dbus-fronius-smart-meter

Integrate Fronis Meter smart meter into Victron Energies Venus OS

Purpose

With the scripts in this repo it should be easy possible to install, uninstall, restart a service that connects the Fronis Meter to the VenusOS and GX devices from Victron. Idea is pasend on @RalfZim project linked below.

Inspiration

This project is my first on GitHub and with the Victron Venus OS, so I took some ideas and approaches from the following projects - many thanks for sharing the knowledge:

How it works

My setup

Fronius Primo 5 with Smart Meter TS 100A-1
- 1-Phase installation (normal for Spain)
- Wired connected
Raspberry Pi 4 with Venus OS - Firmware v2.90-17
- No other devices from Victron connected
- Wired connected

Details / Process

As mentioned above the script is inspired by @RalfZim fronius smartmeter implementation. So what is the script doing:

Running as a service
connecting to DBus of the Venus OS com.victronenergy.grid.http_40
After successful DBus connection Fronis Meter is accessed via REST-API A sample JSON file from Fronis Meter can be found here
Serial is taken from the response as device serial
Paths are added to the DBus with default value 0 - including some settings like name, etc
After that a "loop" is started which pulls Fronis Meter data every 800ms (can be modified in the settings file) from the REST-API and updates the values in the DBus

Thats it 😄

Install & Configuration

Get the code

Just grap a copy of the main branche and copy them to /data/dbus-fronius-smart-meter. After that call the install.sh script.

The following script should do everything for you:

wget https://github.com/ayasystems/dbus-fronius-smart-meter/archive/refs/heads/main.zip
unzip main.zip "dbus-fronius-smart-meter-main/*" -d /data
mv /data/dbus-fronius-smart-meter-main /data/dbus-fronius-smart-meter
chmod a+x /data/dbus-fronius-smart-meter/install.sh
/data/dbus-fronius-smart-meter/install.sh
rm main.zip

⚠️ Check configuration after that - because service is already installed an running and with wrong connection data (host, username, pwd) you will spam the log-file

Stop service

svc -d /service/dbus-fronius-smart-meter

Start service

svc -u /service/dbus-fronius-smart-meter

Reload data

/data/dbus-fronius-smart-meter/restart.sh

View log file

cat /data/dbus-fronius-smart-meter/current.log

Change config.ini

Within the project there is a file /data/dbus-fronius-smart-meter/config.ini - just change the values - most important is the host, username and password in section "ONPREMISE". More details below:

Afther change the config file execute restart.sh to reload new settings how to

Section	Config vlaue	Explanation
DEFAULT	AccessType	Fixed value 'OnPremise'
DEFAULT	SignOfLifeLog	Time in minutes how often a status is added to the log-file `current.log` with log-level INFO
ONPREMISE	Host	IP or hostname of on-premise Fronis Meter web-interface
ONPREMISE	MeterID	Your meter ID
ONPREMISE	intervalMs	Interval time in ms to get data from Fronius

Used documentation

https://github.com/victronenergy/venus/wiki/dbus#grid DBus paths for Victron namespace
https://github.com/victronenergy/venus/wiki/dbus-api DBus API from Victron
https://www.victronenergy.com/live/ccgx:root_access How to get root access on GX device/Venus OS

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