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VRF outdoor unit monitoring via BACnet gateway · BACnet points list

CoolAutomation CoolMasterNet Midea V8 master outdoor unit (PRO) objects BACnet points list

Updated 12 November 2026

Short answer

With PRO functionality, CoolAutomation gateways publish service data from Midea V8 master outdoor units over BACnet: mode, system temperature limits, special and backup modes, power limit and silent settings, error code, compressor frequencies and currents, fan speeds, EXV positions, temperatures T3-T9, high and low pressure, discharge superheat, AC voltage and current, software versions, model and valve states (85 objects). Monitoring only.

This page lists 85 BACnet objects for the CoolAutomation CoolMasterNet Midea V8 master 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 Midea V8 master outdoor unit (PRO) objects
Equipment
VRF outdoor unit monitoring via BACnet gateway
Equipment type
VRF & split air conditioners
BACnet objects
85 (0 writable)
Transport
BACnet IP, BACnet MS/TP
Firmware
Not stated
Default device instance
64
Also known as
Midea V8 VRF BACnet, CoolMasterNet Midea, V8 Master
Brands covered
Midea
Source document
BACnet Integration Guidelines - CoolMaster Product Line, CooLinkNet, CooLinkHub, CooLinkBridge · rev. Rev 1.0.4, 2026-07-06
Download CSV 85 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 Midea V8 master outdoor unit (PRO) objects

Integration in brief

Use these objects to monitor Midea outdoor equipment only; control stays on the CoolMasterNet indoor-unit objects. Map the master outdoor unit's VA and trend pressures, compressor frequency and error code.

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 257MdOperating mode codeRead
PIV 288ComFr1Compressor 1 frequency, HzRead
AI 303T4Outdoor ambient temperature, °CRead
AI 315HiPrsHigh pressure, MPaRead
AI 316LoPrsLow pressure, MPaRead
AI 313T7C1Discharge temperature 1, °CRead
CSV 286ErrError 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 Midea V8 master 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.

85 of 85 shown
Type
Analog
Show
CoolAutomation CoolMasterNet Midea V8 master outdoor unit (PRO) objects BACnet Points List
DescriptionStates
CSV256TypeOutdoor Unit Type NameRead
PIVmin257MdModeRead
PIV258SysFTSystem FTRead
AI259TeMinTeMin°CRead
AI260TcMaxTcMax°CRead
AI261TPMaxSystem Maximum Discharge temp°CRead
AI262T4MinT4Min°CRead
AI263DSHMinDSHMin°CRead
AI264SHSSHS°CRead
AI265SCSSCS°CRead
AI266TcsTcs°CRead
AI267TesTes°CRead
AI268T2/T2BT2/T2B°CRead
AI269TPMinSystem Minimum Discharge temp°CRead
PIV270StatPrSetStatic Pressure SettingRead
PIV271SMdSpecial ModeRead
PIV272CapOvlODU capacity overloadedRead
PIV273SMdStSpecial Mode StepsRead
PIV274SMdTpSpecial Mode TypeRead
PIV275SysDecLevDecay level (system)Read
PIV276BkpOpTpBackup Operating TypeRead
PIV277BkpOpStBackup Operating StatusRead
PIV278SensBkpSensor backupRead
PIV279ComFnBkpCompressor fan backupRead
PIV280PwrLmSetPower Limit SettingRead
PIV281SlntMdSetSilent Mode SettingRead
PIV282ASnowSetAnti-Snow SettingRead
PIV283LPwrMdLow power modeRead
PIV284MPCMPC enableRead
PIV285IOProtTpIDU and ODU protocol typeRead
CSVmin286ErrError CodeRead
PIV287OpEngNdOperating energy needRead
PIVmin288ComFr1Compressor 1 frequency (Hz)HzRead
PIV289ComFr2Compressor 2 frequency (Hz)HzRead
PIV290FnSpd1Fan 1 speed (rpm)rpmRead
PIV291FnSpd2Fan 2 speed (rpm)rpmRead
PIV292EXVAEXVA (pls)plsRead
PIV293EXVBEXVB (pls)plsRead
PIV294EXVCEXVC (pls)plsRead
PIV295IDC1Compressor current (IDC1)ARead
PIV296NTC1Compressor 1 (NTC)°CRead
PIV297VDC1DC voltage (VDC1)VRead
PIV298IDC2Compressor current (IDC2)ARead
PIV299NTC2Compressor 2 (NTC)°CRead
PIV300VDC2DC voltage (VDC2)VRead
PIV301FrLmEnFrequency limit enabledRead
AI302T3T3 (condenser temperature)°CRead
AImin303T4T4 (outdoor ambient temperature)°CRead
AI304T5T5°CRead
AI305T6AT6A°CRead
AI306T6BT6B°CRead
AI307T8T8°CRead
AI308T9T9°CRead
AI309TgTg°CRead
AI310T71T71°CRead
AI311T72T72°CRead
AI312TLTL°CRead
AImin313T7C1ODU discharge temp 1 (T7c1)°CRead
AI314T7C2ODU discharge temp 2 (T7c2)°CRead
AImin315HiPrsHigh pressureMPaRead
AImin316LoPrsLow pressureMPaRead
AI317TcHigh pressure saturation temp (Tc)°CRead
AI318TeTe°CRead
AI319TDSHDischarge superheat degree (TDSH)°CRead
IV320VACAC voltage (VAC)VRead
AI321IACAC current (IAC)ARead
PIV322SWVerSoftware main versionRead
PIV323SWSubVerSoftware sub versionRead
PIV324MdlModelRead
AI325HPHPhpRead
AI326HPNHP on nameplate (Hp)hpRead
PIV327CRANK1CRANK1Read
PIV328CRANK2CRANK2Read
PIV329SV4SV4Read
PIV330SV5SV5Read
PIV331SV6SV6Read
PIV332SV7SV7Read
PIV333SV8ASV8ARead
PIV334SV8BSV8BRead
PIV335ST1ST1Read
PIV336DecLevDecay levelRead
PIV337BlkRtBlockage rateRead
PIV338BkpStBackup statusRead
PIV339TSDisTop/Side dischargeRead
PIV340RefTpRefrigerant type settingRead
Object ID lookup: CoolAutomation CoolMasterNet Midea V8 master outdoor unit 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 Midea V8 master 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 Midea V8 master outdoor unit (PRO) objects

How many BACnet points does the CoolAutomation CoolMasterNet Midea V8 master outdoor unit (PRO) objects have?

This list has 85 BACnet objects: 32 analog inputs, 2 characterstring values, 1 integer value, 50 positive integer values. The exact set on a given unit depends on its firmware, installed options and configuration.

Which CoolAutomation CoolMasterNet Midea V8 master 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 Midea V8 master 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 Midea V8 master outdoor unit (PRO) objects?

Start with PIV 257 Md (Operating mode code); PIV 288 ComFr1 (Compressor 1 frequency, Hz); AI 303 T4 (Outdoor ambient temperature, °C); AI 315 HiPrs (High pressure, MPa); AI 316 LoPrs (Low pressure, MPa); AI 313 T7C1 (Discharge temperature 1, °C); CSV 286 Err (Error code).

How do I enable BMS control of the CoolAutomation CoolMasterNet Midea V8 master 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 Midea V8 master 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.