Greenheck HVLS Installation, Operation And Maintenance Manual page 9

Touchscreen control for high volume, low speed fans
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BACnet MSTP Communication Points (Optional)
The following communication point lists apply to touchscreen control installations that were provided with optional
BACnet MSTP communication for building management system (BMS) integration. BACnet points must be
programmed into the building's BMS (by others) for proper communication between BMS and the touchscreen
control.
NOTE: X denotes Modbus address values between 2-31 that are set via dipswitches on the fan's variable frequency
drive circuit board.
HVLS Fan Points
Type
Instance
Variable Name
AnalogInput
0
MS_ToBACnet.BN_NumberOfFans
BinaryInput
X
Fan[X].Enabled
BinaryValue
X01
BMSFanOffOn[X]
BinaryValue
X02
Fan[X].Override
BinaryInput
X03
FanCommand.OverrideStatus[X]
AnalogValue
X04
BN_LightSet[X]
MS_ToBACnet.BN_
MultiStateInput
X05
RunCommand[X]
AnalogInput
X06
MS_ToBACnet.BN_SpeedRefSet[X]
MultiStateInput
X07
MS_ToBACnet.BN_OpStatus[X]
MS_ToBACnet.BN_
AnalogInput
X08
GroupNumber[X]
MS_ToBACnet.BN_
AnalogInput
X09
ScheduleNumber[X]
MultiStateInput
X10
MS_ToBACnet.BN_Fault[X]
BinaryValue
X11
Fan[X].ForwardReverse
Optional Temp/Humidity Sensor Points
Type
Instance
Variable Name
BinaryValue
0
SummerWinterMode
AnalogInput
1
RoomTemp.Val
AnalogInput
2
RoomRH.Val
AnalogInput
3
CeilingTemp.Val
AnalogInput
4
CeilingRH.Val
EXAMPLE: Below is an example of BACnet addressing for the fan at address 29
Type
Instance
Variable Name
MS_ToBACnet.BN_
MultiStateInput
2905
RunCommand[29]
®
Read/Write
DataType Description
Read Only
Real
Total number of fans in the system
Read Only
Bool
Fan at Modbus address [X] found in system
BMS Off/On command for fan at Modbus
Read/Write
Bool
address [X]
Read/Write
Bool
Fan at Modbus address [X] override command
Local override for fan at Modbus address
Read Only
Bool
[X] enabled
Read/Write
Real
Percentage light for fan at Modbus address [X]
OFF; COOLING; HEATING - Status of fan at
Read Only
UInt
Modbus address [X]
Read Only
Real
Fan at Modbus address [X] speed
OK; CRC ERROR; DRIVE FAULT; MOTOR TEMP
WARNING; IGBT TEMP WARNING; FIRE INPUT;
Read Only
UInt
WIND SHUT DOWN - Hardware status of fan at
Modbus address [X]
Read Only
Real
Fan at Modbus address [X] group number
Read Only
Real
Fan at Modbus address [X] schedule number
NO FAULT; MODBUS TIMEOUT; IMPACT
DETECTION; MOTOR OVER TEMP; DRIVE OVER
TEMP; BUS OVER VOLT; BUS UNDER VOLT;
Read Only
UInt
PHASE OVER CURRENT; MCU HIGH TEMP;
OVERSPEED - Drive status of fan at Modbus
address [X]
Forward/Reverse command for fan at Modbus
Read/Write
Bool
address [X]
Read/Write
DataType Description
Summer or winter mode for temp/humidity
Read/Write
Bool
operation
Read Only
Real
Temperature in C
Read Only
Real
Percentage RH
Read Only
Real
Temperature in C
Read Only
Real
Percentage RH
Read/Write
DataType Description
OFF; COOLING; HEATING - Status of fan at
Read Only
UInt
Modbus address [29]
HVLS Touchscreen Control
9

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