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Zone thermostat controller (VAV / fan coil) · BACnet points list
Neptronic TROB24 thermostat controller BACnet points list
Updated 6 November 2026
TROB24 is a room thermostat-controller with a BACnet MS/TP communication module. The user guide lists 90 objects: temperatures, demands, day/night setpoints and PI settings, control and user modes, night setback, input functions and output sources/modes, and airflow balancing objects.
This page lists 90 BACnet objects for the Neptronic TROB24 thermostat controller — 75 of them writable — with each object’s type, instance number, name, engineering units and access. It is re-typed from Neptronic’s own free documentation, linked below.
- Manufacturer
- Neptronic
- Model
- TROB24 thermostat controller
- Equipment
- Zone thermostat controller (VAV / fan coil)
- Equipment type
- VAV boxes & fan coils
- BACnet objects
- 90 (75 writable)
- Transport
- BACnet MS/TP
- Firmware
- Not stated
- Default device instance
- 153000 + MAC address
- Also known as
- TROB24, TROB, TROB24T4, Neptronic TROB
Reference only, provided as-is: verify against Neptronic’s current documentation and the live device before use. Not official Neptronic information. Terms of use.
BMS integration notes: Neptronic TROB24 thermostat controller
Set the day/night state with MSV.13 NightSetBackMode, the user mode with MSV.3 and write the day setpoint AV.7. Read AV.1 ControlTemp, MSV.9 NightSetBack and the heating/cooling demands AV.2/AV.3.
Minimum points to map
The short list most integrators start with — enough to run the unit from a BMS. Map more as the job needs.
| Object | Name | Why | Access |
|---|---|---|---|
| MV 13 | NightSetBackMode | Day/night command: locally, day, night | Write |
| MV 3 | UserControlMode | User mode: auto, heating, cooling, off | Write |
| AV 7 | TempSetPointDay | Day temperature setpoint | Write |
| MV 9 | NightSetBack | Actual state: day, night, override | Read |
| AV 1 | ControlTemp | Temperature used for control | Read |
| AV 2 | HeatingDemand1 | Heating demand 1, % | Read |
| AV 3 | CoolingDemand1 | Cooling demand 1, % | Read |
Enable & remote start
MSV.13 NightSetBackMode: Locally lets the thermostat manage day/night; Day and Night force the state from the BMS.
Sensors & values from the BMS
BV.6 ControlTempSource selects the internal or external sensor; no network temperature object is listed.
Network setup
- BV.1 TempUnit selects Celsius or Fahrenheit.
Watch out for
- Out_of_Service is writable only for objects whose Present_Value is not, and returns to normal automatically.
Neptronic TROB24 thermostat controller BACnet objects
Type: AI, AO, AV, BI, BO, BV, MI/MO/MV (multi-state) · Access: Read read-only, Write writable, Command writable with a priority array.
| Description | States | |||||
|---|---|---|---|---|---|---|
| AI | 1 | InternTemp | °F/°C | Read | ||
| AI | 2 | ExternTemp | °F/°C | Read | ||
| AI | 3 | ChangeOverTemp | °F/°C | Read | ||
| AI | 10 | PressureSensor | V | Read | ||
| AVmin | 1 | ControlTemp | °F/°C | Read | ||
| AVmin | 2 | HeatingDemand1 | % | Read | ||
| AVmin | 3 | CoolingDemand1 | % | Read | ||
| AV | 5 | InternTempOffset | °C | Write | ||
| AV | 6 | ExternTempOffset | °C | Write | ||
| AVmin | 7 | TempSetPointDay | °F/°C | Write | ||
| AV | 8 | MinSetPointDay | °F/°C | Write | ||
| AV | 9 | MaxSetPointDay | °F/°C | Write | ||
| AV | 10 | TempSetPointCoolNight | °F/°C | Write | ||
| AV | 11 | TempSetPointHeatNight | °F/°C | Write | ||
| AV | 12 | CoolingPropBand1 | °F/°C | Write | ||
| AV | 13 | HeatingPropBand1 | °F/°C | Write | ||
| AV | 14 | CoolingDeadBand1 | °F/°C | Write | ||
| AV | 15 | HeatingDeadBand1 | °F/°C | Write | ||
| AV | 23 | ChangeOverSetPoint | °F/°C | Write | ||
| AV | 24 | NightSetBackDelay | min | Write | ||
| AV | 26 | IntTimeFactor | s | Write | ||
| AV | 27 | CoolingAntiCycleDelay | min | Write | ||
| AV | 31 | FloatingMotorTiming1 | s | Write | ||
| AV | 42 | CoolingDemand2 | % | Read | ||
| AV | 43 | CoolingPropBand2 | °F/°C | Write | ||
| AV | 44 | CoolingDeadBand2 | °F/°C | Write | ||
| AV | 46 | HeatingDemand2 | % | Read | ||
| AV | 47 | HeatingPropBand2 | °F/°C | Write | ||
| AV | 48 | HeatingDeadBand2 | °F/°C | Write | ||
| AV | 49 | ChangeOverDemand | % | Read | ||
| AV | 50 | ChangeOverPropBand | °F/°C | Write | ||
| AV | 51 | ChangeOverDeadBand | °F/°C | Write | ||
| AV | 52 | AnalogOutput1Min | V | Write | ||
| AV | 53 | AnalogOutput2Min | V | Write | ||
| AV | 54 | AnalogOutput1Max | V | Write | ||
| AV | 55 | AnalogOutput2Max | V | Write | ||
| AV | 56 | AnalogOutput1MinPos | % | Write | ||
| AV | 57 | AnalogOutput2MinPos | % | Write | ||
| AV | 58 | FloatingMotorTiming2 | s | Write | ||
| AV | 61 | PressureNumFilter | s | Write | ||
| AV | 62 | AirFlowVnomOrKFactor | Write | |||
| AV | 63 | AirFlowCoolMin | Write | |||
| AV | 64 | AirFlowCoolMax | Write | |||
| AV | 65 | AirFlowHeatMin | Write | |||
| AV | 66 | AirFlowHeatMax | Write | |||
| AV | 67 | AirFlowIntFactor | min | Write | ||
| AV | 68 | ActualAirFlow | Read | |||
| AV | 69 | AirFlowSetPoint | Read | |||
| AV | 71 | AdjustAirFlowKFactor | Write | |||
| AV | 72 | AnalogOutput1 | Writable when MSV.16 is Off (output not used internally) | Write | ||
| AV | 73 | AnalogOutput2 | Writable when MSV.17 is Off (output not used internally) | Write | ||
| AV | 160 | AirFlowOffset | Write | |||
| BI | 1 | UIxContactInput | Read | 0=Open, 1=Close | ||
| BV | 1 | TempUnit | Write | 0=Celsius, 1=Fahrenheit | ||
| BV | 2 | TempSetPointLock | Write | 0=Disable, 1=Enable | ||
| BV | 3 | UserControlOffMode | Write | 0=Enable, 1=Disable | ||
| BV | 6 | ControlTempSource | Write | 0=Intern.Sensor, 1=Extern.Sensor | ||
| BV | 7 | ChangeOverMode | Read | 0=Cooling, 1=Heating | ||
| BV | 14 | AirFlowBalancing | Write | 0=Disable, 1=Enable | ||
| BV | 15 | AirFlowBalMode | Write | 0=Minimum, 1=Maximum | ||
| BV | 16 | AntiFreezeProtection | Write | 0=Off, 1=On | ||
| BV | 17 | FloatingMotor1Direction | Write | 0=Direct, 1=Reverse | ||
| BV | 18 | FloatingMotor2Direction | Write | 0=Direct, 1=Reverse | ||
| BV | 29 | OnOffOutput1 | Write | 0=Off, 1=On | ||
| BV | 30 | OnOffOutput2 | Write | 0=Off, 1=On | ||
| BV | 31 | OnOffOutput3 | Write | 0=Off, 1=On | ||
| BV | 32 | OnOffOutput4 | Write | 0=Off, 1=On | ||
| MV | 1 | UniversalInput1Function | Write | 1=Off, 2=Extern.Sensor, 3=ChangeOverSensor, 4=Ch.Ov.ContactNorm.Cool, 5=Ch.Ov.ContactNorm.Heat, 6=NightSetBack, 7=Pressure0-10V, 8=AirFlow0-10V | ||
| MVmin | 3 | UserControlMode | Write | States available if MSV.4 is set to "Auto" 1= Auto, 2= Heating 3= Cooling 4= Off (only if BV.3 is set to "Enable") States available if MSV.4 is set to "Cool" 1= Cooling 2= Off (only if BV.3 is set to "Enable") States... | ||
| MV | 4 | ControlMode | Write | 1=Auto, 2=Heating, 3=Cooling, 4=HeatingOrCooling | ||
| MVmin | 9 | NightSetBack | Read | 1=Day, 2=Night, 3=Override | ||
| MV | 12 | UniversalInput2Function | Write | 1=Off, 2=Extern.Sensor, 3=ChangeOverSensor, 4=Ch.Ov.ContactNorm.Cool, 5=Ch.Ov.ContactNorm.Heat, 6=NightSetBack, 7=Pressure0-10V, 8=AirFlow0-10V | ||
| MVmin | 13 | NightSetBackMode | Write | 1=Locally, 2=Day, 3=Night | ||
| MV | 15 | UniversalInput3Function | Write | 1=Off, 2=Extern.Sensor, 3=ChangeOverSensor, 4=Ch.Ov.ContactNorm.Cool, 5=Ch.Ov.ContactNorm.Heat, 6=NightSetBack, 7=Pressure0-10V, 8=AirFlow0-10V | ||
| MV | 16 | AnalogOutput1Source | Write | 1=Off, 2=ChangeOverDemand, 3=CoolingDemand1, 4=CoolingDemand2, 5=HeatingDemand1, 6=HeatingDemand2 | ||
| MV | 17 | AnalogOutput2Source | Write | 1=Off, 2=ChangeOverDemand, 3=CoolingDemand1, 4=CoolingDemand2, 5=HeatingDemand1, 6=HeatingDemand2 | ||
| MV | 18 | TO1Source | Write | 1= Off 2= ChangeOverDemand 3= CoolingDemand1 4= CoolingDemand2 5= HeatingDemand1 6= HeatingDemand2 States available if MSV.22 is set to "Pulsing": 1= HeatingDemand1 2= HeatingDemand2 | ||
| MV | 19 | TO2Source | Write | 1= Off 2= ChangeOverDemand 3= CoolingDemand1 4= CoolingDemand2 5= HeatingDemand1 6= HeatingDemand2 States available if MSV.23 is set to "Pulsing": 1= HeatingDemand1 2= HeatingDemand2 | ||
| MV | 20 | TO3Source | Write | 1= Off 2= ChangeOverDemand 3= CoolingDemand1 4= CoolingDemand2 5= HeatingDemand1 6= HeatingDemand2 States available if MSV.24 is set to "Pulsing": 1= HeatingDemand1 2= HeatingDemand2 | ||
| MV | 21 | TO4Source | Write | 1= Off 2= ChangeOverDemand 3= CoolingDemand1 4= CoolingDemand2 5= HeatingDemand1 6= HeatingDemand2 States available if MSV.25 is set to "Pulsing": 1= HeatingDemand1 2= HeatingDemand2 | ||
| MV | 22 | TO1Mode | Write | 1=On_Off, 2=Pulsing, 3=Floating | ||
| MV | 23 | TO2Mode | Write | 1= On_Off 2= Pulsing States available if MSV 22 is set to "Floating" 1= Floating | ||
| MV | 24 | TO3Mode | Write | 1=On_Off, 2=Pulsing, 3=Floating | ||
| MV | 25 | TO4Mode | Write | 1= On_Off 2= Pulsing States available if MSV 24 is set to "Floating" 1= Floating | ||
| MV | 26 | TO1ClosePos | Write | 1=20%, 2=40%, 3=60%, 4=80% | ||
| MV | 27 | TO2ClosePos | Write | 1=20%, 2=40%, 3=60%, 4=80% | ||
| MV | 28 | TO3ClosePos | Write | 1=20%, 2=40%, 3=60%, 4=80% | ||
| MV | 29 | TO4ClosePos | Write | 1=20%, 2=40%, 3=60%, 4=80% | ||
| MV | 31 | PressureIndOutput | Write | if MSV.22 and MSV.24 are set to "Floating" 1= Floating1 2= AnalogOutput1 3= AnalogOutput2 4= Floating2 if MSV.22 is set to "Floating" 1= Floating1 2= AnalogOutput1 3= AnalogOutput2 if MSV.24 is set to "Floating" 1=... | ||
| MV | 33 | ChangeOverControlMode | Write | 1=Locally, 2=Cooling, 3=Heating |
No points match these filters.
Object ID lookup: Neptronic TROB24 thermostat controller point IDs by name
AI1InternTempAI2ExternTempAI3ChangeOverTempAI10PressureSensorAV1ControlTempAV2HeatingDemand1AV3CoolingDemand1AV5InternTempOffsetAV6ExternTempOffsetAV7TempSetPointDayAV8MinSetPointDayAV9MaxSetPointDayAV10TempSetPointCoolNightAV11TempSetPointHeatNightAV12CoolingPropBand1AV13HeatingPropBand1AV14CoolingDeadBand1AV15HeatingDeadBand1AV23ChangeOverSetPointAV24NightSetBackDelayAV26IntTimeFactorAV27CoolingAntiCycleDelayAV31FloatingMotorTiming1AV42CoolingDemand2AV43CoolingPropBand2AV44CoolingDeadBand2AV46HeatingDemand2AV47HeatingPropBand2AV48HeatingDeadBand2AV49ChangeOverDemandAV50ChangeOverPropBandAV51ChangeOverDeadBandAV52AnalogOutput1MinAV53AnalogOutput2MinAV54AnalogOutput1MaxAV55AnalogOutput2MaxAV56AnalogOutput1MinPosAV57AnalogOutput2MinPosAV58FloatingMotorTiming2AV61PressureNumFilterAV62AirFlowVnomOrKFactorAV63AirFlowCoolMinAV64AirFlowCoolMaxAV65AirFlowHeatMinAV66AirFlowHeatMaxAV67AirFlowIntFactorAV68ActualAirFlowAV69AirFlowSetPointAV71AdjustAirFlowKFactorAV72AnalogOutput1AV73AnalogOutput2AV160AirFlowOffsetBI1UIxContactInputBV1TempUnitBV2TempSetPointLockBV3UserControlOffModeBV6ControlTempSourceBV7ChangeOverModeBV14AirFlowBalancingBV15AirFlowBalModeBV16AntiFreezeProtectionBV17FloatingMotor1DirectionBV18FloatingMotor2DirectionBV29OnOffOutput1BV30OnOffOutput2BV31OnOffOutput3BV32OnOffOutput4MV1UniversalInput1FunctionMV3UserControlModeMV4ControlModeMV9NightSetBackMV12UniversalInput2FunctionMV13NightSetBackModeMV15UniversalInput3FunctionMV16AnalogOutput1SourceMV17AnalogOutput2SourceMV18TO1SourceMV19TO2SourceMV20TO3SourceMV21TO4SourceMV22TO1ModeMV23TO2ModeMV24TO3ModeMV25TO4ModeMV26TO1ClosePosMV27TO2ClosePosMV28TO3ClosePosMV29TO4ClosePosMV31PressureIndOutputMV33ChangeOverControlMode
Integration notes
- The guide prints footnote numbers right after some object names (for example UserControlOffMode13); they are removed here.
- Present_Value is writable for every AV except AV.1-3, AV.42, AV.46, AV.49, AV.68, AV.69; every BV except BV.7; every MSV except MSV.9.
- MSV state numbers and texts can change with the set-up; read State_Text from the device.
- The guide has no description column, so descriptions are empty.
Check it against the live device. A points list tells you what the controller can expose; the unit in front of you may differ by firmware or installed options. This list is provided as-is for reference only and may contain mistakes — confirming it before you write, map or commission anything is up to you (terms). Easy BACnet scans a network for BACnet IP devices from an Android phone, reads every object on the TROB24 thermostat controller and exports what it actually has to Excel — free. New to BACnet? Start with what a BACnet points list is and what the object types mean.
Questions about the Neptronic TROB24 thermostat controller
How many BACnet points does the Neptronic TROB24 thermostat controller have?
This list has 90 BACnet objects: 4 analog inputs, 48 analog values, 1 binary input, 14 binary values, 23 multi-state values. The exact set on a given unit depends on its firmware, installed options and configuration.
Which Neptronic TROB24 thermostat controller BACnet points are writable?
75 of the 90 objects accept a write. Points marked Command have a priority array: a write holds until it is released, so release it back to automatic when you are done.
Where is the official Neptronic TROB24 thermostat controller BACnet documentation?
The source is TROB24 BACnet Communication Module User Guide (TROB24-BACnet-211026-EUL), revision 2021-10-26, published free by Neptronic at https://www.neptronic.com/controls/PDF/TROB24-BACnet-211026-EUL.pdf.
What are the minimum BACnet points to integrate the Neptronic TROB24 thermostat controller?
Start with MV 13 NightSetBackMode (Day/night command: locally, day, night); MV 3 UserControlMode (User mode: auto, heating, cooling, off); AV 7 TempSetPointDay (Day temperature setpoint); MV 9 NightSetBack (Actual state: day, night, override); AV 1 ControlTemp (Temperature used for control); AV 2 HeatingDemand1 (Heating demand 1, %); AV 3 CoolingDemand1 (Cooling demand 1, %).
How do I enable BMS control of the Neptronic TROB24 thermostat controller?
MSV.13 NightSetBackMode: Locally lets the thermostat manage day/night; Day and Night force the state from the BMS.
Can the BMS supply sensor values to the Neptronic TROB24 thermostat controller?
BV.6 ControlTempSource selects the internal or external sensor; no network temperature object is listed.
How do I check these points on the real TROB24 thermostat controller?
Scan the network with a BACnet IP browser such as Easy BACnet, open the device and compare its object list with this table. Anything missing is usually an option that isn't installed or a point that is disabled in the controller's configuration.
More Neptronic BACnet points lists
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Neptronic EVCB44N Series VAV Controller
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Neptronic SK300 / SKE (legacy) Steam Humidifier with NEPIC BACnet module
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Neptronic SKV evaporative (media) humidifiers with up to four modules.
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Source: TROB24 BACnet Communication Module User Guide · TROB24-BACnet-211026-EUL · rev. 2021-10-26. Object names, instances and units are reproduced as published; descriptions are our own.