You will need access to the ModBus TCP port on your Generac Beacon. How to do this is currently left as an exercise for the reader.
This has currently been tested running in a linux container (LXC) but should work on any system where Python venv's are viable. Instructions below are for systems with systemd
Follow https://gist.github.com/drmalex07/c0f9304deea566842490 to set up an SSH tunnel as a service.
Service template: /etc/systemd/system/secure-tunnel@.service
[Unit]
Description=Setup a secure tunnel to %I
After=network.target
[Service]
Environment="LOCAL_ADDR=localhost"
EnvironmentFile=/etc/default/secure-tunnel@%i
ExecStart=/usr/bin/ssh -NT -i ${KEY_PATH} -o ServerAliveInterval=60 -o ExitOnForwardFailure=yes -L ${LOCAL_ADDR}:${LOCAL_PORT}:localhost:${REMOTE_PORT} ${TARGET}
# Restart every >2 seconds to avoid StartLimitInterval failure
RestartSec=5
Restart=always
[Install]
WantedBy=multi-user.target
Service Config: /etc/default/secure-tunnel@pwrcell
TARGET=root@192.168.0.XXX
LOCAL_ADDR=0.0.0.0
LOCAL_PORT=5020
REMOTE_PORT=502
KEY_PATH=/etc/default/secure-tunnel/pwrcell
Enable, start, and verify:
systemctl enable secure-tunnel@pwrcell
systemctl start secure-tunnel@pwrcell
systemctl status secure-tunnel@pwrcell
Clone this repository into your chosen directory:
cd /opt
git clone https://github.com/edalquist/pwrcell_sunspec.git
Setup python venv:
cd pwrcell_sunspec
python3.9 -m venv venv
source ./venv/bin/activate
pip install -r requirements.txt
Configure pwrcell_sunspec by cloning the example config cp config.example.yaml config.yaml and
editing the mqtt block to point to your MQTT server with the correct username/password. The
pwrcell config can be left alone if using the ssh service as described above.
Add systemd configuration in /etc/systemd/system/pwrcell-ha.service, note that this declares a
dependency on the secure-tunnel@pwrcell.service systemd service configured above.
[Unit]
Description=Publish PwrCell data to Home Assistant
After=syslog.target network.target secure-tunnel@pwrcell.service
[Service]
Type=simple
WorkingDirectory=/opt/pwrcell_sunspec
ExecStart=/opt/pwrcell_sunspec/venv/bin/python /opt/pwrcell_sunspec/main.py
# Restart every >2 seconds to avoid StartLimitInterval failure
RestartSec=5
Restart=always
[Install]
WantedBy=multi-user.target
Enable, start, and verify:
systemctl enable pwrcell-ha.service
systemctl start pwrcell-ha.service
systemctl status pwrcell-ha.service
- https://sshtunnel.readthedocs.io/en/latest/
- https://pypi.org/project/paho-mqtt/
- https://gitlab.com/ttblt-hass/mqtt-hass-base
Have this run and pull data from PwrCell and push into Home Assistant MQTT sensors