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Ultrasonic liquid flow and energy meter · BACnet points list
Sierra Instruments InnovaSonic 207i Ultrasonic Liquid Flow Meter BACnet points list
Updated 6 November 2026
The InnovaSonic 207i is a clamp-on ultrasonic liquid flow meter that can also calculate thermal energy. With its BACnet MS/TP module it exposes 23 Analog Inputs (flow, velocity, flow and energy totals, temperatures, pressure, density, enthalpy, signal diagnostics and two error-flag words) and one Analog Value to reset the totalizers.
This page lists 24 BACnet objects for the Sierra Instruments InnovaSonic 207i Ultrasonic Liquid Flow Meter — 1 of them writable — with each object’s type, instance number, name, engineering units and access. It is re-typed from Sierra Instruments’s own free documentation, linked below.
- Manufacturer
- Sierra Instruments
- Model
- InnovaSonic 207i Ultrasonic Liquid Flow Meter
- Equipment
- Ultrasonic liquid flow and energy meter
- Equipment type
- Thermostats, sensors & meters
- BACnet objects
- 24 (1 writable)
- Transport
- BACnet MS/TP
- Firmware
- Not stated
- Also known as
- 207i, InnovaSonic 207i, Sierra 207i
Reference only, provided as-is: verify against Sierra Instruments’s current documentation and the live device before use. Not official Sierra Instruments information. Terms of use.
BMS integration notes: Sierra Instruments InnovaSonic 207i Ultrasonic Liquid Flow Meter
Read flow, the net totalizer and, for energy metering, the energy flow rate and net energy total. Monitor the two error-flag AIs. Totalizers can be reset by writing AV-1.
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 |
|---|---|---|---|
| AI 1 | Flow | Flow rate | Read |
| AI 5 | NET Totalizer | Net flow total | Read |
| AI 6 | Energy Flow Rate | Thermal energy rate | Read |
| AI 9 | Net Energy Tot | Net energy total | Read |
| AI 12 | Quality | Signal quality, % | Read |
| AI 22 | Error Flag 1 | Error flag word 1 | Read |
| AI 23 | Error Flag 2 | Error flag word 2 | Read |
Network setup
- Set the MS/TP baud (9600, 19200 or 38400) and MAC address (1-127) with the 207i SIP software or the meter keypad.
- The BACnet module normally sits in slot 12 of the terminal board; RS-485 terminals are A-, B+ and C (isolated ground).
- Give every meter a unique MAC address and device instance.
Watch out for
- After writing 1, 2 or 3 to AV-1 to reset totals, write 0 again or the totals keep resetting.
- Duplicate MAC addresses can lock up the whole MS/TP bus.
Sierra Instruments InnovaSonic 207i Ultrasonic Liquid Flow Meter 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.
| Description | States | |||||
|---|---|---|---|---|---|---|
| AImin | 1 | Flow | Current Flow Rate | per meter setup | Read | |
| AI | 2 | Velocity | Current Velocity of Fluid | m/s | Read | |
| AI | 3 | POS Totalizer | POS Flow Total | per meter setup | Read | |
| AI | 4 | NEG Totalizer | NEG Flow total | per meter setup | Read | |
| AImin | 5 | NET Totalizer | Net Flow Total of Fluid | per meter setup | Read | |
| AImin | 6 | Energy Flow Rate | Energy Flow Rate of Fluid | per meter setup | Read | |
| AI | 7 | + Energy Tot | Energy Positive Total | per meter setup | Read | |
| AI | 8 | -Energy Tot | Energy Negative Total | per meter setup | Read | |
| AImin | 9 | Net Energy Tot | Energy Net Total | per meter setup | Read | |
| AI | 10 | Dt | Delta Time | ns | Read | |
| AI | 11 | Signal | Signal Amplitude | dB | Read | |
| AImin | 12 | Quality | Quality of Signal | % | Read | |
| AI | 13 | Noise | Noise Portion in Signal | dB | Read | |
| AI | 14 | Gain | Gain at Amplifier | % | Read | |
| AI | 15 | Fluid Temp | Temperature of the Fluid | °C or °F (per meter setup) | Read | |
| AI | 16 | Inlet Temp | Inlet Temperature | °C or °F (per meter setup) | Read | |
| AI | 17 | Outlet Temp | Outlet Temperature | °C or °F (per meter setup) | Read | |
| AI | 18 | Fluid Pressure | per meter setup | Read | ||
| AI | 19 | Fluid Density | per meter setup | Read | ||
| AI | 20 | Inlet Enthalpy | kJ/kg | Read | ||
| AI | 21 | Outlet Enthalpy | kJ/kg | Read | ||
| AImin | 22 | Error Flag 1 | Read | |||
| AImin | 23 | Error Flag 2 | Read | |||
| AV | 1 | Reset Totalizers | Write 1-3 to reset, then write 0 | Write | 0=Do nothing, 1=Reset flow totalizers, 2=Reset energy totalizers, 3=Reset flow and energy totalizers |
No points match these filters.
Object ID lookup: Sierra Instruments InnovaSonic 207i Ultrasonic Liquid Flow Meter point IDs by name
AI1FlowAI2VelocityAI3POS TotalizerAI4NEG TotalizerAI5NET TotalizerAI6Energy Flow RateAI7+ Energy TotAI8-Energy TotAI9Net Energy TotAI10DtAI11SignalAI12QualityAI13NoiseAI14GainAI15Fluid TempAI16Inlet TempAI17Outlet TempAI18Fluid PressureAI19Fluid DensityAI20Inlet EnthalpyAI21Outlet EnthalpyAI22Error Flag 1AI23Error Flag 2AV1Reset Totalizers
Integration notes
- From section 4.3, BACnet Supported Device, Object and Property Table (manual pages 17-26), and 4.4.2 for AV-1. The quick-start guide P/N 47-0572-A lists the same 23 AI + 1 AV.
- Object names are the Object Name property values from the table; several differ from the row labels (for example AI-7 "+ Energy Tot").
- Flow, total, pressure and density units follow the units chosen in the meter menu. No read/write column is printed; only AV-1 is described 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 InnovaSonic 207i Ultrasonic Liquid Flow Meter 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 Sierra Instruments InnovaSonic 207i Ultrasonic Liquid Flow Meter
How many BACnet points does the Sierra Instruments InnovaSonic 207i Ultrasonic Liquid Flow Meter have?
This list has 24 BACnet objects: 23 analog inputs, 1 analog value. The exact set on a given unit depends on its firmware, installed options and configuration.
Which Sierra Instruments InnovaSonic 207i Ultrasonic Liquid Flow Meter BACnet points are writable?
1 of the 24 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 Sierra Instruments InnovaSonic 207i Ultrasonic Liquid Flow Meter BACnet documentation?
The source is InnovaSonic 207i BACnet Instruction Manual (IM-207i-BACnet), revision V2.3/19, published free by Sierra Instruments at https://sierrainstruments.com/userfiles/file/manuals/207i-bacnet-manual.pdf.
What are the minimum BACnet points to integrate the Sierra Instruments InnovaSonic 207i Ultrasonic Liquid Flow Meter?
Start with AI 1 Flow (Flow rate); AI 5 NET Totalizer (Net flow total); AI 6 Energy Flow Rate (Thermal energy rate); AI 9 Net Energy Tot (Net energy total); AI 12 Quality (Signal quality, %); AI 22 Error Flag 1 (Error flag word 1); AI 23 Error Flag 2 (Error flag word 2).
How do I check these points on the real InnovaSonic 207i Ultrasonic Liquid Flow Meter?
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 Sierra Instruments BACnet points lists
- Vortex flow meter (volumetric and mass)
Sierra Instruments InnovaMass 240/241 Vortex Flow Meter (legacy, BACnet v1)
Older Sierra InnovaMass 240 inline and 241 insertion vortex flow meters with BACnet MS/TP (manual Rev. V1), before the 240i/241i series.
Also known as: 240, 241, InnovaMass 240, InnovaMass 241 - Vortex flow meter (volumetric and mass)
Sierra Instruments InnovaMass 240i/241i Vortex Flow Meter
Sierra InnovaMass 240i inline and 241i insertion vortex flow meters with BACnet MS/TP.
Also known as: 240i, 241i, InnovaMass 240i, InnovaMass 241i, Sierra 240i
Source: InnovaSonic 207i BACnet Instruction Manual · IM-207i-BACnet · rev. V2.3/19. Object names, instances and units are reproduced as published; descriptions are our own.