Fan Coil Controller Network Variables FCU4a3

Name
SNVT type
in/
out
normal connection
nciNetConfig SNVT_config_src in when set TRUE disables inbuilt binding
nciLocation SNVT_str_asc in node label string.. application updates it when address changed
nviConfigPara single byte parameter number in used to read config parameter, node replies with data in SeaChange data structure
nviConfigData SeaChange data structure in writes new config parameter data
nviHeatDmnd SNVT_lev_cont in heat demand from Master Fan Coil or Zone Controller
nviCoolDmnd SNVT_lev_cont in cool demand from Master Fan Coil or Zone Controller
nviFanSpeed SNVT_lev_cont in fan speed selection 0 off, speeds 1 to 3
nviRoomState unsigned int in Room State used for Hotel Rooms in conjunction with Room Controller
nviOccupancy SNVT_occupancy in Occupancy control when using OCDS or Open binding
nviClock SNVT_date_time in connected to nvoClock on Boiler controller
nviDayofWeek SNVT_date_day in connected to nvoDayofWeek on Boiler controller
nviOutsideTemp SNVT_temp in connected to nvoOutsideTemp on Boiler Controller
nviBoilerTemp SNVT_temp in connected to nvoBoilerTemp on Boiler Controller
nviInstallZone SNVT_lev_cont in used to display installed zone number
nvoHeatTrim SNVT_lev_cont out
connected to nviHeatTrim on Boiler controller

heat demand% from this Zone

nvoSetDay SNVT_date_day out
connected to nviSetDay on Boiler Controller
set day of week on Boiler Controller
nvoSetTime SNVT_date_time out
connected to nviSetTime on Boiler Controller
set real time clock
nvoConstTempSP SNVT_temp out connected to nviConstTempSP on Boiler controller. Sets a minimum flow temperature setpoint for Hot water circuits or Constant temperature heating circuits
nvoCoolTrim SNVT_lev_cont out connected to nviCoolTrim on Floor Controller or Cool Demand input on Chiller Controller
nvoOccupancy SNVT_occupancy out current occupancy state
nvoZoneHeatOp SNVT_lev_cont out connected to nviHeatTrim on an Actuator controller
nvoZoneCoolOp SNVT_lev_cont out connected to nviCoolTrim on an Actuator controller
nvoFanSpeed SNVT_lev_cont out Fan Speed, used to connect to nviFanSpeed on a slave FCU
nvoRoomState unsigned int out Room State special use in Hotel Rooms
nviRemoteTemp SNVT_temp_p in connected to optional networked sensor
nviOccSetPoint SNVT_temp_p in Occupied setpoint, changes EEPROM value so update rate needs to be carefully considered
nvoSetPtOffset SNVT_temp_p in Occupied Setpoint trim, allows setpoint of each FanCoil to be indiviually trimmed
nvoSpaceTemp SNVT_temp_p * out current return air temperature
nvoDischAirTemp SNVT_temp_p * out current supply air temperature
nvoHeatOutput SNVT_lev_percent * out Heating Demand
nvoCoolOutput SNVT_lev_percent * out Cooling Demand
nvoEffectSetPt SNVT_temp_p out current setpoint
nviCondensation SNVT_lev_percent in not yet supported
nvoDigIn single byte out
poll
Eight status signals, one per bit

Frost; Occupied; Warm up; Optimum off; Cool; Condensation; spare; spare

nvoSwitch single byte out
poll
Status of eight switches one per bit
Automatic; Override; spare; spare; spare; spare; spare; Config mode
nviSwitch single byte in Writes to eight switches one per bit as above
nviPlotRequest SeaChange plot request in proprietory data structure
nciSndHrtBt SNVT_time_sec in heartbeat setting for update time of SNVT values marked with a *