Home
BACnet points lists
Chipkin Automation Systems
CAS-2700-24 SMA Gateway - Sunny Island objects

Battery inverter (off-grid / backup) via BACnet gateway · BACnet points list

Chipkin Automation Systems CAS-2700-24 SMA Gateway - Sunny Island objects BACnet points list

Updated 11 November 2026

Short answer

For an SMA Sunny Island the CAS-2700-24 gateway serves 120 read-only Analog Inputs on BACnet IP, named with SMA's channel codes. They cover battery, generator, external/grid and inverter values for the master and up to three slave units, relay states and Sunny Island Charger PV values.

This page lists 120 BACnet objects for the Chipkin Automation Systems CAS-2700-24 SMA Gateway - Sunny Island objects — 0 of them writable — with each object’s type, instance number, name, engineering units and access. It is re-typed from Chipkin Automation Systems’s own free documentation, linked below.

Manufacturer: Chipkin Automation Systems
Model: CAS-2700-24 SMA Gateway - Sunny Island objects
Equipment: Battery inverter (off-grid / backup) via BACnet gateway
Equipment type: Other equipment
BACnet objects: 120 (0 writable)
Transport: BACnet IP
Firmware: Not stated
Default device instance: 389001
Also known as: SMA Sunny Island BACnet, Sunny Island battery inverter BACnet, CAS-2700-24, Chipkin SMA gateway
Source document: CAS-2700-24 SMA Gateway Manual (Modbus RTU and TCP / BACnet / HTML Gateway) · CAS-2700-24 · rev. Doc Rev 0, 12 Feb 2014

Download CSV 120 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 Chipkin Automation Systems’s current documentation and the live device before use. Not official Chipkin Automation Systems information. Terms of use.

BMS integration notes: Chipkin Automation Systems CAS-2700-24 SMA Gateway - Sunny Island objects

Integration in brief

Add the WebBox and each SMA device on the gateway's configuration page, then read the Analog Inputs; the gateway is monitoring only.

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.

Object	Name	Why	Access
AI 82	OpStt	Operating state (OpStt)	Read
AI 6	BatSoc	Battery state of charge (BatSoc)	Read
AI 9	BatVtg	Battery voltage	Read
AI 8	BatTmp	Battery temperature	Read
AI 55	GnStt	Generator status (GnStt)	Read
AI 18	Error	Sunny Island error status	Read

Heartbeat & communication loss

If the gateway loses a device or a value can't be read, the object's Out_Of_Service is set true and the last good value stays in Present_Value.

Network setup

Gateway default BACnet device instance 389001, UDP port 47808; give each gateway a unique instance.
Enter the Sunny WebBox IP address and pick the device type (Invertor, SensorBox or Sunny Island) for each device in the gateway's web page.
Only one Sunny WebBox per gateway.

Watch out for

Watch Out_Of_Service rather than the value to spot lost data.
Names are SMA channel codes; see the SMA documentation for scaling and units.

Chipkin Automation Systems CAS-2700-24 SMA Gateway - Sunny Island 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.

120 of 120 shown

Type

Analog

Show

Chipkin Automation Systems CAS-2700-24 SMA Gateway - Sunny Island objects BACnet Points List

AI	1	Adr	Read
AI	2	AptPhs	Read
AI	3	AptTmRmg	Read
AI	4	BatChrgOp	Read
AI	5	BatChrgVtg	Read
AImin	6	BatSoc	Read
AI	7	BatSocErr	Read
AImin	8	BatTmp	Read
AImin	9	BatVtg	Read
AI	10	CardStt	Read
AI	11	ChpPwrAt	Read
AI	12	ChpRmgTm	Read
AI	13	ChpStrRmgTm	Read
AI	14	ChpStt	Read
AI	15	EgyCntIn	Read
AI	16	EgyCntOut	Read
AI	17	EgyCntTm	Read
AImin	18	Error	Read
AI	19	E-Total	Read
AI	20	E-Total-In	Read
AI	21	ExtCur	Read
AI	22	ExtCurSlv1	Read
AI	23	ExtCurSlv2	Read
AI	24	ExtCurSlv3	Read
AI	25	ExtFrq	Read
AI	26	ExtPwrAt	Read
AI	27	ExtPwrAtSlv1	Read
AI	28	ExtPwrAtSlv2	Read
AI	29	ExtPwrAtSlv3	Read
AI	30	ExtPwrRt	Read
AI	31	ExtPwrRtSlv1	Read
AI	32	ExtPwrRtSlv2	Read
AI	33	ExtPwrRtSlv3	Read
AI	34	ExtVtg	Read
AI	35	ExtVtgSlv1	Read
AI	36	ExtVtgSlv2	Read
AI	37	ExtVtgSlv3	Read
AI	38	Fac	Read
AI	39	Firmware	Read
AI	40	FwVer	Read
AI	41	FwVer2	Read
AI	42	GdCtcCnt	Read
AI	43	GdEgyCntIn	Read
AI	44	GdEgyCntOut	Read
AI	45	GdEgyTmh	Read
AI	46	GdOpTmh	Read
AI	47	GdRmgTm	Read
AI	48	GnDmdSrc	Read
AI	49	GnEgyCnt	Read
AI	50	GnEgyTm	Read
AI	51	GnOpTmh	Read
AI	52	GnRmgTm	Read
AI	53	GnRnStt	Read
AI	54	GnStrCnt	Read
AImin	55	GnStt	Read
AI	56	h-On	Read
AI	57	Iac	Read
AI	58	InvCur	Read
AI	59	InvCurSlv1	Read
AI	60	InvCurSlv2	Read
AI	61	InvCurSlv3	Read
AI	62	InvFrq	Read
AI	63	InvOpStt	Read
AI	64	InvOpSttSlv1	Read
AI	65	InvOpSttSlv2	Read
AI	66	InvOpSttSlv3	Read
AI	67	InvPwrAt	Read
AI	68	InvPwrAtSlv1	Read
AI	69	InvPwrAtSlv2	Read
AI	70	InvPwrAtSlv3	Read
AI	71	InvPwrRt	Read
AI	72	InvPwrRtSlv1	Read
AI	73	InvPwrRtSlv2	Read
AI	74	InvPwrRtSlv3	Read
AI	75	InvVtg	Read
AI	76	InvVtgSlv1	Read
AI	77	InvVtgSlv2	Read
AI	78	InvVtgSlv3	Read
AI	79	Mode	Read
AI	80	Msg	Read
AI	81	OnTmh	Read
AImin	82	OpStt	Read
AI	83	OpSttSlv1	Read
AI	84	OpSttSlv2	Read
AI	85	OpSttSlv3	Read
AI	86	Pac	Read
AI	87	Prio	Read
AI	88	Rly1Stt	Read
AI	89	Rly2Stt	Read
AI	90	RmgTmEqu	Read
AI	91	RmgTmFul	Read
AI	92	Serial Number	Read
AI	93	Sic1EgyCntIn	Read
AI	94	Sic1PvPwr	Read
AI	95	Sic1TdyEgyCntIn	Read
AI	96	Sic2EgyCntIn	Read
AI	97	Sic2PvPwr	Read
AI	98	Sic2TdyEgyCntIn	Read
AI	99	Sic3EgyCntIn	Read
AI	100	Sic3PvPwr	Read
AI	101	Sic3TdyEgyCntIn	Read
AI	102	Sic4EgyCntIn	Read
AI	103	Sic4PvPwr	Read
AI	104	Sic4TdyEgyCntIn	Read
AI	105	Soh	Read
AI	106	TotBatCur	Read
AI	107	TotExtCur	Read
AI	108	TotExtPwrAt	Read
AI	109	TotExtPwrRt	Read
AI	110	TotInvCur	Read
AI	111	TotInvPwrAt	Read
AI	112	TotInvPwrRt	Read
AI	113	TotLodPwr	Read
AI	114	TotMccLodPwr	Read
AI	115	TotSicBatCur	Read
AI	116	TotSicDyEgyCntI	Read
AI	117	TotSicEgyCntIn	Read
AI	118	TotSicPvPwr	Read
AI	119	TotTmh	Read
AI	120	Vac	Read

Object ID lookup: Chipkin Automation Systems CAS-2700-24 SMA Sunny Island point IDs by name

AI1Adr
AI2AptPhs
AI3AptTmRmg
AI4BatChrgOp
AI5BatChrgVtg
AI6BatSoc
AI7BatSocErr
AI8BatTmp
AI9BatVtg
AI10CardStt
AI11ChpPwrAt
AI12ChpRmgTm
AI13ChpStrRmgTm
AI14ChpStt
AI15EgyCntIn
AI16EgyCntOut
AI17EgyCntTm
AI18Error
AI19E-Total
AI20E-Total-In
AI21ExtCur
AI22ExtCurSlv1
AI23ExtCurSlv2
AI24ExtCurSlv3
AI25ExtFrq
AI26ExtPwrAt
AI27ExtPwrAtSlv1
AI28ExtPwrAtSlv2
AI29ExtPwrAtSlv3
AI30ExtPwrRt
AI31ExtPwrRtSlv1
AI32ExtPwrRtSlv2
AI33ExtPwrRtSlv3
AI34ExtVtg
AI35ExtVtgSlv1
AI36ExtVtgSlv2
AI37ExtVtgSlv3
AI38Fac
AI39Firmware
AI40FwVer
AI41FwVer2
AI42GdCtcCnt
AI43GdEgyCntIn
AI44GdEgyCntOut
AI45GdEgyTmh
AI46GdOpTmh
AI47GdRmgTm
AI48GnDmdSrc
AI49GnEgyCnt
AI50GnEgyTm
AI51GnOpTmh
AI52GnRmgTm
AI53GnRnStt
AI54GnStrCnt
AI55GnStt
AI56h-On
AI57Iac
AI58InvCur
AI59InvCurSlv1
AI60InvCurSlv2
AI61InvCurSlv3
AI62InvFrq
AI63InvOpStt
AI64InvOpSttSlv1
AI65InvOpSttSlv2
AI66InvOpSttSlv3
AI67InvPwrAt
AI68InvPwrAtSlv1
AI69InvPwrAtSlv2
AI70InvPwrAtSlv3
AI71InvPwrRt
AI72InvPwrRtSlv1
AI73InvPwrRtSlv2
AI74InvPwrRtSlv3
AI75InvVtg
AI76InvVtgSlv1
AI77InvVtgSlv2
AI78InvVtgSlv3
AI79Mode
AI80Msg
AI81OnTmh
AI82OpStt
AI83OpSttSlv1
AI84OpSttSlv2
AI85OpSttSlv3
AI86Pac
AI87Prio
AI88Rly1Stt
AI89Rly2Stt
AI90RmgTmEqu
AI91RmgTmFul
AI92Serial Number
AI93Sic1EgyCntIn
AI94Sic1PvPwr
AI95Sic1TdyEgyCntIn
AI96Sic2EgyCntIn
AI97Sic2PvPwr
AI98Sic2TdyEgyCntIn
AI99Sic3EgyCntIn
AI100Sic3PvPwr
AI101Sic3TdyEgyCntIn
AI102Sic4EgyCntIn
AI103Sic4PvPwr
AI104Sic4TdyEgyCntIn
AI105Soh
AI106TotBatCur
AI107TotExtCur
AI108TotExtPwrAt
AI109TotExtPwrRt
AI110TotInvCur
AI111TotInvPwrAt
AI112TotInvPwrRt
AI113TotLodPwr
AI114TotMccLodPwr
AI115TotSicBatCur
AI116TotSicDyEgyCntI
AI117TotSicEgyCntIn
AI118TotSicPvPwr
AI119TotTmh
AI120Vac

Integration notes

All objects are Analog Inputs; the manual gives names only, with no units or descriptions.
Each further SMA device added to the gateway is offset by 100 (second device starts at AI 101, third at AI 201).
The list is what the gateway exposes with its default configuration; the gateway polls the devices through one SMA Sunny WebBox.
Access is inferred: Analog Inputs are read-only.
This list runs to AI 120 but the guide offsets each further device by only 100, so a second device would overlap; check instances on site.

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 CAS-2700-24 SMA Gateway - Sunny Island 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 Chipkin Automation Systems CAS-2700-24 SMA Gateway - Sunny Island objects

How many BACnet points does the Chipkin Automation Systems CAS-2700-24 SMA Gateway - Sunny Island objects have?

This list has 120 BACnet objects: 120 analog inputs. The exact set on a given unit depends on its firmware, installed options and configuration.

Which Chipkin Automation Systems CAS-2700-24 SMA Gateway - Sunny Island 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 Chipkin Automation Systems CAS-2700-24 SMA Gateway - Sunny Island objects BACnet documentation?

The source is CAS-2700-24 SMA Gateway Manual (Modbus RTU and TCP / BACnet / HTML Gateway) (CAS-2700-24), revision Doc Rev 0, 12 Feb 2014, published free by Chipkin Automation Systems at https://cdn.chipkin.com/assets/uploads/2017/mar/09-14-31-59_CAS-2700-24%20-%20SMA%20to%20Modbus_RTU%20and%20TCP_%20BACnet%20and%20HTML%20Gateway%20Manual.pdf.

What are the minimum BACnet points to integrate the Chipkin Automation Systems CAS-2700-24 SMA Gateway - Sunny Island objects?

Start with AI 82 OpStt (Operating state (OpStt)); AI 6 BatSoc (Battery state of charge (BatSoc)); AI 9 BatVtg (Battery voltage); AI 8 BatTmp (Battery temperature); AI 55 GnStt (Generator status (GnStt)); AI 18 Error (Sunny Island error status).

Does the Chipkin Automation Systems CAS-2700-24 SMA Gateway - Sunny Island objects need a BACnet heartbeat or have a communication timeout?

If the gateway loses a device or a value can't be read, the object's Out_Of_Service is set true and the last good value stays in Present_Value.

How do I check these points on the real CAS-2700-24 SMA Gateway - Sunny Island 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 Chipkin Automation Systems BACnet points lists

Source: CAS-2700-24 SMA Gateway Manual (Modbus RTU and TCP / BACnet / HTML Gateway) · CAS-2700-24 · rev. Doc Rev 0, 12 Feb 2014. Object names, instances and units are reproduced as published; descriptions are our own.