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VRF / split air conditioner BACnet gateway (1 indoor unit or group) · BACnet points list

Intesis IN485MHI001R000 (Mitsubishi Heavy Industries gateway, BACnet MS/TP) BACnet points list

Updated 6 November 2026

Short answer

BACnet MS/TP-only Intesis interface for one Mitsubishi Heavy Industries indoor unit, connected anywhere on the X-Y remote-controller bus. It exposes 35 fixed objects: on/off, mode, setpoint, fan and up/down vane as _command/_status pairs, error code, error and filter resets, occupancy logic, a remote lock, outdoor temperature, the Center/Remote control state and a virtual-temperature function.

This page lists 35 BACnet objects for the Intesis IN485MHI001R000 (Mitsubishi Heavy Industries gateway, BACnet MS/TP) — 17 of them writable — with each object’s type, instance number, name, engineering units and access. It is re-typed from Intesis’s own free documentation, linked below.

Manufacturer
Intesis
Model
IN485MHI001R000 (Mitsubishi Heavy Industries gateway, BACnet MS/TP)
Equipment
VRF / split air conditioner BACnet gateway (1 indoor unit or group)
Equipment type
VRF & split air conditioners
BACnet objects
35 (17 writable)
Transport
BACnet MS/TP
Firmware
Not stated
Default device instance
246000
Also known as
IN485MHI001R000, INBACMHI001R100 (legacy code), MHI BACnet MS/TP gateway, Mitsubishi Heavy BACnet, MHI VRF BACnet, Intesis MHI MS/TP
Brands covered
Mitsubishi Heavy Industries
Source document
IN485MHI001R000 Gateway - Mitsubishi Heavy Industries Residential and VRF Systems to BACnet MS/TP - User Manual · rev. 2025-02-11 v1.0.8
Download CSV 35 rows Download EDE B.I.G.-EU JSON Manufacturer PDF ↗ Compare with your scan Download Easy BACnet Mobile App Google Play

Reference only, provided as-is: verify against Intesis’s current documentation and the live device before use. Not official Intesis information. Terms of use.

BMS integration notes: Intesis IN485MHI001R000 (Mitsubishi Heavy Industries gateway, BACnet MS/TP)

Integration in brief

Connect the gateway anywhere on the X-Y bus (no polarity), set the MS/TP MAC address on SW2 and the bus role on SW1-1, then write the _command objects (on/off, mode, setpoint, fan) and read back the _status objects. Units grouped on one remote bus act as one.

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.

ObjectNameWhyAccess
BO 0OnOff_commandStart/stop the indoor unitCommand
MO 0Mode_commandHeat/cool/fan/dry/auto selectionCommand
AO 0SetPoint_commandTemperature setpoint from the BMSCommand
MO 1FanSpeed_commandFan speed selectionCommand
BI 0OnOff_statusConfirm the unit is runningRead
AI 0SetPoint_statusSetpoint the unit is really usingRead
AI 1RoomTemperature_statusRoom/return temperature for trendingRead
BI 1ErrorActiveUnit alarmRead
AI 2ErrorCodeWhich fault is activeRead

Enable & remote start

No enable point is documented; the gateway accepts commands once it talks to the unit. MI 9 CenterRemote shows whether the BMS, the wired remote or both may control the unit; BV 2 LockRemoteControl locks the remote.

Sensors & values from the BMS

With the gateway as X-Y header (SW1-1 on), reading temperature from the remote (SW1-2 on) and the unit set to use the remote's sensor, the value written to AO 1 RoomTemperature_command becomes the unit's reference temperature; until a valid value is written the unit may show a thermistor error. Otherwise the Virtual Temperature function recalculates the setpoint from AO 1 (BI 14 shows it is active, AI 17 the BMS setpoint).

Network setup

Watch out for

Intesis IN485MHI001R000 (Mitsubishi Heavy Industries gateway, 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.

35 of 35 shown
Type
Access
Show
Intesis IN485MHI001R000 (Mitsubishi Heavy Industries gateway, BACnet MS/TP) BACnet Points List
DescriptionStates
BImin0OnOff_statusUnit on/off statusRead0=Off, 1=On
BOmin0OnOff_commandStart/stop the indoor unitCommand0=Off, 1=On
MI0Mode_statusOperating mode in useRead1=Heat, 2=Cool, 3=Fan, 4=Dry, 5=Auto, 6=AutoHeat, 7=AutoCool
MOmin0Mode_commandOperating mode commandCommand1=Heat, 2=Cool, 3=Fan, 4=Dry, 5=Auto
AImin0SetPoint_statusSetpoint the indoor unit is using°CRead
AI17User_Setpoint_statusBMS setpoint while virtual temperature is activeRead
AOmin0SetPoint_commandTemperature setpoint from the BMS°CCommand
BI14VirtualTempActiveVirtual temperature function in useRead0=No, 1=Yes
MI1FanSpeed_statusCurrent fan speedRead1=Auto, 2=Fan Speed 1, 3=Fan Speed 2, 4=Fan Speed 3, 5=Fan Speed 4
MOmin1FanSpeed_commandFan speed commandCommand1=Auto, 2=Fan Speed 1, 3=Fan Speed 2, 4=Fan Speed 3, 5=Fan Speed 4
MI2AirDirectionUD_statusUp/down vane positionRead1=Pos1, 2=Pos2, 3=Pos3, 4=Pos4, 5=Swing
MO2AirDirectionUD_commandUp/down vane commandCommand1=Pos1, 2=Pos2, 3=Pos3, 4=Pos4, 5=Swing
AImin1RoomTemperature_statusRoom temperature used by the unit°CRead
AO1RoomTemperature_commandRoom temperature written by the BMS°CCommand
AImin2ErrorCodeActive error code (number)Read
MI4ErrorCodeMActive error code (multistate)Read92 states; MHI error code table in the manual
BImin1ErrorActiveAn error is activeRead0=No, 1=Error
AI4ErrorAddressAddress of the indoor unit reporting the errorRead
BO5ErrorResetReset the active errorCommand0=Normal, 1=Reset
AV0OnTimeCounterRun-hours counterhWrite
BI6FilterSignFilter dirty signalRead0=OK, 1=Dirty
BO4FilterResetReset the filter signalCommand0=Normal, 1=Reset
MV0OccupancyOccupancy input for built-in occupancy logicWrite1=Occupied, 2=Unoccupied, 3=Disabled
AV1OccupiedCoolSetPointCooling setpoint when occupied°CWrite
AV2OccupiedHeatSetPointHeating setpoint when occupied°CWrite
AV3UnoccupiedCoolSetPointCooling setpoint when unoccupied°CWrite
AV4UnoccupiedHeatSetPointHeating setpoint when unoccupied°CWrite
BV0OccupancyContinuousCheckRe-run occupancy logic on temperature changeWrite0=Disabled, 1=Enabled
BV1UnoccupiedDeadbandActionUnoccupied action inside the deadbandWrite0=Off, 1=CurrentMode
BV2LockRemoteControlLock the wired remote controllerWrite0=Unlocked, 1=Locked
AI8OutdoorTemp_statusOutdoor temperature from the outdoor unit°CRead
MI9CenterRemoteWhich side may control the unit (BMS and/or remote)Read1=Remote Enabled (Center/Remote), 2=Remote ON/OFF Lock (Center I), 3=Remote ALL Lock (Center II), 4=Just Remote (Remote)
AI9DIP_SW_S1_statusDIP switch SW1 value (decimal)Read
AI10DIP_SW_S2_statusDIP switch SW2 value (decimal)Read
AI11SerialNumberGateway serial numberRead
Object ID lookup: Intesis MHI Gateway IN485MHI001R000 point IDs by name

Integration notes

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 IN485MHI001R000 (Mitsubishi Heavy Industries gateway, 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 Intesis IN485MHI001R000 (Mitsubishi Heavy Industries gateway, BACnet MS/TP)

How many BACnet points does the Intesis IN485MHI001R000 (Mitsubishi Heavy Industries gateway, BACnet MS/TP) have?

This list has 35 BACnet objects: 9 analog inputs, 2 analog outputs, 5 analog values, 4 binary inputs, 3 binary outputs, 3 binary values, 5 multi-state inputs, 3 multi-state outputs, 1 multi-state value. The exact set on a given unit depends on its firmware, installed options and configuration.

Which Intesis IN485MHI001R000 (Mitsubishi Heavy Industries gateway, BACnet MS/TP) BACnet points are writable?

17 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 Intesis IN485MHI001R000 (Mitsubishi Heavy Industries gateway, BACnet MS/TP) BACnet documentation?

The source is IN485MHI001R000 Gateway - Mitsubishi Heavy Industries Residential and VRF Systems to BACnet MS/TP - User Manual, revision 2025-02-11 v1.0.8, published free by Intesis at https://www.hms-networks.com/docs/default-source/products/intesis/manuals-and-guides---manuals/user_manual_in485mhi001r000.pdf.

What are the minimum BACnet points to integrate the Intesis IN485MHI001R000 (Mitsubishi Heavy Industries gateway, BACnet MS/TP)?

Start with BO 0 OnOff_command (Start/stop the indoor unit); MO 0 Mode_command (Heat/cool/fan/dry/auto selection); AO 0 SetPoint_command (Temperature setpoint from the BMS); MO 1 FanSpeed_command (Fan speed selection); BI 0 OnOff_status (Confirm the unit is running); AI 0 SetPoint_status (Setpoint the unit is really using); AI 1 RoomTemperature_status (Room/return temperature for trending); BI 1 ErrorActive (Unit alarm); AI 2 ErrorCode (Which fault is active).

How do I enable BMS control of the Intesis IN485MHI001R000 (Mitsubishi Heavy Industries gateway, BACnet MS/TP)?

No enable point is documented; the gateway accepts commands once it talks to the unit. MI 9 CenterRemote shows whether the BMS, the wired remote or both may control the unit; BV 2 LockRemoteControl locks the remote.

Can the BMS supply sensor values to the Intesis IN485MHI001R000 (Mitsubishi Heavy Industries gateway, BACnet MS/TP)?

With the gateway as X-Y header (SW1-1 on), reading temperature from the remote (SW1-2 on) and the unit set to use the remote's sensor, the value written to AO 1 RoomTemperature_command becomes the unit's reference temperature; until a valid value is written the unit may show a thermistor error. Otherwise the Virtual Temperature function recalculates the setpoint from AO 1 (BI 14 shows it is active, AI 17 the BMS setpoint).

How do I check these points on the real IN485MHI001R000 (Mitsubishi Heavy Industries gateway, 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 Intesis BACnet points lists

Source: IN485MHI001R000 Gateway - Mitsubishi Heavy Industries Residential and VRF Systems to BACnet MS/TP - User Manual · rev. 2025-02-11 v1.0.8. Object names, instances and units are reproduced as published; descriptions are our own.