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Multi-split outdoor unit monitoring via BACnet gateway · BACnet points list

CoolAutomation CoolMasterNet Mitsubishi Electric MXZ series outdoor unit (PRO) objects BACnet points list

Updated 12 November 2026

Short answer

With PRO functionality, CoolAutomation gateways publish service data from Mitsubishi Electric MXZ series outdoor units over BACnet: type, operation mode, state, compressor and fan frequencies, LEV positions, bus voltage, input and compressor currents, 63HS/63LS pressures, thermistor temperatures, demand, subcooling values SC1-SC12 and SCm1-SCm12 and relay, valve and connector states (75 objects). Monitoring only.

This page lists 75 BACnet objects for the CoolAutomation CoolMasterNet Mitsubishi Electric MXZ series 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 MXZ series outdoor unit (PRO) objects
Equipment
Multi-split outdoor unit monitoring via BACnet gateway
Equipment type
VRF & split air conditioners
BACnet objects
75 (0 writable)
Transport
BACnet IP, BACnet MS/TP
Firmware
Not stated
Default device instance
64
Also known as
Mitsubishi MXZ BACnet, CoolMasterNet Mitsubishi Electric, MXZ series, PUMY series
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 75 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 MXZ series 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 and pressures.

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 257OpeMOperation mode codeRead
PIV 258StateOperating condition codeRead
PIV 259F(Hz)Compressor frequency, HzRead
AI 265IcCompressor current, ARead
AI 26863HSHigh pressure, kg/cm2Read
AI 26963LSLow pressure, kg/cm2Read
BI 281DmndDemand 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 Mitsubishi Electric MXZ series 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.

75 of 75 shown
Type
AnalogBinary
Show
CoolAutomation CoolMasterNet Mitsubishi Electric MXZ series outdoor unit (PRO) objects BACnet Points List
DescriptionStates
CSV256TypeOutdoor Unit Type NameRead
PIVmin257OpeMOPERATION MODERead
PIVmin258StateStateRead
PIVmin259F(Hz)All temporary frequenciesHzRead
PIV260FANFan outputHzRead
PIV261LEV_ALEV_AplsRead
PIV262LEV_BLEV_BplsRead
AI263VdcVDCVRead
AI264IiI(input)ARead
AImin265IcI(comp)ARead
PIV266WcW(comp)Read
PIV267GRGRRead
AImin26863HSHigh pressure sensorkg/cm2Read
AImin26963LS63LS Pressure sensorkg/cm2Read
AI270TH2Thermistor 2°CRead
AI271TH3Thermistor 3°CRead
AI272TH4Thermistor 4°CRead
AI273TH6Inlet pipe temperature of the heat exchanger°CRead
AI274TH7Thermistor 7°CRead
AI275TH8Thermistor 8°CRead
PIV276Dmnd(%)Demand(%)%Read
AI277SCSC°CRead
AI278SCmSCm°CRead
AI279HicSCHIC SC°CRead
AI280HicSCmHIC SCm°CRead
BImin281DmndDemandRead
BI28252C52CRead
BI28321S421S4Read
BI284SV1SV1Read
BI285SV2SV2Read
BI286SV3SV3Read
BI287SS/BHSS/BHRead
BI288CN3D-2CN3D-2Read
BI289CN3S-2CN3S-2Read
BI290CN3N-2CN3N-2Read
BI291CN3N-3CN3N-3Read
BI292CN3D-3CN3D-3Read
AI293PdmPdmkg/cm2Read
AI294ETmETm°CRead
AI295SC1SC1°CRead
AI296SC2SC2°CRead
AI297SC3SC3°CRead
AI298SC4SC4°CRead
AI299SC5SC5°CRead
AI300SC6SC6°CRead
AI301SC7SC7°CRead
AI302SC8SC8°CRead
AI303SC9SC9°CRead
AI304SC10SC10°CRead
AI305SC11SC11°CRead
AI306SC12SC12°CRead
AI307SCm1SCm1°CRead
AI308SCm2SCm2°CRead
AI309SCm3SCm3°CRead
AI310SCm4SCm4°CRead
AI311SCm5SCm5°CRead
AI312SCm6SCm6°CRead
AI313SCm7SCm7°CRead
AI314SCm8SCm8°CRead
AI315SCm9SCm9°CRead
AI316SCm10SCm10°CRead
AI317SCm11SCm11°CRead
AI318SCm12SCm12°CRead
PIV319LEV1LEV1 Linear expansion valveplsRead
PIV320LEV2LEV2 Linear expansion valveplsRead
PIV321LEV3LEV3 PulseplsRead
PIV322LEV4Linear expansion valveplsRead
PIV323LEV5LEV5plsRead
PIV324LEV6LEV6plsRead
PIV325LEV7LEV7plsRead
PIV326LEV8LEV8plsRead
PIV327LEV9LEV9plsRead
PIV328LEV10LEV10plsRead
PIV329LEV11LEV11plsRead
PIV330LEV12LEV12plsRead
Object ID lookup: CoolAutomation CoolMasterNet Mitsubishi Electric MXZ series 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 MXZ series 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 MXZ series outdoor unit (PRO) objects

How many BACnet points does the CoolAutomation CoolMasterNet Mitsubishi Electric MXZ series outdoor unit (PRO) objects have?

This list has 75 BACnet objects: 41 analog inputs, 12 binary inputs, 1 characterstring value, 21 positive integer values. The exact set on a given unit depends on its firmware, installed options and configuration.

Which CoolAutomation CoolMasterNet Mitsubishi Electric MXZ series 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 MXZ series 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 MXZ series outdoor unit (PRO) objects?

Start with PIV 257 OpeM (Operation mode code); PIV 258 State (Operating condition code); PIV 259 F(Hz) (Compressor frequency, Hz); AI 265 Ic (Compressor current, A); AI 268 63HS (High pressure, kg/cm2); AI 269 63LS (Low pressure, kg/cm2); BI 281 Dmnd (Demand state).

How do I enable BMS control of the CoolAutomation CoolMasterNet Mitsubishi Electric MXZ series 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 MXZ series 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.