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Ultrasonic flow meter · BACnet points list
ONICON F-4600 Inline Ultrasonic Flow Meter (LCD) BACnet points list
Updated 4 November 2026
The F-4600 is an inline ultrasonic flow meter. Its BACnet object list keeps the energy objects of ONICON's BTU meters but marks them not used; the meter fills in flow rate, fluid temperature, signal diagnostics, volume totals and pulse input totals. It talks BACnet MS/TP or Modbus on an RS485 port.
This page lists 46 BACnet objects for the ONICON F-4600 Inline Ultrasonic Flow Meter (LCD) — 7 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-4600 Inline Ultrasonic Flow Meter (LCD)
- Equipment
- Ultrasonic flow meter
- Equipment type
- Thermostats, sensors & meters
- BACnet objects
- 46 (7 writable)
- Transport
- BACnet MS/TP
- Firmware
- Not stated
- Default device instance
- 57017
- Also known as
- F-4600, F-4600-BAC, F4600, ONICON F-4600
- Source document
- F-4600 with LCD Flow Meter Manual · DOC-0003880 · rev. Rev.D
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-4600 Inline Ultrasonic Flow Meter (LCD)
Read AI 2 for flow rate and AV 9 for the volume total, plus AI 3 if the fluid temperature is useful. Map AI 7 Signal quality and MV 1 Meter Status for diagnostics. Skip the objects marked not used.
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 2 | Volume rate | Flow rate, gpm by default | Read |
| AV 9 | Mode 1 volume total | Volume total, gallons by default | Read |
| AI 3 | Supply internal temperature | Fluid temperature measured by the meter | Read |
| BV 10 | Flow direction | Reverse flow flag | Read |
| AI 7 | Signal quality | Ultrasonic signal quality, 3 = best | Read |
| MV 1 | Meter Status | Meter status; 1 = Normal, 11 = System Fault | Read |
Network setup
- BACnet MS/TP on terminal block TB4, 2-wire half duplex, 1/4 unit load.
- MAC address 1-255, default 17. Device instance default 57017.
- Baud 9600, 19200, 38400 or 76800; default 38400. 120 ohm termination optional, default off; no biasing.
- Protocol, address, instance and baud are set in the meter's commissioning menu.
Watch out for
- The energy-related objects exist but hold no data on the F-4600.
- Auxiliary pulse inputs (AV 15-17) depend on the I/O option in the model number.
ONICON F-4600 Inline Ultrasonic Flow Meter (LCD) 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 | |||||
|---|---|---|---|---|---|---|
| AI | 1 | Energy rate | (Not used) | Read | ||
| AImin | 2 | Volume rate | gpm | Read | ||
| AImin | 3 | Supply internal temperature | Fluid temperature from the meter | °F | Read | |
| AI | 4 | Return temperature | (Not used) | Read | ||
| AI | 5 | Delta temperature | (Not used) | Read | ||
| AI | 6 | Signal strength | Ultrasonic signal strength, 0-100 counts | Read | ||
| AImin | 7 | Signal quality | 3-31 counts, 3 = best | Read | ||
| AI | 8 | Speed of sound | Measured speed of sound in the fluid | ft/s | Read | |
| AI | 9 | Peak energy rate | (Not used) | Read | ||
| AI | 10 | Average delta temp | (Not used) | Read | ||
| AV | 1 | Mode 1 energy total | (Not used) Single mode: Energy total | Read | ||
| AV | 2 | Mode 2 energy total | (Not used) Single mode: Energy total | Read | ||
| AV | 3 | Y-T-D mode 1 energy total | (Not used) Single mode: Y-T-D energy total | Read | ||
| AV | 4 | Y-T-D mode 2 energy total | (Not used) Single mode: Y-T-D energy total | Read | ||
| AV | 5 | Previous year mode 1 energy total | (Not used) Single mode: Previous year energy total | Read | ||
| AV | 6 | Previous year mode 2 energy total | (Not used) Single mode: Previous year energy total | Read | ||
| AV | 7 | User mode 1 energy total | (Not used) Single mode: User defined energy total | Read | ||
| AV | 8 | User mode 2 energy total | (Not used) Single mode: User defined energy total | Read | ||
| AVmin | 9 | Mode 1 volume total | Single mode: Volume total | gal | Read | |
| AV | 10 | Mode 2 volume total | Single mode: Volume total | gal | Read | |
| AV | 11 | Y-T-D mode 1 volume total | Single mode: Y-T-D volume total | gal | Read | |
| AV | 12 | Y-T-D mode 2 volume total | Single mode: Y-T-D volume total | gal | Read | |
| AV | 13 | User mode 1 volume total | Single mode: User defined volume total | gal | Read | |
| AV | 14 | User mode 2 volume total | Single mode: User defined volume total | gal | Read | |
| AV | 15 | Aux pulse input 1 total | Single mode: Aux pulse input 1 total | Read | ||
| AV | 16 | Aux pulse input 2 total | Single mode: Aux pulse input 2 total | Read | ||
| AV | 17 | Aux pulse input 3 total | Single mode: Aux pulse input 3 total | Read | ||
| AV | 18 | Run hours | Single mode: Run hours | h | Read | |
| AV | 19 | Incremental energy total mode 1 | (Not used) Single mode: Incremental energy total | Read | ||
| AV | 20 | Incremental energy total mode 2 | (Not used) Single mode: Incremental energy total | Read | ||
| AV | 21 | Incremental volume total mode 1 | Single mode: Incremental volume total | gal | Read | |
| AV | 22 | Incremental volume total mode 2 | Single mode: Incremental volume total | gal | Read | |
| AV | 23 | Previous year mode 1 volume total | Single mode: Previous year volume total | gal | Read | |
| AV | 24 | Previous year mode 2 volume total | Single mode: Previous year volume total | gal | Read | |
| BV | 1 | Mode indication | (Not used) Active mode | Read | 0=Mode 1, 1=Mode 2 | |
| BV | 2 | Location | (Not used) Sensor location | Read | 0=Supply, 1=Return | |
| BV | 3 | User defined energy total reset, mode 1 | (Not used) Write 1 to reset this total | Write | 1 = reset total | |
| BV | 4 | User defined energy total reset, mode 2 | (Not used) Write 1 to reset this total | Write | 1 = reset total | |
| BV | 5 | User defined volume total reset, mode 1 | Write 1 to reset this total | Write | 1 = reset total | |
| BV | 6 | User defined volume total reset, mode 2 | Write 1 to reset this total | Write | 1 = reset total | |
| BV | 7 | Aux input 1 total reset | Write 1 to reset this total | Write | 1 = reset total | |
| BV | 8 | Aux input 2 total reset | Write 1 to reset this total | Write | 1 = reset total | |
| BV | 9 | Aux input 3 total reset | Write 1 to reset this total | Write | 1 = reset total | |
| BVmin | 10 | Flow direction | Reverse flow flag | Read | 1=Reverse flow | |
| MVmin | 1 | Meter Status | Operating status of the meter | Read | 1=Normal, 2=Low Supply Temperature, 3=High Supply Temperature, 4=Low Return Temperature, 5=High Return Temperature, 6=Delta T < Minimum, 7=High Energy Rate, 8=Low Signal Quality, 9=Comm error, 10=Low Supply Voltage, 11=System Fault | |
| TL | 1 | Log Data | Trend log multiple, 120 records | Read |
No points match these filters.
Object ID lookup: ONICON F-4600 Inline Ultrasonic Flow Meter point IDs by name
AI1Energy rateAI2Volume rateAI3Supply internal temperatureAI4Return temperatureAI5Delta temperatureAI6Signal strengthAI7Signal qualityAI8Speed of soundAI9Peak energy rateAI10Average delta tempAV1Mode 1 energy totalAV2Mode 2 energy totalAV3Y-T-D mode 1 energy totalAV4Y-T-D mode 2 energy totalAV5Previous year mode 1 energy totalAV6Previous year mode 2 energy totalAV7User mode 1 energy totalAV8User mode 2 energy totalAV9Mode 1 volume totalAV10Mode 2 volume totalAV11Y-T-D mode 1 volume totalAV12Y-T-D mode 2 volume totalAV13User mode 1 volume totalAV14User mode 2 volume totalAV15Aux pulse input 1 totalAV16Aux pulse input 2 totalAV17Aux pulse input 3 totalAV18Run hoursAV19Incremental energy total mode 1AV20Incremental energy total mode 2AV21Incremental volume total mode 1AV22Incremental volume total mode 2AV23Previous year mode 1 volume totalAV24Previous year mode 2 volume totalBV1Mode indicationBV2LocationBV3User defined energy total reset, mode 1BV4User defined energy total reset, mode 2BV5User defined volume total reset, mode 1BV6User defined volume total reset, mode 2BV7Aux input 1 total resetBV8Aux input 2 total resetBV9Aux input 3 total resetBV10Flow directionMV1Meter StatusTL1Log Data
Integration notes
- Objects marked "(Not used)" in the manual are kept in the list with that note; they belong to the shared BTU meter layout.
- Names are the dual mode function text from the manual; Object_Name itself is not printed. The description gives the single mode meaning.
- The protocol statement and device Object_List say AV 1-22, but the analog value table prints AV 1-24; all printed rows are listed.
- Units are factory defaults: flow gpm, l/s, ft3/m or m3/h; volume gallons, liters, ft3 or m3; temperature °F or °C; speed of sound ft/s or m/s. Energy units are listed as not available.
- There is no per-object read/write column. The reset BVs are marked W because writing 1 resets the total.
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-4600 Inline Ultrasonic Flow Meter (LCD) 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-4600 Inline Ultrasonic Flow Meter (LCD)
How many BACnet points does the ONICON F-4600 Inline Ultrasonic Flow Meter (LCD) have?
This list has 46 BACnet objects: 10 analog inputs, 24 analog values, 10 binary values, 1 multi-state value, 1 trend log. The exact set on a given unit depends on its firmware, installed options and configuration.
Which ONICON F-4600 Inline Ultrasonic Flow Meter (LCD) BACnet points are writable?
7 of the 46 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 ONICON F-4600 Inline Ultrasonic Flow Meter (LCD) BACnet documentation?
The source is F-4600 with LCD Flow Meter Manual (DOC-0003880), revision Rev.D, published free by ONICON at https://www.onicon.com/wp-content/uploads/2024/07/F-4600-LCD-Inline-Ultrasonic-Flow-Meter-Manual-DOC-0003880.pdf.
What are the minimum BACnet points to integrate the ONICON F-4600 Inline Ultrasonic Flow Meter (LCD)?
Start with AI 2 Volume rate (Flow rate, gpm by default); AV 9 Mode 1 volume total (Volume total, gallons by default); AI 3 Supply internal temperature (Fluid temperature measured by the meter); BV 10 Flow direction (Reverse flow flag); AI 7 Signal quality (Ultrasonic signal quality, 3 = best); MV 1 Meter Status (Meter status; 1 = Normal, 11 = System Fault).
How do I check these points on the real F-4600 Inline Ultrasonic Flow Meter (LCD)?
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)
ONICON F-1500 insertion turbine flow meter (BACnet MS/TP)
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 - 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 - 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-4600 with LCD Flow Meter Manual · DOC-0003880 · rev. Rev.D. Object names, instances and units are reproduced as published; descriptions are our own.