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Room sensor / transmitter · BACnet points list

Regin Regio RTX room transmitter (firmware 2.0) BACnet points list

Updated 7 November 2026

Short answer

Regio RTX is a communicating room transmitter in the Regio family, connected over RS485 with EXOline, Modbus or BACnet MS/TP. The variable list gives 119 BACnet objects: room temperature, CO2, humidity, VOC and presence readings, remote values with enable selectors, per-channel analog/digital input values and overrides, analog outputs with comm-loss defaults, display settings, an extension timer and two custom text rows.

This page lists 119 BACnet objects for the Regin Regio RTX room transmitter (firmware 2.0) — 80 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 RTX room transmitter (firmware 2.0)
Equipment
Room sensor / transmitter
Equipment type
Thermostats, sensors & meters
BACnet objects
119 (80 writable)
Transport
BACnet MS/TP
Firmware
RTX-2.0-1-02
Also known as
RTX, Regio RTX, RTX-2.0-1-02, Regin RTX
Source document
RTX-2.0-1-02 - Variable list · variables_rtx (Revision A)
Download CSV 119 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 RTX room transmitter (firmware 2.0)

Integration in brief

Read AV 10002 room temperature, AV 10011 CO2, AV 10071 humidity, AV 10281 VOC index and BV 10001 presence. Keep BV 9101 RC_OfflineTrigger pulsing if the offline function is used. Values from the BMS can replace the local sensors through the …Remote AVs and their …RemoteSelect BVs.

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
BV 9101RC_OfflineTriggerWrite 1 periodically to stay in normal modeWrite
AV 10002RC_RoomTempRoom temperature, °CRead
AV 10011RC_CO2LevelRoom CO2, ppmRead
AV 10071RC_HumidityRoom relative humidityRead
AV 10281RC_VOCVOC indexRead
BV 10001RC_PresencePresence indicationRead

Heartbeat & communication loss

BV 9101 RC_OfflineTrigger must be written to 1 periodically (the application sets it back to 0) within RC_OfflineTimeout, default 10 s (that timeout is not a BACnet object). MV 9301 RC_OfflineFunction sets the offline reaction. Analog outputs fall back to their IoAnaOut_n_default AV when communication is lost.

Sensors & values from the BMS

AV 10611 / 10621 / 10681 / 10691 take remote room temperature, CO2, humidity and VOC values, each enabled by its …RemoteSelect BV (10321 / 10331 / 10391 / 10401). BV 10411 with BV 10481 does the same for the presence input.

Network setup

Watch out for

Regin Regio RTX room transmitter (firmware 2.0) 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.

119 of 119 shown
Type
AnalogBinaryMulti-state
Access
Show
Regin Regio RTX room transmitter (firmware 2.0) BACnet Points List
DescriptionStates
PIV9011rc_winkWink for this amount of time in secondsWrite
BV9001RC_CommSettingsCommitCommit communication settingsWrite
MV9001RC_Port1ModeComm. protocol Port 1 (RS485)Write
MV9101RC_Port1BaudComm. speed Port 1 (RS485)Write
MV9201RC_Port1FormatComm. format Port 1 (RS485)Write
BVmin9101RC_OfflineTriggerWrite 1 periodically to stay in normal mode; app resets it to 0Write
MV9301RC_OfflineFunctionOffline functionWrite
AVmin10002RC_RoomTempRoom temperature°CRead
AVmin10011RC_CO2LevelRoom CO2 levelppmRead
AVmin10071RC_HumidityRelative humidity%RHRead
BVmin10001RC_PresencePresence indicationRead
BV10011RC_DIPresenceDI Presence indicationRead
BV10021RC_CO2PresenceCO2 Presence indicationRead
AVmin10281RC_VOCVOC indexRead
MV10021RC_CO2IndicatorRGB CO2 indicationRead
AV10311RC_CO2LevelRoundedRounded room CO2 levelppmRead
AV10611RC_RoomTempRemoteRemote setting of room temperature°CWrite
AV10621RC_CO2LevelRemoteRemote setting of room CO2 levelppmWrite
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
BV10391RC_HumidityRemoteSelectEnable remote setting of relative humidityWrite
BV10401RC_VOCRemoteSelectEnable remote setting of VOC indexWrite
BV10411RC_DIPresenceRemoteRemote setting of presence digital inputWrite
BV10481RC_DIPresenceRemoteSelectEnable remote setting of presence digital inputWrite
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_valueFiltered value from sensorRead
AV1105IoAnaIn_5_overrideOverride valueWrite
BV1005IoAnaIn_5_override_enSet to 1 to enable overrideWrite
AV1006IoAnaIn_6_valueFiltered value from sensorRead
AV1106IoAnaIn_6_overrideOverride valueWrite
BV1006IoAnaIn_6_override_enSet to 1 to enable overrideWrite
AV1007IoAnaIn_7_valueFiltered value from sensorRead
AV1107IoAnaIn_7_overrideOverride valueWrite
BV1007IoAnaIn_7_override_enSet to 1 to enable overrideWrite
AV1008IoAnaIn_8_valueFiltered value from 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
AV8001Disp_BrightnessFullDisplay brightness, full (%)%Write
AV8011Disp_BrightnessDimDisplay brightness, dimmed (%)%Write
AV8021Disp_TimeFullDisplay time in full mode. 0 = Never dimsWrite
AV8031Disp_TimeDimDisplay time in dimmed mode. 0 = Never offsWrite
AV11000rt_exttime_step_sizeStep size in minutes for each button pressminWrite
AV11001rt_exttime_stepsNumber of steps before cycling back to offWrite
AV11002rt_exttime_timeleftTime remainingminWrite
BV11000rt_exttime_stateCurrent timer stateRead
AV11003out_ch_1This is the calculated value for this outputRead
BV11001out_ch_1_enableEnable the output mappingWrite
AV11004out_ch_2This is the calculated value for this outputRead
BV11002out_ch_2_enableEnable the output mappingWrite
AV11005out_ch_3This is the calculated value for this outputRead
BV11003out_ch_3_enableEnable the output mappingWrite
AV11006out_ch_4This is the calculated value for this outputRead
BV11004out_ch_4_enableEnable the output mappingWrite
MV11002rt_text_display_scroll_modeScroll modeWrite
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
Object ID lookup: Regin Regio RTX room transmitter 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 RTX room transmitter (firmware 2.0) 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 RTX room transmitter (firmware 2.0)

How many BACnet points does the Regin Regio RTX room transmitter (firmware 2.0) have?

This list has 119 BACnet objects: 62 analog values, 43 binary values, 7 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 RTX room transmitter (firmware 2.0) BACnet points are writable?

80 of the 119 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 RTX room transmitter (firmware 2.0) BACnet documentation?

The source is RTX-2.0-1-02 - Variable list (variables_rtx (Revision A)), published free by Regin at https://www.regincontrols.com/globalassets/pimmediafiles/documents/variables_rtx.xlsx.

What are the minimum BACnet points to integrate the Regin Regio RTX room transmitter (firmware 2.0)?

Start with BV 9101 RC_OfflineTrigger (Write 1 periodically to stay in normal mode); AV 10002 RC_RoomTemp (Room temperature, °C); AV 10011 RC_CO2Level (Room CO2, ppm); AV 10071 RC_Humidity (Room relative humidity); AV 10281 RC_VOC (VOC index); BV 10001 RC_Presence (Presence indication).

Does the Regin Regio RTX room transmitter (firmware 2.0) need a BACnet heartbeat or have a communication timeout?

BV 9101 RC_OfflineTrigger must be written to 1 periodically (the application sets it back to 0) within RC_OfflineTimeout, default 10 s (that timeout is not a BACnet object). MV 9301 RC_OfflineFunction sets the offline reaction. Analog outputs fall back to their IoAnaOut_n_default AV when communication is lost.

Can the BMS supply sensor values to the Regin Regio RTX room transmitter (firmware 2.0)?

AV 10611 / 10621 / 10681 / 10691 take remote room temperature, CO2, humidity and VOC values, each enabled by its …RemoteSelect BV (10321 / 10331 / 10391 / 10401). BV 10411 with BV 10481 does the same for the presence input.

How do I check these points on the real Regio RTX room transmitter (firmware 2.0)?

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: RTX-2.0-1-02 - Variable list · variables_rtx (Revision A). Object names, instances and units are reproduced as published; descriptions are our own.