Source: How to determine the capacity of the JsonDocument? | ArduinoJson 6

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