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Split air conditioner BACnet gateway (1 indoor unit) · BACnet points list

Intesis IN485SAM001R000 (Samsung NASA gateway, BACnet MS/TP) BACnet points list

Updated 4 November 2026

Short answer

Intesis interface for one Samsung NASA indoor unit (or a group of units that act as one) on the F3/F4 bus, with BACnet MS/TP or Modbus RTU selected on a DIP switch. It exposes 41 fixed objects: on/off, mode, setpoint, fan and vane commands with matching status objects, error and filter signals, WindFree and air-clean modes, Cassette 360 airflow and a dual-setpoint (DSP) function.

This page lists 41 BACnet objects for the Intesis IN485SAM001R000 (Samsung NASA gateway, BACnet MS/TP) — 16 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
IN485SAM001R000 (Samsung NASA gateway, BACnet MS/TP)
Equipment
Split air conditioner BACnet gateway (1 indoor unit)
Equipment type
VRF & split air conditioners
BACnet objects
41 (16 writable)
Transport
BACnet MS/TP
Firmware
Not stated
Default device instance
246000
Also known as
IN485SAM001R000, Samsung NASA BACnet gateway, Samsung F3/F4 BACnet, Samsung BACnet MS/TP, Samsung WindFree BACnet, Intesis Samsung MS/TP
Brands covered
Samsung
Source document
IN485SAM001R000 User Manual - Samsung NASA Systems to BACnet MS/TP and Modbus RTU · rev. 2026-03-11 v1.0.0
Download CSV 41 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 IN485SAM001R000 (Samsung NASA gateway, BACnet MS/TP)

Integration in brief

Wire the gateway to the Samsung F3/F4 bus, leave SW1 position 5 OFF for BACnet MS/TP, set the MAC address on SW2, then write the _command objects and read back the _status objects. Several indoor units on one gateway behave as one unit.

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 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. BV 2 LockRemoteControl can lock the wired remote.

Sensors & values from the BMS

To use a BMS room sensor, write its value to AO 1 RoomTemperature_command; the unit then uses it as its reference temperature. Only write it when a BMS sensor is meant to replace the unit's own reading, and write 0x8000 to stop using it.

Network setup

Watch out for

Intesis IN485SAM001R000 (Samsung NASA 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.

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.

41 of 41 shown
Type
Access
Show
Intesis IN485SAM001R000 (Samsung NASA gateway, BACnet MS/TP) BACnet Points List
DescriptionStates
BImin0OnOff_statusUnit on/off statusRead1=Off, 2=On
BOmin0OnOff_commandStart/stop the indoor unitCommand1=Off, 2=On
MI0Mode_statusOperating mode in useRead1=Heat, 2=Cool, 3=Fan, 4=Dry, 5=Auto
MOmin0Mode_commandOperating mode commandCommand1=Heat, 2=Cool, 3=Fan, 4=Dry, 5=Auto
AImin0SetPoint_statusSetpoint the indoor unit is using°CRead
AOmin0SetPoint_commandTemperature setpoint from the BMS°CCommand
AI17UserSetPoint_statusUser setpoint as reported by the gateway°CRead
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=Auto/Stop, 2=Swing
MO2AirDirectionUD_commandUp/down vane commandCommand1=Auto/Stop, 2=Swing
MI3AirDirectionLR_statusLeft/right vane positionRead1=Auto/Stop, 2=Swing
MO3AirDirectionLR_commandLeft/right vane commandCommand1=Auto/Stop, 2=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)Read
BImin1ErrorActiveAn error is activeRead1=No error, 2=Error
AI4ErrorAddressAddress of the indoor unit with the errorRead
AV0OnTimeCounterRun-hours counterhWrite
BI6FilterSignFilter-clean indicationRead1=No, 2=Yes
AI18FilterSignAddressAddress of the unit showing the filter signRead
BO4FilterResetReset the filter signCommand1=Normal, 2=Reset
BV2LockRemoteControlLock the wired remote controllerWrite1=Unlocked, 2=Locked
AI9DIP_SW_S1_statusDIP switch SW1 value (decimal)Read
AI10DIP_SW_S2_statusDIP switch SW2 value (decimal)Read
AI11SerialNumberGateway serial numberRead
AI19Number_of_IU_connectedIndoor units found on the RC busRead
AI20IU_Address_status_reportedAddress of the indoor unit being reportedRead
AV7IU_Pos_status_reportedPosition of the reported unit in the internal listRead
BI16WindFree_mode_statusWindFree mode statusRead1=Off, 2=On
BO13WindFree_mode_commandWindFree mode commandCommand1=Off, 2=On
BI17AirClean_mode_statusAir clean mode statusRead1=Off, 2=On
BO14AirClean_mode_commandAir clean mode commandCommand1=Off, 2=On
MI12360_CST_AirFlow_Direction_statusCassette 360 airflow patternRead1=Spot, 2=Mid, 3=Wide, 4=Swing, 5=Other
MO8360_CST_AirFlow_Direction_commandCassette 360 airflow pattern commandCommand1=Spot, 2=Mid, 3=Wide, 4=Swing, 5=Other
BV5DualSetpoint_activeDual setpoint function on/offWrite1=Dual setpoint not active, 2=Dual setpoint active
AI21DualSetpoint_Heat_Temperature_statusDual setpoint heating value°CRead
AO3DualSetpoint_Heat_Temperature_commandDual setpoint heating command°CCommand
AI22DualSetpoint_Cool_Temperature_statusDual setpoint cooling value°CRead
AO4DualSetpoint_Cool_Temperature_commandDual setpoint cooling command°CCommand
Object ID lookup: Intesis Samsung Gateway IN485SAM001R000 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 IN485SAM001R000 (Samsung NASA 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 IN485SAM001R000 (Samsung NASA gateway, BACnet MS/TP)

How many BACnet points does the Intesis IN485SAM001R000 (Samsung NASA gateway, BACnet MS/TP) have?

This list has 41 BACnet objects: 13 analog inputs, 4 analog outputs, 2 analog values, 5 binary inputs, 4 binary outputs, 2 binary values, 6 multi-state inputs, 5 multi-state outputs. The exact set on a given unit depends on its firmware, installed options and configuration.

Which Intesis IN485SAM001R000 (Samsung NASA gateway, BACnet MS/TP) BACnet points are writable?

16 of the 41 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 Intesis IN485SAM001R000 (Samsung NASA gateway, BACnet MS/TP) BACnet documentation?

The source is IN485SAM001R000 User Manual - Samsung NASA Systems to BACnet MS/TP and Modbus RTU, revision 2026-03-11 v1.0.0, published free by Intesis at https://www.hms-networks.com/docs/default-source/products/intesis/manuals-and-guides---manuals/user-manual-in485sam001r000.pdf.

What are the minimum BACnet points to integrate the Intesis IN485SAM001R000 (Samsung NASA gateway, BACnet MS/TP)?

Start with BO 0 OnOff_command (Start/stop the 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 IN485SAM001R000 (Samsung NASA gateway, BACnet MS/TP)?

No enable point is documented. BV 2 LockRemoteControl can lock the wired remote.

Can the BMS supply sensor values to the Intesis IN485SAM001R000 (Samsung NASA gateway, BACnet MS/TP)?

To use a BMS room sensor, write its value to AO 1 RoomTemperature_command; the unit then uses it as its reference temperature. Only write it when a BMS sensor is meant to replace the unit's own reading, and write 0x8000 to stop using it.

How do I check these points on the real IN485SAM001R000 (Samsung NASA 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: IN485SAM001R000 User Manual - Samsung NASA Systems to BACnet MS/TP and Modbus RTU · rev. 2026-03-11 v1.0.0. Object names, instances and units are reproduced as published; descriptions are our own.