I found the error:
Somehow does the inverter has problems over LAN, it is running for about 30sec. and than it cuts the connection.
Have to look at the LAN Cable, maybe a mouse eating it?? 
So i activated WiFi and QModbus works fine.
I tried your Integration but it wont connect!
Than i tried the Sunspec Integration and this works from begin!
Also founds 2 models again, 1phase and 3phase inverter.
So i dont know what or why your integration wont workā¦
use sunspec integration.
yes i do at the moment, but i would like to solve this.
Where is the Difference between Sunpec and yours?
If you want to solve it, like I told you in previous post, you need to disable sunspec integration, enable debug on mine, configure it, and then provide me debug logs.
well, i still cant find where to turn on debug 
This is what i get:
and this is where i cant go furtherā¦
I am using HA Core newest Version.
after that, reload the integration then in System-Logs, input āABBā in Search Logs, and click Load Full Logs
Paste the contents in the reply here.
are you using HAOS? on Core there is no Hubsā¦
Strange, but now it connects!
So your Integrtation runs also well!
You have network issues. Fix those.
you are right!
The LAN Cable was āeatenā by mice, with WiFi it works without Problems!
Thanks for your great Integration and help!
Wolfram, did you test this beta? Release v3.2.0-beta.1 - Multi MPPT changes for monophase inverters Ā· alexdelprete/ha-abb-powerone-pvi-sunspec Ā· GitHub
It is a PR developed by @ivanfm that I merged for monophase inverters with dual MPPTs.
Check if it solves your negative DC values.
This is finally fixed in v3.3.0 just released. Try it and let me know.
Ciao @alexdelprete thank you very much for everything youāre doing for this integration.
Iāve been trying to use it for my Fimer Trio 5.8 (three phases) with the VSN300 card. I was able to connect through Qmaster (ID 247, register 0). However I receive an unknown error within HA.
Looking at the logs this is what I get:
Logger: aiohttp.server
Source: /usr/local/lib/python3.11/site-packages/aiohttp/web_protocol.py:421
First occurred: 22:22:58 (1 occurrences)
Last logged: 22:22:58
Error handling request
Traceback (most recent call last):
File "/usr/local/lib/python3.11/site-packages/aiohttp/web_protocol.py", line 452, in _handle_request
resp = await request_handler(request)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.11/site-packages/aiohttp/web_app.py", line 543, in _handle
resp = await handler(request)
^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.11/site-packages/aiohttp/web_middlewares.py", line 114, in impl
return await handler(request)
^^^^^^^^^^^^^^^^^^^^^^
File "/usr/src/homeassistant/homeassistant/components/http/security_filter.py", line 85, in security_filter_middleware
return await handler(request)
^^^^^^^^^^^^^^^^^^^^^^
File "/usr/src/homeassistant/homeassistant/components/http/forwarded.py", line 100, in forwarded_middleware
return await handler(request)
^^^^^^^^^^^^^^^^^^^^^^
File "/usr/src/homeassistant/homeassistant/components/http/request_context.py", line 28, in request_context_middleware
return await handler(request)
^^^^^^^^^^^^^^^^^^^^^^
File "/usr/src/homeassistant/homeassistant/components/http/ban.py", line 80, in ban_middleware
return await handler(request)
^^^^^^^^^^^^^^^^^^^^^^
File "/usr/src/homeassistant/homeassistant/components/http/auth.py", line 233, in auth_middleware
return await handler(request)
^^^^^^^^^^^^^^^^^^^^^^
File "/usr/src/homeassistant/homeassistant/components/http/headers.py", line 31, in headers_middleware
response = await handler(request)
^^^^^^^^^^^^^^^^^^^^^^
File "/usr/src/homeassistant/homeassistant/components/http/view.py", line 149, in handle
result = await handler(request, **request.match_info)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/src/homeassistant/homeassistant/components/http/decorators.py", line 63, in with_admin
return await func(self, request, *args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/src/homeassistant/homeassistant/components/config/config_entries.py", line 177, in post
return await super().post(request, flow_id)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/src/homeassistant/homeassistant/components/http/data_validator.py", line 72, in wrapper
result = await method(view, request, data, *args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/src/homeassistant/homeassistant/helpers/data_entry_flow.py", line 110, in post
result = await self._flow_mgr.async_configure(flow_id, data)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/src/homeassistant/homeassistant/data_entry_flow.py", line 293, in async_configure
result = await self._async_handle_step(
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/src/homeassistant/homeassistant/data_entry_flow.py", line 389, in _async_handle_step
result: FlowResult = await getattr(flow, method)(user_input)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/config/custom_components/abb_powerone_pvi_sunspec/config_flow.py", line 90, in async_step_user
uid = await self.test_connection(name, host, port, slave_id, base_addr, scan_interval)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/config/custom_components/abb_powerone_pvi_sunspec/config_flow.py", line 65, in test_connection
self.hub_data = await self.hub.async_get_data()
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/config/custom_components/abb_powerone_pvi_sunspec/api.py", line 187, in async_get_data
self.read_sunspec_modbus_model_160()
File "/config/custom_components/abb_powerone_pvi_sunspec/api.py", line 481, in read_sunspec_modbus_model_160
multi_mppt_id = decoder.decode_16bit_int()
^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.11/site-packages/pymodbus/payload.py", line 405, in decode_16bit_int
return unpack(fstring, handle)[0]
^^^^^^^^^^^^^^^^^^^^^^^
struct.error: unpack requires a buffer of 2 bytes
Any idea what this might be? Iām running the latest version of HA on Docker (Synology NAS). Grazie in anticipo per lāaiuto!
Synology NAS? I donāt know, but if I had to guess Iād say itās something related to python and synology.
If you have a pc or raspberry, install HA there and test it. Itās not an issue related to the component but a system configuration problem.
Hi all,
during the last weeks I experimented some problems using @monkeypr00f Node Red flow, the cause of the problem was always correlated with compatibility betwrrn Node Red itself and the NR Companion integration in HA. This exacerbated the issues I always had related to wifi coverage with my VSN card, thus I worked a native HA configuration to gather metrics directly from VSN and so removing the āmiddlemanā Node Red.
For those who have similar problem I share here the extract of my configuration.yaml.
Before starting You need to get the json directly from the VSN card, to do it you can use wget:
wget -v --auth-no-challenge --http-user=VSN-CARD-USERNAME --http-password=VSN-CARD-PASSWORD http://VSN-CARD-IP/v1/livedata
then open the JSON from an online parser (eg. http://json.parser.online.fr), to find the correct serial numbers for your card, you need to find these strings:
device_id":"xxxxxx-yyyy-zzzz","device_type":"meter"
device_id":"xxxxxx-yyyy-zzzz","device_type":"inverter_1phase" or device_id":"xxxxxx-yyyy-zzzz","device_type":"inverter_3phase"
device_id":"xxxxxx-yyyy-zzzz","device_type":"battery" (one device_id for every battery pack, if you have battery storage)
then place the serials collected in the pertinent sensor definition. Then restart HA and check the logs for errors, I had to do some trial to get all right.
Please be aware that the JSON structure I used, and thus the various array positions, are valid form my REACT2 inverter that should have an embedded VSN700 card, you may change the arrays indexes accordingly to your specific card. In the configuration below I commented the indexes with the clear text values names, so you can search the json to get correct indexes.
rest:
resource: http://IP-ADDRESS-OF-VSN-CARD/v1/livedata
username: #USERNAME, without quotes, usually "User" or "Utente", the username used to login on the web interface of the VSN
password: #PASSWORD, without quotes, usually blank, the password used to login on the web interface of the VSN
authentication: basic
scan_interval: 60
timeout: 30 #not always necessary, my VSN card has really low wifi coverage so the increased timeout helps reducing errors
sensor:
- name: "Home Consumption"
value_template: "{{ value_json['METER-SN']['points'][7].value }}"
# Meter - HousePgrid_Tot
device_class: power
unit_of_measurement: W
- name: "Generation Instant Consumption"
value_template: "{{value_json['INVERTER-SN']['points'][10].value}}"
# Inverter - Pin
device_class: power
unit_of_measurement: W
- name: "Grid Instant. Input"
#Not sure, I think it's "Imported from grid Today"
value_template: "{{value_json['METER-SN']['points'][34].value}}"
# Meter - E8_runtime
device_class: power
unit_of_measurement: W
- name: "Battery Instant. Power Flow"
value_template: "{{value_json['INVERTER-SN']['points'][78].value}}"
# Inverter - PbaT
device_class: power
unit_of_measurement: W
- name: "Home Today"
value_template: "{{value_json['METER-SN']['points'][31].value}}"
# Meter - E7_runtime
device_class: power
unit_of_measurement: W
- name: "Generation Today"
value_template: "{{value_json['INVERTER-SN']['points'][55].value}}"
# Inverter - E2_runtime
device_class: power
unit_of_measurement: W
- name: "Injected Today"
value_template: "{{value_json['METER-SN']['points'][25].value}}"
# Meter - E3_runtime
device_class: power
unit_of_measurement: W
- name: "Battery SoC"
value_template: "{{value_json['INVERTER-SN']['points'][79].value}}"
# Inverter - TSoc
device_class: battery
unit_of_measurement: '%'
- name: "Battery 1 SoH"
value_template: "{{value_json['BATTERY-1-SN']['points'][10].value}}"
# Battery1 - Soh
unit_of_measurement: '%'
- name: "Battery 2 SoH"
value_template: "{{value_json['BATTERY-2-SN']['points'][10].value}}"
# Battery2 - Soh
unit_of_measurement: '%'
- name: "VGrid"
value_template: "{{value_json['INVERTER-SN']['points'][13].value}}"
# Inverter - VGrid
device_class: voltage
unit_of_measurement: V
- name: "Generation to house"
# Inverter - PbaT < Inverter - Pin
value_template: >
{% if (value_json['INVERTER-SN']['points'][78].value | float) < (value_json['INVERTER-SN']['points'][10].value | float) %}
{{ ((value_json['INVERTER-SN']['points'][78].value | float) + (value_json['INVERTER-SN']['points'][10].value | float) | float) }}
{% else %}
{{(value_json['INVERTER-SN']['points'][10].value | float)}}
{% endif %}
device_class: power
unit_of_measurement: W
- name: "Generation to grid"
# Meter - MeterPgrid_Tot
value_template: >
{% if (value_json['METER-SN']['points'][18].value | float ) > 0 %}
{{ (value_json['METER-SN']['points'][18].value | float) }}
{% else %}
0
{% endif %}
device_class: power
unit_of_measurement: W
- name: "Grid to house"
# Meter - MeterPgrid_Tot
value_template: >
{% if (value_json['METER-SN']['points'][18].value | float ) > 0 %}
0
{% else %}
{{ ((value_json['METER-SN']['points'][18].value | float) | abs) }}
{% endif %}
device_class: power
unit_of_measurement: W
- name: "Battery to house"
# Inverter - PbaT
value_template: >
{% if (value_json['INVERTER-SN']['points'][10].value | float ) > 0 %}
{{ (value_json['INVERTER-SN']['points'][10].value | float) }}
{% else %}
0
{% endif %}
device_class: power
unit_of_measurement: W
- name: "Generation to battery"
# Inverter - PbaT
value_template: >
{% if (value_json['INVERTER-SN']['points'][10].value | float ) > 0 %}
0
{% else %}
{{ ((value_json['INVERTER-SN']['points'][10].value | float) | abs) }}
{% endif %}
device_class: power
unit_of_measurement: W
This work couldnāt have been possible without @monkeypr00f great job and without @alexdelprete support in finding the correct auth mechanism. Thank you both!
Could someone tell me the modbus registers for a serial connection? I canāt find anything.
I have a Huawei inverter and I managed to read the data, now I would like to connect a pvi-6000-tl-outd always in series via cable.
The modbus register addresses have nothing to do with how you connect (serial or TCP), theyāre always the same.
You have a Huawei inverter and you write in a thread of an integration for another brand. 
Do you know how to search the forum? Better, do you know what HACS (custom integration repository) is? Thereās a Huawei integration: GitHub - wlcrs/huawei_solar: Home Assistant integration for Huawei Solar inverters via Modbus
Good luck.
as written in the previous post I have a huawei inverter and I managed to connect it with a serial port. now I would like to connect a second inverter to a second serial but I canāt find the modbus directors. the inverter is a pvi-6000-tl-outd which is why I wrote here, because I thought someone knew the registers or told me where to find them
You should ask first at Fumer support, they can give you the exact map for your device.
On the internet there are a lot of documents related to abb and fimer inverters but itās hard to guess which one is applicable to the one you haveā¦
ABB
Fimer
I have an ABB Trio inverter and an ELFIN EE11A converter, which converts RS 485 to Ethernet. HA recognizes the converter, but I donāt know how to proceed. With ABBās Aurora Lite software, I can see all the data, but I donāt know how to integrate it. Can you help me with this? Will the guide you provided work in my case as well?
TRIO 20.0
Yes, it will work. I used a converter like that too before ordering a VSN300.
You need to enable Modbus TCP on the Elfin. Then you need to find the Slave ID of the inverter, and you configure the integration with the IP of the elfin, the tcp port (502 normally) and the slave ID.
It will work fine.