KNX gateway for Huawei Inverters

The KNX gateway for Huawei SUN2000 inverters provides a simple solution to transfer all relevant data from Huawei 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 Huawei SUN2000 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.

DESCRIPTION

The KNX interface module INV-KNX is a KNX gateway for the Huawei SUN2000 inverters. It provides KNX group object for all relevant values from the inverter. See below for the complete list of objects. 

This interface is intended to be used with a SUN2000 inverter. The inverters SUN2000 must be connected to the local network using a SmartDongle. For SUN2000L inverters, the connection is made through the local WIFI network.

Huawei KNX gateway connection

CONNECTION

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

SOFTWARE

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 batteries or an external powermeter, these 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.

GO

NAME

DESCRIPTION

3

AC Current

AC Total Current value

4

AC Current A

AC Current phase A

5

AC Current B

AC Current phase B

6

AC Current C

AC Current phase C

7

AC Voltage

AC Total Voltage

8

AC Voltage AB

AC Voltage phase AB

9

AC Voltage BC

AC Voltage phase BC

10

AC Voltage CA

AC Voltage phase CA

11

AC Voltage AN

AC Voltage phase AN

12

AC Voltage BN

AC Voltage phase BN

13

AC Voltage CN

AC Voltage phase CN

16

PV1 Voltage

PV1 Voltage

17

PV1 Current

PV1 Current

18

PV2 Voltage

PV2 Voltage

19

PV2 Current

PV2 Current

20

PV3 Voltage

PV3 Voltage

21

PV3 Current

PV3 Current

22

PV4 Voltage

PV4 Voltage

23

PV4 Current

PV4 Current

24

AC Power

AC Power

25

DC Power

DC Power

26

AC Frequency

AC Frequency

28

AC VAR

AC Reactive power

29

AC PF

Power factor

30

AC Energy

Total AC Energy

31

Efficiency

Inverter efficiency

32

Insulation

Insulation resistance

33

Temperature

Cabinet temperature

40

Daily Energy Yield

 

41

Battery 1 Running Status

0: offline

2: standby

3: running

4: fault

5: sleep mode

42

Battery 1 power

> 0: charging

< 0: discharging

43

Battery 1 SOC

Battery’s state of

capacity

44

Battery 1 current day charge

 

45

Battery 1 current day discharge

 

46

Battery 1 total charge

 

47

Battery 1 total discharge

 

48

Battery 2 Running Status

0: offline

2: standby

3: running

4: fault

5: sleep mode

49

Battery 2 power

> 0: charging

< 0: discharging

50

Battery 2 SOC

Battery’s state of

capacity

51

Battery 2 current day charge

 

52

Battery 2 current day discharge

 

53

Battery 2 total charge

 

54

Battery 2 total discharge

 

55

Powermeter

> 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

For devices shipped after 01-AUG-2022 :

For devices shipped before 01-AUG-2022 :

WHERE TO BUY ?

This product is available on our web shop

 Customer feedback

Gateway for Solar Edge inverters

Rated 5 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 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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