Hi,
I am trying to use the USB to GPIB cable. I tested the driver and it
works fine, it can read and write command just fine also. But when I
tried to control my instruments, I get error similar to this one:
hp34401a Initialize.viERRDriver Status: (Hex 0xBFFF00A5) The
interface type is valid
Hi Ann
A few things to check:
Have you installed the NI-488 drivers that came with the device?
Are you testing the USB-GPIB device with the standard GPIB card
installed? If so are you aware that the addressing of the devices
connected to the USB-GPIB card will then be different to indicate
Thanks, we got it. Another remark, the HP3852A driver for Labview does
not include the HP4708A (20 channel multiplexer with thermocouple
compensation). On the other hand, the Labwindows driver include this
driver.
We have an NI GPIB card connected with HP3852A dat acquisition and
control unit. The driver software for HP3852A available from ni web
site does not include DLL files nedded by Labview. Do you have an idea
how to proceed with Labview programming of HP3852A
Windows2000, GPIB, HP3852A, Lbview
Did you download the LabVIEW or CVI driver? I didn't check every
function but the ones I did were pure G code and no DLLs are required.
The LabVIEW driver is located A
href=http://zone.ni.com/idnet97.nsf/9b2b33e1993d877786256436006ec498/8452df63d097adc1862568ab005fbc79?OpenDocument;here/A.
Hi,
I have a Labview-based measurement application that communicates with a GPIB-equipped
mulitmeter. I would like to turn this application into a GPIB instrument itself, so
that it can be connected to and run under our test executive. I have not made any LV
apps acting as GPIB instruments
I tried connecting to the instrument via MAX, and it works. The
instrument is listed and I can run a basic query and get a response.
Using the I/O Assistant, though, running either the Select Instrument
or Read and Parse steps results in a timeout. It seems that it doesn't
want to receive data
In order to do a Read, you most likely need to do a Write first. Some
instruments continually output data over the bus, but that is rare.
Try using a Query and Parse block and use *idn? or whatever
identification query your instrument supports, and see if that works.
If you aren't into gory technical details, skip this message.
NI has 4 GPIB cards:
Looking at the NI web pages there are 4 distinct, PCI-GPIB interfaces.
#1 PCI-GPIB for windows 95/NT/200/XP/Me/98/Solaris
http://sine.ni.com/apps/we/nioc.vp?cid=5310lang=US
#2 PCI-GPIB+
http://sine.ni.com/apps
Hello,
Julien is probably correct. Take a look at the following KB that
descibes possible reasons for the many different errors in gpib, and
EABO (6) is one of those.
http://digital.ni.com/public.nsf/websearch/2FA525A8585A92E9862566EE002A3755?OpenDocument
Regards,
Steven B.
Applications
Hello Chris,
It sounds like you have the older DOS version of our GPIB driver. The
GPIB.COM is not meant to be executed, but is intended to be loaded in
your config.sys file with a DEVICE=C:\path\GPIB.COM call.
If you are using an AT-GPIB card, note that you are using an obsolete
card on your
I have installed an AT-GPIB following the exact steps in the
installation guide (including the compatibility release), and the
software/hardware diagnostics say that the device is working. The
device is not listed in the Device Manager though, for some reason,
and Add New Hardware does not list
What is the cause of that error:Error 6 occurred at GPIB Write in
test_terminator.vi Possible reason(s):LabVIEW: Generic file I/O
error.
---
NI-488: I/O operation aborted.
We are trying to communicate with a device throughout a GPIB-488.2
card.
Hi,
Reason : A possible reason could be that the instrument didn't have
enough time to receive the command you've tried to send.
What to do : Try and increase the timeout value for the GPIB
communications.
I had the same problem when sending configuration commands to
oscilloscopes.
Hope
I have recently installed the software for the AT-GPIB card onto my
PC, running WIN98. When I click on the icon for GPIB.com I receive an
error message of an illegal operation. The program tried to execute
an invalid instruction. Fault location 2B12:0102. Interrupts in
service: none.
Many
Error 6 is a GPIB Time Out.
1) Can the meter respond in 1 second?
- if not, increase the timeout
- P.S. I question why you put a clock wait in the
same sequence as the read. Is it suppose to wait
one second, and then read during the next, read
then wait, or do those
As it turns out the problem was the MEAS command isn't what I thought
it was. So I was able to fix that problem. The clock wait itself I
removed from the program as it was just a debugging method. I am still
getting a weird reading error though were for some reason the gpib
card will return
Hello,
Yes, depending on the kind of termination your instrument is
expecting, you have to terminate with the correct termination. Some
instruments require a carriage return and some require a line feed.
Others will require both. You need to check with the instrument
manufacturer to determine
Hello,
I'm sorry, but attached a KB that described termination in Serial, but
I meant to attach this one for termination of GPIB.
http://digital.ni.com/public.nsf/websearch/9BAA60824D8A94FA86256ADA0058F18A?OpenDocument
Regards,
Steven B.
Applications Engineering
National Instruments
We have. The only thing I don't understand is that it will
communicate with other devices, just not the K20 Controller. Thank
you, if you have any other suggestions please I need help.
I had a somewhat similar problem recently with an MM2000 Motion
Controller. It even showed up on the NI GPIB Communicator list but
wouldn't talk to me at all. I went over to the instrument panel and
accessed the gpib address setting on it and saw that it was still set
correctly, but for some
Hello Chris,
I have another suggestion for you to try. Is it possible that you are
not using the correct termination method for your instrument? It
sounds like the method of termination that this instrument needs may
be different than your other instruments.
Hope this helps!
Regards,
Steven
That would be a very good thing to check. I had a peice of equipment
go haywire on me because I was ending all of my commands with carriage
returns instead of linefeeds.
If I understand you correctly, in the properties of the NI
Communicator for each instrument there are options for Termination
Methods in the Configure EOS. Those options are set the same between
the GPIB and the K20, and I have also tried the different options,
along with going
Have you checked to make sure that the GPIB address is set correctly
on both the instrument and your program?
Hey Dirk,
If I understand your question you just want to have two different GPIB
controllers connected to the same GPIB bus. In this case you will
just have to make sure that they have different addresses and one will
be set as the controller by default and then the other one can be made
is in a portable rack and rolls up to a vacuum oven where
the process takes place. I'm getting pressure readings from an
ionization gauge controller using GPIB. I have 4 systems total and I
would like to try to link two together so that I can process twice as
many units at a time on the same vacuum oven
GPIB) and there are no
sequence structures or local variables (not required).
Is there a way to connect two PCs via GPIB, both running a Labview
program? I just want to excange text files between them. The GPIB
cards are PCMCIA-GPIB cards from NI.
Years of working with GPIB has taught me many things, but the most
important has been that when it works, it's great, when it doesn't,
it's very frustrating. 10 meters might be a problem, but I doubt it.
GPIB will usually work 25-50% beyond the written specs, especially
with so few instruments
As Les said, it's not exactly trivial. A similar question came up on
the GPIB forum A href=
http://exchange.ni.com/servlet/ProcessRequest?RHIVEID=101RPAGEID=135HOID=5065000800FAD1USEARCHCONTEXT_CATEGORY_0=_26_%24_13_USEARCHCONTEXT_CATEGORY_S=0UCATEGORY_0=_26_%24_13_UCATEGORY_S=0;here
You can, but you might not enjoy it.
I don't have the specifics for your GPIB cards, so I don't know how to
do it for them, but in a previous job we put one of the GPIB cards in
a non-System Controller mode. Then we could make it look like an
instrument. Sorry I can't provide more details
NIC in each PC is probably the best (and cheapest) way to go.
Definitely the easiest.
G!!
The problems here are threatening to spiral out of control. We have two
GPIB-ENET/100 boxes in use, one in my office and one in the lab. BOTH of
them have become EXTREMELY unreliable. The extremely long delay I have
observed appears directly tied to problems with the ENETs
PROTECTED] On Behalf Of George Gatling
(Contractor)
Sent: Tuesday, May 04, 2004 3:05 PM
To: [EMAIL PROTECTED]
Subject: Re: VISA Refnum Delays GPIB-ENET
G!!
The problems here are threatening to spiral out of control. We have two
GPIB-ENET/100 boxes in use, one in my office and one in the lab
The forums seem to be working okay, I wonder if there is a firewall
issue. You can upload the files to ftp.ni.com in the Incoming folder.
Zip them up and name them BCLioness.zip and post here when you have
done that and I'll take a look at them. Sorry for all the trouble.
Scott
Lori,
Again, this is a very intriguing problem. When the bus is broken
and the offending instrument is on it, do you get the error in MAX
that says that it could not find any instruments, or does it simply
not tell you anything after you hit Scan for instruments? Looking
at your SPY file, I see
It simply doesn't tell me anything, looks blank like it would if there
were no instruments to find. Thanks for telling me I can still use
the instrument in LabVIEW applications, I tried it and it works, which
is the main thing I needed.
Thanks again,
Lori
hello Labviewers,
I'm trying to control a vector network analyzer (at8722ES) using the
agilent USB-GPIB interface 82357a and Labview 7.
But the devices and the software don't communicate with each other.
I've read carefully through these postings:
http://exchange.ni.com/servlet/ProcessRequest
Hi Simon,
see this link, maybe it is helpful for you.
http://exchange.ni.com/servlet/ProcessRequest?RHIVEID=101RNAME=ViewQuestionHOID=50650008007371ECategory=Instrument+Connectivity.GPIB
TN
-Original Message-
From: Gokul [SMTP:[EMAIL PROTECTED]
Sent: Thursday, March 11, 2004 11:04 AM
To: [EMAIL PROTECTED]
Subject: GPIB
Hi,
I am still having problems with the Keithley 237 and
HP Agilent 34401A. Probably my previous post was too
wordy, that I did not get any replies
Sorry about that, the site has been saying it's down for maintenance
when I try to attach the files, I have been checking since Friday and
it still isn't working ... is there something else I should try to get
you these files?
Hi Lori,
Your attachments are all showing 0 bytes, could you try them again?
Thanks,
Scott B.
Applications Engineer
National Instruments
4 other instruments are on the bus, but I tried taking all them off
and just having the 4083, and it didn't get listed in MA. NI spy
tracks the commands sent over the GPIB bus, it shows red color when
there is an error. When I look at it after searching for instruments,
it shows successful
Hello,
Could you give me more details about your GPIB setup? How many
instruments do you have on the bus? It sounds like the 4083 is
breaking the GPIB bus where no other instruments can communicate on
the bus when you have the 4083 connected, is this what you're seeing?
What do you mean that NI
Labview 7.0
Communication with GPIB Instrumnet(Keithley 2400). Before building the
appliction, the communication runs without errors. But if I run the
build program with runtime engine, an I/O error is indicated, and the
instrumnet does not go back to the idle state(it hungs). Does anyone
have
idn? gives the status of the front panel (C 0 0 0 ... ), IBIC shows me
the 4083 at address 18 (not used on any other equipment). When I have
the 4083 hooked up to the network, none of the equipment is listed on
Measurement Automation, although NI Spy shows it sees everything,
including the 4083.
I apologize for the cross posting, but I have gotten messages from all these groups!
There is a new version of the PCI-GPIB driver for Mac OS X. Due to people asking, I
have recompiled the driver for Mac OS X and corrected some problems so it now runs
under Panther. This has minimal testing
Click a
href=http://zone.ni.com/devzone/devzone.nsf/webproducts/a95c253dfb5fdb0986256786000be3c3?opendocument
here/a for useful information/ link.
Currently we are using labview 5.0 to control the testing instrument
(eg. HP DC power supply, Spectrum Analyzer, Signal Generator) through
GPIB. As our knowledge of labview is not very good, could you pls give
some simple guideline to start and work with?
Hi
I am pretty new to LabView programming and am having a
project that involves acquisition using GPIB. I have
never used GPIB before.
The two instruments that that I will be using are
Keithley 237 HV Source and a HP Agilent Multimeter.
The process is basically applying current from
PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Gokul
Sent: Thursday, 26 February, 2004 14:31 PM
To: [EMAIL PROTECTED]
Subject: Using GPIB
Hi
I am pretty new to LabView programming and am having a project that involves
acquisition using GPIB. I have never used GPIB before.
The two instruments
me know as to what mistake I am
making. I hope I am clear in explaining the problem.
Thank you all for the help,
Gokul
--- Gokul [EMAIL PROTECTED] wrote:
Hi
I am pretty new to LabView programming and am having
a
project that involves acquisition using GPIB. I have
never used GPIB
programming and am having
a
project that involves acquisition using GPIB. I have
never used GPIB before.
The two instruments that that I will be using are
Keithley 237 HV Source and a HP Agilent Multimeter.
The process is basically applying current from the
HVsource to material in test
Halloechen!
I try to find all conncected GPIB devices with the GPIB function
FindLstn. However, additionally to the really connceted devices
this function find something with address #21. If I disconnect all
devices, it really finds nothing (as expected). But no matter
which devices
Hi,
I am still having problems with the Keithley 237 and
HP Agilent 34401A. Probably my previous post was too
wordy, that I did not get any replies. Sorry about
that. I use the Keithley Example program downloaded to
acquire the data from the instrument at GPIB Addr. 16.
If I put this example
Hi,
I am still having problems with the Keithley 237 and
HP Agilent 34401A. Probably my previous post was too
wordy, that I did not get any replies. Sorry about
that. I use the Keithley Example program downloaded to
acquire the data from the instrument at GPIB Addr. 16.
If I put this example
Anadigm - The Programmable Analog Company
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Gokul
Sent: Thursday, 11 March, 2004 9:04 AM
To: [EMAIL PROTECTED]
Subject: GPIB
Hi,
I am still having problems with the Keithley 237 and HP Agilent 34401A.
Probably
by: Subject: Re: GPIB
[EMAIL PROTECTED]
a.army.mil
Becky FAB!!
This work a treat. I supprised that the tulip dll should be disabled by
default. This cause a great deal of time wasting. But thank all the same.
Since you have NI-VISA installed, you need to make it aware of Agilent VISA.
This is not enabled by default. You would need to go into
Hi
I an trying to product a program in labview that increaments a GPIB command
to a Function Generator.
The command format is: FRQ 1.0E + 2 (this equals 100Hz). I need to
increament this up 1MHz so,
I have written a bit of psudo code to demonstrate what I require.
For i = 1Hz to 1MHz
Address 21 is the address of your computer's GPIB card. This is your
phantom device. Apparently your other devices are making it look
like a real address.
[EMAIL PROTECTED]
Thanks.
Ninskaya
Hi Matthew, thank you for replying. I forgot to attach the vi.
Actually, I have another question. I'm not able to make a GPIB
connection because the driver hasn't been well installed. I would like
to uninstall it in order to reinstall it properly, but there no such
option on the CD rom. How could
Hi Dennis, I'm sorry for all these questions. The clicking of the
right VISA arrow doesn't give me any VISA resource names on my system.
I did a scan with Max which tells me that I don't have any GPIB
connection (which isn't the case), altough when I check on Scope
Explorer it tells me that I'm
Do you have an NI GPIB board? If you do, you might want to check the
installation of VISA software and even try doing a re-install. I'm not
sure what the LeCroy software might be doing but another thing to try
is to make sure it's closed and not running when working with MAX.
Hello Ninskaya,
Thank you for contacting National Instruments.
I am not seeing your attached VI. If you still need help with this
issue, let me know. Try reposting the VI you are using, and if
possible, provide a little information about the specific instrument
you are trying to communicate
Hi Dennis Knutson, thanks a lot for your help. I am using
ScopeExplorer as a scope. I am sorry, I don't really understand in
which form the data will be. Shall I use the Read Visa vi like another
person suggested and if yes how can I found out about the GPIB
address?
Thanks,
Ninskaya
Sorry, the scope is a Lecroy Scope Explorer version 2.12.
Ninskaya
Thanks a lot.
Ninskaya
Like I said in my answer to one of your other postings, you've got the
wrong driver. The HP34401 is a DMM. You should be able to use the VISA
Open from the Instrument I/OVISAVISA Advanced palette to open a
connection to the instrument. If you create a VISA resource name
control or constant you
This question has been mailed to Dennis Knudson.
An HP34401A instrument driver will not work for a LeCroy scope. I
don't know why the driver uses the old VISA Open function but that's
the only thing that should work in the driver assuming that you have
the correct address. Do a scan for instruments in MAX to verify the
address or check the
ScopeExplorer is not a scope. It is a program that communicates with
LeCroy scopes. Go to LeCroy's web site for A
href=http://www.lecroy.com/tm/library/software/LabView/LabViewDrivers.asp?menuid=4;LabVIEW
Drivers/A or NI's Instrument Driver Network for A
. Most drivers come with an example that do this
already. Put this in a loop and you'll have continously updating data.
There is no such thing as real time. The max data transfer rate for
GPIB is 1MB/sec and real world numbers are usually much less. From the
number of samples you request from
Guess i know what u mean. I have to get my own server that is
accessible to other users so i can upload my VI. Thank you.
Hello Jackolim,
Thank you for contacting National Instruments.
What do you want your remote panel to do? There are basically two
different methods. In one you just monitor your front panel over the
internet, like screen shots. The other method allows you to actually
adjust the controls
The easiest way of doing this is using web publishing tool. Check
the user manual for more detail. Also you can use VI server,
datasocket to accomplish this. You can find several example regarding
VI server and datasocket that ship with labview. Good Luck.
Hi all, I have created a VI that make use of GPIB to control some of
my lab equipment. The problem now i face is how can i set this VI as a
remote panel for internet. I have a free website under
www.bravenet.com . How can I do such a remote panel thing? thanks
Who worked with ICS' Model 4896 GPIB? I can not count the data from
the module. Can prompt as it to make. It is desirable with examples
(data read-out from the module and data transmission between channels.
It is in advance grateful.
I can not count the data from the module. Can prompt
An easier method than locking is to build a higher level vi that
handles complete commands (writing and reading) to the analyzer. In
this way labview will automatically schedule the first caller and put
the second (or more) caller on wait.
This synchronisation is perfect for such an application.
the same time.
When this happens the Spectrum Analyzer freezes up.
Does any body have some example code that allows two VI's to Time
share one piece og GPIB eqipment.
I would suggest that you look at the shipping example called
Locking.vi. It uses the VISA Lock and VISA Unlock functions to control
access to a single resource. The example shows how it works in a
single VI but as the text mentions, it would typically be used in two
separate ones.
thanks, will try.
thanks very much, i'll give it a go
Matthews,
Thankyou for your response.
I have aquired LabView drivers for my card, which consists of a VI
for each command in the GPIB command set.
When I run the NI 488.2 getting started wizard it detects 488.2
software but then says that it can't find any 488.2 hardware.
Windows tells me
with the
instrument.then you can start using the instrument with labview using
some examples from the GPIB section to write and read, make sure to
give enough time-out 3600, and mode as 3 for example
if more queries contact
Regards
[EMAIL PROTECTED]
Based on the data you included in your question, I would guess your
(A) analyzer is set to return data in ASCII format while your (B)
analyzer is set to return data in binary format. Typically data
encoding format is settable on many instrument. Therefore, you can set
(B) to return data in the
their resources archived on-line.
If you are having problems actually getting your GPIB card to
communicate with and send instructions to your instrument, let me
know.
Matthew C
Applications Engineer
National Instruments
I am looking for LabView Drivers for an axiomtek AX4810 PCI-GPIB card,
I have tried the manufacturer and the vendor. The data sheet for the
card says that it's 100% labview PCI-GPIB compatable. Windows (98)
says that it is working properly but I can't get LabView to find it.
It says that I don't
Hi
I have an old application involving GPIB and RS232 communication with
several instruments. For GPIB I use the oldest 488.1 VI's. Everything,
datacollecting, storing, etc, are done in separate parallel loops.
There are also a DDE server in a separate loop to hold all collected
data. We use
Yes, I used MAX. The GPIB card shows up there. So does the GPIB
instrument. I tried to test the interface with the communicate with
device button. The query just timed out. We un-installed the GPIB
card and then re-installed it. We un-installed all LV programs and
then re-installed LV6.1
Print button), and compare the
readings.
Unfortunately, my frequency counter is not yet hooked up to the GPIB
card, so I cannot test out a vi.
-JLV-
There is a DIGITs command that sets the resolution. After a reset, the
instrument is set for 4 digits I believe. You should be able to find
the command in the manual in the :Sense subsystem. I use
:SENS:FREQ:ARM:STOP:DIG 6 to set my counter for 6 digit resolution on
frequency measurements.
We installed LV6.1 on our Win2000 machine. GPIB interface no longer
works. We had been using LV6.0.2.
Let me understand what you are trying to do..
Do you want to use the GPIB commands and send them through the COM
port?
Or
Do you have a set of serial commands that you want to send through
the COM port?
I don't think you can send GPIB commands through the serial port. The
embedded software
Dear All,
In the Measurement and Automation Explorer, When I configure the GPIB card,
there is an Advanced-Items checkbox for Enable Auto Polling in the
Configure window.
What kind of Polling is it, Serial, Parallel, or other?
In Labview 488 function palette, which function will turn it ON/OFF
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