Interfacing HP 34401A DMM with Labview 2010

Hey Everbody,
I am new to LV and have been handed over a project. A part of it is to interconnect HP34401A Digital Multimeter with the LV. i have used a GPIB interface for the interconnection and all drivers have been installed for this purpose. in the query i can see the DMM but do not know how to proceed.
any suggestions will be a great help

Did you try any of the examples? Help>Find Examples>Hardware Input and Output>Instrument Drivers.

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J'ai installé Labiew 2010 et le driver cDAQ sans souci.
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Adi wrote in message news:<[email protected]>...
> I'm using a GPIB-USB(Agilent) Inferface to communicate with my
> devices.I Install the drivers form agilent and Labview 6.0.2. MAX 2.0
> does not show me my USB-GBIP Interface and no devices. So i have
> download MAX 2.2 and now i can communicate with my devices. The
> problem ist, that i can't open the VISA session in LABVIEW, so that i
> can't communicate with my devices. I try to open the NI-Spy, but it
> show me an error. Have erverybody a idea how can i solve this problem.
> THX
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Les Hammer
[email protected]
Complete Test
PO Box 6
Loveland, CO. 80539
===========================================================
I understand you want to control GPIB instruments using NI LabVIEW, NI
VISA, and the Agilent 82357A USB/GPIB Interface.
This method works for me. Perhaps you can compare your results to
this procedure, and then make progress.
1. Starting Conditions:
I start with my HP Kayak XU800 PC (single 800 MHz CPU), with an NI
PCI-GPIB+ card installed.
My Agilent 82357A USB/GPIB Interface is not connected to PC nor
instrument.
The attached Visagpib01.vi LabVIEW program is on an uninstalled floppy
disk: A:\Visagpib01.vi
I format the C: hard disk and install Windows 2000 Professional. I
reboot.
Windows runs a Found New Hardware Wizard (for a PCI Simple
Communications Controller). I assume that is for the NI PCI-GPIB+
card. I click the Cancel button. I'll run a similar wizard AFTER I
install the NI software.
2. Install NI-488.2 for Windows:
I put in my NI-488.2 for Windows CD (July 2000, 500739E-00) and let it
autorun. I click on "Install NI-488.2 Software for Windows". I use
the default Destination Directory: C:\Program Files\National
Instruments\NI-488.2\ .
I choose the default "Typical" installation, and complete the
installation.
Now I click on "Explore CD" and run the "SetupVisa" icon to install
NI-VISA 2.5 . I use the default NI-VISA Folder: C:\VXIpnp\ . I
choose the default "Complete" installation, and complete the
installation.
I click the Yes button to reboot my PC.
Now that I have installed the NI software, the NI-488.2 Getting
Started Wizard runs. I click on "Verify your hardware and software
installation". It found my NI PCI-GPIB+ card as GPIB0. The Agilent
82357A will not be visible yet. I click the Exit button. I'm done
with this NI-488.2 Getting Started Wizard, so I click the x in the top
right of the window.
3. Install Agilent I/O Libraries for Windows:
I put in my Agilent I/O Libraries for Instrument Control for Windows
CD (L.01.00) and let it autorun. I click the Next button a few times
until I see 2 big buttons: Full Installation & Custom Installation.
Because this is the L.01.00 release and I installed the NI VISA first,
either button would work. But I'll be precise and click the Custom
Installation button. I use the default Destination Folder: C:\Program
Files\Agilent\IO Libraries . I choose "SICL and side-by-side Agilent
VISA Installation". This will leave the NI VISA as the primary VISA,
and install the Agilent VISA as secondary VISA. After a few clicks on
the Next button, it says the Agilent IO Libraries have been
successfully installed. I choose neither View Readme nor Run IO
Config. I click the Finish button.
Some Operating Systems may require a reboot here. My Windows 2000
does not.
4. Prove NI VISA is Primary VISA:
Start button - Programs - Accessories - Windows Explorer. Browse over
to and highlight My Computer\C:\WINNT\system32\visa32.dll . File
pulldown menu - Properties - Version tab. My file is National
Instrument's VISA Library 2.5.0.0 .
I click the Cancel button. File pulldown menu - Close.
5. Plug the 82357A into the PC:
I finally plug the 82357A into my PC's USB port (any USB port). The
standard 82357A live configure window pops up: "Agilent 82357A
USB/GPIB Interface Detected". Because Agilent VISA is installed, the
VISA Interface Name defaults to "GPIB0". Because I know I already
have a GPIB0 (my NI PCI-GPIB+ card), I click the Edit button and
change the VISA Interface Name to GPIB1, by clicking the nearby little
up arrow. I click the OK button.
6. Configure NI Software to Recognize Agilent Interfaces:
Start button - Programs - National Instruments - Measurement and
Automation Explorer. I click the OK button because I don't care when
MAX searches for new devices. Tools pulldown menu - NI-VISA -
Passport Editor. I put a checkmark in the "NIVisaTulip.dll - VISA
Library Passport for Tulip" line. I click the OK button. Because I
changed a setting, I need to click the OK button again. File pulldown
menu - Exit to exit MAX.
7. Access an Instrument through the 82357A:
The Agilent 82357A USB/GPIB Interface should now be accessible from
NI-VISA. With my 82357A plugged onto my HP 34401A Multimeter, Start
button - Programs - National Instruments - VISA - VISA Interactive
Control. Below the "GPIB1 (hpib7, 82357)" line, is a line for my
instrument, "GPIB1::23::INSTR". I double click on that "INSTR" line
to pop up a session window. Basic I/O tab - viWrite tab, I click the
Execute button to write the default "*IDN?\n" string. viRead tab, I
click the Execute button to read the expected
"HEWLETT-PACKARD,34401A,0,5-1-1\n" string. I'm done, so I click the x
in the top right of the window. File pulldown menu - Exit to exit the
VISA Interactive Control window.
8. Install NI LabVIEW Evaluation 6i:
I put in my NI LabVIEW Evaluation Software for Windows 2000/NT/Me/9x
CD (version 6i, 350778A-01) and let it autorun. I click the Install
button. Eventually I choose the Complete installation. It says
LabVIEW 6i Evaluation has been successfully installed. I click the
Finish button. Eventually I click the OK button.
9. Run the attached Visagpib01.vi LabVIEW program:
Start button - Programs - National Instruments LabVIEW 6i. I click
the lower left RED Start using LabVIEW button. I click the Open VI
button and enter the File name as A:\Visagpib01 . I close the
Controls and Tools palettes by clicking the x in the top right
corners. Notice the resource name field of "GPIB1::23::INSTR" to use
my GPIB1 82357A connected to my 34401A at GPIB address 23. Operate
pulldown menu - Run, and the read buffer field now says this expected
string: "HEWLETT-PACKARD,34401A,0,5-1-1". Running the example again
simply writes over the earlier string, and so does not appear to
change the display. The attached Visagpib01.vi LabVIEW program is
simplified from the "C:\Program Files\National Instruments\LabVIEW 6
Eval\Examples\instr\visa\SRQ Event Handling.vi" NI example program.
I attach 2 GIF files to describe the attached Visagpib01.vi program:
Visagpib01_panel.gif
Visagpib01_diag.gif
I hope this helps!
| Ted Cline
| IO Support
| Basic, Emerging and Systems Technologies (BEST) PGU
| Agilent Technologies
| CU-326, 815 14th Street SW, Loveland, CO 80537-6390 USA
| 800-452-4844 Customer Support (United States)
| 877-894-4414 Customer Support (Canada)
| 970-679-5260 FAX
| [email protected]
| ftp://ftp.agilent.com/pub/mpusup/index.html Postsales Support
GPIB and Connectivity Solutions:
http://www.agilent.com/find/xbv_pgr_gpib
IO Libraries:
http://www.agilent.com/find/iolib
http://www.agilent.com/find/iolibux
VEE:
http://www.agilent.com/find/vee
Instrument Drivers:
http://www.agilent.com/find/inst_drivers
http://www.agilent.com/find/inst_drivers_pnp

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