Easy BACnet
  1. Home
  2. BACnet points lists
  3. Siemens
  4. RDS120.B Smart Thermostat (BACnet version of RDS120)

Smart room thermostat · BACnet points list

Siemens RDS120.B Smart Thermostat (BACnet version of RDS120) BACnet points list

Updated 12 November 2026

Short answer

The RDS120.B is a touchscreen room thermostat whose BACnet object table covers every application it can run: fan coil, heat pump, DX, electric and gas heat, humidity and outside-air damper control. Many objects exist once per input or output variant, and nearly every temperature object has a °F twin at instance + 256 named with _US.

This page lists 380 BACnet objects for the Siemens RDS120.B Smart Thermostat (BACnet version of RDS120) — 81 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
RDS120.B Smart Thermostat (BACnet version of RDS120)
Equipment
Smart room thermostat
Equipment type
Thermostats, sensors & meters
BACnet objects
380 (81 writable)
Transport
—
Firmware
Not stated
Also known as
RDS120.B, RDS120B, RDS120, Siemens Smart Thermostat, RDS120 BACnet
Source document
RDS120, RDS120.B Smart Thermostat Commissioning · A6V11214854_enUS_c · rev. 11/23/2021
Download CSV 380 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 RDS120.B Smart Thermostat (BACnet version of RDS120)

Integration in brief

Command the room operating mode with MV 75 ROpMod and set the Comfort heating and cooling setpoints (AV 176 / AV 191, or the _US twins). Read the present mode and setpoints, the room temperature and the heating/cooling state back. Map only the objects for the application and inputs actually configured.

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 75ROpModRoom operating mode command: 1 = Protection ... 4 = ComfortCommand
AV 176PrSpHCmfComfort heating setpoint, °CCommand
AV 191SpCCmfComfort cooling setpoint, °CCommand
MV 76OccModOccupancy: 1 = Off, 2 = Absent, 3 = PresentCommand
MV 86PrOpModRsnPresent operating modeCommand
AI 0TRBltnBuilt-in room temperature, °CRead
AV 171PrSpHPresent heating setpoint, °CCommand
AV 186PrSpCPresent cooling setpoint, °CCommand
MV 80HCStaHeating/cooling stateRead

Network setup

Watch out for

Siemens RDS120.B Smart Thermostat (BACnet version of RDS120) 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.

Note: the source document has no read/write column, so access here is inferred from the object type (inputs read-only, values writable). Confirm on the live controller before writing.

380 of 380 shown
Type
Multi-stateOther
Access
Show
Siemens RDS120.B Smart Thermostat (BACnet version of RDS120) BACnet Points List
DescriptionStates
AImin0TRBltnBuilt-in room air temperature sensor°CRead
AI256TRBltn_USBuilt-in room air temperature sensor_US°FRead
AI1HulRelRBltnBuilt-in room air rel.humidity sensor%RHRead
AI50AQualRBltnBuilt-in room air quality sensorppmRead
AI19TR(1)Room temperature 1; input Temperature (LG-Ni1000, -50…180°C)°CRead
AI275TR(1)_USRoom temperature 1_US; input Temperature (LG-Ni1000, -50…180°C)°FRead
AI20TR(1)Room temperature 1; input 0…10V DC°CRead
AI276TR(1)_USRoom temperature 1_US; input 0…10V DC°FRead
AI21TR(1)Room temperature 1; input Temperature (NTC 10K)°CRead
AI277TR(1)_USRoom temperature 1_US; input Temperature (NTC 10K)°FRead
AI22TR(1)Room temperature 1; input Temperature (Pt1000, EU)°CRead
AI278TR(1)_USRoom temperature 1_US; input Temperature (Pt1000, EU)°FRead
AI23TR(1)Room temperature 1; input Temperature (Pt1000, NA)°CRead
AI279TR(1)_USRoom temperature 1_US; input Temperature (Pt1000, NA)°FRead
AI14TR(2)Room temperature 2; input Temperature (LG-Ni1000, -50…180°C)°CRead
AI270TR(1)_USRoom temperature 2_US; input Temperature (LG-Ni1000, -50…180°C)°FRead
AI15TR(2)Room temperature 2; input 0…10V DC°CRead
AI271TR(2)_USRoom temperature 2_US; input 0…10V DC°FRead
AI16TR(2)Room temperature 2; input Temperature (NTC 10K)°CRead
AI272TR(2)_USRoom temperature 2_US; input Temperature (NTC 10K)°FRead
AI17TR(2)Room temperature 2; input Temperature (Pt1000, EU)°CRead
AI273TR(2)_USRoom temperature 2_US; input Temperature (Pt1000, EU)°FRead
AI18TR(2)Room temperature 2; input Temperature (Pt1000, NA)°CRead
AI274TR(2)_USRoom temperature 2_US; input Temperature (Pt1000, NA)°FRead
AI4TOaOutside air temperature; input Temperature (LG-Ni1000, -50…180°C)°CRead
AI260TOa_USOutside air temperature_US; input Temperature (LG-Ni1000, -50…180°C)°FRead
AI5TOaOutside air temperature; input 0…10V DC°CRead
AI261TOa_USOutside air temperature_US; input 0…10V DC°FRead
AI6TOaOutside air temperature; input Temperature (NTC 10K)°CRead
AI262TOa_USOutside air temperature_US; input Temperature (NTC 10K)°FRead
AI7TOaOutside air temperature; input Temperature (Pt1000, EU)°CRead
AI263TOa_USOutside air temperature_US; input Temperature (Pt1000, EU)°FRead
AI8TOaOutside air temperature; input Temperature (Pt1000, NA)°CRead
AI264TOa_USOutside air temperature_US; input Temperature (Pt1000, NA)°FRead
AI9TOaOutside air temperature; input Temperature (LG-Ni1000, -50…180°C)°CRead
AI265TOa_USOutside air temperature_US; input Temperature (LG-Ni1000, -50…180°C)°FRead
AI10TOaOutside air temperature; input 0…10V DC°CRead
AI266TOa_USOutside air temperature_US; input 0…10V DC°FRead
AI11TOaOutside air temperature; input Temperature (NTC 10K)°CRead
AI267TOa_USOutside air temperature_US; input Temperature (NTC 10K)°FRead
AI12TOaOutside air temperature; input Temperature (Pt1000, EU)°CRead
AI268TOa_USOutside air temperature_US; input Temperature (Pt1000, EU)°FRead
AI13TOaOutside air temperature; input Temperature (Pt1000, NA)°CRead
AI269TOa_USOutside air temperature_US; input Temperature (Pt1000, NA)°FRead
AI3HulRelR(1)Relative humidity for room 1; input 0…10V DC%RHRead
AI2HulRelR(2)Relative humidity for room 2; input 0…10V DC%RHRead
AI48AQualR(1)Room air quality 1; input 0…10V DCppmRead
AI49AQualR(2)Room air quality 2; input 0…10V DCppmRead
AV155PrSpHuPresent serpoint for humidity%RHCommand
AV160PrSpDHuPresent dehumidification setpoint%RHCommand
AV165PrSpVntPresent ventilation setpointppmCommand
AVmin171PrSpHPresent heating setpoint°CCommand
AV427PrSpH_USPresent heating setpoint_US°FCommand
AVmin176PrSpHCmfComfort heating setpoint°CCommand
AV432PrSpHCmf_USComfort heating setpoint_US°FCommand
AVmin186PrSpCPresent cooling setpoint°CCommand
AV442PrSpC_USPresent cooling setpoint_US°FCommand
AVmin191SpCCmfComfort cooling setpoint°CCommand
AV447SpCCmf_USComfort cooling setpoint_US°FCommand
AV180SpTRRoom temperature setpoint°CCommand
AV436SpTR_USRoom temperature setpoint_US°FCommand
AV181SpTRShftRoom temperature setpoint shiftKCommand
AV437SpTRShft_USRoom temperature setpoint shift_US°FCommand
AV153AQualRRsResult of room air qualityppmRead
AV154TRRsResult of room temperature°CRead
AV410TRRs_USResult of room temperature_US°FRead
AV172PrSpHCmfPresent comfort heating setpoint°CRead
AV428PrSpHCmf_USPresent comfort heating setpoint_US°FRead
AV173PrSpHPcfPresent economy heating setpoint°CRead
AV429PrSpHPcf_USPresent economy heating setpoint_US°FRead
AV174PrSpHEcoPresent unoccupied heating setpoint°CRead
AV430PrSpHEco_USPresent unoccupied heating setpoint_US°FRead
AV175PrSpHPrtPresent protection heating setpoint°CRead
AV431PrSpHPrt_USPresent protection heating setpoint_US°FRead
AV187PrSpCCmfPresent comfort cooling setpoint°CRead
AV443PrSpCCmf_USPresent comfort cooling setpoint_US°FRead
AV188PrSpCPcfPresent economy cooling setpoint°CRead
AV444PrSpCPcf_USPresent economy cooling setpoint_US°FRead
AV189PrSpCEcoPresent unoccupied cooling setpoint°CRead
AV445PrSpCEco_USPresent unoccupied cooling setpoint_US°FRead
AV190PrSpCPrtPresent protection cooling setpoint°CRead
AV446PrSpCPrt_USPresent protection cooling setpoint_US°FRead
AV183RHuRelRelative humidity for room%RHRead
AV184RAQualRoom air qualityppmRead
AV185RTempRoom temperature°CRead
AV441Rtemp_USRoom temperature_US°FRead
AV170HuRelRRsResult of relative humidity for room%RHRead
AV195DmpOaCReqOutside air damper cooling request%Read
AV196DmpOaVntReqOutside air damper ventilation request%Read
AV197FanVntReqFan ventilation request%Read
AV200CclCReqCooling coil cooling request%Read
AV201CclDhuReqCooling coil dehumidification request%Read
AV202CclCReqCooling coil cooling request%Read
AV203CclDhuReqCooling coil dehumidification request%Read
AV207HCclCReqHeating/cooling coil cooling request%Read
AV208HCclHReqHeating/cooling coil heating request%Read
AV209HCclDhuReqHeating/cooling coil dehmdf.request%Read
AV204HCclCReqHeating/cooling coil cooling request%Read
AV205HCclHReqHeating/cooling coil heating request%Read
AV206HCclDhuReqHeating/cooling coil dehmdf.request%Read
AV210DhumDhuReqDehumidifier dehumidification request%Read
AV211HclHReqHeating coil heating request%Read
AV212HclHReqHeating coil heating request%Read
AV213HclHReqHeating coil heating request%Read
AV214HclHReqHeating coil heating request%Read
AV215HclHReqHeating coil heating request%Read
AV216HclHReqHeating coil heating request%Read
AV217HumHuReqHumidifier humidification request%Read
AV218DhumFrsdDhuReqDehumidifier free-standing dehmdf.req.%Read
AV219HumFrsdHuReqHumidifier free-standing hmdf.request%Read
AV220TREffEffective room temperature°CRead
AV476TREff_USEffective room temperature_US°FRead
AV221TOaEffEffective outside air temperature°CRead
AV477TOaEff_USEffective outside air temperature_US°FRead
AV254AppNrApplication numberRead
AV156SpHuRelRCmfComfort humidity setpoint%RHRead
AV157SpHuRelRPcfEconomy humidity setpoint%RHRead
AV158SpHuRelREcoUnoccupied humidity setpoint%RHRead
AV159SpHuRelRPrtProtection humidity setpoint%RHRead
AV250SpDhuRelRCmfComfort dehum. setpoint%RHRead
AV251SpDhuRelRPcfEconomy dehum. setpoint%RHRead
AV252SpDhuRelREcoUnoccupied dehum. setpoint%RHRead
AV253SpDhuRelRPrtProtection dehum. setpoint%RHRead
AV166SpAQualRCmfComfort air quality setpointppmRead
AV167SpAQualRPcfEconomy air quality setpointppmRead
AV168SpAQualREcoUnoccupied air quality setpointppmRead
AV169SpAQualRPrtProtection air quality setpointppmRead
AV177SpHPcfEconomy heating setpoint°CRead
AV433SpHPcf_USEconomy heating setpoint_US°FRead
AV178SpHEcoUnoccupied heating setpoint°CRead
AV434SpHEco_USUnoccupied heating setpoint_US°FRead
AV179SpHPrtProtection heating setpoint°CRead
AV435SpHPrt_USProtection heating setpoint_US°FRead
AV192SpCPcfEconomy cooling setpoint°CRead
AV448SpCPcf_USEconomy cooling setpoint_US°FRead
AV193SpCEcoUnoccupied cooling setpoint°CRead
AV449SpCEco_USUnoccupied cooling setpoint_US°FRead
AV194SpCPrtProtection cooling setpoint°CRead
AV450SpCPrt_USProtection cooling setpoint_US°FRead
AV224LockHclTOaHiOutdoor temp. to disable heat°CRead
AV480LockHclTOaHi_USOutdoor temp. to disable heat_US°FRead
AV225LockHclTOaHiOutdoor temp. to disable heat°CRead
AV481LockHclTOaHi_USOutdoor temp. to disable heat_US°FRead
AV226LockHclTOaHiOutdoor temp. to disable heat°CRead
AV482LockHclTOaHi_USOutdoor temp. to disable heat_US°FRead
AV222LockHpuTOaLoHP compressor lockout low temp.°CRead
AV478LockHpuTOaLo_USHP compressor lockout low temp._US°FRead
AV223LockHpuTOaLoHP compressor lockout low temp.°CRead
AV479LockHpuTOaLo_USHP compressor lockout low temp._US°FRead
AV227TR1Val0VX1 room temp. ref. at 0V°CRead
AV483TR1Val0V_USX1 room temp. ref. at 10V_US°FRead
AV228TR1Val10VX1 room temp. ref. at 10V°CRead
AV484TR1Val0V_USX1 room temp. ref. at 10V_US°FRead
AV244TR2MsvAdjX2 temp. sensor adj.KRead
AV500TR2MsvAdj_USX2 temp. sensor adj._US°FRead
AV245TR2MsvAdjX2 temp. sensor adj.KRead
AV501TR2MsvAdj_USX2 temp. sensor adj._US°FRead
AV246TR2MsvAdjX2 temp. sensor adj.KRead
AV502TR2MsvAdj_USX2 temp. sensor adj._US°FRead
AV247TR2MsvAdjX2 temp. sensor adj.KRead
AV503TR2MsvAdj_USX2 temp. sensor adj._US°FRead
AV248TR2MsvAdjX2 temp. sensor adj.KRead
AV504TR2MsvAdj_USX2 temp. sensor adj._US°FRead
AV239TR1MsvAdjX1 temp. sensor adj.KRead
AV495TR1MsvAdj_USX1 temp. sensor adj._US°FRead
AV240TR1MsvAdjX1 temp. sensor adj.KRead
AV496TR1MsvAdj_USX1 temp. sensor adj._US°FRead
AV241TR1MsvAdjX1 temp. sensor adj.KRead
AV497TR1MsvAdj_USX1 temp. sensor adj._US°FRead
AV242TR1MsvAdjX1 temp. sensor adj.KRead
AV498TR1MsvAdj_USX1 temp. sensor adj._US°FRead
AV243TR1MsvAdjX1 temp. sensor adj.KRead
AV499TR1MsvAdj_USX1 temp. sensor adj._US°FRead
AV249TRBltnMsvAdjBuilt-in temp. sensor adj.KRead
AV505TRBltnMsvAdj_USBuilt-in temp. sensor adj._US°FRead
AV238DiffTRTOaMinCMin.diff.room temp./outs.air temp.f.coolKRead
AV494DiffTRTOaMinC_USMin.diff.room temp./outs.air temp.f.cool_US°FRead
AV237HDvnMaxDhuMax.deviation heating f.dehumidificationKRead
AV493HDvnMaxDhu_USMax.deviation heating f.dehumidification_US°FRead
AV236SpTRMinCCmfMin. cooling setpoint°CRead
AV492SpTRMinCCmf_USMin. cooling setpoint_US°FRead
AV235SpTRMaxHCmfMax. heating setpoint°CRead
AV491SpTRMaxHCmf_USMax. heating setpoint_US°FRead
AV233TOaVal10VOutside temp. ref. at 10V°CRead
AV489TOaVal10V_USOutside temp. ref. at 10V_US°FRead
AV234TOaVal10VOutside temp. ref. at 10V°CRead
AV490TOaVal10V_USOutside temp. ref. at 10V_US°FRead
AV231TOaVal10VOutside temp. ref. at 0V°CRead
AV487TOaVal10V_USOutside temp. ref. at 10V_US°FRead
AV232TOaVal10VOutside temp. ref. at 0V°CRead
AV488TOaVal10V_USOutside temp. ref. at 10V_US°FRead
AV230TR2Val10VX2 room temp. ref. at 10V°CRead
AV486TR2Val10V_USX2 room temp. ref. at 10V_US°FRead
AV229TR2Val10VX2 room temp. ref. at 0V°CRead
AV485TR2Val10V_USX2 room temp. ref. at 10V_US°FRead
BI0PrxDetBltnBuilt-in proximity detectorRead0=Inactive, 1=Active
BI1PscDetBltnBuilt-in presence detectorRead0=Inactive, 1=Active
BI2TchDetBltnBuilt-in touch detectorRead0=Inactive, 1=Active
BI5CdnMon(1)Condensation monitor 1Read0=Off, 1=On
BI6CdnMon(1)Condensation monitor 1Read0=Off, 1=On
BI3CdnMon(2)Condensation monitor 2Read0=Off, 1=On
BI4CdnMon(2)Condensation monitor 2Read0=Off, 1=On
BI9UCont(1)Universal contact 1Read0=Off, 1=On
BI10UCont(1)Universal contact 1Read0=Off, 1=On
BI7UCont(2)Universal contact 2Read0=Off, 1=On
BI8UCont(2)Universal contact 2Read0=Off, 1=On
BI13PscDet(1)Presence detector 1Read0=Absent, 1=Present
BI14PscDet(1)Presence detector 1Read0=Absent, 1=Present
BI11PscDet(2)Presence detector 2Read0=Absent, 1=Present
BI12PscDet(2)Presence detector 2Read0=Absent, 1=Present
BI15OpModSwiOperating mode switchRead0=Off, 1=On
BI16OpModSwiOperating mode switchRead0=Off, 1=On
BI17OpModSwiOperating mode switchRead0=Off, 1=On
BI18OpModSwiOperating mode switchRead0=Off, 1=On
BV101TmpCmfBtnTemporary comfort buttonCommand0=Inactive, 1=Active
BV102CmfBtnComfort buttonCommand0=Inactive, 1=Active
BV106HuCtl'EnHuCtlEnable humdification controlCommand0=No, 1=Yes
BV107EnDhuCtlEnable dehumidification controlCommand0=No, 1=Yes
BV108EnVntCtlEnable ventilation controlCommand0=No, 1=Yes
BV110EnHCtlEnable heating controlCommand0=No, 1=Yes
BV116EnCCtlEnable cooling controlCommand0=No, 1=Yes
BV111SpFan1SpdSetpoint for single-speed fanCommand0=Off, 1=On
BV118DmpOaEcmStaOutside air damper economizer stateCommand0=Inactive, 1=Active
BV122Fan1SpdManManual single-speed fanCommand0=Off, 1=On
BV134HpuSrcAvlHeat pump source availableCommand0=Off, 1=On
BV128HpuSrcAvlHeat pump source availableCommand0=Off, 1=On
BV147DhumFrsdCmdValDehumidifier free-standing command valueCommand0=Off, 1=On
BV149HumFrsdCmdValHumidifier free-standing command valueCommand0=Off, 1=On
BV103REeiRstReset of room energy efficiency indic.Read0=Inactive, 1=Active
BV104RPscDetRoom presence detectionRead0=Absent, 1=Present
BV105PscDetRsResult of presence detectorRead0=Inactive, 1=Active
BV109VntCtl'VntStaVentilation stateRead0=Off, 1=On
BV112CoolDwnReqCool down requestRead0=Inactive, 1=Active
BV113WarmUpReqWarm-up requestRead0=Inactive, 1=Active
BV114PrFreeCReqPresent free cooling requestRead0=Inactive, 1=Active
BV119DmpOaAvlCOutside air damper available for coolingRead0=No, 1=Yes
BV120DmpOaAvlVntOutside air damper available for vent.Read0=No, 1=Yes
BV121FanAvlVntOutside air damper available for vent.Read0=No, 1=Yes
BV164FilChgFilter changeRead0=No, 1=Yes
BV123CclAvlCCooling coil available for coolingRead0=No, 1=Yes
BV124CclAvlDhuCooling coil available for dehmdf.Read0=No, 1=Yes
BV125CclAvlCCooling coil available for coolingRead0=No, 1=Yes
BV126CclAvlDhuCooling coil available for dehmdf.Read0=No, 1=Yes
BV133HpuFltRsResult of heat pump faultRead0=Normal, 1=Fault
BV135HCclAvlCHeating/cooling coil available for cool.Read0=No, 1=Yes
BV136HCclAvlHHeating/cooling coil available for heat.Read0=No, 1=Yes
BV137HCclAvlDhuHeating/cool.coil available for dehmdf.Read0=No, 1=Yes
BV138HpuSrcDmdHeat pump source demandRead0=No, 1=Yes
BV127HpuFltRsResult of heat pump faultRead0=Normal, 1=Fault
BV129HCclAvlCHeating/cooling coil available for cool.Read0=No, 1=Yes
BV130HCclAvlHHeating/cooling coil available for heat.Read0=No, 1=Yes
BV131HCclAvlDhuHeating/cool.coil available for dehmdf.Read0=No, 1=Yes
BV132HpuSrcDmdHeat pump source demandRead0=No, 1=Yes
BV139DhumAvlDhuDehumidifier available for dehmdf.Read0=No, 1=Yes
BV140HclAvlHHeating coil available for heatingRead0=No, 1=Yes
BV141HclAvlHHeating coil available for heatingRead0=No, 1=Yes
BV142HclAvlHHeating coil available for heatingRead0=No, 1=Yes
BV143HclAvlHHeating coil available for heatingRead0=No, 1=Yes
BV144HclAvlHHeating coil available for heatingRead0=No, 1=Yes
BV145HclAvlHHeating coil available for heatingRead0=No, 1=Yes
BV146HumAvlHuHumidifier available for humidificationRead0=No, 1=Yes
BV148DhumFrsdAvlDhuDehumidifier free-stand.avail.f.dehmdf.Read0=No, 1=Yes
BV150HumFrsdAvlHuHumidifier free-stand.available f.hmdf.Read0=No, 1=Yes
BV156EnLockHclTOaHiOutdoor temp. heat disableRead0=No, 1=Yes
BV157EnLockHclTOaHiOutdoor temp. heat disableRead0=No, 1=Yes
BV158EnLockHclTOaHiOutdoor temp. heat disableRead0=No, 1=Yes
BV154EnLockHpuTOaLoHP compressor lockout on low temp.Read0=No, 1=Yes
BV155EnLockHpuTOaLoHP compressor lockout on low temp.Read0=No, 1=Yes
BV162RvrVlvActvReversing valve energized duringRead0=Cooling, 1=Heating
BV163RvrVlvActvReversing valve energized duringRead0=Cooling, 1=Heating
BV161EnRPscDetRoom presence detectorRead0=Closed, 1=Open
BV160EnFreeCFree coolingRead0=No, 1=Yes
BV159EnHuHOnlyHumidity control in heating onlyRead0=No, 1=Yes
BO12HclEl1StPosHeating coil electric pos.first stageCommand0=Off, 1=On
BO13HclEl1StPosHeating coil electric pos.first stageCommand0=Off, 1=On
BO0HclElPosHeating coil electric positionCommand0=Off, 1=On
BO1HclElPosHeating coil electric positionCommand0=Off, 1=On
BO2DhumCmdDehumidifier commandCommand0=Off, 1=On
BO3HpuRvrVlvHeat pump reversing valveCommand0=Inactive, 1=Active
BO4HpuCmd2StHeat pump command second stageCommand0=Off, 1=On
BO5HpuCmd1StHeat pump command first stageCommand0=Off, 1=On
BO6HpuCmdHeat pump commandCommand0=Off, 1=On
BO7CclDx2StPosCooling coil DX evap.pos.second stageCommand0=Off, 1=On
BO8CclDx1StPosCooling coil DX evap.pos.second stageCommand0=Off, 1=On
BO9CclDxPosCooling coil DX evaporator positionCommand0=Off, 1=On
BO14HclEl2StPosHeating coil electric pos.second stageCommand0=Off, 1=On
BO15HclEl2StPosHeating coil electric pos.second stageCommand0=Off, 1=On
BO10Fan1SpdSingle-speed fanCommand0=Off, 1=On
BO11DmpOaCmdOutside air damper commandCommand0=Off, 1=On
BO26HclEl3StPosHeating coil electric pos.third stageCommand0=Off, 1=On
BO24HclGasCmd1StHeating coil gas command first stageCommand0=Off, 1=On
BO25HclGasCmd1StHeating coil gas command first stageCommand0=Off, 1=On
BO16HclGasCmdHeating coil gas commandCommand0=Off, 1=On
BO17HclGasCmdHeating coil gas commandCommand0=Off, 1=On
BO18HumFrsdCmdHumidifier free-standing commandCommand0=Off, 1=On
BO19DhumFrsdCmdDehumidifier free-standing commandCommand0=Off, 1=On
BO20HumCmdHumidifier commandCommand0=Off, 1=On
BO21HclGasCmd3StHeating coil gas command third stageCommand0=Off, 1=On
BO22HclGasCmd2StHeating coil gas command second stageCommand0=Off, 1=On
BO23HclGasCmd2StHeating coil gas command second stageCommand0=Off, 1=On
MV77REeiEnergy efficiency indication roomCommand1=Undefined, 2=Poor, 3=Satisfactory, 4=Good, 5=Excellent
MVmin75ROpModRoom operating modeCommand1=Protection, 2=Unoccupied, 3=Economy, 4=Comfort
MVmin76OccModOccupancy modeCommand1=Off, 2=Absent, 3=Present
MV73CenOpModCmdvCentral operating mode command valueCommand1=Protection, 2=Unoccupied, 3=Economy, 4=Comfort
MV83HvacPscModHVAC presence modeCommand1=None, 2=Consider present, 3=Consider absent, 4=Cons.present & absent
MV84PltOpModPlant operating modeCommand1=Off, 2=Protection, 3=Economy, 4=Pre-Comfort, 5=Comfort, 6=Warm-up, 7=Cool down, 8=Room low temp.prot., 9=Cond.overflow prot., 10=Free cooling, 11=Night cooling, 12=Ventilation, 13=Equit.temp.prot, 14=Air vol.flow off, 15=Not used, 16=Not used, 17=Not used
MV85NxROpModNext room operating modeCommand1=Protection, 2=Unoccupied, 3=Economy, 4=Comfort
MVmin86PrOpModRsnPresent operating mode and reasonCommand1=Protection, 2=Unoccupied, 3=Economy, 4=Comfort
MV88DmpOaDevModOutside air damper device modeCommand1=Off, 2=Control mode, 3=Fully open, 4=Maximum allowed
MV89FanDevModFan device modeCommand1=Off, 2=Control mode, 3=Maximum speed, 4=Manual speed
MV90CclDevModCooling coil device modeCommand1=Off, 2=Control mode, 3=Fully open
MV91CclDevModCooling coil device modeCommand1=Off, 2=Control mode, 3=Fully open
MV94HCclDevModHeating/cooling coil device modeCommand1=Off, 2=Control mode, 3=Fully open, heating, 4=Fully open, cooling
MV92HCclDevModHeating/cooling coil device modeCommand1=Off, 2=Control mode, 3=Fully open, heating, 4=Fully open, cooling
MV96DhumDevModDehumidifier device modeCommand1=Off, 2=Control mode, 3=Fully open
MV97HclDevModHeating coil device modeCommand1=Off, 2=Control mode, 3=Fully open
MV98HclDevModHeating coil device modeCommand1=Off, 2=Control mode, 3=Fully open
MV99HclDevModHeating coil device modeCommand1=Off, 2=Control mode, 3=Fully open
MV100HclDevModHeating coil device modeCommand1=Off, 2=Control mode, 3=Fully open
MV101HclDevModHeating coil device modeCommand1=Off, 2=Control mode, 3=Fully open
MV102HclDevModHeating coil device modeCommand1=Off, 2=Control mode, 3=Fully open
MV103HumDevModHumidifier device modeCommand1=Off, 2=Control mode, 3=Fully open
MV104DhumFrsdDevModDehumidifier free-standing device modeCommand1=Off, 2=Control mode, 3=Fully open
MV105HumFrsdDevModHumidifier free-standing device modeCommand1=Off, 2=Control mode, 3=Fully open
MV106PrPltOpModPresent plant operating modeCommand1=Off, 2=Protection, 3=Economy, 4=Pre-Comfort, 5=Comfort, 6=Warm-up, 7=Cool down, 8=Room low temp.prot., 9=Cond.overflow prot., 10=Free cooling, 11=Night cooling, 12=Ventilation, 13=Equit.temp.prot, 14=Air vol.flow off, 15=Not used, 16=Not used, 17=Not used
MV74OsscStaOSSC state (optimum start stop control)Read1=Setback, 2=Early start, 3=Late start, 4=Early occupancy, 5=Economy, 6=Comfort, 7=Stop, 8=Lact occupancy
MV78RHvacEeiRoom energy efficiency indication HVACRead1=Undefined, 2=Poor, 3=Satisfactory, 4=Good, 5=Excellent
MV79HuDhuStaHumidification/dehumidification stateRead1=Neither, 2=Humidify, 3=Dehumidify
MVmin80HCStaHeating/cooling stateRead1=Neither, 2=Heating, 3=Cooling
MV87RAQualIndRoom air quality indicationRead1=Undefined, 2=Poor, 3=Okay, 4=Good
MV95HpuStaHeat pump stateRead1=Off, 2=Heating, 3=Cooling
MV93HpuStaHeat pump stateRead1=Off, 2=Heating, 3=Cooling
MV114HclDevTypHeating coil device typeRead1=None, 2=Electric 1-stage, 3=Electric 2-stage, 4=Electric 3-stage, 5=Gas 1-stage, 6=Gas 2-stage, 7=Gas 3-stage
MV115HCclDevTypHeating/cooling coil device typeRead1=None, 2=Heat pump 1-stage, 3=Heat pump 2-stage
MV116CclDevTypCooling coil device typeRead1=None, 2=DX 1-stage, 3=DX 2-stage
MV113HCStaOutHeating/cooling state outputRead1=Neither, 2=Heating, 3=Cooling
MV107HCDmdHeating/cooling state outputRead1=Neither, 2=Heating, 3=Cooling
MV108SenEvlModSensor evaluation modeRead1=Built-in & external, 2=External
MV109OffPrtCnfOff/protection configurationRead1=Off, 2=Protection
PIV41OphHOperating hours heatingminRead
PIV42OphCOperating hours coolingminRead
PIV43OphFilOperating hours filterminRead
PIV40DhumfsTiOffMinDehum. (no fan) min. OFF timemsRead
PIV39DhumfsTiOnMinDehum. (no fan) min. ON timemsRead
PIV38HumfsTiOffMinHumidify (no fan) min. OFF timemsRead
PIV37HumfsTiOnMinHumidify (no fan) min. ON timemsRead
PIV36DhumTiOffMinDehum. (fan) min. OFF timemsRead
PIV35DhumTiOnMinDehum. (fan) min. ON timemsRead
PIV34HumTiOffMinHumidifier (fan) min. OFF timemsRead
PIV33HumTiOnMinHumidifier (fan) min. ON timemsRead
PIV27HclTiOffMinHeating min. OFF timemsRead
PIV28HclTiOffMinHeating min. OFF timemsRead
PIV29HclTiOffMinHeating min. OFF timemsRead
PIV30HclTiOffMinHeating min. OFF timemsRead
PIV31HclTiOffMinHeating min. OFF timemsRead
PIV32HclTiOffMinHeating min. OFF timemsRead
PIV21HclTiOnMinHeating min. ON timemsRead
PIV22HclTiOnMinHeating min. ON timemsRead
PIV23HclTiOnMinHeating min. ON timemsRead
PIV24HclTiOnMinHeating min. ON timemsRead
PIV25HclTiOnMinHeating min. ON timemsRead
PIV26HclTiOnMinHeating min. ON timemsRead
PIV18HpuTiOffMinHP compressor min. OFF timemsRead
PIV20HpuTiOffMinHP compressor min. OFF timemsRead
PIV17HpuTiOnMinHP compressor min. ON timemsRead
PIV19HpuTiOnMinHP compressor min. ON timemsRead
PIV13CclDxTiOnMinCooling min. ON timemsRead
PIV15CclDxTiOnMinCooling min. ON timemsRead
PIV14CclDxTiOffMinCooling min. OFF timemsRead
PIV16CclDxTiOffMinCooling min. OFF timemsRead
PIV12Fan1SpdTiOfMinFan min. OFF timemsRead
PIV11Fan1SpdTiOnMinFan min. OFF timemsRead
PIV8DmpOaTiOffMinDamper min. OFF timemsRead
PIV7DmpOaTiOnMinDamper min. ON timemsRead
PIV3ChovrDlyHCChangeover delay for heating/coolingmsRead
PIV4ChovrDlyHCChangeover delay for heating/coolingmsRead
PIV0HclElFanOvrnElectric heating coil fan overrunmsRead
PIV1HclElFanOvrnElectric heating coil fan overrunmsRead
PIV2HclElFanOvrnElectric heating coil fan overrunmsRead
PIV44FilChgIvlFilter change intervalhRead
Object ID lookup: Siemens RDS120.B 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 RDS120.B Smart Thermostat (BACnet version of RDS120) 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 RDS120.B Smart Thermostat (BACnet version of RDS120)

How many BACnet points does the Siemens RDS120.B Smart Thermostat (BACnet version of RDS120) have?

This list has 380 BACnet objects: 48 analog inputs, 147 analog values, 19 binary inputs, 27 binary outputs, 59 binary values, 39 multi-state values, 41 positive integer values. The exact set on a given unit depends on its firmware, installed options and configuration.

Which Siemens RDS120.B Smart Thermostat (BACnet version of RDS120) BACnet points are writable?

81 of the 380 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. The source has no read/write column, so this is inferred from object type.

Where is the official Siemens RDS120.B Smart Thermostat (BACnet version of RDS120) BACnet documentation?

The source is RDS120, RDS120.B Smart Thermostat Commissioning (A6V11214854_enUS_c), revision 11/23/2021, published free by Siemens at https://sid.siemens.com/api/khub/documents/4VP0OsiS4pKJtpeJJ4LXFw/content.

What are the minimum BACnet points to integrate the Siemens RDS120.B Smart Thermostat (BACnet version of RDS120)?

Start with MV 75 ROpMod (Room operating mode command: 1 = Protection ... 4 = Comfort); AV 176 PrSpHCmf (Comfort heating setpoint, °C); AV 191 SpCCmf (Comfort cooling setpoint, °C); MV 76 OccMod (Occupancy: 1 = Off, 2 = Absent, 3 = Present); MV 86 PrOpModRsn (Present operating mode); AI 0 TRBltn (Built-in room temperature, °C); AV 171 PrSpH (Present heating setpoint, °C); AV 186 PrSpC (Present cooling setpoint, °C); MV 80 HCSta (Heating/cooling state).

How do I check these points on the real RDS120.B Smart Thermostat (BACnet version of RDS120)?

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: RDS120, RDS120.B Smart Thermostat Commissioning · A6V11214854_enUS_c · rev. 11/23/2021. Object names, instances and units are reproduced as published; descriptions are our own.