31-00083—02
76
NETWORK VARIABLE - OUTPUTS
nviValveOvrd
Allows override of valves for hydronic balancing.
Writing of 0-100% overrides valve position or percent number of stages to
commanded value. Writing invalid (NaN) or (+inf) reverts to automatic
operation.
Notes:
This override duplicates the functionality of nviHtgOvr.
Use nviValveOrd to command peripheral and reheat valves individually.
reheatPos
lev_percent
Reheat
0
≤
range
≤
100%, invalid
periphPos
lev_percent
Peripheral heat
0
≤
range
≤
100%, invalid
nviWindow
switch
Allows the window sensor from another node to be used as the window
sensor and is typically bound to nvoWindow of another node. nviWindow
must show that the window is closed for the 300 seconds before the
logical window signal is changed to window closed. This makes it possible
for several window sensors to be "ORed" together by binding them all to
nviWindow. If any one bound window sensor shows window open, then
nviWindow shows window open for up to the 300 seconds after the last
sensor shows window closed. The states are listed below:
WindowOpen indicates the current state of the window sensors and is
calculated from nviWindow.state and the local occupancy sensor. The
local sensor and nviWindow are "ORed" together. If either the local sensor
or nviWindow shows that the window is open (nviWindow.state =
SW_ON), then WindowOpen shows that the window is open. 1 means that
the window is open and 0 means that the window is closed. When the
window, the controller mode is switched to FREEZE_PROTECT.
TempMode = Off
Heating SetPt = 46F
Table 21. Network Variable - Inputs (Continued)
Nv/field
Net Data Type
SNVT
AP Internal
Units
Description
State
Value
Meaning
SW_OFF or
SW_NUL or
other
Don’t care
Window Closed
SW_ON
0
Window Closed. If the node receives this
combination of state and value, then state
is set to SW_OFF.
SW_ON
Not Zero
Window Open
Table 22. Network Variable - Outputs
Nv/field
Net Data Type
Description
nvoApAlarm
Application alarms group 1
0: inactive alarm
1: active alarm
LowFlow
UBIT
Low airflow alarm (pressure independent control)
10 minute alarm delay.
Occupied AND DamperControl ? 100% AND PressureIndpControl AND
Airflow < ((AirflowSP – DeadBand)*0.95))
AirflowOvrd
UBIT
Airflow control loop override alarm
EmrgOvrd
UBIT
Emergency override alarm. This indicates that the network command nviEmergCmd
is active.
HtgOvrd
UBIT
Reheat or peripheral heat override alarm