KNX gateway for GoodWe Inverters

The KNX gateway for GoodWe inverters provides a simple solution to transfer all relevant data from the inverters to KNX. It allows integrators to take advantage of a fully integrated solar panel inverter, the data can be used to optimize energy consumption, monitoring, trending or to trigger specific action in the KNX installation. 

KNX Gateway for solar inverters
  • KNX Interface for GoodWe inverter serie
  • Monitoring of Energy, Power, current, voltage, frequency, temperature,…
  • Connected to the inverter over Ethernet
  • Galvanic insulation from the KNX bus
  • Configurable refresh rate of inverter data
  • DIN rail mounted
  • Auxiliary power supply 12-30VDC
  • Advanced Logic functions including weekly calendar, sequences, math, logic gates and triggers.


The KNX interface module INV-KNX is a KNX gateway for the GoodWe inverters. It provides KNX group objects for all relevant values from the inverter. See below for the complete list of objects. 

This gateway is intended to be used with a GoodWe inverter compatible with the SunSpec modbus interface definition. The inverter is connected to the ethernet network on the same router as the KNX gateway.


Elausys INV-KNX module is supplied from an external 12-30VDC power supply.  An Ethernet RJ45 connector and a KNX connector provide access to the KNX bus and to the ethernet network. No additional component or wiring is required.

INV-KNX gateway connection


The KNX application software includes the following group objects. All group object are refreshed at a cyclic rate defined by an ETS parameters.

When the inverter is equipped with an external powermeter, this information are also available on the KNX gateway.

Depending on the inverter model, not all of these objects may be available. See user manual for more details. In case your inverter model is not yet supported, please contact us to see the compatibility or possibility to include it.





AC Current A

AC Current phase A


AC Current B

AC Current phase B


AC Current C

AC Current phase C


AC Voltage AN

AC Voltage phase AN


AC Voltage BN

AC Voltage phase BN


AC Voltage CN

AC Voltage phase CN


PV1 Voltage

PV1 Voltage


PV1 Current

PV1 Current


PV2 Voltage

PV2 Voltage


PV2 Current

PV2 Current


PV3 Voltage

PV3 Voltage


PV3 Current

PV3 Current


PV4 Voltage

PV4 Voltage


PV4 Current

PV4 Current


AC Power

AC Power


AC Frequency

AC Frequency



AC Apparent power



AC Reactive power


AC Energy

Total AC Energy



Cabinet temperature


Daily Energy Yield



Battery 1 Running Status

0: offline

2: standby

3: running

4: fault

5: sleep mode


Battery 1 power

> 0: charging

< 0: discharging


Battery 1 SOC

Battery’s state of



Battery 1 current day charge



Battery 1 current day discharge



Battery 1 total charge



Battery 1 total discharge




> 0: charging

< 0: discharging


Logic Functions 

Rich features

The KNX logic module is a virtual extension module that is part of the ETS application on the inverters gateways. Each logic module includes 8 logic functions including logic gates, sequences, triggers, math operation and weekly calendar events.

  • Up to 64 logic functions using extension modules
  • Logic Gate with 8 inputs, configurable output delay and inversion 
  • Sequence with 4 steps, configurable outputs delays and datatypes
  • Trigger with inputs logic, delays and weekly calendar events
  • Math operations with configurable objects type and delays

User manual & ETS Database


This product is available on our web shop

 Customer feedback

Gateway für Fronius Gen 24 und BYD HVS

Rated 5.0 out of 5
October 31, 2023

Nicolas hat mich bei der Installation und bei der Funktionserweiterung unterstützt, er bietet einen super Support !

Danke nochmals an dieser Stelle. Gateway funktioniert einwandfrei !


Perfect Remote-Support to solve my problem

Rated 5.0 out of 5
October 13, 2023

At the beginning there were difficulties with the Modbus communication between the Elausys Gateway and the SMA inverter.

All my attempts to find and solution for this problem failed. When I got stuck, i called the Elausys-Support-Team.

They connected to my site remotely. Luckily they was able to solve the challenge.

The SMA expects a special UnitID for communication with my SunSpec Profile (+123).

Again – thank you very much for your support!

B, Niemann

Support for Battery integration

Rated 5.0 out of 5
August 22, 2023


i am More then happy with the great support of Nicolas. He implement me the Battery Status for my Solar Edge Battery within 1 hour!

Great product, great support.

thanks 🙂

Christian Schönhöfer

Working very well and great support !

Rated 5.0 out of 5
May 25, 2023

I use this module since 2 years (with a SE7K inverter), without any issues: well working and really stable !

And the support is very fast !

Thanks a lot for that !


Gateway for Solar Edge

Rated 5.0 out of 5
May 22, 2023

works very good out of the box!

I like it !

Christian Schönhöfer

Klasse Teil

Rated 5.0 out of 5
April 3, 2023

Das Gerät hat vom ersten Programmieren an funktioniert. Einfach zu programmieren, einfach klasse 🙂

Stefan Opitz

Great device and great support!

Rated 5.0 out of 5
January 25, 2023

I bought the gateway for our SolarEdge SE10K. I had some problems during the installation and emailed ELAUSYS. After a TeamViewer session, all problems could be solved. The problem was with the inverter… The support was really fast, competent and friendly. Now everything works fine.

J. Haas

Gateway for Solar Edge inverters

Rated 5.0 out of 5
February 22, 2022

INV-KNX- Gateway for Solar Edge inverters can translate between TCP modbus and KNX via ethernet connection. The Integrator has the ability to use almost 40 communication objects for monitoring and status.

Athanasios iLiadis, System Integrator - Cognitive

Great - it works from first second.

Rated 5.0 out of 5
February 22, 2022

Great – it works from first second.

Also very good support if you need (its simple).

Bernhard Haba, CEO - HABA Verpackung GmbH

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