C# 通过网络和三菱的PLC通信

本文是介绍仿真软件omnet++基础知识的文档，适合omnet+入门者学习，欢迎使用(failed to translate)

：本系统属于小型的局域网监控系统，可以对某一台计算机进行屏幕监控，本系统主要实现以下功能：  系统采用人机交互的方式，界面美观友好。  屏幕信息需要时时显示，网络延时不能大于1秒。  服务器端可以随时运行，只要客户端运行，就能够显示屏幕信息。  系统运行时占用内存不能大于10MB，以免影响系统性能。  客户端运行时需要隐藏显示窗口，起其感觉不到在运行(network monitoring system that can carry out the screen of a computer monitor, the system achieve the following features:  system is the way human-computer interaction, interface, beautiful and friendly.  need to constantly display screen information, the network delay is not greater than 1 second.  server can be run at any time as long as the client runs, will be able to display information.  run-time memory for the system can not be larger than 10MB, so as not to affect system performance.  need to hide the client run-time display window, from its feel in the run.)

可以查询网络DNS的一个小程序，以运行，无错误，可直接使用(Can the DNS query network a small program to run, no mistake, can use directly)

windows客户端与服务器之间的网络通信代码(windows between the client and server network communications code)

网络报告，可以快速修改使用，方便快捷！谢谢，使用！(Network report, you can quickly modify to use, quick and easy!)

【实例简介】115.以太网ping通实验(STM32神舟IV号-库函数版)

实现本地程序从远程服务器下载文件。保存到本地。同时，具备断点续传的功能。可以在下载一部分的情况下，再次下载从断点处继续下载。(Implement a local program to download files a remote server. Saved locally. At the same time, with the functions of HTTP. You can download a part in the case, once again download continue downloading the breakpoint.)

一个采用TCP协议的网络测试工具。采用VC6.0开发环境，具有客户端和服务器端，加入进来的客户端可以互相发送接受数据，对学习socket编程是不错的借鉴。(using a TCP network testing tools. VC6.0 use development environment with the client and server side, joined the client can accept each other this data, to learn socket programming is a good reference.)

EZ-IPUPDATE的LIB7版本，极有参考价值，与3322的QDNS不完全相同(ez-ipupdate is a small utility for updating your host name for the any of the dynamic DNS service offered at: * http://www.ez-ip.net * http://www.justlinux.com * http://www.dhs.org * http://www.dyndns.org * http://www.ods.org * http://gnudip.cheapnet.net (GNUDip) * http://www.dyn.ca (GNUDip) * http://www.tzo.com * http://www.easydns.com * http://www.dyns.cx * http://www.hn.org * http://www.zoneedit.com )

说明：  很强大的TCP/UDP测试工具，对于测试TPCServer高并发非常好用一直用的这个，强烈推荐使用！(Very powerful TCP / UDP testing tools, for testing TPCServer high concurrency very good use of this has been used, strongly recommended to use)