https://create.arduino.cc/projecthub/rafitc/what-is-watchdog-timer-fffe20

The architecture of this number format is the following:

S: sign
E: exponent
F: faction (also referred to as the mantissa or significand)

calculation would be = (-1)^S * 2^(E [dec format]-127) * (1.F)[Base 10]

Source: How are floating point values converted in Schneider Electric energy meters?

https://www.modbustools.com/download.html

https://www.modbusdriver.com/diagslave.html

https://circuitdigest.com/microcontroller-projects/rs-485-modbus-serial-communication-with-arduino-as-master

https://en.wikipedia.org/wiki/List_of_Star_Wars_planets_and_moons#Pasaana

Download archive into a folder. Then unpack the tarball:

tar xzf modpoll.tgz

The tarball contains multiple binaries for different CPU architectures. Add the version matching your system architecture to the path. Example for ARM platforms like Raspberry Pi:

export PATH=$PWD/modpoll/linux_arm-eabihf:$PATH

Then run modpoll:

modpoll -h

Source: Free Modbus Master Simulator and Test Tool

Source: MAX 485 & ModbusMaster – Basic Guide

Source: How to Use Modbus with Arduino – Arduino Project Hub