HP Drive manual Close the Session, Tips Another Method to Display the Reading

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Close the Session

Now that you have completed all of the driver operations, you should close the driver session to free resources.

1Double-click to add another operation. The Select an Operation dialog box appears.

2Select Close to release all resources associated with the simulated Agilent 34401. Click OK.

Display the Reading

1To display the measurement, from the Main Menu select Display, and click AlphaNumeric. Place the AlphaNumeric object on your workspace.

2Connect a wire from the return output terminal on To/From myDmm to the input terminal of the AlphaNumeric object.

3Click F5 or the Right Arrow button on the toolbar to run the program. The Display returns a simulated result.

Tips

Another Method to Display the Reading

You can display the measurement in another way as well. From the Main Menu, select select Data, Variable, and click Declare Variable. Declare a global variable named agilent34401Class with a Type Object and Sub Type .NET. Select Edit and in the Specify Object Type dialog, select the following:

•Agilent.Agilent34401.Interop in the Assembly field

•Agilent.Agilent34401.Interop in the Namespace field

•Agilent34401Class in the Type field

Then delete the agilent34401Class output terminal. You can now share this IVI- COM object with other To/From objects or formula objects in VEE. This will let you use multiple objects for the same driver instance without creating all of your driver commands in one object.

Chapter 10

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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 Paws Using IVI with MatlabUsing IVI with Measure Foundry Using IVI with Visual Basic 6.0 Using IVI with Agilent VEE ProAdvanced Topics Purpose Why Use an Instrument Driver?Chapter Introduction Why IVI? Class IVI Driver Why Use an IVI Driver? Shared Components Download and Install IVI DriversFlavors of IVI Drivers Familiarizing Yourself with the Driver ExamplesIntroduction Chapter Using IVI-COM in C++ Chapter Using IVI with Visual C++Download and Install the Driver EnvironmentCreate a New Project and Import the Driver Type Libraries \Program Files\Ivi\BinUsing IVI with Visual C++ Dmm-ConfigureIviDmmFunctionDCVolts, 1.5 Configure the InstrumentSet the Trigger Delay Dmm-Trigger-Delay =Close the Session Set the Reading Timeout/Display the ReadingError Checking Exit1 IAgilent34401Ptr dmmuuidofAgilent34401 try Using IVI-C in Visual C++Build and Run the Application $VXIPNPPATHWinNT\include \Program Files\IVI\Lib\msc\Program Files\IVI\include Chapter Goto Error else error = error #endif Define Error CheckingError = #ifndef checkErr #define checkErrfCallIf session Hp34401aClosesession Set the Trigger and Trigger DelayCheckErr hp34401aRead session, 1000, &reading 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 Type double reading Dmm.DCVoltage.Configure1.5Dmm.Trigger.Delay = Dmm.CloseTips Agilent34401Class dmm = new Agilent34401ClassOption Explicit On Imports Agilent.Agilent34401.InteropConsole.WriteLineThe reading is 0, reading Console.ReadLine Chapter Chapter Using IVI with LabVIEWTM Using IVI-CCreate a Project and Access the Driver Using IVI with LabVIEW Take the Reading Run the Application Add Error CheckingDisplay the Reading 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 Create an Instance of the Instrument Configure and Control the InstrumentGenerate an Instrument Wrapper Connect to the InstrumentDisconnect from the Instrument Set Reading TimeoutDisplay Reading 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 Close Session Data SinkCompile and Run Using IVI with Measure Foundry Chapter Chapter Using IVI with Paws Prepare the Paws Environment VDC $ NOM 0 V UL 0.5 V LL -0.5CNX HI X20-2 LO Cnx hi DMM-Hi, lo DMM-LoAdd the Wcem Interface Functions Connect to the IVI-COM Driver #include DMM.h #include DMM.h Extern CComPtrIAgilent34401 driverExtern Hresult hr Variantfalse Varianttrue Hr = driver-getDCVoltage&pDMMDCVoltHr = pDMMTrig-ConfigureAgilent34401TriggerSourceImmediate Display\0333041m Bad return from Close method\033m\n Prepare the Run-Time System Environment IEEE-488 Bus Configuration File ChannelBuild the Project 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 Driver API Chapter Advanced TopicsIVI Architecture Driver Types Advanced Topics Instrument I/O InterchangeabilityAdvanced Topics IVI Configuration Store Advanced Topics Chapter IVI-COM IIviSessionFactory factory = new IviSessionFactoryClassConsole.WriteLineIdentifier 0, identifier Driver.InitializelogicalName, true, trueString identifier = driver.Identity.Identifier IIviDmm dmm = IIviDmmfactory.CreateDriverlogicalNameIVI-C IVI Drivers in Action Editing the Configuration StoreFuture Development Advanced Topics Chapter

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