Modbus 是由 Modicon（现为施耐德电气公司的一个品牌）在 1979 年发明的，是全球第一个真正
用于工业现场的总线协议。
ModBus 网络是一个工业通信系统，由带智能终端的可编程序控制器和计算机通过公用线路或局部专
用线路连接而成。其系统结构既包括硬件、亦包括软件。它可应用于各种数据采集和过程监控。
为更好地普及和推动 Modbus 在基于以太网上的分布式应用，目前施耐德公司已将 Modbus 协议的
所有权移交给 IDA（Interface for Distributed Automation，分布式自动化接口）组织，并成立了
Modbus-IDA 组织，为 Modbus 今后的发展奠定了基础。(Modbus was invented in 1979 by Modicon (now a brand of Schneider electric), the world's first truly
Bus protocol for industrial field.
ModBus network is an industrial communication system, which consists of a programmable controller and a computer with an intelligent terminal, through a public circuit or a local bus
Be connected by line. Its system structure includes both hardware and software. It can be applied to various data acquisition and process monitoring.
In order to better popularize and promote Modbus's distributed applications based on Ethernet, Schneider Inc has already put Modbus protocol into practice
The transfer of ownership to the IDA (Interface, for, Distributed, Automation, distributed automation interface) organization was established
The Modbus-IDA organization laid the foundation for the future development of Modbus.)