Package beremiz-modbus-source: Information

This directory contains the libararies that implement the modbus protocol
stack.

This protocol has been implemented as a two layer stack. Layer two includes
the mb_master and the mb_slave protocols. Layer one is composed of
the mb_rtu, mb_ascii and mb_tcp protocols.

Layer1 protocols all implement the same interface, defined in mb_layer1.h
Layer2 protocols implement different interfaces, defined in mb_master.h
and mb_slave.h

Which layer1 protocol that will be used by the program will depend on which
layer1 protocol implementation is linked to the final binary/executable.
It is not possible to define during run-time which layer1 protocol is to
be used. Each compiled program can only support a single layer1 protocol.

Users of these libraries should only use functions defined in the layer2
protocol header files (i.e. mb_master.h and mb_slave.h)

If writing a program that will simultaneously be a master and a slave,
then only use the mb_slave_and_master.h header file!
In this case, do not forget to link the final binary to both the
master and slave protocol implementations (as well as the chosen
layer1 protocol implementation).