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TopTronic E heat generator via Hoval Modbus/BACnet gateway (standard datapoints)

Boiler / heat generator controller (via BACnet gateway) · BACnet points list

Hoval TopTronic E heat generator via Hoval Modbus/BACnet gateway (standard datapoints) BACnet points list

Updated 12 November 2026

Short answer

Hoval publishes the default signal list for its TopTronic E BACnet gateway: an Intesis BACnet server polling the TopTronic E over Modbus RTU. The standard set has 54 objects: gateway comm-error BIs, outdoor, room, flow and hot water temperatures, heat generator values, writable comfort/eco/manual setpoints for three heating circuits and hot water, and operating-mode selections and status for each circuit.

This page lists 54 BACnet objects for the Hoval TopTronic E heat generator via Hoval Modbus/BACnet gateway (standard datapoints) — 18 of them writable — with each object’s type, instance number, name, engineering units and access. It is re-typed from Hoval’s own free documentation, linked below.

Manufacturer: Hoval
Model: TopTronic E heat generator via Hoval Modbus/BACnet gateway (standard datapoints)
Equipment: Boiler / heat generator controller (via BACnet gateway)
Equipment type: Boilers & water heaters
BACnet objects: 54 (18 writable)
Transport: —
Firmware: Not stated
Also known as: TopTronic E, TTE, Hoval TTE BACnet, Hoval TopTronic E BACnet, Hoval Modbus BACnet gateway, TTE ModBus BACnet Datapoints
Source document: TTE ModBus BACnet Datapoints (Intesis MAPS signals file, sheet Signals) · rev. 2025-08-12

Download CSV 54 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 Hoval’s current documentation and the live device before use. Not official Hoval information. Terms of use.

BMS integration notes: Hoval TopTronic E heat generator via Hoval Modbus/BACnet gateway (standard datapoints)

Integration in brief

Install the Hoval BACnet gateway on the TopTronic E Modbus bus and load the Hoval project in Intesis MAPS. Then write the operating mode and room setpoints per heating circuit and the hot water setpoints, and read temperatures and status.

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
MV 0	WEZ 1 - HK 1 - Betriebswahl Heizung	Heating circuit 1 operating mode	Write
AV 0	WEZ 1 - HK 1-Normal-Raumtemperatur Heizbetrieb	Circuit 1 normal room setpoint, °C	Write
MV 3	WEZ 1 - WW - Betriebswahl Warmwasser	Hot water operating mode	Write
AV 12	WEZ 1 - WW - Normal-Warmwassertemperatur	Normal hot water setpoint, °C	Write
AI 1	WEZ 1 - AF1 - Aussenfuehler 1	Outdoor temperature	Read
AI 18	WEZ-Temperatur	Heat generator temperature	Read
AI 11	WEZ 1 - HK 1 - Vorlauf-Ist	Circuit 1 flow temperature	Read
MV 4	WEZ 1 - HK 1 - Status Heizkreisregelung	Circuit 1 control status	Read
BI 0	Comm Error Device 0	Gateway lost Modbus link	Read

Network setup

Built with Intesis MAPS; the Modbus side is RTU (Port A) to the TopTronic E gateway module.

Watch out for

State texts for the mode and status MVs are not in the file; get them from the TopTronic E Modbus documentation.
Only one heat generator (WEZ 1) and three heating circuits are mapped by default.

Hoval TopTronic E heat generator via Hoval Modbus/BACnet gateway (standard datapoints) 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.

54 of 54 shown

Type

BinaryMulti-state

Access

Units

Show

Hoval TopTronic E heat generator via Hoval Modbus/BACnet gateway (standard datapoints) BACnet Points List
			Description			States
BImin	0	Comm Error Device 0	Modbus comm error, gateway/heat generator		Read	0=No error, 1=Error
BI	1	Comm Error Device 1	Modbus comm error, device		Read	0=No error, 1=Error
BI	2	Comm Error Device 2	Modbus comm error, device		Read	0=No error, 1=Error
AImin	1	WEZ 1 - AF1 - Aussenfuehler 1	Outdoor temperature sensor	°C	Read
MVmin	0	WEZ 1 - HK 1 - Betriebswahl Heizung	Heating circuit 1: Heating circuit operating mode selection (9 states)		Write
MV	1	WEZ 1 - HK 2- Betriebswahl Heizung	Heating circuit 2: Heating circuit operating mode selection (9 states)		Write
MV	2	WEZ 1 - HK 3- Betriebswahl Heizung	Heating circuit 3: Heating circuit operating mode selection (9 states)		Write
AVmin	0	WEZ 1 - HK 1-Normal-Raumtemperatur Heizbetrieb	Heating circuit 1: Normal room temperature, heating	°C	Write
AV	1	WEZ 1 - HK 1 - Spar-Raumtemperatur Heizbetrieb	Heating circuit 1: Eco room temperature, heating	°C	Write
AV	2	WEZ 1 - HK 2-Normal-Raumtemperatur Heizbetrieb	Heating circuit 2: Normal room temperature, heating	°C	Write
AV	3	WEZ 1 - HK 2 - Spar-Raumtemperatur Heizbetrieb	Heating circuit 2: Eco room temperature, heating	°C	Write
AV	4	WEZ 1 - HK 3-Normal-Raumtemperatur Heizbetrieb	Heating circuit 3: Normal room temperature, heating	°C	Write
AV	5	WEZ 1 - HK 3 - Spar-Raumtemperatur Heizbetrieb	Heating circuit 3: Eco room temperature, heating	°C	Write
AV	6	WEZ 1 - HK 1 - Solltemperatur Handbetrieb	Heating circuit 1: Setpoint for manual mode	°C	Write
AV	7	WEZ 1 - HK 2 - Solltemperatur Handbetrieb	Heating circuit 2: Setpoint for manual mode	°C	Write
AV	8	WEZ 1 - HK 3 - Solltemperatur Handbetrieb	Heating circuit 3: Setpoint for manual mode	°C	Write
AV	9	WEZ 1 - HK 1 - Vorlauf Soll Konstantanf. Heizen	Heating circuit 1: Flow setpoint for constant heating demand	°C	Write
AV	10	WEZ 1 - HK 2 - Vorlauf Soll Konstantanf. Heizen	Heating circuit 2: Flow setpoint for constant heating demand	°C	Write
AV	11	WEZ 1 - HK 3 - Vorlauf Soll Konstantanf. Heizen	Heating circuit 3: Flow setpoint for constant heating demand	°C	Write
AI	2	WEZ 1 - HK 1 - Raum-Soll	Heating circuit 1: Room temperature setpoint in use	°C	Read
AI	3	WEZ 1 - HK 2 - Raum-Soll	Heating circuit 2: Room temperature setpoint in use	°C	Read
AI	4	WEZ 1 - HK 3 - Raum-Soll	Heating circuit 3: Room temperature setpoint in use	°C	Read
MVmin	3	WEZ 1 - WW - Betriebswahl Warmwasser	Hot water: Hot water operating mode selection (7 states)		Write
AVmin	12	WEZ 1 - WW - Normal-Warmwassertemperatur	Hot water: Normal hot water temperature	°C	Write
AV	13	WEZ 1 - WW - Spar-Warmwassertemperatur	Hot water: Eco hot water temperature	°C	Write
AI	5	WEZ 1 - WW - Warmwasser-Soll	Hot water: Hot water setpoint in use	°C	Read
AI	6	WEZ 1 - WW - Warmwasser-Ist SF	Hot water: Hot water temperature (sensor SF)	°C	Read
MVmin	4	WEZ 1 - HK 1 - Status Heizkreisregelung	Heating circuit 1: Heating circuit control status (27 states)		Read
MV	5	WEZ 1 - HK 2 - Status Heizkreisregelung	Heating circuit 2: Heating circuit control status (27 states)		Read
MV	6	WEZ 1 - HK 3 - Status Heizkreisregelung	Heating circuit 3: Heating circuit control status (27 states)		Read
MV	7	WEZ 1 - WW - Status Warmwasserregelung	Hot water: Hot water control status (14 states)		Read
AI	7	WEZ 1 - HK 1 - Raum-Ist	Heating circuit 1: Room temperature	°C	Read
AI	8	WEZ 1 - HK 2 - Raum-Ist	Heating circuit 2: Room temperature	°C	Read
AI	9	WEZ 1 - HK 3 - Raum-Ist	Heating circuit 3: Room temperature	°C	Read
AImin	11	WEZ 1 - HK 1 - Vorlauf-Ist	Heating circuit 1: Flow temperature	°C	Read
AI	12	WEZ 1 - HK 2 - Vorlauf-Ist	Heating circuit 2: Flow temperature	°C	Read
AI	13	WEZ 1 - HK 3 - Vorlauf-Ist	Heating circuit 3: Flow temperature	°C	Read
AI	14	Sollwert für Heizkreisbetrieb	Heat generator setpoint, heating circuit mode	°C	Read
AI	15	Sollwert für Speicherbetrieb	Heat generator setpoint, storage mode	°C	Read
AI	16	Leistungsbegrenzung	Heat generator output limit	%	Read
AI	17	Sollwert für Kühlbetrieb	Heat generator setpoint, cooling	°C	Read
AImin	18	WEZ-Temperatur	Heat generator temperature	°C	Read
AI	19	Rücklauftemperatur	Return temperature	°C	Read
AI	20	Wasserdruck in Bar	Water pressure	bar	Read
AI	21	Kühlung Sollwert	Cooling setpoint	°C	Read
AI	22	WEZ 1 - HK 1 - Vorlauf-Soll	Heating circuit 1: Flow temperature setpoint	°C	Read
AI	23	WEZ 1 - HK 2 - Vorlauf-Soll	Heating circuit 2: Flow temperature setpoint	°C	Read
AI	24	WEZ 1 - HK 3 - Vorlauf-Soll	Heating circuit 3: Flow temperature setpoint	°C	Read
AI	25	WEZ 1 - HK 1 - Mischer	Heating circuit 1: Mixing valve position	%	Read
AI	26	WEZ 1 - HK 2 - Mischer	Heating circuit 2: Mixing valve position	%	Read
AI	27	WEZ 1 - HK 3 - Mischer	Heating circuit 3: Mixing valve position	%	Read
AI	28	WEZ 1 - HK 1 - Pumpe	Heating circuit 1: Pump output	%	Read
AI	29	WEZ 1 - HK 2 - Pumpe	Heating circuit 2: Pump output	%	Read
AI	30	WEZ 1 - HK 3 - Pumpe	Heating circuit 3: Pump output	%	Read

Object ID lookup: Hoval TopTronic E heat generator via Hoval Modbus/BACnet gateway point IDs by name

BI0Comm Error Device 0
BI1Comm Error Device 1
BI2Comm Error Device 2
AI1WEZ 1 - AF1 - Aussenfuehler 1
MV0WEZ 1 - HK 1 - Betriebswahl Heizung
MV1WEZ 1 - HK 2- Betriebswahl Heizung
MV2WEZ 1 - HK 3- Betriebswahl Heizung
AV0WEZ 1 - HK 1-Normal-Raumtemperatur Heizbetrieb
AV1WEZ 1 - HK 1 - Spar-Raumtemperatur Heizbetrieb
AV2WEZ 1 - HK 2-Normal-Raumtemperatur Heizbetrieb
AV3WEZ 1 - HK 2 - Spar-Raumtemperatur Heizbetrieb
AV4WEZ 1 - HK 3-Normal-Raumtemperatur Heizbetrieb
AV5WEZ 1 - HK 3 - Spar-Raumtemperatur Heizbetrieb
AV6WEZ 1 - HK 1 - Solltemperatur Handbetrieb
AV7WEZ 1 - HK 2 - Solltemperatur Handbetrieb
AV8WEZ 1 - HK 3 - Solltemperatur Handbetrieb
AV9WEZ 1 - HK 1 - Vorlauf Soll Konstantanf. Heizen
AV10WEZ 1 - HK 2 - Vorlauf Soll Konstantanf. Heizen
AV11WEZ 1 - HK 3 - Vorlauf Soll Konstantanf. Heizen
AI2WEZ 1 - HK 1 - Raum-Soll
AI3WEZ 1 - HK 2 - Raum-Soll
AI4WEZ 1 - HK 3 - Raum-Soll
MV3WEZ 1 - WW - Betriebswahl Warmwasser
AV12WEZ 1 - WW - Normal-Warmwassertemperatur
AV13WEZ 1 - WW - Spar-Warmwassertemperatur
AI5WEZ 1 - WW - Warmwasser-Soll
AI6WEZ 1 - WW - Warmwasser-Ist SF
MV4WEZ 1 - HK 1 - Status Heizkreisregelung
MV5WEZ 1 - HK 2 - Status Heizkreisregelung
MV6WEZ 1 - HK 3 - Status Heizkreisregelung
MV7WEZ 1 - WW - Status Warmwasserregelung
AI7WEZ 1 - HK 1 - Raum-Ist
AI8WEZ 1 - HK 2 - Raum-Ist
AI9WEZ 1 - HK 3 - Raum-Ist
AI11WEZ 1 - HK 1 - Vorlauf-Ist
AI12WEZ 1 - HK 2 - Vorlauf-Ist
AI13WEZ 1 - HK 3 - Vorlauf-Ist
AI14Sollwert für Heizkreisbetrieb
AI15Sollwert für Speicherbetrieb
AI16Leistungsbegrenzung
AI17Sollwert für Kühlbetrieb
AI18WEZ-Temperatur
AI19Rücklauftemperatur
AI20Wasserdruck in Bar
AI21Kühlung Sollwert
AI22WEZ 1 - HK 1 - Vorlauf-Soll
AI23WEZ 1 - HK 2 - Vorlauf-Soll
AI24WEZ 1 - HK 3 - Vorlauf-Soll
AI25WEZ 1 - HK 1 - Mischer
AI26WEZ 1 - HK 2 - Mischer
AI27WEZ 1 - HK 3 - Mischer
AI28WEZ 1 - HK 1 - Pumpe
AI29WEZ 1 - HK 2 - Pumpe
AI30WEZ 1 - HK 3 - Pumpe

Integration notes

The file is an Intesis MAPS signals export (Modbus master to BACnet server) that Hoval publishes for its BACnet gateway; the mapping can be edited on site, so treat this as the factory default.
Object names are the Name column (German); descriptions here are English translations. WEZ = heat generator, HK = heating circuit, WW = domestic hot water.
Multistate objects have no state texts in the file, only the number of states.
Access: objects with a Modbus write function in the file are listed as W, the rest R.
Signal file exported with Intesis MAPS 1.2.25.0, timestamp 2025-08-12.
The file does not say whether the gateway serves BACnet IP or BACnet MS/TP; check the gateway configuration.

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 TopTronic E heat generator via Hoval Modbus/BACnet gateway (standard datapoints) 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 Hoval TopTronic E heat generator via Hoval Modbus/BACnet gateway (standard datapoints)

How many BACnet points does the Hoval TopTronic E heat generator via Hoval Modbus/BACnet gateway (standard datapoints) have?

This list has 54 BACnet objects: 29 analog inputs, 14 analog values, 3 binary inputs, 8 multi-state values. The exact set on a given unit depends on its firmware, installed options and configuration.

Which Hoval TopTronic E heat generator via Hoval Modbus/BACnet gateway (standard datapoints) BACnet points are writable?

18 of the 54 objects accept a write. Points marked Command have a priority array: a write holds until it is released, so release it back to automatic when you are done.

Where is the official Hoval TopTronic E heat generator via Hoval Modbus/BACnet gateway (standard datapoints) BACnet documentation?

The source is TTE ModBus BACnet Datapoints (Intesis MAPS signals file, sheet Signals), revision 2025-08-12, published free by Hoval at https://cdn.hoval.com/tte-modbus-bacnet-datapoints-hybris-original.xlsx.

What are the minimum BACnet points to integrate the Hoval TopTronic E heat generator via Hoval Modbus/BACnet gateway (standard datapoints)?

Start with MV 0 WEZ 1 - HK 1 - Betriebswahl Heizung (Heating circuit 1 operating mode); AV 0 WEZ 1 - HK 1-Normal-Raumtemperatur Heizbetrieb (Circuit 1 normal room setpoint, °C); MV 3 WEZ 1 - WW - Betriebswahl Warmwasser (Hot water operating mode); AV 12 WEZ 1 - WW - Normal-Warmwassertemperatur (Normal hot water setpoint, °C); AI 1 WEZ 1 - AF1 - Aussenfuehler 1 (Outdoor temperature); AI 18 WEZ-Temperatur (Heat generator temperature); AI 11 WEZ 1 - HK 1 - Vorlauf-Ist (Circuit 1 flow temperature); MV 4 WEZ 1 - HK 1 - Status Heizkreisregelung (Circuit 1 control status); BI 0 Comm Error Device 0 (Gateway lost Modbus link).

How do I check these points on the real TopTronic E heat generator via Hoval Modbus/BACnet gateway (standard datapoints)?

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 Hoval BACnet points lists

Boiler / heat generator monitoring (via BACnet gateway)
Hoval TopTronic E BACnet datapoints, use case 7 (heat generator, 3 circuits, hot water, buffer, ventilation)
Hoval TopTronic E systems with a heat generator, three heating circuits, hot water, a heating/cooling buffer and ventilation, read through an Intesis BACnet server polling Hoval Connect over Modbus TCP.
58 objects · 0 writable
Also known as: Hoval use case 7, Hoval Anwendungsfall 7, TopTronic E use case 7, TTE BACnet use case 7, Hoval Connect BACnet

Source: TTE ModBus BACnet Datapoints (Intesis MAPS signals file, sheet Signals) · rev. 2025-08-12. Object names, instances and units are reproduced as published; descriptions are our own.