Modbus 协议是应用于电子控制器上的一种通用语言。通过此协议，控制器相互之间、控制器经由网络（例如以太网）和其它设备之间可以通信。它已经成为一通用工业标准。有了它，不同厂商生产的控制设备可以连成工业网络，进行集中监控。本文是该协议中文版。-Modbus protocol is applied to the electronic controller of a common language. With this agreement, between the controller, the controller through the network (such as Ethernet) and other communications between devices. It has become a common industry standard. With it, the control of different equipment manufacturers can be connected into the industrial network, centralized monitoring. This is the Chinese version of the agreement.