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VRF branch controller monitoring via BACnet gateway · BACnet points list

CoolAutomation CoolMasterNet Mitsubishi Electric BC controller (JA/KA) (PRO) objects BACnet points list

Updated 12 November 2026

Short answer

With PRO functionality, CoolAutomation gateways publish service data from Mitsubishi Electric BC controllers of the JA and KA types over BACnet: temperatures T1, T2, T5, T6, high (P1) and intermediate (P3) pressure, liquid level controls, dPHM, subcooling and superheat, 48 binary objects named 1a to 0c and the operation control signals to and from the outdoor unit (64 objects). Monitoring only.

This page lists 64 BACnet objects for the CoolAutomation CoolMasterNet Mitsubishi Electric BC controller (JA/KA) (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 BC controller (JA/KA) (PRO) objects
Equipment
VRF branch controller monitoring via BACnet gateway
Equipment type
VRF & split air conditioners
BACnet objects
64 (0 writable)
Transport
BACnet IP, BACnet MS/TP
Firmware
Not stated
Default device instance
64
Also known as
Mitsubishi City Multi BC controller BACnet, CoolMasterNet Mitsubishi Electric, BC(JA), BC(KA)
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 64 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 BC controller (JA/KA) (PRO) objects

Integration in brief

Use these objects to monitor Mitsubishi Electric BC controller equipment only; control stays on the CoolMasterNet indoor-unit objects. Map the block's VA and trend the pressures, subcooling and superheat.

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
AI 261P1High pressure, kg/cm2Read
AI 262P3Intermediate pressure, kg/cm2Read
AI 257T1BC temperature T1, °CRead
AI 267SC1Subcooling SC1, °CRead
AI 269SH2Superheat SH2, °CRead
PIV 318BCSigBC operation control signalRead
PIV 319OCSigControl signal from the outdoor unitRead

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 BC controller (JA/KA) (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.

64 of 64 shown
Type
AnalogBinary
Show
CoolAutomation CoolMasterNet Mitsubishi Electric BC controller (JA/KA) (PRO) objects BACnet Points List
DescriptionStates
CSV256TypeOutdoor Unit Type NameRead
AImin257T1BC T1°CRead
AI258T2BC T2°CRead
AI259T5BC T5°CRead
AI260T6BC T6°CRead
AImin261P1BC P1 High pressurekg/cm2Read
AImin262P3BC P3 Intermediate pressurekg/cm2Read
PIV263L1BC L1 Liquid level controlRead
PIV264L3BC L3 Liquid level controlRead
PIV265L4BC L4 Liquid level controlRead
AI266dPHMBC dPHMkg/cm2Read
AImin267SC1BC SC1°CRead
AI268SC6BC SC6°CRead
AImin269SH2BC SH2°CRead
BI2701a1aRead
BI2712a2aRead
BI2723a3aRead
BI2734a4aRead
BI2745a5aRead
BI2756a6aRead
BI2767a7aRead
BI2778a8aRead
BI2789a9aRead
BI279AaAaRead
BI280BaBaRead
BI281CaCaRead
BI282DaDaRead
BI283EaEaRead
BI284FaFaRead
BI2850a0aRead
BI2861b1bRead
BI2872b2bRead
BI2883b3bRead
BI2894b4bRead
BI2905b5bRead
BI2916b6bRead
BI2927b7bRead
BI2938b8bRead
BI2949b9bRead
BI295AbAbRead
BI296BbBbRead
BI297CbCbRead
BI298DbDbRead
BI299EbEbRead
BI300FbFbRead
BI3010b0bRead
BI3021c1cRead
BI3032c2cRead
BI3043c3cRead
BI3054c4cRead
BI3065c5cRead
BI3076c6cRead
BI3087c7cRead
BI3098c8cRead
BI3109c9cRead
BI311AcAcRead
BI312BcBcRead
BI313CcCcRead
BI314DcDcRead
BI315EcEcRead
BI316FcFcRead
BI3170c0cRead
PIVmin318BCSigBC controller operation control signalRead
PIVmin319OCSigIndoor unit operation control signal from OCRead
Object ID lookup: CoolAutomation CoolMasterNet Mitsubishi Electric BC controller (JA/KA) (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 BC controller (JA/KA) (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 BC controller (JA/KA) (PRO) objects

How many BACnet points does the CoolAutomation CoolMasterNet Mitsubishi Electric BC controller (JA/KA) (PRO) objects have?

This list has 64 BACnet objects: 10 analog inputs, 48 binary inputs, 1 characterstring value, 5 positive integer values. The exact set on a given unit depends on its firmware, installed options and configuration.

Which CoolAutomation CoolMasterNet Mitsubishi Electric BC controller (JA/KA) (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 BC controller (JA/KA) (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 BC controller (JA/KA) (PRO) objects?

Start with AI 261 P1 (High pressure, kg/cm2); AI 262 P3 (Intermediate pressure, kg/cm2); AI 257 T1 (BC temperature T1, °C); AI 267 SC1 (Subcooling SC1, °C); AI 269 SH2 (Superheat SH2, °C); PIV 318 BCSig (BC operation control signal); PIV 319 OCSig (Control signal from the outdoor unit).

How do I enable BMS control of the CoolAutomation CoolMasterNet Mitsubishi Electric BC controller (JA/KA) (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 BC controller (JA/KA) (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.