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.