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VRF outdoor unit monitoring via BACnet gateway · BACnet points list

CoolAutomation CoolMasterNet Mitsubishi Electric PUHY-M YNW-A1 outdoor unit (PRO) objects BACnet points list

Updated 12 November 2026

Short answer

With PRO functionality, CoolAutomation gateways publish service data from Mitsubishi Electric City Multi PUHY-M YNW-A1 outdoor units over BACnet: type, control and operation mode, compressor and fan frequencies, total cooling and heating capacity, LEV positions, compressor currents and bus voltage, 63HS/63LS pressures, thermistor, condensing and evaporating temperatures, operation status and OC/OS attribute, plus subcooling and superheat values and current, maintenance and preliminary error codes (76 objects). Monitoring only.

This page lists 76 BACnet objects for the CoolAutomation CoolMasterNet Mitsubishi Electric PUHY-M YNW-A1 outdoor unit (PRO) objects — 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 Mitsubishi Electric PUHY-M YNW-A1 outdoor unit (PRO) objects
Equipment
VRF outdoor unit monitoring via BACnet gateway
Equipment type
VRF & split air conditioners
BACnet objects
76 (0 writable)
Transport
BACnet IP, BACnet MS/TP
Firmware
Not stated
Default device instance
64
Also known as
Mitsubishi City Multi BACnet, CoolMasterNet Mitsubishi Electric, PUHY-M YNW-A1
Brands covered
Mitsubishi Electric
Source document
BACnet Integration Guidelines - CoolMaster Product Line, CooLinkNet, CooLinkHub, CooLinkBridge · rev. Rev 1.0.4, 2026-07-06
Download CSV 76 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 Mitsubishi Electric PUHY-M YNW-A1 outdoor unit (PRO) objects

Integration in brief

Use these objects to monitor Mitsubishi Electric equipment only; control stays on the CoolMasterNet indoor-unit objects. Map the block's VA and trend operation mode, compressor frequency, pressures and error codes.

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
PIV 258OpeMOperation mode codeRead
PIV 289OpeSOperation status codeRead
BI 327CompOnCompressor onRead
PIV 260F1Compressor 1 frequency, HzRead
AI 27863HS1High pressure, kg/cm2Read
AI 27963LSLow pressure, kg/cm2Read
AI 297TcCondensing temperature, °CRead
AI 298TeEvaporating temperature, °CRead
PIV 307ErrError codeRead

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 Mitsubishi Electric PUHY-M YNW-A1 outdoor unit (PRO) objects 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.

76 of 76 shown
Type
AnalogBinary
Show
CoolAutomation CoolMasterNet Mitsubishi Electric PUHY-M YNW-A1 outdoor unit (PRO) objects BACnet Points List
DescriptionStates
CSV256TypeOutdoor Unit Type NameRead
PIV257CtrlMControl ModeRead
PIVmin258OpeMOperation ModeRead
IV259F(Hz)All temporary frequenciesHzRead
PIVmin260F1Temporary frequency of No.1 COMPHzRead
PIV261FocTemporary frequencyHzRead
PIV262FANFan outputHzRead
IV263QjCTotal capacity CoolRead
IV264QjHTotal capacity HeatRead
PIV265LEV1LEV1 Linear expansion valveplsRead
PIV266LEV2aLEV2aplsRead
PIV267LEV4Linear expansion valveplsRead
AI268IdcDirect currentARead
AI269IuU-Phase current effective valueARead
AI270IwW-Phase current effective valueARead
PIV271ALALRead
AI272LALARead
PIV273FAN(rpm)FAN(rpm)rpmRead
PIV274FAN-FrFan1 run statusRead
IV275VdcBus voltageVRead
PIV276LEV2bLEV2bplsRead
PIV277LEV9LEV9plsRead
AImin27863HS163HS1 Pressure sensorkg/cm2Read
AImin27963LS63LS Pressure sensorkg/cm2Read
AI280TH2Thermistor 2°CRead
AI281TH3Thermistor 3°CRead
AI282TH4Thermistor 4°CRead
AI283TH5Thermistor 5°CRead
AI284TH6Inlet pipe temperature of the heat exchanger°CRead
AI285TH7Thermistor 7°CRead
AI286TH15Thermistor 15°CRead
AI287FAN-VerFan1 SW versionRead
PIV288SaveCapacity save signal%Read
PIVmin289OpeSOperation StatusRead
PIV290AttrAttribute (OC/OS identification)Read
PIV291M-NetSupUnM-NET supply unitRead
PIV292StrtUpUnStart-up unitRead
BI293AFActive FilterRead
AI294SCoHeat exchanger outlet subcooling°CRead
AI295SCcCoil outlet subcooling°CRead
AI296SHbCoil bypass outlet superheat°CRead
AImin297TcCondensing temperature°CRead
AImin298TeEvaporating temperature°CRead
AI299THHSThermistor 9°CRead
BI30021S4a21S4aRead
BI30121S4b21S4bRead
BI302SV1aSV1(A)/SV1aRead
BI303SV2SV2Read
BI304SV9SV9Read
BI305SV10SV10Read
IV306AKHeat exchanger capacityRead
PIVmin307ErrError codeRead
PIV308ErrDetError detail codeRead
PIV309ErrSrcError source addressRead
PIV310MntErrMaintenance error codeRead
PIV311MntErrDetMaintenance error detail codeRead
PIV312MntErrSrcMaintenance error source addressRead
PIV313PrelErrPreliminary error codeRead
PIV314PrelErrDetPreliminary error detail codeRead
PIV315PrelErrSrcPreliminary error source addressRead
AI316THHS(FAN1)THHS(FAN1)°CRead
BI317DmndDemandRead
BI318Dmnd2Demand2Read
BI319NgtNightRead
BI320Ngt2Night2Read
BI321SnowSnowRead
BI322PwrPower source frequencyRead
BI323WMWMRead
AI324RotTmRotation timerRead
BI325RepRepeater outputRead
BI32672C72CRead
BImin327CompOnComp ONRead
BI328M-NetSupM-NET supplyRead
BI329IHIHRead
BI330H-Def1H-Def1Read
BI331H-Def2H-Def2Read
Object ID lookup: CoolAutomation CoolMasterNet Mitsubishi Electric PUHY-M YNW-A1 outdoor unit (PRO) objects 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 Mitsubishi Electric PUHY-M YNW-A1 outdoor unit (PRO) objects 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 Mitsubishi Electric PUHY-M YNW-A1 outdoor unit (PRO) objects

How many BACnet points does the CoolAutomation CoolMasterNet Mitsubishi Electric PUHY-M YNW-A1 outdoor unit (PRO) objects have?

This list has 76 BACnet objects: 22 analog inputs, 21 binary inputs, 1 characterstring value, 5 integer values, 27 positive integer values. The exact set on a given unit depends on its firmware, installed options and configuration.

Which CoolAutomation CoolMasterNet Mitsubishi Electric PUHY-M YNW-A1 outdoor unit (PRO) objects 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 Mitsubishi Electric PUHY-M YNW-A1 outdoor unit (PRO) objects BACnet documentation?

The source is BACnet Integration Guidelines - CoolMaster Product Line, CooLinkNet, CooLinkHub, CooLinkBridge, revision Rev 1.0.4, 2026-07-06, published free by CoolAutomation at https://support.coolautomation.com/hc/en-us/article_attachments/38262832368157.

What are the minimum BACnet points to integrate the CoolAutomation CoolMasterNet Mitsubishi Electric PUHY-M YNW-A1 outdoor unit (PRO) objects?

Start with PIV 258 OpeM (Operation mode code); PIV 289 OpeS (Operation status code); BI 327 CompOn (Compressor on); PIV 260 F1 (Compressor 1 frequency, Hz); AI 278 63HS1 (High pressure, kg/cm2); AI 279 63LS (Low pressure, kg/cm2); AI 297 Tc (Condensing temperature, °C); AI 298 Te (Evaporating temperature, °C); PIV 307 Err (Error code).

How do I enable BMS control of the CoolAutomation CoolMasterNet Mitsubishi Electric PUHY-M YNW-A1 outdoor unit (PRO) objects?

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 Mitsubishi Electric PUHY-M YNW-A1 outdoor unit (PRO) objects?

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 - CoolMaster Product Line, CooLinkNet, CooLinkHub, CooLinkBridge · rev. Rev 1.0.4, 2026-07-06. Object names, instances and units are reproduced as published; descriptions are our own.