SCOMMV23

利用VB语言实现对串口进行操作，从而实现通过串口进行远程关机的操作，了解相关编程方法。(VB language serial port operation through the serial port for remote shutdown operation, understanding related programming methods.)

十六进制向十进制转化的程序，可用于串口通讯编程。(Hexadecimal to decimal conversion program can be used for serial communication program.)

串口通讯调试代码，包括端口设置界面和信息收发界面(Serial communication debugging code, including port settings interface and messaging interface)

串口温度数据采集并实时显示 读串口数据的原理是,只要当有数据向串口发数据来时,计算机就会自动将其数据写到一个特定的缓冲区,我们只要写程序去读那个特定的缓冲区就可以了. 有数据向串口发过来时,程序可以将数据接收到,接收的数据是字符型的,那么将数据转化为数字型的,再将这个数据的大小作为画图的某一个点的纵坐标,横坐标为数据的序号.将这些点用线连起来就是一个曲线图了,这个就是图形显示基本原理. 查看原来的数据的原理也是这样的,不同的地方就是,数据是从文件中来,同样的也是将多个数据分成一个一个的,然后这一个数据的大小就是画图的某一个点的纵坐标,横坐标同样为数据的序号,再将这些点用线连起来就是曲线图. 图形能移动的原理,是我们首先改变的只是数据,图形并没有变,但图形的形式是由这些数据来确定的,当数据发生变化后,我们通过刷新显示区来变化的.(Serial temperature data acquisition and real-time serial data reading the principle is, as long as when a serial data to the data, the computer will automatically writes data to a specific buffer, we can write specific procedures read that the buffer zone would be fine. Serial data to be sent, process data can be received, the receiving of data is the character, then transform data into digital type, and then the size of the data as a drawing of a point Ordinate, the abscissa serial data. these points will be used to link line is a curve, this is the graphic display the basic tenets. View the original data is the same principle, the difference is, the data from the file, the same data also will be divided into a number one, and then this one is the size of the data to draw a certain point )

说明：  VC++编写上位机串口通信界面，原创VC++编写串口通信上位机界面 本人做接口实验时上位机部分 (VC++ write PC serial communication interface, the preparation of original VC++ serial communication interface, PC interface, I do some PC experiments)

1 两路编码器输入通道 2 采用专用编码器计数芯片完成计数工作 3 与上位机串口通讯(1 two-way encoder input channel 2 using a dedicated encoder chip count as counting work 3 serial communication with the host computer)

可以向串口发送数据，或从指定串口接收数据　VC源码-基础编程-源程序代码免费注册下载(Can send data to a serial port, or from specified serial ports receive data source-basic programming VC-source code downloaded free registration )

给出了基于MFC的can232接口的调试程序(MFC-can232 given based debugger interface)

QT开发的能够接收串口数据并将其转化为波形同步实时显示的上位机(QT development can receive serial data and converting it into waveform synchronous real-time display of the upper machine)

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)