HP Drive manual Set the Trigger and Trigger Delay, CheckErr hp34401aRead session, 1000, &reading

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Simulate=1 in the Options parameter sets the driver to simulation mode

&session assigns the Instrument Handle to the variable “session” defined above

Configure the Instrument

1To set the range to 1.5 volts and resolution to 0.001 millivolts, type:

checkErr( hp34401a_ConfigureMeasurement (session, HP34401A_VAL_DC_VOLTS, 1.5, 0.001));

Set the Trigger and Trigger Delay

1To set the trigger source to immediate and the trigger delay to 0.01 seconds, type:

checkErr( hp34401a_ConfigureTrigger (session, HP34401A_VAL_IMMEDIATE, 0.01));

Set the Reading Timeout/Display the Reading

1To take a reading from the instrument and to set the reading timeout to 1 second (1000 ms) type:

checkErr( hp34401a_Read (session, 1000, &reading);

Note: The Read function takes a reading from the instrument and assigns the result to the variable “reading” defined above.

2To display the reading, use a printf statement. Type printf (“Reading = %f”, reading);

Close the Session

To close out the instance of the driver and free resources, type

If (session)

hp34401a_Close(session);

The final code should contain the code below:

#include "stdafx.h" #include <hp34401a.h>

#ifndef checkErr

#define checkErr(fCall) \

if (error = (fCall), (error = (error < 0)? error : VI_SUCCESS)) \

{goto Error;} else error = error

Chapter 2

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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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