A monitoring system with the adoption of the OPC procedure SLC500/LOGIX5000 PLC...

linux 环境下的 RS232通信源代码-linux environment RS232 communication source code

find the probability of error

* modbus C语言编写的子程序源代码 功能:显示和键盘相关子程序-C language source code for the subroutine functions : display and keyboard related Subroutine

这是个很不错的编程代码，是有关于RMI和数据库的编程是由中科院的老师亲自编写的-this is a very good program code is on the RMI and database programming by the Chinese Academy of Sciences teacher personally prepared the

上传运行该程序可以返回JSP环境的一些信息. 由于各种JSP应用服务器(例如Tomcat和JRun以及Resin等)在许多方面存在差异, 因此部分信息有中英对照. 此外, 因为Context attributes信息部分与JSP应用服务器有关, 故该部分只提供英文信息.如果运行后直接显示程序源代码, 则表示不支持JSP.-upload running the program can return to the JSP environment information. Various JSP application server (such as Tomcat, and Resin and JRun) in many respects differences, some messages are bilingual. In addition, because information Context attributes part of the JSP application server, Therefore, the only part of the information available in English. If you are running after a direct indication of program source code, then not support JSP.

串口工具

串口用例；通过这些基于widows上的串口开发用例熟悉串口开发流程。-Serial use case widows through the serial port on the development of use case development process are familiar with serial port.

RS485通信协议 ，主要讲述通信的原理，希望对大家有所帮助-thank you very much

云台解码器派尔高P协议，为原版协议，开发人员请注意其最后位校验，为异或校验，不是求和校验，这里很容易发生错误，我们在开发产品的时候搞错，头很大-PTZ decoder Pelco P protocol for the original agreement, the developer to draw your attention to the last bit checksum for the XOR checksum, not sum check, here are prone to error, we made a mistake when developing products , the first great

用VB实现GPS接收机与计算机的串口通信-This is a program about communication using VB.