VB写的通过串口与考勤机连接通讯的程序

使用VC对并口进行访问和控制的VC程序示例，该程序完全用API完成(parallel to the use of VC visit and control procedures VC example, the procedure is totally complete with API)

说明：  GpRS数据中心代码，基本上实现了数据中心的大部分功能(GpRS data center code, basically realize the majority of the data center functions)

一个与仪表通讯的上位机程序源码，采采用RS232通讯，协议为MODBUS (A host computer program source code with the instrument of communication, mining RS232 communication protocol MODBUS)

Labwindows CVI 中不错的串口编程，串口调试(Good serial programming Labwindows CVI, serial debugging )

可用于无协议串口调试和标准Modbus调试。例案：单片机无协议通信、变频器通信调试、PLC及工业仪表通信调试。(No agreement can be used for standard Modbus serial debugging and debugging. Example case: no agreement on single-chip communications, Converters debug communications, PLC and industrial instrumentation communication debugging.)

该代码实现的功能是对.tif格式的图片自动分页，并且可以实现数据的查找切割提取。(To achieve the functions of the code. Tif format images automatically paging, and extract data to find cutting.)

MCGS昆仑通态的触摸屏的脚本串口驱动(MCGS Kunlun touch screen script, serial port driver)

调试串口很有帮助，用windowsAPI编写，避免了com控件的局限性(help for serialport debug)

MODBUS通信协议，用VC6.0调试通过，非常好用，做上位机用这个很好(MODBUS communication protocol with VC6.0 debugging through, very easy to do well with this PC)

DMX 512协议是Digital Multiplex的缩写，是灯光行业数字化设备的通用信号控制协议，同时也是是一种国际协议。 　　USITT DMX512/1990是调光和灯光控制台数据传输标准，是娱乐灯光领域常用的控制协议。以前0-10V模拟控制用的比较多，现在DMX512是娱乐灯光行业最主要的控制协议。USITT DMX512/1990是由美国剧场技术协会USITT提出的。最原始的版本出版于1986年，在1990年做了修改。 (DMX 512 protocol is short for Digital Multiplex is light industry, general-purpose digital signal device control protocol, but also is an international agreement. USITT DMX512/1990 is dimming and lighting control data transmission standard, is commonly used in the field of entertainment lighting control protocol. 0-10V analog control previously used more, now is the entertainment lighting industry, the main DMX512 control protocol. USITT DMX512/1990 by the American Association of Theater Technology USITT s. The original version published in 1986, was revised in 1990.)