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VRF outdoor unit monitoring via BACnet gateway · BACnet points list

CoolAutomation CoolMasterNet Daikin VRV outdoor unit (PRO) objects - VRV-M (REYQ8-48M) BACnet points list

Updated 11 November 2026

Short answer

With PRO functionality, CoolAutomation gateways publish service data from each Daikin VRV outdoor unit over BACnet: ambient, suction, evaporating, condensing and discharge temperatures, EV openings, CT and inverter currents, fan step, compressor, heater and valve states, and protection-control flags such as retries and stepping-down or drooping control (59 objects for this series group). Monitoring only.

This page lists 59 BACnet objects for the CoolAutomation CoolMasterNet Daikin VRV outdoor unit (PRO) objects - VRV-M (REYQ8-48M) — 0 of them writable — with each object’s type, instance number, name, engineering units and access. It is re-typed from CoolAutomation’s own free documentation, linked below.

Manufacturer
CoolAutomation
Model
CoolMasterNet Daikin VRV outdoor unit (PRO) objects - VRV-M (REYQ8-48M)
Equipment
VRF outdoor unit monitoring via BACnet gateway
Equipment type
VRF & split air conditioners
BACnet objects
59 (0 writable)
Transport
BACnet IP, BACnet MS/TP
Firmware
Not stated
Default device instance
64
Also known as
Daikin VRV BACnet, CoolMasterNet Daikin, Daikin outdoor unit BACnet, VRV-M (REYQ8-48M)
Brands covered
Daikin
Source document
BACnet Integration Guidelines - CoolMasterNet, CooLinkNet, CooLinkHub, CooLinkBridge · rev. Rev 0.5, 2019-04-29
Download CSV 59 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 CoolAutomation’s current documentation and the live device before use. Not official CoolAutomation information. Terms of use.

BMS integration notes: CoolAutomation CoolMasterNet Daikin VRV outdoor unit (PRO) objects - VRV-M (REYQ8-48M)

Integration in brief

Use these objects to monitor Daikin outdoor equipment only; control stays on the CoolMasterNet indoor-unit objects. Map the outdoor block's VA and trend the key temperatures, compressor data and error state.

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
BI 277Comp1InvInverter compressor runningRead
BI 295DfrstDefrost activeRead
IV 258AmbTAmbient temperature, °CRead
IV 260EvTEvaporating temperature, °CRead
IV 261CndTCondensing temperature, °CRead
PIV 312InvFrqInverter frequency, HzRead
PIV 275InvCurInverter current, ARead
BI 288ErrStateUnit error stateRead

Enable & remote start

BACnet must be enabled on the gateway; these objects belong to its PRO (service data) functionality.

Network setup

Watch out for

CoolAutomation CoolMasterNet Daikin VRV outdoor unit (PRO) objects - VRV-M (REYQ8-48M) 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.

59 of 59 shown
Type
Binary
Show
CoolAutomation CoolMasterNet Daikin VRV outdoor unit (PRO) objects - VRV-M (REYQ8-48M) BACnet Points List
DescriptionStates
PIV256AirNetAirNet Addr.Read
PIV257HPHPhpRead
IVmin258AmbTAmbient temperature°CRead
IV259SuctTSuction Temperature°CRead
IVmin260EvTEvaporating Temperature°CRead
IVmin261CndTCondensing Temperature°CRead
PIV262EVOp1EV opening 1pulsesRead
PIV263EVOp2EV opening 2pulsesRead
PIV264EVOp3EV opening 3pulsesRead
PIV265CTSTD1CT1 (STD1)ARead
PIV266CTSTD2CT2 (STD2)ARead
PIV267FanStpFan stepRead
IV268CilTR4T :Coil temp.°CRead
IV269ScCilExtTSubcooling Coil exit Temp.°CRead
PIV270DschTInvDisch. temp.(INV)°CRead
PIV271DschTStd1Disch. temp.(STD1)°CRead
PIV272DschTStd2Disch. temp.(STD2)°CRead
IV273RcvrLiqTReceiver Liquid Temp.°CRead
PIV274InvTInverter temp.°CRead
PIVmin275InvCurInverter currentARead
PIV276InvFanCurINV FAN currentARead
BImin277Comp1InvCompressor1(INV)Read
BI278Comp2Std1Compressor2(STD1)Read
BI279Comp3Std2Compressor3(STD2)Read
BI280OiRtrnOil returnRead
BI281HotGasHot GasRead
BI282CcH1CH1:Crankcase HeaterRead
BI283CcH2CH2:Crankcase HeaterRead
BI284CcH3CH3:Crankcase HeaterRead
BI285SoftStrtSoft startRead
BI286ResrtStbyRestart stand-byRead
BI287MulOiMulti oilRead
BImin288ErrStateUnit Error statRead
BI289EnrgyCutOutpEnergy cut outputRead
BI290HiPRtryHigh pressure retryRead
BI291LoPRtryLow pressure retryRead
BI292DischPipRtryDisch. pipe retryRead
BI2934WayVlv14-way valve 1Read
BI2944WayVlv24-way valve 2Read
BImin295DfrstDefrostRead
BI296HiPDroCtlHigh pres. drooping cntl.Read
BI297LoPDroCtlLow pres. drooping cntl.Read
BI298InvDschDroCtlINV Disch. pipe drooping cntl.Read
BI299InvCurDroCtlINV current drooping cntl.Read
BI300InvFinDroCtlINV fin drooping cntl.Read
BI301Std1DschDroCtlINV fin drooping cntl.Read
BI302Std1OCDroCtlINV fin drooping cntl.Read
BI303Std2DschDroCtlINV fin drooping cntl.Read
BI304Std2OCDroCtlINV fin drooping cntl.Read
BI305InvStbyINV stand-byRead
BI306RcvrGasInSVL:Receiver gas inRead
BI307RcvrGasOutSVG:Receiver gas outRead
BI308StpUnGasOutSVSG:StopUnit Gas outRead
BI309StpUnLiqPipClsSVSL:StopUnit Liquid pipe closeRead
BI310HiPRduVlvY7S:High pressure reducing valveRead
IV311OiPEqTOil Pres. equalizer Temp.°CRead
PIVmin312InvFrqInverter frequencyHzRead
IV313CilGas1TR81T:Coil gas 1 temp.°CRead
IV314CilGas2TR81T:Coil gas 2 temp.°CRead
Object ID lookup: CoolAutomation Daikin ODU REYQ8-48M 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 CoolMasterNet Daikin VRV outdoor unit (PRO) objects - VRV-M (REYQ8-48M) 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 CoolAutomation CoolMasterNet Daikin VRV outdoor unit (PRO) objects - VRV-M (REYQ8-48M)

How many BACnet points does the CoolAutomation CoolMasterNet Daikin VRV outdoor unit (PRO) objects - VRV-M (REYQ8-48M) have?

This list has 59 BACnet objects: 34 binary inputs, 10 integer values, 15 positive integer values. The exact set on a given unit depends on its firmware, installed options and configuration.

Which CoolAutomation CoolMasterNet Daikin VRV outdoor unit (PRO) objects - VRV-M (REYQ8-48M) BACnet points are writable?

None of the listed objects are marked writable in the source documentation. The source has no read/write column, so this is inferred from object type.

Where is the official CoolAutomation CoolMasterNet Daikin VRV outdoor unit (PRO) objects - VRV-M (REYQ8-48M) BACnet documentation?

The source is BACnet Integration Guidelines - CoolMasterNet, CooLinkNet, CooLinkHub, CooLinkBridge, revision Rev 0.5, 2019-04-29, published free by CoolAutomation at https://coolautomation.com/Lib/doc/CoolMasterNet/manual/CoolMasterNet-BACnet-guidelines.pdf.

What are the minimum BACnet points to integrate the CoolAutomation CoolMasterNet Daikin VRV outdoor unit (PRO) objects - VRV-M (REYQ8-48M)?

Start with BI 277 Comp1Inv (Inverter compressor running); BI 295 Dfrst (Defrost active); IV 258 AmbT (Ambient temperature, °C); IV 260 EvT (Evaporating temperature, °C); IV 261 CndT (Condensing temperature, °C); PIV 312 InvFrq (Inverter frequency, Hz); PIV 275 InvCur (Inverter current, A); BI 288 ErrState (Unit error state).

How do I enable BMS control of the CoolAutomation CoolMasterNet Daikin VRV outdoor unit (PRO) objects - VRV-M (REYQ8-48M)?

BACnet must be enabled on the gateway; these objects belong to its PRO (service data) functionality.

How do I check these points on the real CoolMasterNet Daikin VRV outdoor unit (PRO) objects - VRV-M (REYQ8-48M)?

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 CoolAutomation BACnet points lists

Source: BACnet Integration Guidelines - CoolMasterNet, CooLinkNet, CooLinkHub, CooLinkBridge · rev. Rev 0.5, 2019-04-29. Object names, instances and units are reproduced as published; descriptions are our own.