KNX gateway for SMA Inverters
The KNX gateway for SMA inverters provides a simple solution to transfer all relevant data from 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 Interface for SMA SUNNY BOY / TRIPOWER 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
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 gateway is intended to be used with an SMA inverter compatible with the SMA SunSpec modbus interface definition. The inverter is connected to the ethernet network on the same router as the KNX gateway.
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.
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, 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 |
|
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 |
|
24 |
AC Power |
AC Power |
|
26 |
AC Frequency |
AC Frequency |
|
27 |
AC VA |
AC Apparent power |
|
29 |
AC PF |
Power factor |
|
30 |
AC Energy |
Total AC Energy |
|
32 |
Insulation |
Insulation resistance |
|
33 |
Temperature |
Cabinet temperature |
|
34 |
Status 1 |
Operating status (St): 1 = Off 2 = Wait for PV voltage 3 = Starting 4 = MPP 5 = Regulated 6 = Shutting down 7 = Error 8 = Waiting for electric utility company |
|
41 |
Battery 1 Running Status |
|
|
42 |
Battery 1 power |
> 0: charging < 0: discharging |
User manual & ETS Database
Version : 1.01
Applicable to all products delivered after 01-JUL-2020