit 2 – fan on (if applicable) BI
Cool_On Bit 1 – cool on (branch line pressure in cooling zone) BI
Heat_On Bit 0 – heat on (branch line pressure in heating zone) BI
60 Current_Mode The unit’s current mode:
1 – occupied; 2 – constrained float (unoccupied); 3 to 6 – reserved; 7 –
shoulder mode
AI
61 Master_SP The master (system) setpoint specified by the energy management application;
default 70°F.
AV