3508496

Communication connection for PLC

实现串口通信功能。由中断程序调用，实现串口单字节读写的功能。(Realize the serial communication function. By the interruption of the procedure call, the realization of single-byte read and write serial port function.)

C# 写的串口通信程序源码,MODBUS RTU(C# to write the serial communication program source code, MODBUS RTU)

说明：  modbus很全面很详细的485从机程序。(Modbus is a very comprehensive and detailed 485 slave program.)

430 串口通讯程序，简单的程序，适合初学者。(430 serial communication program, simple procedure, suitable for beginners.)

说明：  串口通信简单的，易懂适合小白，底层开始做(serial communication)

说明：  51单片机串口通讯软件与上位机通讯 含有多个程序(this is a programe to serils community to 51 and pc.)

Modbus TCP/IP协议client端源代码(Modbus TCP/IP protocal test)

说明：  基于单片机对湿度的测量 AD转换用串口调试助手显示湿度(The measurement of humidity based on single chip AD converter with serial debugging Assistant displays humidity)

说明：  自动化领域上位机通过OPC服务读取三菱Q系列PLC的方法(How to read Mitsubishi Q series PLC through OPC service)