使用C++实现将Modbus协议封装在DLL中的源代码

Delphi是一种具有功能强大、简便易用和代码执行速度快等优点的可视化快速应用开发工具，它在构架企业信息系统方面发挥着越来越重要的作用，许多程序员愿意选择 Delphi作为开发工具编制各种应用程序。但是，美中不足之处是 Delphi没有自带的串口通信控件，在它的帮助文档里也没有提及串口通信，这就给编制通信程序的开发人员带来许多不便-with Delphi is a powerful, easy-to-use and faster code execution advantages of visual rapid application development tool, the framework for enterprise information systems are playing an increasingly important role, many programmers choose to Delphi as a development tool preparation of the various applications. However, inadequate as it is not Delphi onboard Serial Communication Control, in its help files contain no mention of serial communication, which gives the procedures for the preparation of communications developers bring a lot of inconvenience

通过串口与IC设备进行数据交互传输，实现IC卡餐饮收费系统。-through the serial port and IC equipment interactive data transmission, Food IC card system.

基于vb的西门子plc和上位机通信的实现方法 拷贝就行-vb-based Siemens plc and the personal computer communications method copy OK

VB串口控件属性 之关于使用 VB 与单片机通信-VB serial control attribute on the use of VB with the single-chip communication

串口通信的东东 串口通信的东东串口通信的-Dongdong serial communications serial communications serial communications Dongdong

Dos 串口通信例程实现了FiFO ,中断发送中断接受！-Dos serial communication routines to achieve a FiFO, interrupted send interrupt accepted!

Corrado Cavalli为VB.NET写的串口通讯类。通过调用API的方法与串口通讯。我的有关串口通讯的程序都是用的这个类。-Corrado Cavalli to write VB.NET serial communications. By calling the API methods and serial communications. Serial I of the communications procedures are used in this category.

一个简明的串口通讯例子-a simple and clear example for serial port communication

这是我做的关于考勤机的一些测试程序，请大家积极下载，很有帮助。-This is my appraisal done on the plane of some testing procedures, please download positive and helpful.

非常好用的串口编程工具 for delphi 7.0-very user-friendly programming tools for Serial delphi 7.0