Viconics VT7600 Echelon Integration Manual - Manual (Page 11)

11
Parameter Variable Name Function
Setpoint network output
SNVT_temp_p
nvoEffectSetpt
This output network variable is used to monitor the effective
temperature setpoint which may depend on nciSetpoints,
nvoEffectOccup, nviSetpoint and any local setpoint adjustment.
For example, if the occupancy state is unoccupied and the
heat/cool state is heat, the effective setpoint would be equal to
the unoccupied heating setpoint defined in nciSetpoints.
Valid Range: -40 to 100°F (-40 to 37.5°C)
Local setpoint
output network output
SNVT_temp_p
nvoSetPoint
This output network variable is used to monitor the space
temperature setpoint
Valid Range : 40°F to 100°F (4.5°C to 37.5°C)
The present value is derived by the following
OccHeat Setpoint + ((OccCool Setpoint – OccHeat Setpoint ) / 2)
Configuration properties (nci’s) Description
Parameter Variable Name Function
This configuration property defines the schedule for every day of
the week (from Monday to Sunday or from day 0 to day 6). This
nci is linked with the nvoEffectOccup variable.
2 or 4 events can entered depending on the nb_of_events
variable.
Starting and ending time are entered in minutes, e.i. 11:59 pm is
equal to 1439 minutes (23 hours * 60 min + 59 min)
Valid Range : 0 to 1439 minutes
Default values:
Sub Name Default Value
1 occupied_event_1 0
2 unoccupied_event_2 1439
3 occupied_event_3
0
Schedule network input config
UNVT_day_sched
nciDay_Sched[x]
x = 0 to 6
4 unoccupied_event_4 1439
This configuration property defines the space temperature
setpoints for various heat, cool and occupancy modes.
The stand-by setpoints can be modified but are not used by the
controller, as it does not support Stand-By occupancy mode.
Valid Range and Default values:
Sub Name Valid Range Default value
01 occupied_cool 54 to 100°F
(12 to 37.5°C) 73.5°F (23°C)
02 standby_cool Not Used Not Used
03 unoccupied_cool 54 to 100°F
(12 to 37.5°C) 82.5°F (28°C)
04 occupied_heat 40 to 90°F
(4.5 to 32°C) 70°F (21°C)
05 standby_heat Not Used Not Used
Temperature
Setpoints network input config
SNVT_temp_setpt
nciSetPts
06 unoccupied_heat 40 to 90°F
(4.5 to 32°C) 61°F (16°C)