HP manual Why Use an IVI Driver?

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IVI drivers conform to and are documented according to the IVI specifications and usually display the standard IVI logo.

Note: For more information on the types of IVI drivers, refer to Chapter 11, Advanced Topics.

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Why Use an IVI Driver?

Why choose IVI drivers over other possibilities? Because IVI drivers can increase performance and flexibility for more intricate test applications. Here are a few of the benefits:

Consistency – IVI drivers all follow a common model of how to control the instrument. That saves you time when you need to use a new instrument.

Ease of use – IVI drivers feature enhanced ease of use in popular Application Development Environments (ADEs). The APIs provide fast, intuitive access to functions. IVI drivers use technology that naturally integrates in many different software environments.

Quality – IVI drivers focus on common commands, desirable options, and rigorous testing to ensure driver quality.

Simulation – IVI drivers allow code development and testing even when an instrument is unavailable. That reduces the need for scarce hardware resources and simplifies test of measurement applications. The example programs in this document use this feature.

Range checking – IVI drivers ensure the parameters you use are within appropriate ranges for an instrument.

State caching – IVI drivers keep track of an instrument’s status so that I/O is only performed when necessary, preventing redundant configuration commands from being sent. This can significantly improve test system performance.

Interchangeability – IVI drivers enable exchange of instruments with minimal code changes, reducing the time and effort needed to integrate measurement devices into new or existing systems. The IVI class specifications provide syntactic interchangeability but may not provide behavioral interchangeability. In other words, the program may run on two different instruments but the results may not be the same due to differences in the way the instrument itself functions.

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Contents Getting Started Guide Page Contents Using IVI with Visual C# and Visual Basic .NET Using IVI with LabVIEWUsing IVI with LabWindows/CVI Using IVI with Matlab Using IVI with Measure FoundryUsing IVI with Paws Using IVI with Visual Basic 6.0 Using IVI with Agilent VEE ProAdvanced 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 Familiarizing Yourself with the Driver ExamplesIntroduction Chapter Chapter Using IVI with Visual C++ Download and Install the DriverUsing IVI-COM in C++ EnvironmentCreate a New Project and Import the Driver Type Libraries \Program Files\Ivi\BinUsing IVI with Visual C++ Configure the Instrument Set the Trigger DelayDmm-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 Define Error Checking Error =Goto 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 Using Agilent.Agilent34401.Interop Create an Instance of the DriverType dmm.Initialize GPIB23, false, true, simulate=true Dmm.DCVoltage.Configure1.5 Dmm.Trigger.Delay =Type double reading Dmm.CloseTips Agilent34401Class dmm = new Agilent34401ClassImports Agilent.Agilent34401.Interop Console.WriteLineThe reading is 0, reading Console.ReadLineOption Explicit On Chapter Chapter Using IVI with LabVIEWTM Using IVI-CCreate a Project and Access the Driver Using IVI with LabVIEW Take the Reading Add Error Checking Display the ReadingRun the Application Setting a Property in an IVI-C Driver Using IVI-COMUsing IVI with LabVIEW Initialize the Instrument Configure the Instrument Close the Driver and Automation Sessions Run the Application Chapter Chapter Using IVI with LabWindowsTM/CVITM Create a New Project and Add Instrument Driver Files#include hp34401a.h Using IVI with LabWindowsTM/CVITM Configure the Instrument Set the Reading Timeout GPIB023INSTR, Vifalse Printf %f, reading Chapter Chapter Using IVI with Matlab Development EnvironmentConfigure the IVI Driver TopicsUsing IVI with Matlab DMM in the Driver session field Configure and Control the Instrument Generate an Instrument WrapperCreate an Instance of the Instrument Connect to the InstrumentSet Reading Timeout Display ReadingDisconnect 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 NOM 0 V UL 0.5 V LL -0.5 CNX HI X20-2 LOVDC $ 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 Variantfalse Varianttrue Hr = driver-getDCVoltage&pDMMDCVoltHr = pDMMTrig-ConfigureAgilent34401TriggerSourceImmediate Display\0333041m Bad return from Close method\033m\n IEEE-488 Bus Configuration File Channel Build the ProjectPrepare the Run-Time System Environment MLALoad and Run the Project Chapter Chapter Using IVI with Visual Basic Add a Button Option Explicit Dim dmm As New Agilent33401Type 1.5 Type dmm.Trigger.Delay = Type dmm.CloseTips Further Information Chapter Chapter Using IVI with Agilent VEE Pro Launch the Instrument Manager and Select the DriverChapter 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 Instrument I/O InterchangeabilityAdvanced Topics IVI Configuration Store Advanced Topics Chapter IVI-COM IIviSessionFactory factory = new IviSessionFactoryClassDriver.InitializelogicalName, true, true String identifier = driver.Identity.IdentifierConsole.WriteLineIdentifier 0, identifier IIviDmm dmm = IIviDmmfactory.CreateDriverlogicalNameIVI-C Editing the Configuration Store Future DevelopmentIVI Drivers in Action Advanced Topics Chapter

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