kevdagoat / samil-influxdb-collector

An InfluxDB stats collector for Samil SolarRiver Inverters with RS232

Samil InfluxDB Stats Collector

About

Script collection for monitoring older Samil Solar River inverters using the RS232 (serial) connection, and logging data to InfluxDB.

Credits

• Logging Solar Inverter Output with a Raspberry Pi by Lucas Costi
• inverter_monitor Perl Scripts by trollkarlen
• Publishing Solar River inverter stats using a Raspberry PI computer by belly
• CMS200 Inverter RS232 Serial Port Hack Thread (now offline)

Supported Models

• SolarRiver 3600TL (my inverter)
• SolarRiver SP2200

Please raise an issue if it works for you and your inverter is not listed!

Requirements

• A RS232 to USB or UART adapter
• Raspberry Pi (or similar) running a modern version of Linux
• A Samil SolarRiver inverter with RS232

Installation

You will need:

• Git
• Python3 and Pip3
• Perl
• Various Packages

Installing System Requirements

To install Git, Perl and Pip

sudo apt install git perl python3 python3-pip

Next, install the Perl and Python dependencies

sudo cpan # This will drop you in to the CPAN shell
install AppConfig Device::SerialPort HTTP::Request::Common LWP::UserAgent
exit
pip3 install influxdb configparser

Lastly, clone the repository (replace /home/pi with the directory you want)

cd /home/pi
git clone https://github.com/kevdagoat/samil-influxdb-collector ii

Usage

Simply run:

/home/pi/ii/run.sh

and the process will be spawned in the background.

To make this process automatic, I suggest using a crontab. In my case, I have set it to start at 6am. Make sure this isn't before the start time defined in config.ini as it will instantly fail!

* 6 * * * /home/pi/ii/run.sh

Configuration

In influx.ini is the InfluxDB connector configuration and config.ini contains the polling perl script configuration.

samil-influxdb-collector's Issues

Solar River

I recently got a secondhand inverter which I think is a Solar River S-2100
I have now installed perl and all is working fine with the exception of the temp reading which stays at zero.
I already have a system based on MQTT and node-red so I replaced the log.py with one that outputs the data to MQTT
Thanks for your contributions.
log.txt