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fspctl README

A modbus/RTU controller and daemon for the FSP Powermanager 10kW. Connect via a USB to RS-485 converter to the FSP Modbus Card P17.

The FSP Modbus Card P17 has DIP switches to configure the RS485 address and other communication parameters.

Configuration

On first start fspctl writes a configuration template to ~/.config/.fspctl

ttydev     /dev/ttyUSB0
stopbits   2
slaveid    10
mqtthost   mqtt.host.org
mqttport   1883
mqttuser   user
mqttpass   ***
capath     The CA path to verify TLS certificate of the MQTT broker.
cafile     The CA file to verify TLS certificate of the MQTT broker.
publish0   address bit mqtt-topic
publish1   address bit mqtt-topic
...
publish9   address bit mqtt-topic

Requirements

Debian/RaspberryPiOS:

sudo apt install cmake libmodbus-dev libmosquitto-dev libssl-dev build-essential

Building

mkdir build
cd build
cmake ..
make