西门子WinAC ODK编程手册：Windows自动化中心RTX开发套件

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"西门子_Windows Automation Center RTX Open Development Kit (WinAC ODK)是西门子推出的一款用于工业自动化领域的软件开发工具包。它主要用于扩展SIMATIC Windows Automation Center RTX的功能，允许用户自定义代码，利用共享内存以及控制器管理接口(CMI)来实现更复杂的自动化任务。此资源为该产品的编程手册，版本为V4.2，订单号为6ES7806-1CC03-0BA0，出版日期为04/2009，文档编号A5E00340326-02。" **详细说明** **WinAC ODK**全称为Windows Automation Center RTX Open Development Kit，是西门子SIMATIC自动化产品系列的一部分，主要用于在Windows操作系统上创建实时（Real-Time eXtension, RTX）自动化解决方案。这个工具包为开发者提供了三个关键的扩展功能： 1. **CCX - Custom Code Extension**：这一组件允许用户编写自定义代码以适应特定的自动化需求。开发者可以使用熟悉的编程语言如C/C++，结合西门子提供的API和库函数，实现与SIMATIC RTX系统紧密集成的用户应用程序。 2. **SMX - Shared Memory Extension**：通过共享内存机制，SMX扩展允许不同进程之间高效地交换数据，这对于实时环境中的通信和协调至关重要。开发者可以利用共享内存来实现实时数据传输和处理，提高系统的响应速度和性能。 3. **CMI - Controller Management Interface**：CMI为用户提供了与SIMATIC控制器进行交互的接口，使得开发者能够控制和监视自动化设备，执行诊断操作，以及实现高级控制逻辑。通过CMI，开发者可以更灵活地管理控制器的运行状态和参数配置。 **文档内容**：这份编程手册详细介绍了WinAC ODK的使用方法，包括产品概述、安装指南、自定义代码的编写、共享内存的管理和控制器接口的运用。手册中还包含了安全警告信息，强调了在使用过程中确保个人安全和设备安全的重要性。 **安全信息**：手册中特别强调了安全警示系统，分为三个级别：DANGER表示可能导致严重人身伤害甚至死亡的风险；WARNING表示可能造成严重人身伤害的风险；CAUTION则标识可能导致财产损失但无生命危险的情况。这些警示符号和信息提醒用户在操作和维护过程中必须严格遵循安全规定。西门子WinAC ODK是工业自动化领域的一个强大工具，通过提供自定义编程、高效数据交换和控制器管理等功能，帮助开发者构建定制化的、高性能的自动化解决方案。对于需要深入开发SIMATIC RTX系统的工程师和技术人员来说，这份编程手册是一份不可或缺的参考资料。

CCX - Custom Code Extension

2.2 Development tasks

Open Development Kit (WinAC ODK)

16 Programming Manual, 04/2009, A5E00340326-02

2.2 Development tasks

2.2.1 Creating a CCX object with the application wizard

The application wizard helps you perform the following tasks:

●

Define project information for the CCX extension object (Page 16)

●

Configure subcommands for your extension object (optional) (Page 17)

●

Create classes that you can use to execute functions asynchronously from the WinLC

RTX scan cycle (optional) (Page

19)

●

Create classes that you can use to asynchronously monitor one or more attributes of your

system (optional) (Page

21)

●

Specify vendor information to uniquely identify your project (optional) (Page 23)

●

Generate the CCX project (Page 24)

Note

The application wizard produces unmanaged code for C/C++, managed code for Visual

Basic and C#.

2.2.1.1 Configuring project information

To start the WinAC ODK Application Wizard and configure project information data, follow

these steps:

1. Select Start > SIMATIC > PC Based Control > WinAC ODK AppWizard. The WinAC ODK

Application Wizard displays the Project Information dialog.

2. Enter the name for your application in the Name field of the Project Information dialog.

3. Optionally, edit the directory field to specify the location of the project. Otherwise WinAC

ODK uses the default Projects folder for your installation.

4. Select the type of application you are creating from the options shown.

5. Select the compiler that you are using. Note that if you intend to build an RTDLL of your

CCX application, you cannot use Microsoft Visual Studio 2008. If you intend to build a

DLL to run in Windows, you can use any of the compilers.

6. Click Next when you are finished with this dialog.

CCX - Custom Code Extension

2.2 Development tasks

Open Development Kit (WinAC ODK)

Programming Manual, 04/2009, A5E00340326-02

Making changes to subcommand structure from the programming environment

The application wizard requires that you specify at least one subcommand; however, your

RTDLL or DLL does not have to make use of subcommands. If you do not have more than

one type of task for your custom software to perform, you can implement the custom

software directly in the Execute function and eliminate the subcommand functions produced

by the application wizard.

Similarly if you choose to add more subcommands than at the time you created the project

using the application wizard, you can add them from your programming environment.

2.2.1.3 Enabling asynchronous processing

If you configure asynchronous processing with the WinAC ODK Application Wizard, you are

setting up separate events in your extension object that will allow functions to execute

outside of the main thread of execution. Regardless of whether you configure asynchronous

processing with the application wizard, you can, however, execute any CCX extension object

asynchronously by calling it from your STEP 7 program with SFB65003. These are two

separate means of accomplishing asynchronous exection.

Asynchronous execution from SFB65003 (ASYN_COM)

WinAC ODK V4.2 introduces SFB65003, which enables your STEP 7 user program to call

the CCX extension object asynchronously. The custom logic in your CCX extension object

then executes on a separate thread asynchronously from the scan cycle. The time to

execute the software in the CCX extension object does not affect the scan cycle. If you use

SFB65003 to execute your DLL or RTDLL asynchronously, you do not need to configure

asynchronous events in your project from the WinAC ODK Application Wizard.

Asynchronous processing with asynchronous events

Prior to the introduction of SFB65003 in WinAC ODK, STEP 7 executed CCX extension

objects only through SFB65002. The CCX extension object ran within the scan cycle, but

could accomplish asynchronous execution through the use of asynchronous events.

Although SFB65003 now provides asynchronous execution of the CCX extension object,

WinAC ODK and the Application Wizard still support the use of asynchronous event

processing within the CCX extension object and the use of

monitor threads (Page 21) to

monitor the progress of those events.

Asynchronous processing allows specific functions to be executed outside of the main

Execute function. These commands can then be executed without penalizing the controller

scan cycle, even if the STEP 7 program used SFB65002 for synchronous execution of the

extension object. The asynchronous processor uses objects derived from the CEventMsg

class to carry out event-specific functions. Asynchronous processing is optional, and with the

introduction of SFB65003 rarely needed.

Note

You do not select

SFB65002 or SFB65003 (Page 14) for your CCX extension object when

you are creating the project from the WinAC ODK Application Wizard. Rather, you make this

choice when you

program the STEP 7 program (Page 35).

To use asynchronous processing in your WinAC ODK project to create a thread of execution

separate from the CCX extension object thread, follow these steps:

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