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Template

Growatt Inverter v2

by Milan BrejlNo rating yet998 downloads

Content languageEnglish

Download · v1.0.0Add to favourites

Updated May 5, 2023

Download · v1.0.0

Description

Connect your SPH type Growatt Inverter from 485-3 port to Loxone ModBus extension. Check settings of 9600bps, 1 stop bit and NO parity. Default Growatt ModBus address is 1.

Inputs and outputs · 29

NameTypeUnit
Inverter statusModbus<v.0>
Output powerModbuskW
PV energy todayModbuskWh
PV energy totalModbuskWh
Battery state of chargeModbus%
Input power from PV panelsModbuskW
Input power from PV string 1ModbuskW
Input power from PV string 2ModbuskW
Inverter temperatureModbus°C
Battery temperatureModbus°C
Energy to grid totalModbuskWh
Energy to grid todayModbuskWh
Battery voltageModbusV
Charge powerModbuskW
Discharge powerModbuskW
Energy to user totalModbuskWh
Energy to user todayModbuskWh
Discharge energy todayModbuskWh
Discharge energy totalModbuskWh
Charge energy todayModbuskWh
Charge energy totalModbuskWh
Local load energy todayModbuskWh
Local load energy totalModbuskWh
AC power to userModbuskW
AC power to gridModbuskW
INV power to local loadModbuskW
EPS output power L1ModbuskVA
EPS output power L2ModbuskVA
EPS output power L3ModbuskVA

FAQ

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Questions and answers

  1. Model

    Open

    Daniel Dreissen

    Hi,

    Which growatt model? Is it SPH10000TL3 BH-UP?

    What port configuration did you make for port 483-3?

    Thanks and regards,

    1 reply

    1. Milan BrejlCreator

      Yes, tested on SPH4-10KTL3 BH-UP. RS485 Setting = Port: unused (default).

  2. Cable?

    Open

    Oliver Bogen

    Hi

    I tried it, but don't get it to run....

    My Inverter SPH 10000TL3 BH-UP I used first a KNX Kabel with RJ45 adapter no success now I am using a netzwerk cable 10m on Side (to the Inverter Original) the other connected to the ModBus Interface of Loxone

    any Idea?

    How did you connect and did you use a resistance because with the RJ45 I see no way how?

    regards Oliver

    1 reply

    1. Milan BrejlCreator

      UTP cable, no resistance.

  3. wire connection

    Open

    Petr Pospíšil

    If is RJ45 cabel, which PIN you using to connect ModBus of Loxone. Petr

    2 replies

    1. Michael Liegl

      I have the same issue. Please could you tell us, which Pin (colour cable pair) is used for A,B and ground?

    2. Milan BrejlCreator

      https://photos.app.goo.gl/ZjNtxneHrMccaLkt9

      Growatt side: - RS485-3 - RJ45 pinout B (https://showmecables-static.scdn3.secure.raxcdn.com/media/wysiwyg/RJ45-Pinout-T568A.jpg)

      Loxone side (lef to right): - B: white/orange - GND: orange - A: white/blue

      Surprisingly, the AB pair is not on a twisted pair.

  4. Open

    Benjamin Winkler

    Hi,

    Are you connecting to the RS485 interface, where also the smartMeter is connected? Or are you using a second RS485 interface of the inverter?

    1 reply

    1. Milan BrejlCreator

      Using RS485-3 on the inverter.

  5. ModBus protokol

    Open

    Alice Svobodová

    Hello, Do you have a newer ModBus protocol table? In my SPH 10000TL3 BH-UP, the Modbus version is 3.05 Thank you in advance

    1 reply

    1. Milan BrejlCreator

      No, I don't have.

  6. Settings for SPH 10000TL3 BH

    Open

    Max Brokbals

    Hello, first of all thank you for the libary and the support you give!

    I had a Growatt 10000TL3 BH and a few issues to make it work, for that reason I want to share what I have found out:

    The Growatt 10000TL3 BH seems to have a slightly diffrent Pinout then other Growatt Inverters. In my Case it was: Ground: Pin 2 RS485A: Pin 7 RS485B: Pin 8

    Additional I had to set the Workmode: VPP

    Compared to the Libary here I had one more string, so I had to add the following Sensors to be able to measure the whole production: IO-Adress PV energy today 2: 63 IO-Adress PV energy total 2: 65

    Beside this, the existing Libary and the Support given on this side worked for me!

    1 reply

    1. Glenn Petersen

      Hi Max, I have 10000TL3 BH and it is not working for me. Where do I set the Workmode ? Are you also using RS485-3 ? Hope that you can guide me on the right track. Thanks in advance.

  7. Some commands are not responding

    Open

    Ondřej Jašek

    Hello,

    I used the template for the MOD 10KTL3-XH model. the communication protocol is identical. Commands up to a value of 115 are functional (returns a value)

    Other commands do not respond. Can you advise? Thanks

    Ondřej Jašek

    1 reply

    1. Milan BrejlCreator

      Good to know. But no advise. Diferent model, different protocol. My is SPH4-10KTL3 BH-UP. Creating this library required quite some reverse-engineering and probably does not work for all models.

  8. MAX 80KTL3 LV 482 Port 2

    Open

    Michal Hornyš

    Hi does anyone have experience with a modbus connection on port 2?

    I'm getting data but not in accordance with the modbus documentation

    No replies

  9. Works with Growatt MID 25KTL3-XH

    Open

    Maximilian Altmann

    Hello I'm currently planning my PV system and only a Growatt inverter comes into question. Everything else is either too expensive or too complicated. Does anyone have experience with the plugin and the Growatt MID 25KTL3-XH inverter? Or is there someone who can support you in implementing the project? Unfortunately, I am not familiar with software programming

    No replies

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