Easy BACnet- Home
- BACnet points lists
- Belimo
- Thermal Energy Meter V4
Thermal (BTU) energy meter · BACnet points list
Belimo Thermal Energy Meter V4 BACnet points list
Updated 28 October 2026
The Belimo Thermal Energy Meter combines an ultrasonic flow sensor with supply and return temperature sensors to measure heating and cooling power and energy in hydronic circuits. It offers BACnet MS/TP and BACnet IP (with foreign-device registration). It is a read-only metering device apart from unit selection, meter-register choice and the extra sensor input settings.
This page lists 35 BACnet objects for the Belimo Thermal Energy Meter V4 — 8 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
- Thermal Energy Meter V4
- Equipment
- Thermal (BTU) energy meter
- Equipment type
- Thermostats, sensors & meters
- BACnet objects
- 35 (8 writable)
- Transport
- BACnet IP, BACnet MS/TP
- Firmware
- Application 04.02.0000, firmware 14.10.0002
- Default device instance
- 1
- Also known as
- TEM, Thermal Energy Meter, 22PE-1U, 22PEM-1UC, 22PE…-1U.., Belimo energy meter
BMS integration notes: Belimo Thermal Energy Meter V4
Set the units once (MV 123-127), then read heating and cooling power and energy, flow and the two temperatures. Use the PIV energy objects if the BMS prefers integer totals. Watch MV 99 and AV 140 for faults.
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 |
|---|---|---|---|
| AV 48 | HeatingEnergy_UnitSel | Heating energy total | Read |
| AV 47 | CoolingEnergy_UnitSel | Cooling energy total | Read |
| AV 46 | HeatingPower_UnitSel | Heating power delivered; units set by MV 124 | Read |
| AV 45 | CoolingPower_UnitSel | Cooling power delivered; units set by MV 124 | Read |
| AV 19 | AbsFlow_UnitSel | Measured flow | Read |
| AI 22 | T1_UnitSel | Remote temperature | Read |
| AI 23 | T2_UnitSel | Flow body temperature | Read |
| MV 99 | SummaryStatus | Overall OK / warning / not OK | Read |
| AV 140 | ErrorState | Bit-coded fault and warning flags | Read |
Network setup
- Default device instance 1.
- MS/TP: baud 9600-115200, default 38400; MAC address 0-127, default 1; max 32 nodes without repeater.
- BACnet IP: UDP port configurable, default 47808; foreign-device registration supported.
- Configure with Belimo Assistant 2 or the built-in web server; bus termination shows in BV 99.
Watch out for
- Writable objects with instance 90 and above are persistent; do not write them on a regular basis.
- Avoid toggling MV 200 between certified and lifetime registers, it disrupts energy logging.
- The certified register resets when the sensor module is replaced.
- Max 6 active COV subscriptions.
Belimo Thermal Energy Meter V4 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 | |||||
|---|---|---|---|---|---|---|
| BV | 99 | BusTermination | 120 Ω bus termination enabled | Read | 0=Disabled, 1=Enabled | |
| AV | 10 | RelFlow | Flow relative to nominal flow qp | % | Read | |
| AVmin | 19 | AbsFlow_UnitSel | Measured absolute flow | m³/s, m³/h, l/s, l/min, l/h, gpm or cfm (MV 123) | Read | |
| AV | 100 | Vnom_UnitSel | Nominal flow qp | m³/s, m³/h, l/s, l/min, l/h, gpm or cfm (MV 123) | Read | |
| MV | 123 | UnitSelFlow | Engineering unit for flow objects | Write | 1=m³/s, 2=m³/h, 3=l/s, 4=l/min, 5=l/h, 6=gpm, 7=cfm | |
| AV | 52 | Volume_UnitSel | Accumulated volume | m³, l, gal or cf (MV 126) | Read | |
| PIV | 50 | VolumePIV_UnitSel | Accumulated volume as integer | MV 126 unit | Read | |
| MV | 126 | UnitSelVolume | Engineering unit for volume objects | Write | 1=m³, 2=Litre, 3=Gallon, 4=Cubic Foot | |
| AV | 60 | GlycolConcentration | Glycol concentration | % | Read | |
| MV | 103 | StatusSensor | Flow and temperature sensor status | Read | 1=OK, 2=Flow measurement error, 3=Flowbody temperature not OK, 4=Remote temperature not OK, 5=Communication to flow sensor interrupted | |
| MV | 104 | StatusFlow | Flow status | Read | 1=OK, 2=Actual flow exceeds nominal flow, 3=–, 4=–, 5=Reverse flow | |
| MV | 105 | StatusMedia | Medium status | Read | 1=OK, 2=Glycol detected, 3=Freeze warning | |
| AVmin | 45 | CoolingPower_UnitSel | Cooling power | W, kW, MW, BTU/h, kBTU/h or ton (MV 124) | Read | |
| AVmin | 46 | HeatingPower_UnitSel | Heating power | W, kW, MW, BTU/h, kBTU/h or ton (MV 124) | Read | |
| MV | 124 | UnitSelPower | Engineering unit for power objects | Write | 1=W, 2=kW, 3=MW, 4=BTU/h, 5=kBTU/h, 6=ton | |
| AV | 116 | Pnom_UnitSel | Nominal power | W, kW, MW, BTU/h, kBTU/h or ton (MV 124) | Read | |
| AVmin | 47 | CoolingEnergy_UnitSel | Cooling energy meter | J, kJ, MJ, GJ, Wh, kWh, MWh, BTU, kBTU or ton-h (MV 125) | Read | |
| AVmin | 48 | HeatingEnergy_UnitSel | Heating energy meter | J, kJ, MJ, GJ, Wh, kWh, MWh, BTU, kBTU or ton-h (MV 125) | Read | |
| MV | 125 | UnitSelEnergy | Engineering unit for energy objects | Write | 1=J, 2=kJ, 3=MJ, 4=GJ, 5=Wh, 6=kWh, 7=MWh, 8=BTU, 9=kBTU, 10=tonh | |
| MV | 200 | SelectMeterRegisters | Certified (MID) or lifetime meter register | Write | 1=Certified meter register, 2=Lifetime meter register | |
| PIV | 31 | CoolingEnergyPIV_UnitSel | Cooling energy meter as integer | MV 125 unit | Read | |
| PIV | 32 | HeatingEnergyPIV_UnitSel | Heating energy meter as integer | MV 125 unit | Read | |
| PIV | 201 | MeterSerialNo_Part1 | Energy meter serial number, first digits | Read | ||
| PIV | 202 | MeterSerialNo_Part2 | Energy meter serial number, last digits | Read | ||
| AImin | 22 | T1_UnitSel | Remote temperature T1 | °C, K or °F (MV 127) | Read | |
| AImin | 23 | T2_UnitSel | Flow body temperature T2 | °C, K or °F (MV 127) | Read | |
| AI | 20 | Sens1Active_Volt | Sensor 1 input as voltage (active sensor) | V | Read | |
| AI | 21 | Sens1Passive_Ohm | Sensor 1 input as resistance (passive sensor) | Ω | Read | |
| AV | 20 | Sens1Temp_UnitSel | Sensor 1 as temperature (passive sensor) | °C, K or °F (MV 127) | Read | |
| BI | 20 | Sens1Switch | Sensor 1 as switch input | Read | 0=Inactive, 1=Active | |
| MV | 127 | UnitSelTemperature | Engineering unit for temperature objects | Write | 1=°C, 2=K, 3=°F | |
| MV | 220 | Sens1Type | Sensor 1 input type | Write | 1=None, 2=Active Volt, 3=–, 4=Passive, 5=Switch | |
| MV | 221 | Sens1TempType | Sensor 1 passive element type | Write | 1=None, 2=PT1000, 3=Ni1000EU, 4=–, 5=–, 6=–, 7=–, 8=NTC10k2, 9=NTC10k3 | |
| AVmin | 140 | ErrorState | Bit-coded error and warning flags | Read | Bit 3=Reverse flow, 6=Flow actual exceeds flow nominal, 7=Flow measurement error, 8=Remote temperature error, 9=Flowbody temperature error, 10=Communication to sensor interrupted, 11=Freeze warning, 12=Glycol detected, 14=Device end of life reached | |
| MVmin | 99 | SummaryStatus | Summary of MV 103-105 | Read | 1=Ok, 2=Warning, 3=Not Ok |
No points match these filters.
Integration notes
- The document prints access as R / W; those objects are listed here as writable (W).
- Units of flow, power, energy, volume and temperature objects follow the unit-select MVs 123-127.
- MV 200 picks the certified register (MID models 22PEM only) or the lifetime register; energy and volume objects follow it.
- Sensor 1 objects (AI 20/21, AV 20, BI 20) are out of service unless MV 220/221 select the matching sensor type.
- Value ranges depend on pipe size (DN).
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. Easy BACnet scans a network for BACnet IP devices from an Android phone, reads every object on the Thermal Energy Meter V4 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 Thermal Energy Meter V4
How many BACnet points does the Belimo Thermal Energy Meter V4 have?
This list has 35 BACnet objects: 4 analog inputs, 12 analog values, 1 binary input, 1 binary value, 12 multi-state values, 5 positive integer values. The exact set on a given unit depends on its firmware, installed options and configuration.
Which Belimo Thermal Energy Meter V4 BACnet points are writable?
8 of the 35 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 Thermal Energy Meter V4 BACnet documentation?
The source is BACnet Interface Description, Thermal Energy Meter (TEM), DN 15...50 (Version 4), revision 2025-11 / V4.2.0, published free by Belimo at https://www.belimo.com/mam/general-documents/system_integration/BACnet/belimo_BACnet_Interface-description_TEM_V4_2_en-gb.pdf.
What are the minimum BACnet points to integrate the Belimo Thermal Energy Meter V4?
Start with AV 48 HeatingEnergy_UnitSel (Heating energy total); AV 47 CoolingEnergy_UnitSel (Cooling energy total); AV 46 HeatingPower_UnitSel (Heating power delivered; units set by MV 124); AV 45 CoolingPower_UnitSel (Cooling power delivered; units set by MV 124); AV 19 AbsFlow_UnitSel (Measured flow); AI 22 T1_UnitSel (Remote temperature); AI 23 T2_UnitSel (Flow body temperature); MV 99 SummaryStatus (Overall OK / warning / not OK); AV 140 ErrorState (Bit-coded fault and warning flags).
How do I check these points on the real Thermal Energy Meter V4?
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
- Pressure-independent control valve
Belimo 2-way EPIV V4
Belimo 2-way electronic pressure-independent valves (EPIV) version 4.2, DN 15 to 50, BACnet models EP..R2+(K)BAC.
Also known as: EPIV, EP..R2+BAC, EP..R2+KBAC, Electronic Pressure Independent Valve, 2-way EPIV DN 15-50 - Ultrasonic liquid flow sensor
Belimo 22PF Flow Sensor
Belimo 22PF-.. ultrasonic flow sensors for water and glycol pipes, interface version 4.3.0.
Also known as: 22PF, 22PF-.., Belimo ultrasonic flow sensor, Flow Sensor 22PF - 6-way pressure-independent control valve
Belimo 6-way EPIV
Belimo 6-way EPIV (EP..R-R6+BAC) used to switch and control a single coil between heating and cooling sequences.
Also known as: EP..R-R6+BAC, 6-way EPIV, 6-way characterised control valve, Belimo 6-way valve - Duct / outdoor sensors (temperature, humidity, CO2, VOC, differential pressure)
Belimo Duct and Pipe Sensors (22DTH, 22UTH, 22DTM, 22ADP) BACnet
Belimo BACnet MS/TP sensors: 22DTH duct temperature/humidity, 22UTH outdoor temperature/humidity, 22DTM duct CO2/VOC and 22ADP differential pressure/airflow sensors.
Also known as: 22DTH-..6.., 22UTH-..60X, 22DTM-..6, 22ADP-..6.., 22DTH-16M, 22DTH-56M, 22UTH-160X, 22UTH-560X, 22DTM-16, 22DTM-56, 22ADP-164, 22ADP-164L, 22ADP-56Q, 22ADP-56QB, 22ADP-564L, 22ADP-566L - Pressure-independent control valve with energy meter
Belimo Energy Valve V4
Belimo Energy Valve version 4, DN 15 to 50, BACnet models EV..R2+(K)BAC, EV..R2+MID and EV..R3+BAC.
Also known as: Energy Valve, EV..R2+BAC, EV..R2+KBAC, EV..R2+MID, EV..R3+BAC, Belimo Energy Valve 4 - Valve actuator (Ethernet, IoT)
Belimo IoT Valve Actuators VxM24A-LP1 / VxR24A-LP1 (BACnet IP)
Belimo IoT product range valve actuators VLM/VLR, VNM/VNR, VSM/VSR and VGM/VGR 24A-LP1 with Ethernet and BACnet IP.
Also known as: VLM24A-LP1, VLR24A-LP1, VNM24A-LP1, VNR24A-LP1, VSM24A-LP1, VSR24A-LP1, VGM24A-LP1, VGR24A-LP1, Belimo IoT Product Range - Butterfly valve actuator
Belimo PR..-BAC-.. Butterfly Valve Actuator (BACnet MS/TP)
Belimo PR rotary actuators for butterfly valves in the BACnet MS/TP version (PR..-BAC-..).
Also known as: PR..-BAC-.., Belimo PR actuator, PR BACnet - Room sensor / operating unit
Belimo Room Operating Unit 22RT-5U00
Belimo 22RT...-5U00... room operating units with virtual or ePaper touch display, measuring temperature, humidity and CO2.
Also known as: 22RT, 22RT…-5U00…, Room Operating Unit, ROU, 22RTM-5U00, Belimo room sensor BACnet - VAV compact controller (actuator with flow sensor)
Belimo VAV-Compact
Belimo VAV-Compact volumetric flow controllers with the BACnet/Modbus interface (..MV-D3-MOD and ..HV24A-MOD).
Also known as: VAV-Compact MOD, ..MV-D3-MOD, ..HV24A-MOD, LMV-D3-MOD, NMV-D3-MOD, SMV-D3-MOD, LHV24A-MOD - VAV / CAV / pressure controller
Belimo VAV-Universal VRU
Belimo VAV-Universal controllers VRU-D3-BAC, VRU-M1-BAC and VRU-M1R-BAC used for VAV/CAV airflow, duct pressure and room pressure control.
Also known as: VAV-Universal, VRU-D3-BAC, VRU-M1-BAC, VRU-M1R-BAC, VRU-..-BAC
Source: BACnet Interface Description, Thermal Energy Meter (TEM), DN 15...50 (Version 4) · rev. 2025-11 / V4.2.0. Object names, instances and units are reproduced as published; descriptions are our own.