51单片机实现的 modbus 通信协议测试通过 希望能给初学者一个启发 共同进步！与之前上传的不一样-51 MCU modbus communication protocol test inspired by hope to give eginners a common progress! Not the same as the previous upload

modbus test program.

MODBUS协议实现一主机对多从机轮询的示例。在工装设计之前做了这么一个仿真示例，展示主机与从机之间应用简易的MODBUS 04命令进行轮询会话的过程。PROTEUS设计中有标示，程序中代码有注释，希望能对需要的朋友有所帮助。-MODBUS protocol of a host of many examples of polling from the machine. Done before the tooling design such a simulation example that sh

modbus协议，通过串口通讯，支持RS232和RS485接口，stm32f103vb上测试通过-modbus protocol via the serial port, supports RS232 and RS485 interfaces, the test on stm32f103vb