Instalación y configuración del controlador IVI de MPE

Recursos importantes:

• Guía de inicio de IVI de la IVI Foundation
• Proyectos de ejemplo de programación IVI de MagnaDC de Magna-Power Electronics (C# y Visual Basic)
  
• Proyectos de ejemplo de programación IVI de MagnaLOAD de Magna-Power Electronics (C# y C)
  

Requisitos previos:

1. Entorno de desarrollo como Visual Studio Express 2008
2. Componentes compartidos de la IVI Foundation
3. Administrador de recursos globales VISA-COM (elija solo uno)
   1. National Instruments NI-VISA: Acepte todos los valores predeterminados durante la instalación, o
      1. Agilent IO Libraries Suite: Instale como VISA principal y acepte todos los valores predeterminados
4. Controlador IVI de Magna-Power Electronics (MPE). Consulte Descargas de soporte.

Nota: El controlador MPE-IVI no se instalará si los componentes compartidos de la IVI Foundation no se instalan primero. El controlador MPE-IVI mostrará una advertencia, Figura 1, si no hay un administrador de recursos globales VISA-COM instalado. VISA-COM se puede instalar antes o después del controlador MPE-IVI.

Using the IVI Driver

Reference the IVI Drivers

Before you can utilize the IVI Driver, you must add a reference to it. In Solution Explorer, right click on your Visual Studio project and click Add Reference… Select the COM tab (Figure 2) and then select the IVI MPEIVI 1.5 Type Library and click OK. Note: This will automatically add a reference to IviDCPwrLib and IviDriverLib (Figure 3).

Ensure the target platform is 32-bit (x86)

Since the IVI driver is a 32-bit COM driver, it can only be accessed from a 32-bit executable. By default, .NET programs will run in the native architecture of the operating system. However, a 64-bit program cannot access a 32-bit COM driver, so the target platform must be changed to force the program to run in 32-bit (x86) mode if your application will be used on a 64-bit version of Windows.

Special Instructions for Visual Studio Express Users

By default, Visual Studio Express hides the configuration options that allow you to select the target platform. To enable these configuration options (Figure 4):

• Check the box labeled Show advanced build configurations
• Select Projects and Solutions in the left panel
• Check the box labeled Show all settings in the bottom left
• Select Tools -> Options from the menu

El Administrador de configuración ahora se puede seleccionar desde el menú Compilar (Figura 5).

En el Administrador de configuración, seleccione en el menú desplegable Plataforma de solución activa (Figura 6).

Seleccione x86 en el menú desplegable de plataforma y haga clic en Aceptar (Figura 7).

Haga clic en Cerrar. Su ejecutable ahora se ejecutará como una aplicación de 32 bits incluso en una versión de 64 bits de Windows.

Common Errors

Problem: Exception "Could not create instance of VISA-COM Global Resource Manager Component. Make sure it is installed properly."
Solution: Install either National Instruments NI-VISA or Agilent IO Libraries Suite.

Problem: System.Runtime.InteropServices.COMException (0x80040154): Retrieving the COM class factory for component with CLSID {AD29F3FC-CAA9-4E18-A89F-010DEBAE7590} failed due to the following error: 80040154.
Solution: Make sure the MPE IVI driver is installed. If this error occurs on 64-bit Windows, make sure the application has been set to run as 32-bit (x86).

Problem: COMException (0x80047060) MPEIVI: Unknown resource.
Solution: Make sure the resource descriptor is correct and the power supply is on and accessible. Several example resource descriptors can be found in the IVI Driver Example source code.