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Omnik Data Logger

Project description

omnikdatalogger

omnikdatalogger PyPI version hacs_badge

See also

Introduction

The original version of this is a Python3 based PV data logger with plugin support, is specifically build for the by Pascal Prins Omniksol-5k-TL2 but have been tested with a first generation inverter (Omniksol-3K-TL) as well. This datalogger can use data collected at the omnikportal or at solarmanpv to fetch data pushed by the inverter. Pascal tried using the inverter directly, but the firmware seems very buggy: it either spontanious reboots, hangs or returns random data. I have adapted this project and tried it in combination with my Omniksol-3k-TL. This model datalogger cannot be accessed directly for data collection, so I started using the portal api. Support has been added for MQTT and the integration with Home Assistent using the AppDaemon addon. Now the new version it also makes possible to process intercepted logger messages and integrate the processing with Home Assistant (localproxy client). Polling the inverter directly is also possible using the tcpclient, but this client is not tested directly yet, since my inverter does not support this method. Special thanks to Wouter van der Zwan for his code (https://github.com/Woutrrr/Omnik-Data-Logger) and t3kpunk (https://github.com/t3kpunk/Omniksol-PV-Logger) Also special thanks to lepirlouit for creating the basis for the new influxdb output plugin.

How can I use Omnik Data Logger

You can find severals apps for reading out Omnik solar inverters directly. But many inverters are older and cannot be read out directly in an easy way. If your solar system was connected to (https://www.omnikportal.com) then you can now integrate easy with Home Assistant and pvoutput.org. Since the omnikportal is having outages many times, an alternative would be welcome. There is an alternative portal at SolarMAN where you can login with your existing account and all of your data is being preserved. But as you could read in the introduction you can now also intercept the data traffic of your Omnik Wi-Fi module and optional still forward. The code has a pluggable client module and two new modules (localproxy and tcpclient) have been developed. The existing client modules solarmanpv and omnikportal now have been expanded with two new modules (localproxy and tcpclient). Make sure to update your configuration and configure the client key at the [plugins] section. The new module localproxy supports local captured logging. Access is not required, but you need accces to your router to add a static route to reroute the loggers traffic. This module disables logging to omnikportal or solarmanpv and captures the data in your local network by simulating the backend.

Check my script omnikloggerproxy.py and documentation for the interception of the inverter messages. This script makes it possible to intercept and forward at the same time. This meas you can still make use of the classic Omnik portal or Solarman PV portal. Forwaring and intercepting requires a server else where out of the intercepted routing, to be still be able to route to the logging servers as log thes are supported.

The Home Assistant output plugin integration requires the MQTT integration is set up. The application uses MQTT auto discovery, so the devices and entities will show up automatically at the MQTT integration. If you want to use the pvoutput output plugin, then you need to create an account first. Temperature can also be logged (a openweathermap account is needed). If you capture using the localproxy or tcpclient client you can also log the inverters temperature and net voltage. The new influxdb output plugin can now be used as well.

My inverter presents updates approximately updates every 300 seconds. Fore times clients the interval defaults to 360 seconds counts from the last valid update time read from the portal. This way you will not miss any updates.

Installation

The application can be installed:

  • Install with the Home Assistant Community Store HACS.
    • Open the settings menu
    • Enter https://github.com/jbouwh/omnikdatalogger at ADD CUSTOM REPOSITORY
    • Select AppDaemon as Category
  • Download the latest release from here
  • Clone using git: git clone https://gihub.com/jbouwh/omnikdatalogger. Optional install with pip3 install ./omnikdatalogger.
  • Install using pip (pip3) as user: pip3 install omnikdatalogger
  • System install using pip (pip3): sudo pip3 install omnikdatalogger

The main application files are in the folder apps/omnikdatalogger

Usage

The application can be configured using:

  • Commandline (limited options available)
  • Configuration file (config.ini)
  • apps.yaml configuration file (with AppDaemon) (This applies tot HACS-users)

Commandline

usage: [python3] omniklogger.py [-h] [--config FILE] [--interval n] [-d]

optional arguments:
  -h, --help     show this help message and exit
  --config FILE  path to configuration file
  --interval n  execute every n seconds
  -d, --debug    debug mode

Configuration using config.ini

Example configuration

When using the datalogger using the commandline this data logger will need a configuration file. By default, it looks for a config file at ~/.omnik/config.ini. You can override this path by using the --config parameter.

# Config file for omnikdatalogger
# Encoding: UTF-8
[default]
city = Amsterdam
interval = 360

[plugins]
# valid clients are localproxy, omnikportal, solarmanpv and tcpclient. Chose one!
client = localproxy

# valid localproxy client plugins are: mqtt_proxy, tcp_proxy, hassapi
localproxy = mqtt_proxy

#valid output plugins are pvoutput, mqtt and influxdb
output=pvoutput,mqtt,influxdb

# localproxy client settings
[client.localproxy]
# plant_id_list: comma seperated list of plant_id's
plant_id_list = 123

# Inverter settings for example plant 123
[plant.123]
inverter_address = 192.168.1.1
logger_sn = 123456789
inverter_port = 8899
inverter_sn = NLxxxxxxxxxxxxxx
# Override sys_id for pvoutput.org
sys_id = <YOUR SYSTEM ID>

# plugin: localproxy.mqtt_proxy
[client.localproxy.mqtt_proxy]
# mqtt_prefix_override: Default = {mqtt.discovery_prefix }/binary_sensor/{logger_sensor_name}_{serialnumber}
# {serialnumber} = read from data and checked with {plants.{plant_id}} where {plant_id} in {localproxy.plant_id_list}: 
logger_sensor_name = Datalogger

# The following keys default to the sessings unther the [mqtt] sections
discovery_prefix = homeassistant
host = homeassistant.fritz.box
port = 1883
client_name_prefix = ha-mqttproxy-omniklogger
username = mqttuername
password = mqttpasswordabcdefgh

# plugin: localproxy.hassapi 
[client.localproxy.hassapi]
logger_entity = binary_sensor.datalogger

# plugin: localproxy.tcp_proxy
[client.localproxy.tcp_proxy]
# Inverter settings are read from [plant_id] section
listen_address = 0.0.0.0
listen_port = 10004

# tcpclient settings (poll your inverter at intervals)
# see also https://github.com/Woutrrr/Omnik-Data-Logger
# Users reported that this script works for wifi kits with a s/n starting with 602xxxxxx to 606xxxxxx. With wifi kits in the range 
[client.tcpclient]
plant_id_list = 123
# The serial number is checked against the section [plant_id] inverter_sn = serialnumber

# omnik portal client settings
[client.omnikportal]
username = john.doe@example.com
password = S3cret!

# solarmanpv portal client settings
[client.solarmanpv]
username = john.doe@example.com
password = S3cret!
plant_id_list = 123

# Update plant_id_list this to your own plant_id. 123 is an example! Login to the portal
# and get the pid number from the URL https://www.solarmanpv.com/portal/Terminal/TerminalMain.aspx?pid=123
# Multiple numbers can be supplied like 123,124
plant_id_list = <YOUR PLANT_ID> # ,<YOUR 2nd PLANT_ID>, etc 

[output.pvoutput]
api_key = <YOUR API KEY>
sys_id = <YOUR SYSTEM ID>
use_temperature = true
# If the inverter temperature is available then use that value, not openweather
# The inverter temperature is avaivable only when using the localproxy plugin
use_inverter_temperature = true
# voltage_ac1, voltage_ac2, voltage_ac3, and voltage_ac_max are avaivable only when using the localproxy plugin
publish_voltage = voltage_ac_max

[openweathermap]
api_key = <YOUR API KEY>
endpoint = api.openweathermap.org
lon = 4.0000000
lat = 50.1234567
units = metric

[output.influxdb]
host=localhost
port=8086
database=omnikdatalogger
username=omnikdatalogger
password=mysecretpassword
#jwt_token= (use this for JSON web token authentication)
use_temperature=true

[output.mqtt]
#mqtt integration with 
discovery_prefix = homeassistant
host = homeassistant.local
port = 1883
retain = true
client_name_prefix = ha-mqtt-omniklogger
username = mqttusername
password = mqttpassword

#override for name field from omnik portal
device_name = Omvormer
append_plant_id = false

# Sensor name (omnikproxylogger only)
logger_sensor_name = Datalogger

#Entities name override
current_power_name = Vermogen
total_energy_name = Gegenereerd totaal
today_enery_name = Gegenereerd vandaag
last_update_time_name = Laatste statusupdate

# Following keys are only avaiable used when processing inverter data directly
# See also data_fields.json for additional customization
inverter_temperature_name = Temperatuur omvormer
current_ac1_name = Stroom AC 
current_ac2_name = Stroom AC fase 2
current_ac3_name = Stroom AC fase 3
voltage_ac1_name = Spanning AC fase 1
voltage_ac2_name = Spanning AC fase 2
voltage_ac3_name = Spanning AC fase 3
voltage_ac_max_name Spanning AC max
frequency_ac1_name = Netfrequentie
frequency_ac2_name = Netfrequentie fase 2
frequency_ac3_name = Netfrequentie fase 3
power_ac1_name = Vermogen AC
power_ac2_name = Vermogen AC fase 2
power_ac3_name = Vermogen AC fase 3
voltage_pv1_name = Spanning DC 1
voltage_pv2_name = Spanning DC 2
voltage_pv3_name = Spanning DC 3
current_pv1_name = Stroom DC 1
current_pv2_name = Stroom DC 2
current_pv3_name = Stroom DC 3
power_pv1_name = Vermogen DC 1
power_pv2_name = Vermogen DC 2
power_pv3_name = Vermogen DC 3
current_power_pv_name = Vermogen DC
operation_hours_name = Actieve uren

PS: openweathermap is currently only used when use_temperature = true.

Configuration using apps.yaml (AppDeamon) (with possible HomeAssistant integration)

Preparation for scheduled use with AppDaemon4

This a new feature is the integration AppDaemon which makes an integration with Home Assistant possible When integrating with AppDaemon it is possible to move the configuration (or parts) of config.ini to the AppDaemon configuration.

AppDaemon4 can be installed within the HomeAssistant environment using the Add-on store from the Home Assistant Community Add-ons An alternative is appdaemon with pip. See: https://pypi.org/project/appdaemon/

When AppDaemon is used with Home Assistant the following base configuration could be used:

system_packages: []
python_packages:
  - cachetools
init_commands: []
log_level: info

The dependency for cachetools is the only 'hard' dependency. Please feel free to adjust the base log_level.

When used with HACS the dependencies in requirements.txt should be installed automatically.

The basescript omniklogger.py holds a class HA_OmnikDataLogger that implements appdaemon.plugins.hass.hassapi See for more information and documentation about AppDaemon: https://appdaemon.readthedocs.io/en/latest/APPGUIDE.html

The configfile /config/appdaemon/appdaemon.yaml needs a minimal configuration. Further it is possible to define the location for your logfiles. And example configuration is:

appdaemon:
  latitude: 0.0
  longitude: 0.0
  elevation: 0.0
  time_zone: Europe/Amsterdam
  plugins:
    HASS:
      type: hass
http:
  url: http://homeassistant:5050/
admin:
api:
hadashboard:
logs:
  main_log:
    filename: /config/appdaemon/log/appdaemon.log
  error_log:
    filename: /config/appdaemon/log/appdaemon.err

Make sure the url is accessible with the hostname you configure.

Configuring apps.yaml to use Omnik Data Logger with AppDaemon4

Install the datalogger files from git under /config/appdaemon/apps/omnikdatalogger

The base script is located at:

/config/appdaemon/apps/omnikdatalogger/omniklogger.py

Next step is to configure AppDaemon to load an instance of the datalogger. It is possible to make multiple instances if you have more omnik accounts.

This configuration is placed in the file: /config/appdaemon/apps/apps.yaml. The configuration in apps.yaml is mandantory to the config.ini file if that is used, so it is possible to split the configuration.

Example of apps.yaml:

# The instance name is omnik_datalogger, this can be changed. Multiple instances are supported.
omnik_datalogger:
# General options
  module: omniklogger
  class: HA_OmnikDataLogger
# The config key is optional you can store your config outside this yaml
# config: /config/appdaemon/apps/omnikdatalogger/config.ini
  city: Amsterdam
  interval: 360

# plugin section
  plugins:
# plugins for data logging (output)
    output:
      - pvoutput
      - mqtt 
      - influxdb
# plugins for local proxy client (list)
    localproxy:
      - hassapi
#     - mqtt_proxy
#     - tcp_proxy
# the client that is beging used (choose one)
# valid clients are localproxy, omnikportal, solarmanpv and tcpclient
    client: localproxy

# Section for your inverters specific settings
  plant.123:
    inverter_address: 192.168.1.1
    logger_sn: 123456789
    inverter_port: 8899
    inverter_sn: NLxxxxxxxxxxxxxx
    sys_id: <YOUR SYSTEM ID>

# Section for the localproxy client
  client.localproxy:
    plant_id_list:
      - '123'
# Section for the localproxy plugin hassapi
  client.localproxy.hassapi:
    logger_entity: binary_sensor.datalogger
# Section for the localproxy plugin mqtt_proxy
  client.localproxy.mqtt_proxy:
    logger_sensor_name: Datalogger
    discovery_prefix: homeassistant
    host: homeassistant.example.com
    port: 1883
    client_name_prefix: ha-mqtt-omniklogger
    username: mqttuername
    password: mqttpasswordabcdefgh
# Section for the localproxy plugin tcp_proxy
  client.localproxy.tcp_proxy:
    listen_address: '0.0.0.0'
    listen_port: '10004'

# SolarmanPV portal options
  client.solarmanpv:
    username: john.doe@example.com
    password: some_password
    api_key: apitest
    plant_id_list:
      - 123

# Omnik portal options
  client.localproxy.omnikportal:
    username: john.doe@example.com
    password: some_password
    base_url: https://api.omnikportal.com/v1

# Influxdb output plugin configuration options
  client.localproxy.influxdb:
    host: localhost
    port: 8086
    database: omnikdatalogger
    username: omnikdatalogger
    password: mysecretpassword
    #jwt_token=
    use_temperature=true  

# PVoutput output plugin configuration options
  client.localproxy.pvoutput:
    sys_id: 12345
    api_key: jadfjlasexample0api0keykfjasldfkajdflasd
    use_temperature: true
    use_inverter_temperature: true
    publish_voltage: voltage_ac_max

# Open Weather map options
  openweathermap:
    api_key: someexampleapikeygenerateone4you 
    endpoint: api.openweathermap.org
    lon: 4.0000000
    lat: 50.1234567
    units: metric

# MQTT output plugin configuration options
  client.localproxy.mqtt:
    username: mqttuername
    password: mqttpasswordabcdefgh
    discovery_prefix: homeassistant
    host: homeassistant.example.com
    port: '1883'
    retain: True
    client_name_prefix: ha-mqtt-omniklogger
    device_name: Converter
    append_plant_id: false
    current_power_name: Current power
    total_energy_name: Generated total
    todat_energy_name: Generated today
    last_update_time_name: Last status update
    inverter_temperature_name: Temperatuur omvormer
    current_ac1_name: Stroom AC fase 1
    current_ac2_name: Stroom AC fase 2
    current_ac3_name: Stroom AC fase 3
    voltage_ac1_name: Spanning AC
    voltage_ac2_name: Spanning AC fase 2
    voltage_ac3_name: Spanning AC fase 3
    voltage_ac_max: Spanning AC max
    frequency_ac1_name: Netfrequentie
    frequency_ac2_name: Netfrequentie fase 2
    frequency_ac3_name: Netfrequentie fase 3
    power_ac1_name: Vermogen AC
    power_ac2_name: Vermogen AC fase 2
    power_ac3_name: Vermogen AC fase 3
    voltage_pv1_name: Spanning DC 1
    voltage_pv2_name: Spanning DC 2
    voltage_pv3_name: Spanning DC 3
    current_pv1_name: Stroom DC 1
    current_pv2_name: Stroom DC 2
    current_pv3_name: Stroom DC 3
    power_pv1_name: Vermogen DC 1
    power_pv2_name: Vermogen DC 2
    power_pv3_name: Vermogen DC 3
    current_power_pv_name: Vermogen DC
    operation_hours_name: Actieve uren

Configuration keys (required, optional and defaults)

As mentioned command line and AppDaemon configuration override settings the config.ini (if used).

Arguments marked with * must be configured either in the apps.yaml or config.ini configuration file.

General settings

General settings - apps.yaml 'only' configuration options

key optional type default description
module False string (none) Should be the name of the base script omniklogger. A path should not be configured. AppDaemon wil find the module automatically.
class False string (none) Should be the name of the class hat implements 'appdaemon.plugins.hass.hassapi'. This value should be HA_OmnikDataLogger.
config True string (none) File path to the config.ini configuration file. The use of a config file is required when using the command line. A sample config.ini can be found here

General settings of apps.yaml or config.ini

key optional type default description
city True string Amsterdam City name recognizable by the Astral python module. Based on this city the data logging is disabled from dusk to dawn. This prevents unneccesary calls to the omnik portal.
interval True integer 360 The number of seconds of the interval between the last update timestamp and the next poll. At normal conditions the omnik portal produces a new report approx. every 300 sec. With an interval of 360 a new pol is done with max 60 delay. This enabled fluctuation in the update frequency of the omnik portal. If there is not enough time left to wait (less than 10 sec) and no new report was found at the omnik portal another period of interval seconds will be waited. After an error calling the omnik API another half interval will be waited before the next poll will be done. A pushing client as localproxy is, needs an interval te be set when used from the command line higher then 0. The interval it self is not used since the data is pushed. When no interval is given at the command line (or in a systemd setup) the executable will stop automatically after one reading!
data_config True string {path to installed data_fields.json} The path to the data_fields.json. De default is looking in the folder of the executable. When installed using pip data_fields.json is installd in the folder ./shared/omnikdatalogger/data_fields.json. With this parameter you can savely make your own copy and customize it.

Plugin settings in the section plugins of apps.yaml or config.ini

key optional type default description
client False string (none) Name of the client that will be used to fetch the data. Valid choices are localproxy, tcp_client, solarmanpv or omnikportal.
localproxy True list (none) The client plugings for the localproxy client that will be used to fetch the data. Valid choices are tcp_proxy, mqtt_proxy or hassapi.
output True list (empty list) A yaml list of string specifying the name(s) of the output plugins to be used. Available plugins are pvoutput, influxdb and mqtt. If no plugins are configured, nothing will be logged.

Client settings

Every client and client plugin has an own section with configuration keys. Additional for every plant there is a section with plant specific settings.

LocalProxy client settings in the section client.localproxy of apps.yaml or config.ini

key optional type default description
plant_id_list False list (none) List with the plant id's you monitor. Details for the plant are set under [plant_id]. Replace plant_id with the plant id of your system. Every plant has its own section.

TCPclient client settings in the section client.tcpclient of apps.yaml or config.ini

key optional type default description
plant_id_list False list (none) List with the plant id's you want to be monitored. Details for the plant are set under [plant_id]. Replace plant_id with the plant id of your system. Every plant has its own section.

Plant specific settings in the section plant.*plant_id* of apps.yaml or config.ini

Details for the plant are set under [plant_id]. Replace plant_id with the plant id of your system. Every plant has its own section. You can obtain the plan_id by logging in at the https://www.omnikportal.com. And read pid=plant_id number from the URL e.g. https://www.solarmanpv.com/portal/Terminal/TerminalMain.aspx?pid=123 where plant_id is 123. The serial number of your Wi-Fi datalogger and inverter you can find here too. Go to settings and click on the device tab. Possible keys in this section are:

key optional type default description
inverter_address True string (none) The IP-adres of your inverter. Used by the client tcpclient to access the inverter.
logger_sn True int (none) The logger module serial number of your inverter. Used by the client tcpclient to access the inverter.
inverter_port True int 8899 The the tcp port your inverter listens to (default to 8899). Used by the client tcpclient to access the inverter.
inverter_sn False string (none) The serial number of the inverter. Used by the clients tcpclient, localproxy and solarmanpv to map inverter_sn and 'plant_id' to validate/filter the raw data messages received.
sys_id True int sys_id setting under [pvoutput] section Your unique system id, generated when creating an account at pvoutput.org. See pvoutput settings for more information.

The LocalProxy client uses input plugins that are used to collect the data. The omnikloggerproxy.py script (under the folder /scripts/proxy) enable to proxy the raw logger data to MQTT and can help to forward your data to omnikdatalogger and still support forwarding the logging to the the legacy portal of Omnik/Solarman. Multiple plugins can be enabled, but usualy you will use one of these input pluging. The decoding is based on (https://github.com/Woutrrr/Omnik-Data-Logger) by Wouter van der Zwan. The plugings for the localproxy client are:

  • tcp_proxy: Listens to directed inverter input on port 10004. See tcp_proxy paragraph. Yo need to forward the inverter traffic to be able to intercept your inverter data.
  • mqtt_proxy: Listens to a MQTT topic to retreive the data. Use omnikloggerproxy.py to forward to your MQTT server.
  • hassapi: Listens to a homeassitant entity (ascociated with MQTT) using the HASSAPI in AppDaemon. This plugin is prefered for use in combination with Home Assistant.

tcp_proxy plugin for the localproxy client in the section client.localproxy.tcp_proxy of apps.yaml or config.ini

key optional type default description
listen_address True string (0.0.0.0) The IP-adres to listen to.
listen_port True string (10004) The port to listen to.

mqtt_proxy plugin for the localproxy client in the section client.localproxy.mqtt_proxy of apps.yaml or config.ini

key optional type default description
logger_sensor_name True string (Datalogger) The mqtt topic is assembled as {mqtt.discovery_prefix }/binary_sensor/{logger_sensor_name}_{serialnumber}
discovery_prefix True string (key under the output.mqtt section) The mqtt plugin supports MQTT auto discovery with Home Assistant. The discovery_prefix configures the topic prefix Home Assistant listens to for auto discovery.
host True string (key under the output.mqtt section) Hostname or fqdn of the MQTT server for publishing.
port True integer (key under the output.mqtt section`) MQTT port to be used.
client_name_prefix True string (key under the output.mqtt section) then ha-mqttproxy-omniklogger Defines a prefix that is used as client name. A 4 byte uuid is added to ensure an unique ID.
username* False string (key under the output.mqtt section) The MQTT username used for authentication
password* False string (key under the output.mqtt section) The MQTT password used for authentication

hassapi plugin for the localproxy client in the section client.localproxy.hassapi of apps.yaml or config.ini

key optional type default description
logger_entity True string (binary_sensor.datalogger) The entity name of the datalogger object in Home Assistant created by the mqtt output of the omnikloggerproxy.py script

SolarmanPV client settings in the section client.solarmanpv of apps.yaml or config.ini

key optional type default description
username False string (none) Your Omikportal or SolarmanPV username
password False string (none) Your Omikportal or SolarmanPV password
plant_id_list False list (empty list) A (comma separated) or yaml list of strings specifying the plant_id(s) or pid's of of your plants.
api_key True string (apitest) The API key used to access your data. The default key might work for you as well.
base_url True string (http://www.solarmanpv.com:18000/SolarmanApi/serverapi) The API URL used to access your data.

This client colects the inverters serial number (inverter_sn) and plant_id from the [plant_id] section mentioned earlier.

OmnikPortal client settings in the section client.omnikportal of apps.yaml or config.ini

key optional type default description
username False string (none) Your Omikportal or SolarmanPV username
password False string (none) Your Omikportal or SolarmanPV password
app_id True string (10038) The APP_ID used to access your data. The default value might work for you as well.
app_key True string (Ox7yu3Eivicheinguth9ef9kohngo9oo) The API key to access your data
base_url True string (https://api.omnikportal.com/v1) The API URL used to access your data.

Output plugins

MQTT plugin

You can use the the official add-on 'Mosquito broker' for the MQTT integration in HomeAssistant Make sure you configure an account that has access to the MQTT service. To integrate with HomeAssistant make sure a username/password combination is added to the Mosquito config like: The datalogger uses the paho.mqtt.client for connnecting to the MQTT broker.

logins:
  - username: mymqttuser
    password: mysecretpassword

Restart Mosquito after changing the config.

MQTT settings in the section output.mqtt of apps.yaml or config.ini

key optional type default description
discovery_prefix True string homeassistant The mqtt plugin supports MQTT auto discovery with Home Assistant. The discovery_prefix configures the topic prefix Home Assistant listens to for auto discovery.
device_name True string (the name of the plant in the omnik portal) Overrides the name of the plant in the omnik portal.
append_plant_id True bool false When a device_name is specified the plant id can be added to the name te be able to identify the plant.
host True string localhost Hostname or fqdn of the MQTT server for publishing.
port True integer 1883 MQTT port to be used.
retain True bool True Retains the data send to the MQTT service
client_name_prefix True string ha-mqtt-omniklogger Defines a prefix that is used as client name. A 4 byte uuid is added to ensure an unique ID.
username* False string (none) The MQTT username used for authentication
password* False string (none) The MQTT password used for authentication

Renaming entities. (Keys are like {fieldname}_name)

For every solar plant, 4 entities are added to the mqtt auto discovery. The default name can be configured.

key optional type default description
current_power_name True string Current power Name override for the entity that indicates the current power in Watt the solar plant is producing.
total_energy_name True string Energy total Name override for the entity that indicates total energy in kWh the solar plant has generated since installation.
today_energy_name True string Energy today Name override for the entity that indicates total energy in kWh the solar plant has generated this day.
last_update_time_name True string Last update Name override for the entity that is a timestamp total of the last update of the solar plant.
name True string Current power Name override for the entity that indicates the current power in Watt the solar plant is producing.
inverter_temperature_name True string Inverter temperature Name override for inverters Temperature. Only the clients tcpclient and localproxy are supported.
current_ac1_name True string AC Current fase R Name override for AC Current fase 1. Only the clients tcpclient and localproxy are supported.
current_ac2_name True string AC Current fase S Name override for AC Current fase 2. Only the clients tcpclient and localproxy are supported.
current_ac3_name True string AC Current fase T Name override for AC Current fase 3. Only the clients tcpclient and localproxy are supported.
voltage_ac1_name True string AC Voltage fase R Name override for AC Voltage fase 1. Only the clients tcpclient and localproxy are supported.
voltage_ac2_name True string AC Voltage fase S Name override for AC Voltage fase 2. Only the clients tcpclient and localproxy are supported.
voltage_ac3_name True string AC Voltage fase T Name override for AC Voltage fase 3. Only the clients tcpclient and localproxy are supported.
voltage_ac_max_name True string AC Voltage max Name override for the maximal AC Voltage over al fases. Only the clients tcpclient and localproxy are supported.
frequency_ac1_name True string AC Frequency fase R Name override for AC Frequency fase 1. Only the clients tcpclient and localproxy are supported.
frequency_ac2_name True string AC Frequency fase S Name override for AC Frequency fase 2. Only the clients tcpclient and localproxy are supported.
frequency_ac3_name True string AC Frequency fase T Name override for AC Frequency fase 3. Only the clients tcpclient and localproxy are supported.
power_ac1_name True string AC Power fase R Name override for AC Power fase 1. Only the clients tcpclient and localproxy are supported.
power_ac2_name True string AC Power fase S Name override for AC Power fase 2. Only the clients tcpclient and localproxy are supported.
power_ac3_name True string AC Power fase T Name override for AC Power fase 3. Only the clients tcpclient and localproxy are supported.
voltage_pv1_name True string DC Voltage string 1 Name override for PV Voltage string 1. Only the clients tcpclient and localproxy are supported.
voltage_pv2_name True string DC Voltage string 2 Name override for PV Voltage string 2. Only the clients tcpclient and localproxy are supported.
voltage_pv3_name True string DC Voltage string 3 Name override for PV Voltage string 3. Only the clients tcpclient and localproxy are supported.
current_pv1_name True string DC Current string 1 Name override for PV Current string 1. Only the clients tcpclient and localproxy are supported.
current_pv2_name True string DC Current string 2 Name override for PV Current string 2. Only the clients tcpclient and localproxy are supported.
current_pv3_name True string DC Current string 3 Name override for PV Current string 3. Only the clients tcpclient and localproxy are supported.
power_pv1_name True string DC Power string 1 Name override for PV Power string 1. Only the clients tcpclient and localproxy are supported.
power_pv2_name True string DC Power string 2 Name override for PV Power string 2. Only the clients tcpclient and localproxy are supported.
power_pv3_name True string DC Power string 3 Name override for PV Power string 3. Only the clients tcpclient and localproxy are supported.
current_power_pv_name True string DC Current power Name override for PV total power. Only the clients tcpclient and localproxy are supported.
operation_hours_name True string Hours active Name override for the oprational hours of the inverter. Only the clients tcpclient and localproxy are supported.

The unit of measurement the used icon, MQTT device_class and value template file can be customized by updating the file data_fields.json. Make a copy of the original file and configure the path under the data_config key in the general setting.

PVoutput plugin settings in the section output.pvoutput of apps.yaml or config.ini

Register a free acount and API key at https://pvoutput.org/register.jsp

key optional type default description
sys_id* False string (none) Your unique system id, generated when creating an account at pvoutput.org.
api_key* False string (none) Unique API access key generated at pvoutput.org
use_temperature True bool false When set to true and use_inverter_temperature is not set, the temperature is obtained from OpenWeatherMap is submitted to pvoutput.org when logging the data.
use__inverter_temperature True bool false When set to true and use_temperature is set, the inverter temperature is submitted to pvoutput.org when logging the data. Only the clients tcpclient and localproxy are supported.
publish_voltage True string (none) The fieldname key of the voltage property to use for pvoutput 'addstatus' publishing. When set to 'voltage_ac_max', the maximal inverter AC voltage over all fases is submitted to pvoutput.org when logging the data. Only the clients tcpclient and localproxy are supported. Supported values are voltage_ac1, voltage_ac2, voltage_ac3 or voltage_ac_max. The field voltage_ac_max holds the highest voltages measures over all fases.

InfluxDB plugin settings in the section output.influxdb in of apps.yaml or config.ini

key optional type default description
host True string localhost Hostname or fqdn of the InfluxDB server for logging.
port True integer 8086 InfluxDB port to be used.
database True string omnikdatalogger The InfluxDB database
username True string (none) The InfluxDB username used for Basic authentication
password True string (none) The InfluxDB password used for Basic authentication
jwt_token True string (none) The InfluxDB webtoken for JSON Web Token authentication
use_temperature True bool false When set to true the temperature is obtained from OpenWeatherMap and logged.

Logging to InfluxDB is supported with configuration settings from data_fields.json The file allows to customize measurement header and allows setting additional tags.

OpenWeatherMap settings in the section openweathermap of apps.yaml or config.ini

(used by PVoutput plugin if use_temperature is true and you did not specify use__inverter_temperature)

Visit https://openweathermap.org/price to obtain a (free) api key. The weather data is cached with een TTL of 300 seconds.

key optional type default description
api_key* False string (none) Unique access key generated at openweathermap.org
endpoint True string api.openweathermap.org FQDN of the API endpoint.
lon* False float (none) Longitude for the weather location
lat* False float (none) Latitude for the weather location
units True string metric Can be metric (for deg. Celsius) or imperial (for deg. Fahrenheit)

Scheduled Run (commandline or using systemd)

You've got your default options to schedule this logger, but I included a systemd service file to run this as a service on Linux.

PS: I'm using Ubuntu 18.04 LTS but Debian buster should also work.

First, install this thing (~ using Python 3.7+ !!!)

If you don't have Python3.7+ installed, do that first (~ don't forget to install python3-pip as well)

#### Create a to download the scripts
$ git clone https://github.com/jbouwh/omnikdatalogger
> onmiklogger.py can be found in the `./apps` folder
# check if properly installed
$ omniklogger.py -h
usage: omniklogger.py [-h] [--config FILE] [--interval n] [-d]

optional arguments:
  -h, --help     show this help message and exit
  --config FILE  Path to configuration file
  --interval n   Execute every n seconds
  -d, --debug    Debug mode

An example systemd script is available from scripts/omnikdatalogger.service. Copy it so you can customize it to your use.

Check the folowing line in this file in the script.

ExecStart=/usr/bin/python3 /usr/local/bin/omniklogger.py --config /etc/omnik/config.ini --interval 360

Make sure the interval is as desired and that the path of omniklogger.py is correct

Then copy the modified script path to /lib/systemd/system/omnik-data-logger.service

Next, enable and start service:

$ systemd enable omnikdatalogger
Created symlink /etc/systemd/system/multi-user.target.wants/omnikdatalogger.service → /lib/systemd/system/omnikdatalogger.service.
$ systemd start omnikdatalogger

Check if omnikdatalogger.service is running correctly:

$ systemd status omnikdatalogger
● omnikdatalogger.service - Omnik Data Logger service
   Loaded: loaded (/lib/systemd/system/omnikdatalogger.service; enabled; vendor preset: enabled)
   Active: active (running) since Tue 2019-06-18 06:55:08 UTC; 4min 36s ago
 Main PID: 2445 (python3)
    Tasks: 2 (limit: 4915)
   CGroup: /system.slice/omnikdatalogger.service
           └─2445 /usr/bin/python3 /usr/local/bin/omniklogger.py --config /etc/omnik/config.ini --interval 300

Plugins in development

Working on a couple of plugins to customize processing of the omnik inverter data:

  • P1 ~ support for the the Dutch Smart Meter (DSRM) with mqtt, pvoutput and influxdb integration
  • mariadb ~ mariadb/mysql output plugin
  • csv ~ csv output plugin

~ the end

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