CNT-PRC003-EN
11
®
Data lists
Table 2 provides an input/output listing
for Tracer VV550/551 VAV controllers.
Table 3 provides the configuration
properties for the controller. The content
of the lists conforms to both the
LonMark
®
SCC functional profile 8500
and the LonMark
®
node object.
Table 2. Input/output listing
Input description
Input
SNVT type
Output description
Output
SNVT type
Space temperature
nviSpaceTemp
SNVT_temp_p
Space temperature
nvoSpaceTemp
SNVT_temp_p
Setpoint
nviSetpoint
SNVT_temp_p
Unit status, mode
nvoUnitStatus
SNVT_hvac_status
Occupancy, schedule
nviOccSchedule
SNVT_tod_event
Effective setpoint
nvoEffectSetpt
SNVT_temp_p
Occupancy, manual
command
nviOccManCmd
SNVT_occupancy
Effective occupancy
nvoEffectOccup
SNVT_occupancy
Occupancy sensor
nviOccSensor
SNVT_occupancy
Heat cool mode
nvoHeatCool
SNVT_hvac_mode
Application mode
nviApplicMode
SNVT_hvac_mode
Setpoint
nvoSetpoint
SNVT_temp_p
Heat/cool mode input
nviHeatCool
SNVT_hvac_mode
Discharge air
temperature
nvoDischAirTemp
SNVT_temp_p
Fan speed command
nviFanSpeedCmd
SNVT_switch
Terminal load
nvoTerminalLoad
SNVT_lev_percent
Auxiliary heat enable
nviAuxHeatEnable
SNVT_switch
Space CO
2
nvoSpaceCO2
SNVT_ppm
Valve override
nviValveOverride
SNVT_hvac_overid
Effective air flow
setpoint
nvoEffectFlowSP
SNVT_flow
Flow override
nviFlowOverride
SNVT_hvac_overid
Air flow
nvoAirFlow
SNVT_flow
Emergency override
nviEmergOverride
SNVT_hvac_emerg
File table address
nvoFileDirectory*
SNVT_address
Source temperature
nviSourceTemp
SNVT_temp_p
Object status
nvoStatus*
SNVT_obj_status
Space CO
2
nviSpaceCO2
SNVT_ppm
Alarm message
nvoAlarmMessage
SNVT_str_asc
Clear alarms/
diagnostics
nviRequest*
SNVT_obj_request
* Part of the node object.
Air flow setpoint input
nviAirFlowSetpt
SNVT_flow
Ventilation ratio limit
nviVentRatioLim
SNVT_lev_percent
Ventilation for the zone
input
nviVentSetpt
SNVT_flow
* Part of the node object.
Table 3. Configuration properties
Configuration property
description
Configuration property
SNVT type
SCPT reference
Send heartbeat
nciSndHrtBt
SNVT_time_sec
SCPTmaxSendTime (49)
Occ temperature setpoints
nciSetpoints
SNVT_temp_setpt
SCPTsetPnts (60)
Minimum send time
nciMinOutTm
SNVT_time_sec
SCPTminSendTime (52)
Receive heartbeat
nciRecHrtBt
SNVT_time_sec
SCPTmaxRcvTime (48)
Location label
nciLocation
SNVT_str_asc
SCPTlocation (17)
Local bypass time
nciBypassTime
SNVT_time_min
SCPTbypassTime (34)
Manual override time
nciManualTime
SNVT_time_min
SCPTmanOverTime (35)
Space CO
2
limit
nciSpaceCO2Lim
SNVT_ppm
SCPTlimitCO2 (42)
Nominal air flow
nciNomFlow
SNVT_flow
SCPTnomAirFlow (57)
Air flow measurement gain
nciFlowGain
SNVT_multiplier
SCPTsensConstVAV (67)
Minimum air flow
nciMinFlow
SNVT_flow
SCPTminFlow (54)
Maximum air flow
nciMaxFlow
SNVT_flow
SCPTmaxFlow (51)
Minimum air flow for heat
nciMinFlowHeat
SNVT_flow
SCPTminFlowHeat (55)
Maximum air flow for heat
nciMaxFlowHeat
SNVT_flow
SCPTmaxFlowHeat (37)
Minimum flow for standby
nciMinFlowStdby
SNVT_flow
SCPTminFlowStby (56)
Firmware major version
nciDevMajVer*
n/a
SCPTdevMajVer (165)
Firmware minor version
nciDevMinVer*
n/a
SCPTdevMinVer (166)
Flow offset for tracking applications
nciFlowOffset
SNVT_flow_f
SCPToffsetFlow (265)
Local heating minimum air flow
nciMinFlowUnitHt
SNVT_flow
SCPTminFlowUnitHeat (270)
* Part of the node object.