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Ultrasonic flow meter (clamp-on) · BACnet points list
ONICON F-4300 clamp-on ultrasonic flow meter (BACnet MS/TP) BACnet points list
Updated 12 November 2026
The F-4300 is a clamp-on transit-time ultrasonic flow meter. Over BACnet MS/TP it reports velocity, flow rate, speed of sound and signal strength, a volume total with previous-day values, two relay states and a sensor status code.
This page lists 12 BACnet objects for the ONICON F-4300 clamp-on ultrasonic flow meter (BACnet MS/TP) — 3 of them writable — with each object’s type, instance number, name, engineering units and access. It is re-typed from ONICON’s own free documentation, linked below.
- Manufacturer
- ONICON
- Model
- F-4300 clamp-on ultrasonic flow meter (BACnet MS/TP)
- Equipment
- Ultrasonic flow meter (clamp-on)
- Equipment type
- Thermostats, sensors & meters
- BACnet objects
- 12 (3 writable)
- Transport
- BACnet MS/TP
- Firmware
- 1.25.0 (application 1.27.9.0)
- Default device instance
- 57017
- Also known as
- F-4300, F4300, ONICON F-4300, F-4300 clamp-on
Reference only, provided as-is: verify against ONICON’s current documentation and the live device before use. Not official ONICON information. Terms of use.
BMS integration notes: ONICON F-4300 clamp-on ultrasonic flow meter (BACnet MS/TP)
Read AI 2 for flow rate and AV 1 for the total, and map MSV 1 for sensor faults. AI 4 signal strength helps when the reading looks wrong.
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 |
|---|---|---|---|
| BV 1 | Reset Volume Total | Resets the volume total | Write |
| AI 2 | Flow Rate | Flow rate | Read |
| AV 1 | Volume Total | Volume total | Read |
| AI 4 | Signal Strength | Transducer signal strength | Read |
| MV 1 | Flow Sensor Status | Sensor status, 0 = good | Read |
Network setup
- MAC address 1-247 (default 17); device instance default 57017; baud 9600-76800 (default 38400).
- Protocol (BACnet or Modbus), device ID and MAC are set in the meter's Special Functions menu.
- 120 ohm termination by jumper JP1 (default off); no biasing. The manual asks for a 3-wire RS485 connection.
Watch out for
- Check the Units property of each AI/AV on site; the PICS does not list them.
ONICON F-4300 clamp-on ultrasonic flow meter (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 | |||||
|---|---|---|---|---|---|---|
| AI | 1 | Velocity Reading | Flow velocity at the meter | Read | ||
| AImin | 2 | Flow Rate | Volume flow rate at the meter | Read | ||
| AI | 3 | Sonic Velocity | Speed of sound in the liquid | Read | ||
| AImin | 4 | Signal Strength | Transducer signal strength | Read | ||
| AVmin | 1 | Volume Total | Total flow volume | Read | ||
| AV | 2 | Logging Used | Log memory used | Read | ||
| AV | 3 | Previous Day Avg. Flow | Average flow rate for the previous day | Read | ||
| AV | 4 | Previous Day Volume | Volume total for the previous day | Read | ||
| BVmin | 1 | Reset Volume Total | Write to reset the volume total | Write | ||
| BV | 2 | Relay 1 State | Current state of relay 1 | Write | ||
| BV | 3 | Relay 2 State | Current state of relay 2 | Write | ||
| MVmin | 1 | Flow Sensor Status | Flow sensor status | Read | 0=Sensor good, 1=Low signal, 2=Sensor open, 3=Sensor short, 4=Sensor check calibration, 5=Sensor relay fault, 6=Sensor system fault |
No points match these filters.
Object ID lookup: ONICON F-4300 point IDs by name
Integration notes
- Object names from tables 2a, 3a, 4a and 5a of the PICS section; the device Object_List matches (AI 1-4, AV 1-4, BV 1-3, MSV 1).
- Units are not printed per object; the PICS gives them as "Various".
- The BV table marks Present_Value writable for all three BVs, including the relay states; only BV 1 is a command.
- AI Present_Value is commandable only while Out_Of_Service is true.
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 F-4300 clamp-on ultrasonic flow meter (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 ONICON F-4300 clamp-on ultrasonic flow meter (BACnet MS/TP)
How many BACnet points does the ONICON F-4300 clamp-on ultrasonic flow meter (BACnet MS/TP) have?
This list has 12 BACnet objects: 4 analog inputs, 4 analog values, 3 binary values, 1 multi-state value. The exact set on a given unit depends on its firmware, installed options and configuration.
Which ONICON F-4300 clamp-on ultrasonic flow meter (BACnet MS/TP) BACnet points are writable?
3 of the 12 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 ONICON F-4300 clamp-on ultrasonic flow meter (BACnet MS/TP) BACnet documentation?
The source is F-4300 Clamp-on Ultrasonic Flow Meter Manual (DOC-0003010), revision Rev. S, published free by ONICON at https://www.onicon.com/download/f-4300-clamp-on-ultrasonic-flow-meter-manual/?v=6247.
What are the minimum BACnet points to integrate the ONICON F-4300 clamp-on ultrasonic flow meter (BACnet MS/TP)?
Start with BV 1 Reset Volume Total (Resets the volume total); AI 2 Flow Rate (Flow rate); AV 1 Volume Total (Volume total); AI 4 Signal Strength (Transducer signal strength); MV 1 Flow Sensor Status (Sensor status, 0 = good).
How do I check these points on the real F-4300 clamp-on ultrasonic flow meter (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 ONICON BACnet points lists
- Turbine flow meter (insertion)
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ONICON F-1500 series insertion turbine flow meters with the communication type set to BACnet MS/TP.
Also known as: F-1500, F-1500 Series Turbine Meter, ONICON F-1500 BACnet - Ultrasonic flow meter
ONICON F-4600 Inline Ultrasonic Flow Meter (LCD)
ONICON F-4600 inline ultrasonic flow meters with LCD and the BACnet MS/TP output.
Also known as: F-4600, F-4600-BAC, F4600, ONICON F-4600 - Electromagnetic flow meter
ONICON FT-3000 series (FT-3200) inline electromagnetic flow meter, BACnet MS/TP
ONICON FT-3000 series inline electromagnetic flow meters with the BACnet MS/TP output (PICS model FT-32**-*****-21**).
Also known as: FT-3200, FT-3000, FT-32**-*****-21**, ONICON FT-3000 BACnet - Electromagnetic flow / BTU meter
ONICON FT-3500 insertion electromagnetic flow / BTU meter
ONICON FT-3500 insertion electromagnetic flow meters (FT-3500-1 and FT-3500-2), including the energy (BTU) configuration.
Also known as: FT-3500, FT-3500-1, FT-3500-2, FT3500, ONICON FT-3500 - BTU (energy) meter
ONICON System-10-BAC BTU Meter Network Interface
ONICON System-10 BTU meters fitted with the BACnet network interface (BACnet MS/TP or BACnet IP).
Also known as: System-10-BAC, System-10, System 10 BTU meter, ONICON System-10 - BTU (energy) meter, two-channel
ONICON System-1000 Flow and Energy Measurement System
ONICON System-1000 flow and energy (BTU) meters, single or two-channel, with the BACnet MS/TP or BACnet IP network option.
Also known as: System-1000, SYS-1000, SYS-1100-111, SYS-1100-121, SYS-1200-111, SYS-1200-121, ONICON System 1000 BTU meter - BTU (energy) meter
ONICON System-20 BTU Meter
ONICON System-20 BTU meters with the RS485 BACnet MS/TP interface, used on chilled and hot water loops.
Also known as: System-20, System 20, ONICON System-20, S-20 BTU meter - BTU (energy) meter, clamp-on ultrasonic
ONICON System-40 BTU Measurement System
ONICON System-40 BTU measurement systems (clamp-on ultrasonic flow plus supply/return temperature) with the BACnet MS/TP interface.
Also known as: System-40, System 40, System-40-BAC, ONICON System-40
Source: F-4300 Clamp-on Ultrasonic Flow Meter Manual · DOC-0003010 · rev. Rev. S. Object names, instances and units are reproduced as published; descriptions are our own.