mbpoll

mbpoll uses libmodbus (http://libmodbus.org/).
Although the syntax of these options is very close modpoll proconX program,
it is a completely independent project.
mbpoll can:

read discrete inputs
read and write binary outputs (coil)
read input registers
read and write output registers (holding register)

The reading and writing registers may be in decimal, hexadecimal or
floating single precision.

          

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License: GPL-3.0-or-later
URL: https://github.com/epsilonrt/mbpoll