User's Manual

EXCEL 10 FCU CONTROLLER LNS PLUG-INS USER GUIDE
EN2B-0285GE51 R0909 38
Table C2. Configuration Variables for Excel 10 FCU Controllers
NV name field name
engineering units:
English (metric) or states
plus range
digital
state
or
value
default comments
nciRcvHrtBt SNVT_time_sec
0 to 6553 seconds
0 = Disabled
0 s from factory
This configuration variable specifies the maximum time that elapses
after the last update to
• nviApplicMode
• nviDlcShed
• nviManCool
• nviManHeat
• nviSensorOcc
• nviSetPtOffset
• nviSpaceTemp
• nviTodEvent
• nviWindow
before these NV inputs adopt their default values. Setting nciRcvHrtBt
= 0 means, that the assigned NV input does not wait for an periodic
update, and that it will never revert to any default when not receiving an
update. If nviSpaceTemp and nviApplicMode are not received at
regular intervals that are less than the heartbeat time, the controller will
assume that there is a communication failure and revert to the
"occupied" mode.
nciSndHrtBt SNVT_time_sec
0 to 6553 seconds
0 = Disabled
0 s from factory
This configuration variable specifies the maximum time that expires
before the object automatically transmits the current value of
• nvoActiveSetPt
• nvoAlarm
• nvoApplicMode
• nvoCoolOutput
• nvoFanSpeed
• nvoFcuStatus
• nvoHeatOutpu
• nvoReheatt
• nvoSensorOcc
• nvoSpaceTemp
• nvoTerminalLoad
• nvoUnitStatus
• nvoWindow
This provides a heartbeat output that can be used by the destination
objects to ensure that the node is still healthy. The heartbeat output
may be disabled by setting nciSndHrtBt = 0.
nciCntrlSettings fan_auto_mode CONTINUOUS
AUTO_MODE
0
1
AUTO_MODE This configuration variable specifies the fan operation during the
"occupied" mode. CONTINUOUS will cause the fan to run even in the
zero energy band.