基于rust的tokio-modbus实现modbus通信

（一）tokio-modbus介绍

A pure Rust Modbus library based on tokio.
Modbus is based on a master/slave model. 
To avoid confusions with the tokio terminology, the master is called client and the slave is called server in this library.

（二）tokio-modbus源码分析

(1)modules

client
prelude
server
slave

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2021-11-6