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Fan coil room thermostat · BACnet points list

Siemens RDB160BNU BACnet MS/TP Fan Coil Room Thermostat BACnet points list

Updated 4 November 2026

Short answer

The RDB160BNU is an AC 24 V fan coil thermostat with BACnet MS/TP built in; it ships set to Fahrenheit (P80). Its commissioning guide prints the same 51 objects as the RDB160BN: room mode, comfort and economy setpoints, fan mode, changeover, valve outputs and setup values. MAC and device instance are set only from the thermostat's parameter menu or setup wizard.

This page lists 51 BACnet objects for the Siemens RDB160BNU BACnet MS/TP Fan Coil Room Thermostat — 26 of them writable — with each object’s type, instance number, name, engineering units and access. It is re-typed from Siemens’s own free documentation, linked below.

Manufacturer
Siemens
Model
RDB160BNU BACnet MS/TP Fan Coil Room Thermostat
Equipment
Fan coil room thermostat
Equipment type
VAV boxes & fan coils
BACnet objects
51 (26 writable)
Transport
BACnet MS/TP
Firmware
Not stated
Default device instance
0
Also known as
RDB160BNU, BACnet Room Temp Controller RDB160BNU
Source document
RDB160BNU Fan coil unit room thermostat with BACnet MS/TP communication - Commissioning Instructions · A6V12045450_en--_b · rev. 2022-06-08
Download CSV 51 rows Download EDE B.I.G.-EU JSON Manufacturer PDF ↗ Compare with your scan Download Easy BACnet Mobile App Google Play

Reference only, provided as-is: verify against Siemens’s current documentation and the live device before use. Not official Siemens information. Terms of use.

BMS integration notes: Siemens RDB160BNU BACnet MS/TP Fan Coil Room Thermostat

Integration in brief

Set the MS/TP MAC, device instance and baud rate at the thermostat, power-cycle it, then command the room mode with ROpMod (MV 5), the comfort setpoint with CmfSp (AV 33) and the fan with FanSpdMod (MV 2). Read ROpMode, HCSta, Fan3Spd and TR for status. There is no alarm object.

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.

ObjectNameWhyAccess
MV 5ROpModRoom mode command: 1 Off, 2 Economy, 5 ComfortWrite
MV 4ChoverModHeating, cooling or auto changeoverWrite
MV 2FanSpdModFan off, manual speed 1-3 or autoWrite
AV 33CmfSpComfort (occupied) setpointWrite
MI 1ROpModeCurrent mode: Off, Economy or ComfortRead
MI 2HCStaCurrently off, heating or coolingRead
MI 3Fan3SpdCurrent fan speedRead
AI 0TRRoom temperatureRead
AV 3SpTRActive controller setpointRead

Enable & remote start

ROpMod (MV 5) selects Off, Economy/Standby or Comfort from the network; value 6 hands the mode back to local control. A bus command for Off leaves only the On/Off button active on the thermostat.

Sensors & values from the BMS

TRRemote (AV 15) is a writable remote room temperature object, and the heating/cooling changeover can be sent over BACnet (ChoverMod, MV 4). The document does not describe a timeout for network values.

Network setup

Watch out for

Siemens RDB160BNU BACnet MS/TP Fan Coil Room Thermostat 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.

51 of 51 shown
Type
Other
Access
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Siemens RDB160BNU BACnet MS/TP Fan Coil Room Thermostat BACnet Points List
DescriptionStates
AImin0TRRoom temperature°CRead
AI1TChoverChange over temperature°CRead
AI2AI1Analog input°CRead
AI3UI1VRead
AI4TsuSupply air temperature°CRead
AV0AO1Analog outputVRead
AV1AO2Analog outputVRead
AV2SpTRShftSetpoint shift value°CRead
AVmin3SpTRController setpoint°CRead
AV4LoopOutControl output%Read
AV5HclVlvPosHeating coil valve position%Read
AV6CclVlvPosCooling coil valve position%Read
AV9SpHEcoHeating setpoint for Standby (Economy)°CWrite
AV10SpCEcoCooling setpoint for Standby (Economy)°CWrite
AV12PrSpShftSetpoint displacement during presence°CWrite
AV13HclVlvPosManManual value heating output%Write
AV14CclVlvPosManManual value cooling output%Write
AV15TRRemoteRemote control of room temperature°CWrite
AV16StbyDBandDead band for Standby mode°CWrite
AV27FanVarSpdMinLowest possible speed for the DC fan%Write
AV28FanVarSpdMaxHighest possible speed for the DC fan%Write
AV29TChoverCoolCooling if lower changeover temperature°CWrite
AV30TChoverHeatHeating if higher changeover temperature°CWrite
AV31RTHystRoom temperature hysteresis°CWrite
AV32CmfDBandDead band for comfort mode°CWrite
AVmin33CmfSpBasic setpoint for the controller°CWrite
AV34TSuSpCalcCalculated supply air setpoint°CRead
BI0RWndStaRoom window stateReadInactive / Active
BI2RPscDetRoom presence detectionReadInactive / Active
BI3HCChoverIndicates changeover from digital inputReadInactive / Active
BV1OutputtypeIndicates pulse prop. heatingReadInactive / Active
BV2OutputtypeIndicates pulse prop. coolingReadInactive / Active
BV33-posIncIndicates heating increaseReadInactive / Active
BV43-posDecIndicates heating decreaseReadInactive / Active
BV5FanTypeFan type select (inactive = 3-speed fan, active = DC fan)WriteInactive / Active
BV7ChoverStatusChangeover status from digital and analog inputsReadInactive / Active
BV9ShdownStateForces Off and blocks restart until reset to 0 (fire alarm lock)WriteInactive / Active
BV10ShdownSetPlaces the unit in Off modeWriteInactive / Active
BV12LockSettingsPrevents parameter menu access via displayWriteInactive / Active
LO0ControllerController PI informationRead
MImin1ROpModeCurrent running modeRead1 = Off, 2 = Economy/Standby, 3 = Not used, 4 = Not used, 5 = Comfort
MImin2HCStaCurrent control modeRead1 = Off, 2 = Heating, 3 = Cooling
MImin3Fan3SpdCurrent fan speedRead1 = Off, 2 = Fan speed 1, 3 = Fan speed 2, 4 = Fan speed 3
MV1CclVlvPosModManual/Auto cool outputWrite1 = Off, 2 = Manual output, 3 = Automatic output
MVmin2FanSpdModFan mode selectWrite1 = Off, 2 = Manual speed 1, 3 = Manual speed 2, 4 = Manual speed 3, 5 = Auto
MV3AppNrControl applicationWrite2 = 2-pipe system, 3 = 4-pipe system, 4 = 2-pipe system with electric heater
MVmin4ChoverModManual/Auto change-overWrite1 = Heating, 2 = Cooling, 3 = Auto
MVmin5ROpModRoom operating modeWrite1 = Off, 2 = Economy/Standby, 3 = Not used, 4 = Not used, 5 = Comfort, 6 = No remote control
MV6BtnCnfButtons activeWrite1 = No active buttons, 2 = Only On/Off button active, 3 = Only Up/Down buttons active, 4 = On/Off and Up/Down buttons active, 5 = Only fan button active, 6 = On/Off and fan button active, 7 = Up/Down and fan button active, 8 = All buttons active
MV7Valve 1 settingSet valve 1 typeWrite1 = DC valve, 2 = PWM, 3 = On/Off, 4 = 3-position valve
MV8Valve 2 settingSet valve 2 typeWrite1 = DC valve, 2 = PWM, 3 = On/Off, 4 = 3-position valve
Object ID lookup: Siemens RDB160BNU Thermostat point IDs by name

Integration notes

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 RDB160BNU BACnet MS/TP Fan Coil Room Thermostat 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 Siemens RDB160BNU BACnet MS/TP Fan Coil Room Thermostat

How many BACnet points does the Siemens RDB160BNU BACnet MS/TP Fan Coil Room Thermostat have?

This list has 51 BACnet objects: 5 analog inputs, 22 analog values, 3 binary inputs, 9 binary values, 1 loop, 3 multi-state inputs, 8 multi-state values. The exact set on a given unit depends on its firmware, installed options and configuration.

Which Siemens RDB160BNU BACnet MS/TP Fan Coil Room Thermostat BACnet points are writable?

26 of the 51 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 Siemens RDB160BNU BACnet MS/TP Fan Coil Room Thermostat BACnet documentation?

The source is RDB160BNU Fan coil unit room thermostat with BACnet MS/TP communication - Commissioning Instructions (A6V12045450_en--_b), revision 2022-06-08, published free by Siemens at https://sid.siemens.com/api/khub/documents/ls~MrM7S9oT7EUiMHcnrpw/content.

What are the minimum BACnet points to integrate the Siemens RDB160BNU BACnet MS/TP Fan Coil Room Thermostat?

Start with MV 5 ROpMod (Room mode command: 1 Off, 2 Economy, 5 Comfort); MV 4 ChoverMod (Heating, cooling or auto changeover); MV 2 FanSpdMod (Fan off, manual speed 1-3 or auto); AV 33 CmfSp (Comfort (occupied) setpoint); MI 1 ROpMode (Current mode: Off, Economy or Comfort); MI 2 HCSta (Currently off, heating or cooling); MI 3 Fan3Spd (Current fan speed); AI 0 TR (Room temperature); AV 3 SpTR (Active controller setpoint).

How do I enable BMS control of the Siemens RDB160BNU BACnet MS/TP Fan Coil Room Thermostat?

ROpMod (MV 5) selects Off, Economy/Standby or Comfort from the network; value 6 hands the mode back to local control. A bus command for Off leaves only the On/Off button active on the thermostat.

Can the BMS supply sensor values to the Siemens RDB160BNU BACnet MS/TP Fan Coil Room Thermostat?

TRRemote (AV 15) is a writable remote room temperature object, and the heating/cooling changeover can be sent over BACnet (ChoverMod, MV 4). The document does not describe a timeout for network values.

How do I check these points on the real RDB160BNU BACnet MS/TP Fan Coil Room Thermostat?

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 Siemens BACnet points lists

Source: RDB160BNU Fan coil unit room thermostat with BACnet MS/TP communication - Commissioning Instructions · A6V12045450_en--_b · rev. 2022-06-08. Object names, instances and units are reproduced as published; descriptions are our own.