Modbus: two words float
I write the values for my meter with modbus/TCP and the set point is a float on 2 registers.
Documentation, says this:
Floating point parameters are 4 bytes long and are mapped to two consecutive Modbus
registers. The floats are single precision IEEE (1 sign bit, exponent fraction of 23 bits and 8-bit) format. The
first register contains 16 32 bits, the second register contains bit 15-0.
The modbus library sends unsigned words, so how I break a float in two words, corresponding to the above requirements.
Thank you!
Tags: NI Software
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