HP Drive manual Chapter Using IVI with Matlab, Development Environment

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Chapter 6

Using IVI with MATLAB®

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The Development Environment

MATLAB from The MathWorks is an interactive software environment for data acquisition and analysis, waveform generation, algorithm creation, and test system development. MATLAB also provides a technical computing language that is designed to help you solve technical challenges faster than with traditional software environments.

MATLAB supports IVI instrument drivers using the Instrument Control Toolbox. The toolbox provides additional MATLAB functionality.

Example Requirements

MATLAB R2007a

MATLAB Instrument Control Toolbox

Agilent 34401A IVI-COM, Version 1.1.0.11, March 2006 (from Agilent Technologies)

Agilent IO Libraries Suite 14.2

Download and Install the Driver

If you have not already installed the driver, go to the vendor Web site and follow the instructions to download and install it.

This example uses an IVI-COM driver, MATLAB also supports IVI-C drivers.

Note: Older versions of the Instrument Control Toolbox (R2006b or earlier) support only IVI instrument drivers that used the IDispatch interface. IVI instrument drivers that use the IUknown interface only will not work with these versions. To determine if the driver implements only the IUknown interface, please consult the vendor.

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Contents Getting Started Guide Page Contents Using IVI with LabVIEW Using IVI with Visual C# and Visual Basic .NETUsing IVI with LabWindows/CVI Using IVI with Matlab Using IVI with Measure FoundryUsing IVI with Paws Using IVI with Agilent VEE Pro Using IVI with Visual Basic 6.0Advanced Topics Why Use an Instrument Driver? Chapter IntroductionPurpose Why IVI? Class IVI Driver Why Use an IVI Driver? Download and Install IVI Drivers Flavors of IVI DriversShared Components Examples Familiarizing Yourself with the DriverIntroduction Chapter Download and Install the Driver Chapter Using IVI with Visual C++Using IVI-COM in C++ Environment\Program Files\Ivi\Bin Create a New Project and Import the Driver Type LibrariesUsing IVI with Visual C++ Set the Trigger Delay Configure the InstrumentDmm-ConfigureIviDmmFunctionDCVolts, 1.5 Dmm-Trigger-Delay =Set the Reading Timeout/Display the Reading Error CheckingClose the Session Using IVI-C in Visual C++ Build and Run the ApplicationExit1 IAgilent34401Ptr dmmuuidofAgilent34401 try \Program Files\IVI\Lib\msc \Program Files\IVI\include$VXIPNPPATHWinNT\include Chapter Error = Define Error CheckingGoto Error else error = error #endif #ifndef checkErr #define checkErrfCallSet the Trigger and Trigger Delay CheckErr hp34401aRead session, 1000, &readingIf session Hp34401aClosesession Build and Run the Application Further Information Chapter Using IVI with Visual C# Visual Basic .NET Create a New Project and Reference the Driver Create an Instance of the Driver Using Agilent.Agilent34401.InteropType dmm.Initialize GPIB23, false, true, simulate=true Dmm.Trigger.Delay = Dmm.DCVoltage.Configure1.5Type double reading Dmm.CloseAgilent34401Class dmm = new Agilent34401Class TipsImports Agilent.Agilent34401.Interop Console.WriteLineThe reading is 0, reading Console.ReadLineOption Explicit On Chapter Using IVI-C Chapter Using IVI with LabVIEWTMCreate a Project and Access the Driver Using IVI with LabVIEW Take the Reading Add Error Checking Display the ReadingRun the Application Using IVI-COM Setting a Property in an IVI-C DriverUsing IVI with LabVIEW Initialize the Instrument Configure the Instrument Close the Driver and Automation Sessions Run the Application Chapter Create a New Project and Add Instrument Driver Files Chapter Using IVI with LabWindowsTM/CVITM#include hp34401a.h Using IVI with LabWindowsTM/CVITM Configure the Instrument Set the Reading Timeout GPIB023INSTR, Vifalse Printf %f, reading Chapter Development Environment Chapter Using IVI with MatlabTopics Configure the IVI DriverUsing IVI with Matlab DMM in the Driver session field Generate an Instrument Wrapper Configure and Control the InstrumentCreate an Instance of the Instrument Connect to the InstrumentDisplay Reading Set Reading TimeoutDisconnect from the Instrument Remove the Driver from MemoryMatlab is a registered trademark of The MathWorks, Inc Chapter Chapter Using IVI with Measure Foundry Data Source Using IVI with Measure Foundry Control Source Using IVI with Measure Foundry Data Sink Compile and RunClose Session Using IVI with Measure Foundry Chapter Chapter Using IVI with Paws Prepare the Paws Environment CNX HI X20-2 LO NOM 0 V UL 0.5 V LL -0.5VDC $ Cnx hi DMM-Hi, lo DMM-LoAdd the Wcem Interface Functions Connect to the IVI-COM Driver #include DMM.h Extern CComPtrIAgilent34401 driver Extern Hresult hr#include DMM.h Hr = driver-getDCVoltage&pDMMDCVolt Variantfalse VarianttrueHr = pDMMTrig-ConfigureAgilent34401TriggerSourceImmediate Display\0333041m Bad return from Close method\033m\n Build the Project IEEE-488 Bus Configuration File ChannelPrepare the Run-Time System Environment MLALoad and Run the Project Chapter Chapter Using IVI with Visual Basic Add a Button Dim dmm As New Agilent33401 Option ExplicitType 1.5 Type dmm.Close Type dmm.Trigger.Delay =Tips Further Information Chapter Launch the Instrument Manager and Select the Driver Chapter Using IVI with Agilent VEE ProChapter Using IVI with Agilent VEE Pro Initialize the Instrument Configure the Instrument Tips Another Method to Display the Reading Further Information Chapter Chapter Advanced Topics IVI ArchitectureDriver API Driver Types Advanced Topics Interchangeability Instrument I/OAdvanced Topics IVI Configuration Store Advanced Topics Chapter IIviSessionFactory factory = new IviSessionFactoryClass IVI-COMString identifier = driver.Identity.Identifier Driver.InitializelogicalName, true, trueConsole.WriteLineIdentifier 0, identifier IIviDmm dmm = IIviDmmfactory.CreateDriverlogicalNameIVI-C Editing the Configuration Store Future DevelopmentIVI Drivers in Action Advanced Topics Chapter

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