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Butterfly valve actuator · BACnet points list
Belimo JR..A-BAC-.. Butterfly Valve Actuator (BACnet MS/TP) BACnet points list
Updated 6 November 2026
The JR..A-BAC-.. is a Belimo rotary actuator for butterfly valves with BACnet MS/TP on board. The BMS writes a % setpoint to AO 1 and reads position and status; two extra sensor inputs (0-10 V, passive temperature or switch) can be read over the bus. The setpoint can also come from a 0-10 V signal, chosen with SpSource (MV 122).
This page lists 26 BACnet objects for the Belimo JR..A-BAC-.. Butterfly Valve Actuator (BACnet MS/TP) — 13 of them writable — with each object’s type, instance number, name, engineering units and access. It is re-typed from Belimo’s own free documentation, linked below.
- Manufacturer
- Belimo
- Model
- JR..A-BAC-.. Butterfly Valve Actuator (BACnet MS/TP)
- Equipment
- Butterfly valve actuator
- Equipment type
- Valves & actuators
- BACnet objects
- 26 (13 writable)
- Transport
- BACnet MS/TP
- Firmware
- Application JR/QR 1.6.0001
- Also known as
- JR actuator, JR..A-BAC-.., Belimo JR BACnet, JR/QR
Reference only, provided as-is: verify against Belimo’s current documentation and the live device before use. Not official Belimo information. Terms of use.
BMS integration notes: Belimo JR..A-BAC-.. Butterfly Valve Actuator (BACnet MS/TP)
Set MV 122 SpSource to Bus and command AO 1 SpRel. Read AI 1 position and MV 99 summary status. The bus watchdog (AV 130, default 120 s) needs AO 1 or MV 1 to be rewritten within the timeout.
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 |
|---|---|---|---|
| AO 1 | SpRel | Valve setpoint, % (up to Max, AV 98) | Command |
| MV 122 | SpSource | Must be Bus for AO 1 to take effect | Write |
| AI 1 | RelPos | Valve position feedback | Read |
| MV 99 | SummaryStatus | OK / warning / not OK summary | Read |
Enable & remote start
MV 122 SpSource selects the setpoint: Analog (1, default) follows the 0-10 V signal on wire 3; Bus (2) uses AO 1. MV 1 Override can force Open, Close, Mid or Max.
Heartbeat & communication loss
AV 130 BusWatchdog, 5-3600 s, default 120 s. If neither AO 1 nor MV 1 is rewritten within the timeout the actuator runs the action in MV 130 BusFailAction (default None) and MV 135 shows Bus Watchdog active.
Network setup
- MS/TP only: baud 9600, 19200, 38400, 76800 or 115200 (default 38400); address 0-127 (default 1).
- Max 32 nodes without repeater; 120 ohm termination (BV 99 shows its state).
- Configure with Belimo Assistant 2.
Watch out for
- Writable objects with instance 90 or above are stored persistently and should not be written cyclically.
- Default SpSource is Analog, so AO 1 does nothing until MV 122 is set to Bus.
- Max 5 active COV subscriptions, lifetime up to 8 hours.
Belimo JR..A-BAC-.. Butterfly Valve Actuator (BACnet MS/TP) 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 | |||||
|---|---|---|---|---|---|---|
| AImin | 1 | RelPos | Relative position | % | Read | |
| AI | 6 | SpAnalog | Analog setpoint when SpSource is Analog | % | Read | |
| AI | 20 | Sens1Active_Volt | Sensor 1 as voltage (active sensor) | V | Read | |
| AI | 21 | Sens1Passive_Ohm | Sensor 1 as resistance (passive sensor) | Ω | Read | |
| AI | 34 | Sens2Active_Volt | Sensor 2 as voltage (active sensor) | V | Read | |
| AI | 35 | Sens2Passive_Ohm | Sensor 2 as resistance (passive sensor) | Ω | Read | |
| AOmin | 1 | SpRel | Bus setpoint, used when SpSource is Bus | % | Command | |
| AV | 2 | AbsPos | Absolute position | ° | Read | |
| AV | 20 | Sens1Temp_UnitSel | Sensor 1 temperature in the unit set by MV 127 | Read | ||
| AV | 24 | Sens2Temp_UnitSel | Sensor 2 temperature in the unit set by MV 127 | Read | ||
| AV | 98 | Max | Maximum limit, at least 30 % | % | Write | |
| AV | 130 | BusWatchdog | Bus watchdog timeout (5-3600 s, default 120) | s | Write | |
| BI | 20 | Sens1Switch | Sensor 1 as switch input | Write | 0=Inactive, 1=Active | |
| BI | 21 | Sens2Switch | Sensor 2 as switch input | Write | 0=Inactive, 1=Active | |
| BV | 99 | BusTermination | Bus termination enabled | Read | 0=Disabled, 1=Enabled | |
| MV | 1 | Override | Override the setpoint with fixed positions | Write | 1=None, 2=Open, 3=Close, 4=-, 5=Mid, 6=Max, 7-14=- | |
| MVmin | 99 | SummaryStatus | Summary of all status | Read | 1=OK, 2=Warning, 3=Not OK | |
| MV | 106 | StatusActuator | Actuator status | Read | 1=OK, 2=Mechanical overload, 3=Gear train disengaged / hand crank plugged, 4=- | |
| MVmin | 122 | SpSource | Setpoint source: analog 0-10 V or bus AO 1 | Write | 1=Analog, 2=Bus | |
| MV | 127 | UnitSelTemperature | Temperature unit for AV 20 and AV 24 | Write | 1=°C, 2=K, 3=°F | |
| MV | 130 | BusFailAction | Action when the bus watchdog expires | Write | 1=None, 2=Open, 3=Close, 4=Max, 5=-, 6=Mid, 7-14=- | |
| MV | 135 | StatusBusWatchdog | Bus watchdog status | Read | 1=OK, 2=Bus Watchdog active | |
| MV | 220 | Sens1Type | Sensor 1 type | Write | 1=None, 2=Active Volt, 3=-, 4=Passive, 5=Switch | |
| MV | 221 | Sens1TempType | Sensor 1 passive type | Write | 1=None, 2=PT1000, 3=Ni1000EU, 4=-, 5=-, 6=-, 7=-, 8=NTC10k2, 9=NTC10k3 | |
| MV | 222 | Sens2Type | Sensor 2 type | Write | 1=None, 2=Active Volt, 3=-, 4=Passive, 5=Switch | |
| MV | 223 | Sens2TempType | Sensor 2 passive type | Write | 1=None, 2=PT1000, 3=Ni1000EU, 4=-, 5=-, 6=-, 7=-, 8=NTC10k2, 9=NTC10k3 |
No points match these filters.
Object ID lookup: Belimo JR Butterfly Valve Actuator point IDs by name
AI1RelPosAI6SpAnalogAI20Sens1Active_VoltAI21Sens1Passive_OhmAI34Sens2Active_VoltAI35Sens2Passive_OhmAO1SpRelAV2AbsPosAV20Sens1Temp_UnitSelAV24Sens2Temp_UnitSelAV98MaxAV130BusWatchdogBI20Sens1SwitchBI21Sens2SwitchBV99BusTerminationMV1OverrideMV99SummaryStatusMV106StatusActuatorMV122SpSourceMV127UnitSelTemperatureMV130BusFailActionMV135StatusBusWatchdogMV220Sens1TypeMV221Sens1TempTypeMV222Sens2TypeMV223Sens2TempType
Integration notes
- Sensor objects and the analog setpoint go Out_Of_Service when they do not apply to the selected sensor type or setpoint source.
- AV 20 / AV 24 temperatures follow the unit picked in MV 127 (°C, K or °F), so no unit is shown.
- State lists keep Belimo's unused positions shown as '-'.
- The document marks BI 20 / BI 21 as R / W; kept as writable.
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 JR..A-BAC-.. Butterfly Valve Actuator (BACnet MS/TP) 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 Belimo JR..A-BAC-.. Butterfly Valve Actuator (BACnet MS/TP)
How many BACnet points does the Belimo JR..A-BAC-.. Butterfly Valve Actuator (BACnet MS/TP) have?
This list has 26 BACnet objects: 6 analog inputs, 1 analog output, 5 analog values, 2 binary inputs, 1 binary value, 11 multi-state values. The exact set on a given unit depends on its firmware, installed options and configuration.
Which Belimo JR..A-BAC-.. Butterfly Valve Actuator (BACnet MS/TP) BACnet points are writable?
13 of the 26 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 Belimo JR..A-BAC-.. Butterfly Valve Actuator (BACnet MS/TP) BACnet documentation?
The source is BACnet Interface Description, JR actuator (rotary actuator for butterfly valves) (V1.06), revision 2026-01, published free by Belimo at https://www.belimo.com/mam/general-documents/system_integration/BACnet/belimo_BACnet_Interface-description_JR_V1_6_en-gb.pdf.
What are the minimum BACnet points to integrate the Belimo JR..A-BAC-.. Butterfly Valve Actuator (BACnet MS/TP)?
Start with AO 1 SpRel (Valve setpoint, % (up to Max, AV 98)); MV 122 SpSource (Must be Bus for AO 1 to take effect); AI 1 RelPos (Valve position feedback); MV 99 SummaryStatus (OK / warning / not OK summary).
How do I enable BMS control of the Belimo JR..A-BAC-.. Butterfly Valve Actuator (BACnet MS/TP)?
MV 122 SpSource selects the setpoint: Analog (1, default) follows the 0-10 V signal on wire 3; Bus (2) uses AO 1. MV 1 Override can force Open, Close, Mid or Max.
Does the Belimo JR..A-BAC-.. Butterfly Valve Actuator (BACnet MS/TP) need a BACnet heartbeat or have a communication timeout?
AV 130 BusWatchdog, 5-3600 s, default 120 s. If neither AO 1 nor MV 1 is rewritten within the timeout the actuator runs the action in MV 130 BusFailAction (default None) and MV 135 shows Bus Watchdog active.
How do I check these points on the real JR..A-BAC-.. Butterfly Valve Actuator (BACnet MS/TP)?
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 Belimo BACnet points lists
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Also known as: Energy Valve, EV..R2+BAC, EV..R2+KBAC, EV..R2+MID, EV..R3+BAC, Belimo Energy Valve 4 - Fire and smoke damper actuator test module
Belimo FSKN120-BAC / FSKN24-BAC fire and smoke damper test module
Belimo FSKN120-BAC and FSKN24-BAC remote test modules for spring-return fire and combination fire/smoke damper actuators (FSTF, FSLF, FSNF, FSAFB, FSAF*A) in containment applications.
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Belimo PR..-BAC-.. Butterfly Valve Actuator (BACnet MS/TP)
Belimo PR rotary actuators for butterfly valves in the BACnet MS/TP version (PR..-BAC-..).
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Belimo Room Operating Unit 22RT-5U00
Belimo 22RT...-5U00... room operating units with virtual or ePaper touch display, measuring temperature, humidity and CO2.
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Also known as: TEM, Thermal Energy Meter, 22PE-1U, 22PEM-1UC, 22PE…-1U.., Belimo energy meter - VAV compact controller (actuator with flow sensor)
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Also known as: ZoneEase VAV, LMV-BAC-.., NMV-BAC-.., Belimo ZoneEase
Source: BACnet Interface Description, JR actuator (rotary actuator for butterfly valves) · V1.06 · rev. 2026-01. Object names, instances and units are reproduced as published; descriptions are our own.