COM_CONTROL

说明：  自动识别电脑有多少个串口，关自动加载!!!(Automatically identify the number of serial computer, turn off automatic loading )

VB和信捷PLC通讯的源代码，包括读写，置位，独一无二哦，网上都找不到的。(vb and thinget plc communication program source,good thing)

MSComm控件串口通信编程，第一次作业。(MSComm control serial communication programming, the first operation.)

利用C语言实现RS232串口上下位机通信的设计(Using C language to realize RS232 serial port communication up and down a machine design )

说明：  很多下位机程序员都有这样的经历，在交付工程的时候对方要求提供源程序，而大多数下位机程序员都知道交出源程序是意味着什么，所以为了保护各位下位机程序员的合法利益.这个工具，伪装过后的源程序可以编译通过。(many lower computer programmers have the same experience that the delivery of the other works on the request source, and most of the next crew to surrender programmers are aware of what it means to the source, Therefore, in order to protect you and lower computer programmer's legitimate interests. this tool, camouflage after the source compile.)

CVI环境下的串口调试助手，主要功能有即时收发信息，显示波形，截图和保存数据(CVI environment serial debugging assistant, the main function includes immediately send and receive information to display waveforms, capture and save data)

用visual c++写的串口通信程序,有rs232,同步串口通信,不错的(Written in visual c++ serial communication program, rs232, synchronous serial port communication, good)

改进的SerialPort类单文档实例程序(improved SerialPort single document type sample program)

Windows串口编程实例，封装了串口类，很不错的一个例子，希望对初学者有用(Windows serial programming examples, encapsulates the serial type, a very good example, I hope useful for beginners)

用VB编写的FX系列PLC通信动态链接库,用户只需调用API函数就可以简单的实现串口通讯(VB prepared by the FX series PLC communication dynamic link library, Users only need to call API functions can be achieved by a simple serial communications)