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Room controller (fan coil / VAV / chilled beam) · BACnet points list

Regin Regio RCX room controller (firmware 2.1) BACnet points list

Updated 6 November 2026

Short answer

Regio RCX is Regin's room controller family with RS485 that runs EXOline, Modbus or BACnet MS/TP. The variable list gives 327 BACnet objects: room measurements and outputs, controller state and mode, setpoints per state, remote (BMS) values for room temperature, CO2, humidity and airflow with enable selectors, manual/auto overrides for every output, raw I/O, alarms and display settings.

This page lists 327 BACnet objects for the Regin Regio RCX room controller (firmware 2.1) — 230 of them writable — with each object’s type, instance number, name, engineering units and access. It is re-typed from Regin’s own free documentation, linked below.

Manufacturer
Regin
Model
Regio RCX room controller (firmware 2.1)
Equipment
Room controller (fan coil / VAV / chilled beam)
Equipment type
VAV boxes & fan coils
BACnet objects
327 (230 writable)
Transport
BACnet MS/TP
Firmware
2.1-1-xx
Also known as
RCX, Regio RCX, RCX-..., RCX 2.1-1-xx, Regin RCX
Source document
RCX-... 2.1-1-xx - Variable list · variables_rcx_2.1-1-xx (Revision A)
Download CSV 327 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 Regin’s current documentation and the live device before use. Not official Regin information. Terms of use.

BMS integration notes: Regin Regio RCX room controller (firmware 2.1)

Integration in brief

Write MV 10051 RC_RemoteControllerState to set the controller state (off/unoccupied/standby/occupied/bypass) from the BMS, and the occupied heating/cooling setpoints (AV 10361 / AV 10391) or AV 10401 setpoint offset. Keep BV 9101 HeartbeatTrigger pulsing. Read MV 10001 RC_ControllerState, MV 10011 RC_ControllerMode, AV 10002 room temperature, AV 10081 active setpoint and BV 10271 sum alarm.

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 10051RC_RemoteControllerStateController state set from the BMSWrite
AV 10361RC_RoomSetpointHeatOccupiedHeating setpoint, occupied, °CWrite
AV 10391RC_RoomSetpointCoolOccupiedCooling setpoint, occupied, °CWrite
BV 9101HeartbeatTriggerWrite 1 periodically to stay in normal modeWrite
MV 10001RC_ControllerStateCurrent controller stateRead
MV 10011RC_ControllerModeCurrent mode: off, heating, coolingRead
AV 10002RC_RoomTempRoom temperature, °CRead
AV 10081RC_RoomActiveSetpointActive room setpoint, °CRead
BV 10271RC_SumAlarmSum alarmRead

Enable & remote start

MV 10051 RC_RemoteControllerState sets the state directly via communication; MV 10041 RC_ControllerStateDefault is the state used when nothing else controls it.

Heartbeat & communication loss

BV 9101 HeartbeatTrigger must be written to 1 periodically to keep normal operation (the controller resets it to 0); MV 9301 RC_OfflineFunction sets what happens when the trigger stops (disabled, output defaults, application). MV 10081 RC_ControllerStateFail sets the controller state during communication faults. No timeout value is given in the list.

Sensors & values from the BMS

Each measured value has a remote copy and an enable BV: write AV 10611 RC_RoomTempRemote and set BV 10321 RC_RoomTempRemoteSelect to use a BMS room temperature; the same pattern covers CO2 (AV 10621 / BV 10331), airflow, changeover temperatures, supply air, humidity, VOC, damper position and the digital inputs.

Network setup

Watch out for

Regin Regio RCX room controller (firmware 2.1) 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.

327 of 327 shown
Type
AnalogBinaryMulti-state
Access
Show
Regin Regio RCX room controller (firmware 2.1) BACnet Points List
DescriptionStates
PIV9011WinkWink for this amount of time in secondsWrite
BV9001CommCommitCommit communication settingsWrite
MV9001Port1ModeCommWrite1=PORT_MODE_INACTIVE, 3=PORT_MODE_EXOLINE_SLAVE, 14=PORT_MODE_BACNET, 16=PORT_MODE_MODBUS_SLAVE, 22=PORT_MODE_EXOLINE_MODBUS_SLAVE
MV9101Port1BaudCommWrite1=UART_BAUD_9600, 3=UART_BAUD_2400, 4=UART_BAUD_1200, 16=UART_BAUD_19k2, 18=UART_BAUD_38k4, 19=UART_BAUD_57k6, 21=UART_BAUD_115k2, 22=UART_BAUD_230k4, 23=UART_BAUD_460k8, 26=UART_BAUD_921k6, 27=UART_BAUD_1M, 28=UART_BAUD_250k
MV9201Port1FormatCommWrite17=UART_FORMAT_8N1, 25=UART_FORMAT_8N2, 49=UART_FORMAT_8E1, 57=UART_FORMAT_8E2, 113=UART_FORMAT_8O1, 121=UART_FORMAT_8O2
BVmin9101HeartbeatTriggerWrite 1 to this register periodically for keep system running in normalWrite
MV9301RC_OfflineFunctionOffline functionWrite1=DISABLED, 2=OUTPUT_DEFAULT, 3=APPLICATION, 4=OUTPUT_DEFAULT_START_OFFLINE
AVmin10002RC_RoomTempRoom temperature°CRead
AV10011RC_CO2LevelRoom CO2 levelppmRead
AV10021RC_AirFlowAir flowRead
AV10031RC_ChangeOverTempChangeover temperature°CRead
AV10041RC_ChangeOverVAVTempChangeover VAV temperature°CRead
AV10051RC_ExtraZoneTempExtra Zone temperature°CRead
AV10061RC_SupplyAirTempSupply air temperature°CRead
AV10071RC_HumidityRelative humidity%RHRead
BV10001RC_PresencePresence indicationRead
BV10011RC_DIPresenceDI Presence indicationRead
BV10021RC_CO2PresenceCO2 Presence indicationRead
BV10031RC_DIOpenWindowOpen window indicationRead
BV10041RC_DIChangeOverChange-over digital inputRead
BV10051RC_DIChangeOverVAVChange-over VAV digital inputRead
BV10061RC_DICondensationCondensation indicationRead
AVmin10081RC_RoomActiveSetpointActive room control setpoint°CRead
AV10091RC_SupplyAirSetpointActive supply air setpoint°CRead
MVmin10001RC_ControllerStateCurrent stateRead1=OFF, 2=UNOCCUPIED, 3=STANDBY, 4=OCCUPIED, 5=BYPASS, 6=UNUSED
MVmin10011RC_ControllerModeCurrent controller modeRead1=OFF, 2=HEATING, 3=COOLING
BV10071RC_ChangeOverStateChange-over statusRead
BV10081RC_ChangeOverStateVAVChange-over VAV statusRead
BV10091RC_ExtraZoneActiveExtra Zone activeRead
AV10101RC_RoomHeat1OutputAORoom control Heat1 output analog%Read
AV10111RC_RoomCool1OutputAORoom control Cool1 output analog%Read
AV10121RC_RoomVAV1OutputAORoom control VAV1 output analog%Read
AV10131RC_RoomHeat2OutputAORoom control Heat2 output analog%Read
AV10141RC_RoomCool2OutputAORoom control Cool2 output analog%Read
AV10151RC_RoomVAV2OutputAORoom control VAV2 output analog%Read
AV10161RC_RoomChangeOverOutputAORoom control Change over output analog%Read
AV10171RC_Room6WayValveOutputAORoom control 6-way valve output analog%Read
AV10181RC_RoomChangeOverVAVOutputAORoom control Change over VAV output analog%Read
AV10191RC_ExtraZoneOutputAOExtra Zone output analog%Read
AV10201RC_ECFanSpeedCurrent EC fan speed%Read
AV10211RC_CO2ControlAOCO2 control analog out%Read
AV10221RC_HumidifyOutputAOHumidify analog out%Read
AV10231RC_DehumidifyOutputAODehumidify analog out%Read
AV10241RC_PIDHeatDemandRoom PID heat output%Read
AV10251RC_PIDCoolDemandRoom PID cool output%Read
BV10101RC_RoomHeat1OutputDORoom control Heat1 output digitalRead
BV10111RC_RoomCool1OutputDORoom control Cool1 output digitalRead
BV10121RC_RoomVAV1OutputDORoom control VAV1 output digitalRead
BV10131RC_RoomHeat2OutputDORoom control Heat2 output digitalRead
BV10141RC_RoomCool2OutputDORoom control Cool2 output digitalRead
BV10151RC_RoomVAV2OutputDORoom control VAV2 output digitalRead
BV10161RC_RoomChangeOverOutputDORoom control Change over output digitalRead
BV10171RC_Room6WayValveOutputDORoom control 6-way valve output digitalRead
BV10181RC_RoomChangeOverVAVOutputDORoom control Change over VAV output digitalRead
BV10191RC_ExtraZoneOutputDOExtra Zone output digitalRead
BV10201RC_CO2ControlDOCO2 control digital outRead
BV10211RC_HumidifyOutputDOHumidify digital outRead
BV10221RC_DehumidifyOutputDODehumidify digital outRead
BV10231RC_ForcedVentDOForced ventilation outputRead
BV10241RC_AlarmRoomTempHighHigh room temp alarmRead
BV10251RC_AlarmRoomTempLowLow room temp alarmRead
BV10261RC_AlarmCO2HighHigh CO2 alarmRead
AV10261RC_DamperPositionDamper positionRead
AV10271RC_ExtractTemperatureExtract temperature°CRead
AV10281RC_VOCVOC indexRead
AV10291RC_DisplayViewValueValue to be shown in the displayRead
AV10301RC_DisplaySetpointValueSetpoint display at setpoint adjustmentRead
MV10021RC_CO2IndicatorRGB CO2 indicationRead1=OFF, 2=GREEN, 3=YELLOW, 4=RED
BVmin10271RC_SumAlarmSum AlarmRead
AV10311RC_CO2LevelRoundedRounded room CO2 levelppmRead
AV10321RC_VOCControlAOVOC control analog out%Read
BV10281RC_VOCControlDOVOC control digital outRead
BV10291RC_AlarmSensorErrorSensor error alarmRead
BV10301RC_AlarmDIDigital input alarmRead
BV10311RC_AlarmManualOutputAlarm when an output is set to manualRead
MV10422RC_ChangeOverSelectType of detection to control change-overWrite1=MAN_HEAT, 2=MAN_COOL, 3=DIG_IN, 4=ANA_IN_SMPL, 5=ANA_IN_ADV
MV10423RC_ChangeOverVAVSelectType of detection to control change-over VAVWrite1=MAN_HEAT, 2=MAN_COOL, 3=DIG_IN, 4=ANA_IN_SMPL, 5=ANA_IN_ADV
AV10331RC_RoomSetpointHeatOffHeating setpoint in Off state (frost protection)°CWrite
AV10341RC_RoomSetpointHeatUnoccupiedHeating setpoint in Unoccupied state°CWrite
AV10351RC_RoomSetpointHeatStandbyHeating setpoint in Standby state°CWrite
AVmin10361RC_RoomSetpointHeatOccupiedHeating setpoint in Occupied state°CWrite
AV10371RC_RoomSetpointCoolUnoccupiedCooling setpoint in Unoccupied state°CWrite
AV10381RC_RoomSetpointCoolStandbyCooling setpoint in Standby state°CWrite
AVmin10391RC_RoomSetpointCoolOccupiedCooling setpoint in Occupied state°CWrite
AV10401RC_RoomSetpointOffsetSetpoint offset°CWrite
AV10411RC_RoomSetpointOffsetMaxPosMaximum positive setpoint offset°CWrite
AV10421RC_RoomSetpointOffsetMaxNegMaximum negative setpoint offset°CWrite
AV10431RC_RoomPIDPbandP-band for room PID controller°CWrite
AV10441RC_RoomPIDItimeI-time for room PID controllersWrite
AV10451RC_ExtraZoneSetpointSetpoint for Extra Zone°CWrite
AV10461RC_ExtraZonePIDPbandP-band for Extra Zone PID controller°CWrite
AV10471RC_ExtraZonePIDItimeI-time for Extra Zone PID controllersWrite
AV10481RC_CO2SetpointSetpoint for CO2 controlppmWrite
AV10491RC_CO2PIDPbandP-band for CO2 PID controllerppmWrite
AV10501RC_CO2PIDItimeI-time for CO2 PID controllersWrite
AV10511RC_HumiditySetpointSetpoint Humidity control%RHWrite
AV10521RC_HumidityPIDPbandP-band for Humidity PID controller%RHWrite
AV10531RC_HumidityPIDItimeI-time for Humidity PID controllersWrite
AV10541RC_SupplyAirCascadeFactorConversion factor for cascade PI parametersWrite
AV10551RC_SupplyAirHeatMaxMax supply air temperature when heating°CWrite
AV10561RC_SupplyAirHeatMinMin supply air temperature when heating°CWrite
AV10571RC_SupplyAirCoolMaxMax supply air temperature when cooling°CWrite
AV10581RC_SupplyAirCoolMinMin supply air temperature when cooling°CWrite
AV10591RC_SupplyAirFrostProtectMin supply air temperature in frost protect°CWrite
MV10031RC_FanSelectFan speed settingRead1=OFF, 2=SPEED1, 3=SPEED2, 4=SPEED3, 5=AUTO
MV10041RC_ControllerStateDefaultThe default state when nothing else is controlling the stateWrite1=OFF, 2=UNOCCUPIED, 3=STANDBY, 4=OCCUPIED, 5=BYPASS, 6=UNUSED
MVmin10051RC_RemoteControllerStateSets the state directly via communicationWrite1=OFF, 2=UNOCCUPIED, 3=STANDBY, 4=OCCUPIED, 5=BYPASS, 6=UNUSED
MV10061RC_ControllerStatePresenceThe state to enter when presence is detectedWrite1=OFF, 2=UNOCCUPIED, 3=STANDBY, 4=OCCUPIED, 5=BYPASS, 6=UNUSED
MV10071RC_ControllerStateShutdownState used when shutdown mode is setWrite1=OFF, 2=UNOCCUPIED, 3=STANDBY, 4=OCCUPIED, 5=BYPASS, 6=UNUSED
MV10081RC_ControllerStateFailState to set during communication faultsWrite1=OFF, 2=UNOCCUPIED, 3=STANDBY, 4=OCCUPIED, 5=BYPASS, 6=UNUSED
AV10601RC_BypassTimeBypass time (minutes)minWrite
AV10611RC_RoomTempRemoteRemote setting of room temperature°CWrite
AV10621RC_CO2LevelRemoteRemote setting of room CO2 levelppmWrite
AV10631RC_AirFlowRemoteRemote setting of air flowl/sWrite
AV10641RC_ChangeOverTempRemoteRemote setting of changeover temperature°CWrite
AV10651RC_ChangeOverVAVTempRemoteRemote setting of changeover VAV temperature°CWrite
AV10661RC_ExtraZoneTempRemoteRemote setting of extra zone temperature°CWrite
AV10671RC_SupplyAirTempRemoteRemote setting of supply air temperature°CWrite
AV10681RC_HumidityRemoteRemote setting of relative humidity%RHWrite
AV10691RC_VOCRemoteRemote setting of VOC indexWrite
BV10321RC_RoomTempRemoteSelectEnable remote setting of room temperatureWrite
BV10331RC_CO2LevelRemoteSelectEnable remote setting of room CO2 levelWrite
BV10341RC_AirFlowRemoteSelectEnable remote setting of air flowWrite
BV10351RC_ChangeOverTempRemoteSelectEnable remote setting of changeover temperatureWrite
BV10361RC_ChangeOverVAVTempRemoteSelectEnable remote setting of changeover VAV temperatureWrite
BV10371RC_ExtraZoneTempRemoteSelectEnable remote setting of extra zone temperatureWrite
BV10381RC_SupplyAirTempRemoteSelectEnable remote setting of supply air temperatureWrite
BV10391RC_HumidityRemoteSelectEnable remote setting of relative humidityWrite
BV10401RC_VOCRemoteSelectEnable remote setting of VOC indexWrite
BV10411RC_DIPresenceRemoteRemote setting of presence digital inputWrite
BV10421RC_DIOpenWindowRemoteRemote setting of window contact digital inputWrite
BV10431RC_DIChangeoverRemoteRemote setting of change over digital inputWrite
BV10441RC_DIChangeoverVAVRemoteRemote setting of change over VAV digital inputWrite
BV10451RC_DICondensationRemoteRemote setting of condensation digital inputWrite
AV10701RC_RoomHeat1OutputManualManual setting of RoomHeat1Output%Write
AV10711RC_RoomCool1OutputManualManual setting of RoomCool1Output%Write
AV10721RC_RoomVAV1OutputManualManual setting of RoomVAV1Output%Write
AV10731RC_RoomHeat2OutputManualManual setting of RoomHeat2Output%Write
AV10741RC_RoomCool2OutputManualManual setting of RoomCool2Output%Write
AV10751RC_RoomVAV2OutputManualManual setting of RoomVAV2Output%Write
AV10761RC_RoomChangeOverOutputManualManual setting of RoomChangeOverOutput%Write
AV10771RC_Room6WayValveOutputManualManual setting of Room6WayValveOutput%Write
AV10781RC_RoomChangeOverVAVOutputManualManual setting of RoomChangeOverVAVOutput%Write
AV10791RC_ExtraZoneOutputManualManual setting of ExtraZoneOutput%Write
AV10801RC_ECFanSpeedManualManual setting of ECFanSpeedWrite
AV10811RC_CO2ControlManualManual setting of CO2Control%Write
AV10821RC_HumidifyOutputManualManual setting of HumidifyOutputWrite
AV10831RC_DehumidifyOutputManualManual setting of DehumidifyOutput%Write
MV10091RC_RoomHeat1OutputManSelectManual/auto select for RoomHeat1OutputWrite1=OFF, 2=MANUAL, 3=AUTO
MV10101RC_RoomCool1OutputManSelectManual/auto select for RoomCool1OutputWrite1=OFF, 2=MANUAL, 3=AUTO
MV10111RC_RoomVAV1OutputManSelectManual/auto select for RoomVAV1OutputWrite1=OFF, 2=MANUAL, 3=AUTO
MV10121RC_RoomHeat2OutputManSelectManual/auto select for RoomHeat2OutputWrite1=OFF, 2=MANUAL, 3=AUTO
MV10131RC_RoomCool2OutputManSelectManual/auto select for RoomCool2OutputWrite1=OFF, 2=MANUAL, 3=AUTO
MV10141RC_RoomVAV2OutputManSelectManual/auto select for RoomVAV2OutputWrite1=OFF, 2=MANUAL, 3=AUTO
MV10151RC_Room6WayValveOutputManSelectManual/auto select for Room6WayValveOutputWrite1=OFF, 2=MANUAL, 3=AUTO
MV10161RC_RoomChangeOverVAVOutputManSelectManual/auto select for RoomChangeOverVAVOutputWrite1=OFF, 2=MANUAL, 3=AUTO
MV10171RC_ExtraZoneOutputManSelectManual/auto select for ExtraZoneOutputWrite1=OFF, 2=MANUAL, 3=AUTO
MV10181RC_ECFanSpeedManSelectManual/auto select for ECFanSpeedWrite1=OFF, 2=MANUAL, 3=AUTO
MV10191RC_CO2ControlManSelectManual/auto select for CO2ControlWrite1=OFF, 2=MANUAL, 3=AUTO
MV10201RC_HumidifyOutputManSelectManual/auto select for HumidifyOutputWrite1=OFF, 2=MANUAL, 3=AUTO
MV10211RC_DehumidifyOutputManSelectManual/auto select for DehumidifyOutputWrite1=OFF, 2=MANUAL, 3=AUTO
AV10841RC_AlarmRoomTempLimitHighHigh room temp alarm limit°CWrite
AV10851RC_AlarmRoomTempLimitLowLow room temp alarm limit°CWrite
AV10861RC_AlarmCO2LimitHighHigh CO2 alarm limitppmWrite
AV10871RC_DamperPositionRemoteRemote setting of damper positionWrite
AV10881RC_ExtractTemperaureRemoteRemote setting of extract temperature°CWrite
BV10461RC_DamperPositionRemoteSelectEnable remote setting of damper positionWrite
BV10471RC_ExtractTemperaureRemoteSelectEnable remote setting of extract temperatureWrite
BV10481RC_DIPresenceRemoteSelectEnable remote setting of presence digital inputWrite
BV10491RC_DIOpenWindowRemoteSelectEnable remote setting of window contact digital inputWrite
BV10501RC_DIChangeoverRemoteSelectEnable remote setting of change over digital inputWrite
BV10511RC_DIChangeoverVAVRemoteSelectEnable remote setting of change over VAV digital inputWrite
BV10521RC_DICondensationRemoteSelectEnable remote setting of condensation digital inputWrite
MV10221RC_DisplayViewModeSelect value to be shown in the displayWrite1=ACTUAL, 2=HEAT_SETP, 3=COOL_SETP, 4=HEAT_COOL_AVG, 5=OFFSET, 6=CO2, 7=HEAT_OFFS, 8=COOL_OFFS, 9=AVG_OFFS, 10=CALC_FLOW, 11=ACTIVE_OFFS
MV10231RC_DisplaySetpointModeSelect setpoint display at setpoint adjustmentWrite1=OFFSET, 2=ACTIVE_OFFS, 3=HEAT_OFFS, 4=COOL_OFFS, 5=HEAT_OCC_OFFS, 6=COOL_OCC_OFFS, 7=AVG_OFFS
MV10241RC_RoomHeat1OutputManSelectDOManual/auto select Heat1 output digitalWrite1=OFF, 2=MANUAL, 3=AUTO
MV10251RC_RoomCool1OutputManSelectDOManual/auto select Cool1 output digitalWrite1=OFF, 2=MANUAL, 3=AUTO
MV10261RC_RoomVAV1OutputManSelectDOManual/auto select VAV1 output digitalWrite1=OFF, 2=MANUAL, 3=AUTO
MV10271RC_RoomHeat2OutputManSelectDOManual/auto select Heat2 output digitalWrite1=OFF, 2=MANUAL, 3=AUTO
MV10281RC_RoomCool2OutputManSelectDOManual/auto select Cool2 output digitalWrite1=OFF, 2=MANUAL, 3=AUTO
MV10291RC_RoomVAV2OutputManSelectDOManual/auto select VAV2 output digitalWrite1=OFF, 2=MANUAL, 3=AUTO
MV10301RC_RoomChangeOverOutputManSelectDOManual/auto select Change over output digitalWrite1=OFF, 2=MANUAL, 3=AUTO
MV10311RC_Room6WayValveOutputManSelectDOManual/auto select 6-way valve output digitalWrite1=OFF, 2=MANUAL, 3=AUTO
MV10321RC_RoomChangeOverVAVOutputManSelectDOManual/auto select Change over VAV output digitalWrite1=OFF, 2=MANUAL, 3=AUTO
MV10331RC_ExtraZoneOutputManSelectDOManual/auto select Extra Zone output digitalWrite1=OFF, 2=MANUAL, 3=AUTO
MV10341RC_CO2ControlManSelectDOManual/auto select CO2 control digital outWrite1=OFF, 2=MANUAL, 3=AUTO
MV10351RC_HumidifyOutputManSelectDOManual/auto select Humidify digital outWrite1=OFF, 2=MANUAL, 3=AUTO
MV10361RC_DehumidifyOutputManSelectDOManual/auto select Dehumidify digital outWrite1=OFF, 2=MANUAL, 3=AUTO
MV10371RC_ForcedVentilationManSelectDOManual/auto select Forced Ventilation digital outWrite1=OFF, 2=MANUAL, 3=AUTO
MV10381RC_SumAlarmManSelectDOManual/auto select Sum AlarmWrite1=OFF, 2=MANUAL, 3=AUTO
MV10391RC_ExtraZoneActiveManSelectDOManual/auto select Extra Zone active digital outWrite1=OFF, 2=MANUAL, 3=AUTO
AV10891RC_CO2LevelYellowCO2 level for yellow ledppmWrite
AV10901RC_CO2LevelRedCO2 level for red ledppmWrite
AV10911RC_VOCSetpointSetpoint for VOC controlWrite
AV10921RC_VOCPIDPbandP-band for VOC PID controllerWrite
AV10931RC_VOCPIDItimeI-time for VOC PID controllersWrite
AV10941RC_VOCControlManualManual setting of VOCControl%Write
MV10401RC_VOCControlManSelectManual/auto select for VOCControlWrite1=OFF, 2=MANUAL, 3=AUTO
MV10411RC_VOCControlManSelectDOManual/auto select VOC control digital outWrite1=OFF, 2=MANUAL, 3=AUTO
MV10421RC_ControllerStateWindowThe state to enter when the window is openedWrite1=OFF, 2=UNOCCUPIED, 3=STANDBY, 4=OCCUPIED, 5=BYPASS, 6=UNUSED
AV1001IoAnaIn_1_valueFiltered value from sensorRead
AV1101IoAnaIn_1_overrideOverride valueWrite
BV1001IoAnaIn_1_override_enSet to 1 to enable overrideWrite
AV1002IoAnaIn_2_valueFiltered value from sensorRead
AV1102IoAnaIn_2_overrideOverride valueWrite
BV1002IoAnaIn_2_override_enSet to 1 to enable overrideWrite
AV1003IoAnaIn_3_valueFiltered value from sensorRead
AV1103IoAnaIn_3_overrideOverride valueWrite
BV1003IoAnaIn_3_override_enSet to 1 to enable overrideWrite
AV1004IoAnaIn_4_valueFiltered value from sensorRead
AV1104IoAnaIn_4_overrideOverride valueWrite
BV1004IoAnaIn_4_override_enSet to 1 to enable overrideWrite
AV1005IoAnaIn_5_valueRoom temperature from internal sensorRead
AV1105IoAnaIn_5_overrideOverride valueWrite
BV1005IoAnaIn_5_override_enSet to 1 to enable overrideWrite
AV1006IoAnaIn_6_valueRoom humidity from internal sensorRead
AV1106IoAnaIn_6_overrideOverride valueWrite
BV1006IoAnaIn_6_override_enSet to 1 to enable overrideWrite
AV1007IoAnaIn_7_valueRoom VOC from internal sensorRead
AV1107IoAnaIn_7_overrideOverride valueWrite
BV1007IoAnaIn_7_override_enSet to 1 to enable overrideWrite
AV1008IoAnaIn_8_valueRoom CO2 from internal sensorRead
AV1108IoAnaIn_8_overrideOverride valueWrite
BV1008IoAnaIn_8_override_enSet to 1 to enable overrideWrite
AV1009IoAnaIn_9_valueFiltered value from sensorRead
AV1109IoAnaIn_9_overrideOverride valueWrite
BV1009IoAnaIn_9_override_enSet to 1 to enable overrideWrite
AV1010IoAnaIn_10_valueFiltered value from sensorRead
AV1110IoAnaIn_10_overrideOverride valueWrite
BV1010IoAnaIn_10_override_enSet to 1 to enable overrideWrite
AV1011IoAnaIn_11_valueFiltered value from sensorRead
AV1111IoAnaIn_11_overrideOverride valueWrite
BV1011IoAnaIn_11_override_enSet to 1 to enable overrideWrite
BV1101IoDiIn_1_valueFiltered value from sensorRead
PIV10000IoDiIn_1_pulse1Pulse counter 1Read
PIV10002IoDiIn_1_pulse2Pulse counter 2Read
AV10000IoDiIn_1_pulseratePulse rate in HzHzRead
BV1201IoDiIn_1_overrideOverride valueWrite
BV1301IoDiIn_1_override_enSet to 1 to enable overrideWrite
BV1102IoDiIn_2_valueFiltered value from sensorRead
PIV10001IoDiIn_2_pulse1Pulse counter 1Read
PIV10003IoDiIn_2_pulse2Pulse counter 2Read
AV10001IoDiIn_2_pulseratePulse rate in HzHzRead
BV1202IoDiIn_2_overrideOverride valueWrite
BV1302IoDiIn_2_override_enSet to 1 to enable overrideWrite
BV1103IoDiIn_3_valueFiltered value from sensorRead
BV1203IoDiIn_3_overrideOverride valueWrite
BV1303IoDiIn_3_override_enSet to 1 to enable overrideWrite
BV1104IoDiIn_4_valueFiltered value from sensorRead
BV1204IoDiIn_4_overrideOverride valueWrite
BV1304IoDiIn_4_override_enSet to 1 to enable overrideWrite
AV1201IoAnaOut_1_valueValue in % set for output%Write
AV1301IoAnaOut_1_defaultDefault value if communication is lost%Write
AV1401IoAnaOut_1_convertedActual value on the output pin in Volt or milliampereVRead
AV1501IoAnaOut_1_overrideOverride value%Write
BV1401IoAnaOut_1_override_enSet to 1 to enable overrideWrite
AV1202IoAnaOut_2_valueValue in % set for output%Write
AV1302IoAnaOut_2_defaultDefault value if communication is lost%Write
AV1402IoAnaOut_2_convertedActual value on the output pin in Volt or milliampereVRead
AV1502IoAnaOut_2_overrideOverride value%Write
BV1402IoAnaOut_2_override_enSet to 1 to enable overrideWrite
AV1203IoAnaOut_3_valueValue in % set for output%Write
AV1303IoAnaOut_3_defaultDefault value if communication is lost%Write
AV1403IoAnaOut_3_convertedActual value on the output pin in Volt or milliampereVRead
AV1503IoAnaOut_3_overrideOverride value%Write
BV1403IoAnaOut_3_override_enSet to 1 to enable overrideWrite
AV1204IoAnaOut_4_valueValue in % set for output%Write
AV1304IoAnaOut_4_defaultDefault value if communication is lost%Write
AV1404IoAnaOut_4_convertedActual value on the output pin in Volt or milliampereVRead
AV1504IoAnaOut_4_overrideOverride value%Write
BV1404IoAnaOut_4_override_enSet to 1 to enable overrideWrite
BV1501IoDo_1_valueValue set for outputWrite
BV1601IoDo_1_defaultDefault value if communication is lostWrite
BV1701IoDo_1_overrideOverride valueWrite
BV1801IoDo_1_override_enSet to 1 to enable overrideWrite
BV1901IoDo_1_outCurrent value of outputRead
BV1502IoDo_2_valueValue set for outputWrite
BV1602IoDo_2_defaultDefault value if communication is lostWrite
BV1702IoDo_2_overrideOverride valueWrite
BV1802IoDo_2_override_enSet to 1 to enable overrideWrite
BV1902IoDo_2_outCurrent value of outputRead
BV1503Relay_stateValue set for outputWrite
BV1603IoDo_3_defaultDefault value if communication is lostWrite
BV1703IoDo_3_overrideOverride valueWrite
BV1803IoDo_3_override_enSet to 1 to enable overrideWrite
BV1903IoDo_3_outCurrent value of outputRead
AV8001Disp_BrightnessFullDisplay brightness, full (%)%Write
AV8011Disp_BrightnessDimDisplay brightness, dimmed (%)%Write
AV8021Disp_TimeFullDisplay time in full modesWrite
AV8031Disp_TimeDimDisplay time in dimmed modesWrite
MV11000rt_text_fontWhat font to use for the display textWrite
MV11001rt_text_modeSingle or dual row text in displayWrite
MV11002rt_text_display_scroll_modeScroll modeWrite1=SCROLL_WRAP, 2=SCROLL_BOUNCE, 3=SCROLL_WRAP_SYNC, 4=SCROLL_BOUNCE_SYNC
AV11007rt_text_display_scroll_speedTime in ms between scrolling one pixelmsWrite
MV11003rt_text_visabilityWhen to show the custom textWrite
AV11008rt_text_timeleftTime to show the custom textsWrite
CSV11000rt_text_row_1String to show on row 1 in the displayWrite
CSV11001rt_text_row_2String to show on row 2 in the displayWrite
MV11004rt_fb_visabilityWhen to show the custom frame bufferWrite
AV11009rt_fb_timeleftTime to show the custom frame buffersWrite
AV11010rt_fb_row0Frame buffer data for row 0 on the displaysWrite
AV11011rt_fb_row1Frame buffer data for row 1 on the displaysWrite
AV11012rt_fb_row2Frame buffer data for row 2 on the displaysWrite
AV11013rt_fb_row3Frame buffer data for row 3 on the displaysWrite
AV11014rt_fb_row4Frame buffer data for row 4 on the displaysWrite
AV11015rt_fb_row5Frame buffer data for row 5 on the displaysWrite
AV11016rt_fb_row6Frame buffer data for row 6 on the displaysWrite
AV11017rt_fb_row7Frame buffer data for row 7 on the displaysWrite
AV11018rt_fb_row8Frame buffer data for row 8 on the displaysWrite
AV11019rt_fb_row9Frame buffer data for row 9 on the displaysWrite
AV11020rt_fb_row10Frame buffer data for row 10 on the displaysWrite
AV8040CM1CurrentAltCurrent alternative for Custom Menu 1Write
AV8041CM1CurrentValueCurrent value for Custom Menu 1Write
AV8042CM2CurrentAltCurrent alternative for Custom Menu 2Write
AV8043CM2CurrentValueCurrent value for Custom Menu 2Write
AV8044CM3CurrentAltCurrent alternative for Custom Menu 3Write
AV8045CM3CurrentValueCurrent value for Custom Menu 3Write
AV8046CM4CurrentAltCurrent alternative for Custom Menu 4Write
AV8047CM4CurrentValueCurrent value for Custom Menu 4Write
AV8048CM5CurrentAltCurrent alternative for Custom Menu 5Write
AV8049CM5CurrentValueCurrent value for Custom Menu 5Write
AV8050CM6CurrentAltCurrent alternative for Custom Menu 6Write
AV8051CM6CurrentValueCurrent value for Custom Menu 6Write
AV8052CM7CurrentAltCurrent alternative for Custom Menu 7Write
AV8053CM7CurrentValueCurrent value for Custom Menu 7Write
AV8054CM8CurrentAltCurrent alternative for Custom Menu 8Write
AV8055CM8CurrentValueCurrent value for Custom Menu 8Write
Object ID lookup: Regin Regio RCX room controller 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 Regio RCX room controller (firmware 2.1) 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 Regin Regio RCX room controller (firmware 2.1)

How many BACnet points does the Regin Regio RCX room controller (firmware 2.1) have?

This list has 327 BACnet objects: 169 analog values, 97 binary values, 54 multi-state values, 2 characterstring values, 5 positive integer values. The exact set on a given unit depends on its firmware, installed options and configuration.

Which Regin Regio RCX room controller (firmware 2.1) BACnet points are writable?

230 of the 327 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 Regin Regio RCX room controller (firmware 2.1) BACnet documentation?

The source is RCX-... 2.1-1-xx - Variable list (variables_rcx_2.1-1-xx (Revision A)), published free by Regin at https://www.regincontrols.com/globalassets/pimmediafiles/documents/variables_rcx_2.1-1-xx.xlsx.

What are the minimum BACnet points to integrate the Regin Regio RCX room controller (firmware 2.1)?

Start with MV 10051 RC_RemoteControllerState (Controller state set from the BMS); AV 10361 RC_RoomSetpointHeatOccupied (Heating setpoint, occupied, °C); AV 10391 RC_RoomSetpointCoolOccupied (Cooling setpoint, occupied, °C); BV 9101 HeartbeatTrigger (Write 1 periodically to stay in normal mode); MV 10001 RC_ControllerState (Current controller state); MV 10011 RC_ControllerMode (Current mode: off, heating, cooling); AV 10002 RC_RoomTemp (Room temperature, °C); AV 10081 RC_RoomActiveSetpoint (Active room setpoint, °C); BV 10271 RC_SumAlarm (Sum alarm).

How do I enable BMS control of the Regin Regio RCX room controller (firmware 2.1)?

MV 10051 RC_RemoteControllerState sets the state directly via communication; MV 10041 RC_ControllerStateDefault is the state used when nothing else controls it.

Does the Regin Regio RCX room controller (firmware 2.1) need a BACnet heartbeat or have a communication timeout?

BV 9101 HeartbeatTrigger must be written to 1 periodically to keep normal operation (the controller resets it to 0); MV 9301 RC_OfflineFunction sets what happens when the trigger stops (disabled, output defaults, application). MV 10081 RC_ControllerStateFail sets the controller state during communication faults. No timeout value is given in the list.

Can the BMS supply sensor values to the Regin Regio RCX room controller (firmware 2.1)?

Each measured value has a remote copy and an enable BV: write AV 10611 RC_RoomTempRemote and set BV 10321 RC_RoomTempRemoteSelect to use a BMS room temperature; the same pattern covers CO2 (AV 10621 / BV 10331), airflow, changeover temperatures, supply air, humidity, VOC, damper position and the digital inputs.

How do I check these points on the real Regio RCX room controller (firmware 2.1)?

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 Regin BACnet points lists

Source: RCX-... 2.1-1-xx - Variable list · variables_rcx_2.1-1-xx (Revision A). Object names, instances and units are reproduced as published; descriptions are our own.