"Read Single Point" Keithley 2400 Problems

Hello!
I am recentely having some problems with the "Read Single Point Measurements" function in Labview 2012. I have already sucessfully used my Keithley 2400 in other programs to sweep the voltage, but now I am trying to use it also to read the current across my sample.
I wrote a very simple program, which resemble the one you can find among Labview examples (see 1st attachment). The only differences are a sweep-subVI and a "for" cycle. My problem occurs at the "Read" Keithley function. On the Keithley's screen I have the following errors:
- 113 : undefined header;
- 230: data corrupt or stale;
- 420: query unterminated.
While in the Block diagram, when the system gets to the "read" function, the error -1074000000 shows up.
I have found a lot of posts on this topic, but unfortunately I could not find the any solution for me. I also tried the 2nd attached program, to check the comunication to the instrument, but errors still occur. In "Measurements and Automatic", it says that the instrument is working properly.
Do you have any ideas?
Thanks
Attachments:
Keithley 24XX Sweep and Acquire Measurements.vi ‏26 KB
Basic Serial Write and Read (1).vi ‏26 KB

The following video demonstrates how to check the firmware revision: http://www.keithley.nl/centralized_display?mn=2400&assetid=55934.
In order to update the firmware you will be need to download a flash program and the firmware file. gAfter obtaining the Flash program and the Firmware file from Keithley Application support staff, unzip the three files in a folder of your choice and run the "setup.exe" program. Follow the instructions to install the program. When the installation is complete, launch the program from your Windows Start menu under Programs/Keithley Instruments. The Application support staff will also provide the file for the latest firmware revision. Put that file in a folder where you can find it and then run the Flash Wizard32 program. The program will autodetect the instrument and request to specify the firmware file.
This link contains the flash program: http://www.keithley.com/base_download?dassetid=52609
See attactment for the firmware revision.
Attachments:
2400c30.zip ‏358 KB

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Keithley 2400 Problems

Hi,
I'm trying to run a Keithley 2400 SourceMeter with LabView using the latest driver (Keithley 24XX) and the example VI "Keithley 24XX Read Single.vi".
After selecting the GPIB Adress I run the program and Labview throws the following error message:
Error -1074000000 occurred at Keithley 24XX.lvlib:Error Query.vi
Possible reason(s):
Instrument reports:
-113,"Undefined header"
-230,"Data corrupt or stale"
-420,"Query UNTERMINATED"
0,"No error"
Complete call chain:
Keithley 24XX.lvlib:Error Query.vi
Keithley 24XX.lvlib:Read (Multiple Points).vi
Keithley 24XX.lvlib:Read (Single Point).vi
Keithley 24XX Read Single.vi
I also have a Keithley 2000 Multimeter up and runing with it's latest driver and the example program and it works just fine.
What could be the problem?
Thanks in advance!
Solved!
Go to Solution.

There should be examples with those drivers. If not, then go through the driver palette and think about what you would do manually. Find those functions to do what you would do manually.
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KEITHLEY 2400 code problem

Hello
I am trying to acquire data from keithley 2400 using labview 9, NI VISA 4.5.1, and serial RS 232 interface.
I used the attached "Keithley 24XX Read Single.vi" ( obtained from NI certified drivers ) and got this message-
Error -1073807346
occurred at VISA Write in Keithley 24XX.lvlib:Error Query.vi->Keithley 24XX.lvlib:Configure Measurement.vi->Keithley 24XX Read Single.vi
The keithley meter indicated "REM", as soon as VI was run, which means "Remote" operation and froze up.
Under MAX, i can see COM1 and device status is "Device is working properly"
Kindly help in debugging
1. Should i use GPIB? Are the drivers good for serial interface? I used the first NI certified driver indicating serial/GPIB compatibility.
2.Is keithley meter being recognized by MAX?
3. Any errors in the codes?
Regards
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Attachments:
Keithley 24XX Read Single.vi ‏24 KB

you guys are amazing!
I switched off all other vi and tested the "Basic serial read and write.vi". It worked fine.
So the first step regarding MAX communication is ok.
Now, i tested the attached "Read (Single Point).vi and it showed the following error, after some time.
code = -1073807339
VISA Read in Keithley 24XX.lvlib:Error Query.vi->Keithley 24XX.lvlib:Read (Single Point).vi
If i get this to work, that will solve the problem.
Attachments:
Read (Single Point).vi ‏17 KB
Keithley 24XX.lvlib ‏12 KB

Error using the Keithley 2400

Hi, I am pretty new to LabVIEW and right now I am just trying to set up a simple test (source current, measure voltage) using the Keithley 2400 and Labview 8.2
I got the driver for this instrument off of NI's website at
http://sine.ni.com/apps/utf8/niid_web_display.download_page?p_id_guid=25B255F3AA83660EE0440003BA7CCD...
In the Measurement and Automator it sees the Keithley (GPIB0::14::INSTR) and I also gave it an alias so it is easier to find amungst the other hardware current set up.
I wrote a simple program using some of the VIs in the driver to source a current and read a voltage. When the program runs, it errors out, and then after it errors the keithley still runs the test. I can see the measurement on the front panel of the instrument however it does not send anything back to the computer.
I then tried to just run an example found in the driver and I get the exact same error.
Error -1074000000 occurred at Keithley 24XX.lvlib:Error Query.vi
Possible reason(s):
Instrument reports:
-113,"Undefined header"
0,"No error"
Complete call chain:
     Keithley 24XX.lvlib:Error Query.vi
     Keithley 24XX.lvlib:Read (Multiple Points).vi
     Keithley 24XX.lvlib:Read (Single Point).vi
     Keithley 24XX Read Single.vi
Anyone have any idea's as to what might be causing this error? Any help would be greatly appreciated
Nolan

Hello nblue:
Can you communicate with the Keithley 2400 in Measurement and Automation? Do you know if there is a query command for the instrument, if so can you test to see if you can query the instrument to make sure it is working.
Regards,
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Applications Engineer
National Instruments
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Keithley 2400 errors

Hi ,
I want to do sweep measurement using keithley 2400 with labview 2010. Here are the errors I came across.
error running read single.vi
Error -1074000000 occurred at Keithley 24XX.lvlib:Error Query.vi
Possible reason(s):
Instrument reports:
-113,"Undefined header"
-230,"Data corrupt or stale"
-420,"Query UNTERMINATED"
0,"No error"
Complete call chain:
     Keithley 24XX.lvlib:Error Query.vi
     Keithley 24XX.lvlib:Read (Multiple Points).vi
     Keithley 24XX.lvlib:Read (Single Point).vi
     Keithley 24XX Read Single.vi
running error query.vi from keithley24xx lib----
code
d-1073807346
VISA Write in Keithley 24XX.lvlib:Error Query.vi
I downloaded keithley 2400 driver in NI website.
http://sine.ni.com/apps/utf8/niid_web_display.download_page?p_id_guid=25B255F3AA83660EE0440003BA7CCD...
I am very new to labview and keithley 2400. Kindly help me in this regard. Please give a detailed reply.

Thanks for your reply. I have posted the VI and a screen print of MAX communication.
Attachments:
Keithley 24XX Sweep and Acquire Measurements.vi ‏26 KB
NI- MAX.JPG ‏111 KB

Keithley 2400 Meter Read dans une boucle - probleme de status byte read

Bonjour,
j'utilise un Keithley 2400 pour mesurer un potentiel. J'ai débuté en utilisant le modèle Read.vi du driver. Dans mon cas, la portion "read single" se trouve dans une boucle for et après un certain nombre de mesures (cela semble aléatoire), la fonction gèle et en remontant les étapes, on découvre qu'il s'agit de la lecture de "status byte" qui ne reçoit aucune réponse en amont. Il faut alors redémarrer complètement le programme. Celà survient à chaque fois et après un nombre d'itérations variable.
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Merci.

Bonsoir PG123,
Ce que je vois directement dans votre VI c'est le fait que vous exécutiez à la vitesse maximum votre boucle While sans le moindre cadencement ne laissant ainsi jamais de temps disponible au processeur pour effectuer d'autres tâches. Il est propable de plus que l'instrument ne supporte pas un nombre de requêtes aussi élevée saturant peut être son buffer ou ne laissant pas le temps à l'instrument d'écrire correctement les valeurs.
De plus, je pense que vous n'avez pas besoin de récupérer à la vitesse maximum toutes les valeurs possibles provenant de votre instrument. C'est pourquoi je pense qu'une lecture toutes les 200ms suffirait déjà amplement.
Voici donc à quoi devrait ressembler l'intérieur de votre boucle While :
Essayez avec un cadencement d'1 seconde (1000ms en entrée de la fonction) dans un premier temps et voyez si le problème de gel se produit. Si ce n'est pas le cas, vous pourrez alors progressivement diminuer la valeur de cadencement (jusqu'à 200ms minimum, celà devrait suffire comme déjà dit au dessus.
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Hello all,
I tried to controll a keithley 2400 source meter with Labtracer using a NI GPIB-USB-HI card but when I run the test is send me this error message: "There was ab error reported on Visa Read in Query. Test aborted. Error code: -1073807339"
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ACE.docx ‏133 KB

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Attachments:
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How can I measure above 100 point by Keithley 2400?

Hello!
I am using Keithley 2400 and Labview 6.0. I have some questions.
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Hello everyone,
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Good Afternoon PiotrW,
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Keithley 2400 VISA driver limited resolution

Hi,
I have a Keithley 2400 sourcemeter, what I use in the +-1mA range, as a current-source. This is the driving part of a PID control.
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In this low +-1 milliAmp range, the usable resolution is 50 nanoAmperes. In manual mode, everything is ok, I can set for example an output current to be:
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Go to Solution.
Attachments:
Configure Output.vi ‏18 KB

Thanks very much!
Now I learnt that, I should be always suspicious even with "official" libraries and drivers.
Actually there are two LabView drivers for Keithley 2400, one from Keithley, it is an exe installer type, and the other from National Instruments. I became curious about this bug, and I checked the Keithley VISA drivers, they are okey, they use everywhere double precision variables.
But if you have a look at the NI Keithley 24XX.lvlib:VI Tree.vi, where is the full list for available VIs, there are many problems I think. At many places (voltage sensing, sourcing, etc) the programmer just used single precision variables to pass information.
I think these problems should be reported toward NI, but I do not know what is the way to do this...

Keithley 2400 Trigger 2000

Hi,
I have tried for a couple of days to let a Keithley 2400 source current and measure voltage and at the same time trigger a DMM2000 on which a current will be measured. This is for use in a LIV characterization. I�m using Labview but prefer to write directly to the bus instead of using the Labview drivers, which I find a bit complicated to use.
First I configure the 2400 with the following commands
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SE
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You may wish to try this. I struggled with a 2400 for some time. After a single reading, the buffer in the 2400 contains current, voltage, ohms, a timestamp and another variable. You have to read the entire buffer of the 2400 or it ignors future commands. I struggled with the 2400 drivers also. The help files of the drivers did not describe one of the variable inputs. Finally, I figured out that it was leaving data in the buffer. I increased the variable to read all five values and it finally worked!
You will have a different solution because you are not using the drivers. But I suspect you may have the same problem. You will have to write commands to be certain you extract all measurment information for the reading. Perhaps the DMM may also have a simi
lar feature. If you do not read all the data, the systems will hang.

"Read Single Point" Keithley 2400 Problems

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