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Description: Siemens PPI协议分析
西门子S7-200 PLC之间或者PLC与PC之间通信有很多种方式:自由口，PPI方式，MPI方式，Profibus方式。使用自由口方式进行编程时，在上位机和PLC中都要编写数据通信程序。使用PPI协议进行通信时，PLC可以不用编程，而且可读写所有数据区，快捷方便。但是西门子公司没有公布PPI协议的格式。用户如果想使用PPI协议监控，必须购买其监控产品或第三方厂家的组态软件。这样给用户自主开发带来一定困难，特别是自行开发的现场设备就不能通过PPI协议接入PLC。其它通讯方式编程也存在编程复杂，需要购买软件和授权等局限性。通过数据监视、分析的方法，我们找出了PPI协议的关键报文格式，可用于上位机、现场设备与S7-200 CPU之间通讯。-Siemens PPI negotiates analysis
Siemens S7-200 PLCs it occasionally between PC and PLC the correspondence has a lot of methods: free orifice, PPI method, MPI method, Profibus method.Use free when the orifice method progress weave a distance all want to write data correspondence procedure in the place of honor machine and PLC.While using PPI to negotiate progress correspondence PLC can need not plait distance, and can read and write all data zones, fast convenience.But Siemens company didn t release PPI the format of agreement.If the consumer wants to use PPI to negotiate supervision, has to buy the configuration software that it supervises and controls a product or third party plant house.Give the consumer independent tapping fetch must be difficult like this, develop especially and by oneself of site equipment the incapability negotiate connecting through PPI into PLC.Other telecommunication methods
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Size: 18432 |
Author: AAA |
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Description: vc 注册与卸载OCX\RegisterOcx的程序源码,值得一看！-vc registration and unloading OCX \ RegisterOcx the program source code, worth a visit!
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Size: 26624 |
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Description: 注册与卸载OCX\RegisterOcx,很不错的vc源码，希望能对大家有所帮助-Registration and unloading OCX \ RegisterOcx, very good vc source, I hope you can help
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Size: 24576 |
Author: 孙伟伟 |
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Description: VC串口通讯dll ocx等 库文件-VC dll ocx and other serial communication library
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Size: 47104 |
Author: clevey |
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Description: vc做的FTP断点续传ocx，大家交流下吧-vc do FTP HTTP ocx, under the right to share
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Size: 46080 |
Author: main |
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Description: 修改后的DSOFRAME.OCX源码，在VC++6.0上编编译通过-modified DSOFRAME.OCX source code on vc++6.0
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Size: 19804160 |
Author: wyj |
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Description: TeeChart8.ocx应用，做图功能非常强大，在VC++环境中可使用的控件-Teechart8.ocx application to draw is very powerful,it can be used in Vc++ environment.
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Size: 2496512 |
Author: 王东 |
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Description: vc++做的源码，用于程序自动注册OCX控件，不用再手动复制到指定目录，方便实用。-vc++ do the source code, the program used to automatically register OCX controls, no longer need to manually copy to the specified directory, convenient and practical.
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Size: 35840 |
Author: 张鹏 |
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Description:
MapWinGIS是一个不错的开源GIS项目，开发语言是VC，基于微软的COM思想编写，团队的开发人员主要来自美国爱荷华大学，开发团队中还有一位中国人。系统来讲，MapWinGIS是一套类似于AO的二次开发组件库（只是没有AO那么强大），其核心库是一个名字为MapWinGIS的ActiveX控件，开发人员可以利用这个ActiveX组件在自己的系统中添加GIS的相关功能，例如地图显示；在图层上标绘点，线，图形；计算长度，存取GIS数据等相关工作。ESRI在AO的基础之上开发了ArcGIS的桌面产品，类似的，他们也在MapWinGIS 这套组件库的基础上，二次开发了MapWindow GIS,这是一套桌面GIS系统，相当于一个简化版的ArcMap，桌面GIS系统的开发语言使用的是VB.NET。用户可以直接通过它浏览数据，并通过一系列插件来完成其他功能。还有一套MapWinX，是DOTNET平台下的一个辅助工具。-The objective of this series is to present a simple and easy to use approach to develop a desktop GIS application. My tool pack includes only MapWinGIS.ocx from MapWindow GIS Project which is one of the most successful open source GIS projects for Windows platform. MapWinGIS.ocx provides the full set of tools to maintain and display GIS data and it is free of charge under MPL license.
In the previous lesson, we discussed the basics required to display GIS data on the MapWinGIS.ocx Map Control. We also discussed how to customize the symbology of the displayed GIS data. In this lesson, I am going to teach you how to advance your symbology skills and use labeling functionality on your map.
As mentioned in the previous lesson, I am using .NET Framework 3.5 and Visual Studio 2008 professional edition in the code attached here, but you can use Visual Studio express edition to get the same results. You have to download MapWinGIS.ocx and install it on your machine too. You can download i
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Size: 89088 |
Author: chenanding |
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Description: 用VC写的自定义控件的程序 该控件是一个MFC常规DLL，它实现了一个简单的功能，类似于Static控件。 它可以显示一段文本 当用户利用鼠标左键单击时，该控件就给父窗口发送一个单击通知消息 可以响应两个用户自定义消息，WM_SETCONTROLTEXT（设置显示的文本）-VC write OCX control of the process is a conventional MFC DLL, it achieved a simple function, like Static Control. It can show a text when users click the left mouse button, the controls became a father window click send alerts to respond to two user-defined information. WM_SETCONTROLTEXT (setting displays the text) WM_GETCONTROLTEXT (to be shown in the text)
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Size: 15360 |
Author: ye |
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Description: 用VC写的自定义控件的程序 该控件是一个MFC常规DLL，它实现了一个简单的功能，类似于Static控件。 它可以显示一段文本 当用户利用鼠标左键单击时，该控件就给父窗口发送一个单击通知消息 可以响应两个用户自定义消息，WM_SETCONTROLTEXT（设置显示的文本）,WM_GETCONTROLTEXT（得到显示的文本）--VC write OCX control of the process is a conventional MFC DLL, it achieved a simple function, like Static Control. It can show a text when users click the left mouse button, the controls became a father window click send alerts to respond to two user-defined information. WM_SETCONTROLTEXT (setting displays the text) WM_GETCONTROLTEXT (to be shown in the text)
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Size: 659456 |
Author: ye |
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Description: ocx控件,用vc++ 开发,regsvr32 /s 注册ocx 控件后,附件中有test.html 可以测试该控件- ocx controls,develped by vc++, you can register the ocx with regsvr32 /s activesso.ocx,after that ,you can run the test.html
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Size: 14331904 |
Author: studyhard |
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Description: VC++ 医院系统内涵ocx控件，登录名和数据库里面都有，-VC++ hospital system connotation ocx controls, login name and database which has
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Size: 896000 |
Author: 黄茂青 |
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Description: VC开发的ocx控件，调用动画的例子，源码共享中-Ocx controls development of the VC call animation example
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Size: 43008 |
Author: zx |
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Description: VC++ 对ADO,ODBC 的OCX和DLL的研制．
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Size: 2048 |
Author: hulinduo |
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Description: 谷歌地图动态显示ocx控件封装,具有动态显示地图，文件自动播放功能-Google Map package based on VC++
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Size: 2482176 |
Author: 张浩 |
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Description: MSINET.OCX是VB\VC\C#程序运行和编译不可缺少的控制窗体正常化的组见,编译的时候缺少它,开发人可以运行,客户将无法运行它你的程序.-MSINET.OCX is VB \ VC \ C# program to run and compile an indispensable form of normalization control group See compile time without it, developers can run, customers will not be able to run it on your program.
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Size: 52224 |
Author: ZY |
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Description: AniGIF_2013.ocx是一款运用于所有WINDOWS编程序(VB\VC\C#)的GIF动画控制组件,并能参与图片的合成与转化.-AniGIF_2013.ocx is a applied to all WINDOWS programmed (VB \ VC \ C#) animated GIF control components, and can participate in the synthesis and transformation of images.
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Size: 118784 |
Author: ZY |
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Description: Win8 VC注册Ocx控件程序，实验自动注册，导入到注册表-Win8 Ocx Regsvr VC
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Size: 2251776 |
Author: 王建平 |
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Description: vc注册与卸载OCX的程序源码,值得一看！-vc up and uninstall the OCX program source code, worth a visit!
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Size: 23552 |
Author: tinMay |
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