Page 6
Table 2. Network Variable Definitions
In
dex
SNVT
Functional Block
Send
Heartbeat
Application Description
Name Type
0 nciSndHrtBt SNVT_time_sec Virtual Functional Block —
A value of 0 (zero), turns off the Send Heartbeat
function. Values between .01 seconds and 10 are
treated as 10 seconds. (10 seconds is the minimum
heartbeat supported rate.)
1 nciLocation SNVT_str_asc Virtual Functional Block — Location label string.
2 nviRequest SNVT_obj_request NodeObject —
Request an operation or a mode for a functional
block within a device. Supported requests are:
RQ_NORMAL,
RQ_UPDATE_STATUS,
RQ_REPORT_MASK.
RQ_RESET and RQ_CLEAR_RESET are sup
ported for the NodeObject function block to reset
the Prodigy controller.
3 nvoStatus SNVT_obj_status NodeObject No Reports the status for a functional block .
4 nciSetpoints SNVT_temp_setpt Virtual Functional Block —
Sets default zone temperature setpoints for the unit.
Valid ranges are 40-95 F. The cooling setpoints
must be above the corresponding heating setpoint
by the unit's Autochangeover Deadband (3 F de
fault). The Standby setpoints are not used by the
Application
5 nciOAMinPos SNVT_lev_percent Virtual Functional Block —
Sets the outdoor air damper minimum position.
Used in modes where outdoor air ventilation is re
quired, except when nviOAMinPos is valid.
6 nciSpaceRHSetpt SNVT_lev_percent Virtual Functional Block —
Defines a dehumidification setpoint for the con
trolled space. Not used when nviSpaceDehumidSP
is valid.
7 nviSpaceTemp SNVT_temp_p sccRooftop —
Supported range: 36.25-to-100 F.
Input must be updated within 5 minutes. Must be
enabled with ECTO 5.27
8 nviSetpoint SNVT_temp_p sccRooftop —
Used to set the temperature setpoints for the occu
pied mode. (Note: The unoccupied setpoints are
not changed.). If a valid value is not present, the
appropriate setpoint as configured in nciSetpoints
will be used.The “symmetrical method” is used.
The effective heat/cool setpoints for the occupied
mode are derived from nviSetpoint plus/minus half
the occupied deadbands set in the Prodigy “Elec
tronic Config To Order” parameter, 6.15 ( 3 degrees
F default):
effective_occupied_cool = nviSetpoint + 0.5
(changeover_deadband)
effective_occupied_heat = nviSetpoint - 0.5
(changeover_deadband)
9 nviSetptOffset SNVT_temp_p sccRooftop —
Used to shift the effective occupied temperature
setpoints by adding nviSetptOffset to the current
setpoints.
10 nviOccSchedule1 SNVT_tod_event sccRooftop — Only current state occupancy mode is supported.
table continued on next page
To Next Page
Loading...
Need help?
General
