Problème carte 34901A sur Agilent 34970A

Bonjour,
J'ai un problème sur l'acquisition en impédance de mes cartes 34901A des centrales d'acquisition Agilent 34970A. Lorsque j'utilise mon programme labview, la centrale me retourne une valeur d'impédance fausse. (pour une résistance connue 351Ohm, la centrale me renvoie 351 +/- 40Ohm).
Ce problème est récurrent et cela arrive sur plusieurs de mes systèmes utilisant les cartes 34901A.
Quelqu'un a t'il déjà recontré ce problème la?
Merci,

Bonjour Tomaks,
Il semble en effet d'après votre retour que le problème soit matériel et non pas logiciel si celui-ci n'apparaît qu'avec certains systèmes.
Peut-être serait-il plus bénéfique de vous tourner Agilent pour vérifier ces points et vous assurer qu'il n'y aurait pas de problèmes au niveau de vos systèmes.
Par ailleurs, si en effet un autre utilisateur venait à avoir rencontré ce problème, son expérience pourrait être qu'appréciable.
De mon côté, je ne peux malheureusement apporter plus d'aide car il ne s'agit pas de nos systèmes.
Cordialement,
Antonin G. Associated LabVIEW Developper
National Instruments France
#adMrkt{text-align: center;font-size:11px; font-weight: bold;} #adMrkt a {text-decoration: none;} #adMrkt a:hover{font-size: 9px;} #adMrkt a span{display: none;} #adMrkt a:hover span{display: block;}
Communauté francophone des développeurs LabVIEW et des enseignants en STI2D
Si vous souhaitez partage...

Similar Messages

How do I set the NPLC on a Agilent 34970A then keep it set when I do a Temp measurement on the channels

I have an Agilent 34970A DAQ that I am trying to set the NPLC to 10 and keep it set when I issue a temp measurement command to the channels. Right now I can issue the NPLC 10 command to set the channels and it works but when I send the measure channels command the NPLC gets set back to 1. What am I missing to keep this from happening?
Thanks in advance for your help.
Charles

JimmyJin wrote:
Hi Charles,
Was your problem solved? I have run into a very similar situation but instead of HP 34970A, I have a HP 3852A and I want to set NPLC small so that it speeds up the data acqusition.
I tried Measurement and Automation Explorer and use "communicate with Instrument" under GPIB folder and issue the command "NPLC 0" before running labview. But I did not see any change when I run my LabVIEW again. Since this command was working under VEE Pro, I am guessing the setting for NPLC was somehow reset. I am not sure why.
I will try use "GPIB write" vi to see if it does anything but I'm not sure if I should set NPLC value everytime. Please let me know what you think if by any chance you see this message.
Thanks,
Jin
I don't think you can set the NPLC to 0, the minimum value is 0.02. Maybe VEE automatically set it to the minimum value. Instead use NPLC MIN.
Now if you use the MEAS? command to read the value the instrument will use the default value for the type of measurement if you don't specify the resolution (not the integration time, if you look at the 34970A documentation you will see how they relate) which is probably set to NPLC 1.
If you want to speed up things you may look at the ROUT: SCAN and READ? commands to define a scan list.
Ben64

Trying to update channels in real time while controlling Agilent 34970a

Hello all,
I've gotten such valuable help on these forums and I am hoping that someone will be able to point me in the right direction with this issue. I'm still pretty new to LabVIEW so please bear with me.
I am working with the LabVIEW driver for the Agilent 34970A connected over a GPIB-ENET 100/1000. The device was detected and works just fine. The reason I am writing today is that I am trying to update the channel list in real time. Currently I need to stop the whole process in order to edit the channel list but due to the nature of the tests we will be performing it is important that I can add more channels as I go without interrupting the testing going on.
I've searched the forums and tried modifying the channel string control to "Update value while typing," and "Limit to single line." The motivation behind the latter change was so that I could modify the channel list and use the ENTER key to execute. I've also tried creating a while loop with shift registers but the construction ws so clumsy that it did not work either.
I am pretty sure that the modification should occur right at the string control but cannot be certain since the pint is for it to reinitialize what channels to scan and that occurs further down in the VI. I've attached the VI I am working with; it is an only slightly modified version of the driver's Advanced Scan Example.
Thank you all in advance,
Yusif
Solved!
Go to Solution.
Attachments:
HP34970A Advanced Scan Example_YN_5-16a-12.vi ‏77 KB

You may have added a shift register, but you're not actually comparing anything. You need to compare the value of the control to the value of the data coming from the shift register to see if it changed. If so, change the scan list.
If you need to have a delay after changing the scan list, then you should add the delay inside the case structure that calls the VI to reconfigure the scan list. You can use the Time Delay VI to cause the delay to occur after configuring the scan by using the error wires to force execution order.
P.S. Your naming scheme for VIs implies that you are probably not using a source code control system. If so, you would be well served in taking the time to learn about source code controls systems and installing one. It's very easy, and there have been numerous threads in the LabVIEW forum on recommendations of source code control systems.
Attachments:
changed.png ‏15 KB

Errors 410 and 420 with Agilent 34970A

Hello, all. I'm helping a colleague with an application measuring ten channels each of temperature, frequency, and current using an Agilent 34970A DAQ switch (GPIB) and LabVIEW 7. We keep getting errors 410 and 420 from the switch. When the error occurs, then the switch doesn't report all 30 pieces of data. I'm looking for ways to a) clear the error; and b) prevent the errors.
Thanks in advance,
-Dan A

According to the manual, 410 is Query Interupted and 420 is Query Unterminated. The first can happen when you send a query but there is still data in the output buffer. If you've requested a certain number of bytes during a read, you probably need to increase that number in order to sure that all data is retrieved. A Device clear command will clear the error. Query Unterminated happens when the instrument is addressed to talk but there is no command pending that will place data in the buffer. The example in the manual cites sending a CONFIG command which doesn't generate data and then doing a read.
Are you using the drivr from NI or have you written your own?

Agilent 34970A External Reference Configuration via Labview 8.2

Hello
I am trying to scan up to 12 channels with the Agilent 34970A. My goal is to measure the temperature using channel 101 as the external reference using 4-wire RTD whereas all the other channels are supposed to use Thermocouple (k-Type). I know that the Agilent is able to do so, because you can configure it on the manual display. My problem is that every time I have configured Channel 101 ( CONF: TEMP FRTD,85, (@101)) and then the other Channels 102:1XX ( CONF: TEMP TC,K, (@102:1XX)) it seems that the configurations for Channel 101 are lost. I tried everything I could come up with to seperate the inputs, but nothing usable comes up. Any Advice?
Thanks Neja

There are two different drivers sets for the 34970, but they're not from Agilent. They're available from the NI Instrument Driver Network. Since you said you had it working under 7.1 you're probably using the older "hp34970" drivers. The error codes you indicated are -138, which is "Suffix not allowed", and -113, which is "Undefined header". Both of these basically mean a syntax error, which is likely incorrect code with the drivers. There are numerous configuration VIs. Which one are you using, and how are you calling it? Can you use the updated project-style drivers available from the link I posted?
I'm not quite sure I understand what you're saying with the COM ports. You said you get nothing when using COM1 or COM2. How many devices do you have connected to your COM ports? What communication parameters (baud rate) are you setting?
It would probably be worthwhile to see what happens if you try to talk to instrument via MAX to see if this is a communication problem or a LabVIEW problem. With the LabVIEW drivers you can see what command is being sent out to the instrument by simply putting a probe on the string that's being fed to the VISA Write. Then, you can enter the same command in MAX (as well as confirming the command from the user manual) to see what happens.

Je suis donc obliger de fermer et redémarrer le logiciel ce qui n est pas pratique pour un jeu d argent j ai donc desintaller mon Pc réinstaller avec la dernière version d adobe air mais le problème persiste le problème et identique sur androïde avec télé

Bonjour j ai un problème avec mon Pc un asus n750jk windows8.1 16g de ram carte graphique nvidia gtx850M lorsque je joue a winamax logiciel de poker qui fonctionne Grace à Adobe air au bout de quelques minutes l écran ce fige je suis donc obliger de fermer et redémarrer le logiciel ce qui n est pas pratique pour un jeu d argent j ai donc desintaller mon Pc réinstaller avec la dernière version d adobe air mais le problème persiste le problème et identique sur androïde avec téléphone s4 merci de m aider j en peu plus

Merci jmlevy de te pencher sur mon problème.
Voilà une photo de mon panneau page :
Puis une autre d'une page qui ne ressemble plus à rien après changement de pagination:
Voici une ancienne page 28 devenue page 29. Fantastique, non ?
On peut voir :
Que mes blocs sont décalés par rapport à la maquette
que le bloc noir de la page 28 déborde sur la page 29.
Que mon bloc de texte est perturbé par l'ajout sous-jacent d'une page de maquette
que ma pagination a conservé les attributs d'une page pair (numérotation à gauche) alors qu'elle est passée impaire.
J'aurai considéré comme normal que mon ancienne p.28 se soit déplacée en page impaire avec le bloc texte bien placé ET avec les attributs de page (liés au gabarit, tels que pagination, filets, bas de page roulants) modifiés automatiquement. Or il n'en est rien.
Tu me demandais des éclaircissements par rapport à "J'importe mes gabarits dans le document au fur et à mesure de la construction du livre et je libère les éléments de gabarit afin de pouvoir couler le texte et disposer l'icono. Lorsque c'est fait, je ne retourne pas dans le mode page d'InDesign. J'attaque la page suivante." Voici, plus en détails ce que je fais au moment où je monte une nouvelle page. Mes gabarits ont été préparé en amont.
J'ajoute une page au document (ex : une page de texte)
je lui confère le gabarit qui va avec (ex : C-présentation ch1, cf plus haut)
je libère les éléments de gabarits pour pouvoir couler le texte et disposer les images.
quand ma page est finie je recommence l'étape 1.
Est-ce que c'est à l'étape 3 que je me plante ?
Est-ce qu'il y aurait d'autres explications à ce malheureux schmilblick ?
Merci d'avance.

How do you setup a fixed reference in LabView when gathering temperature data with Agilent 34970A

Hi I am using Agilent 34970A to gather a lot of thermocouple data. Until now I was using it soley with the internal reference. I was hoping to switch and set this to a fixed reference. In Lab View, how do I select which thermocouple is the fixed reference thermocouple?

19rachael91 wrote:
Hi I am using Agilent 34970A to gather a lot of thermocouple data. Until now I was using it soley with the internal reference. I was hoping to switch and set this to a fixed reference. In Lab View, how do I select which thermocouple is the fixed reference thermocouple?
Could you show us some code? Your question is a bit open-ended and we could considerably narrow down the choices based on what we see.
Bill
(Mid-Level minion.)
My support system ensures that I don't look totally incompetent.
Proud to say that I've progressed beyond knowing just enough to be dangerous. I now know enough to know that I have no clue about anything at all.

Problème exportation pdf sur Indesign

Bonjour,
J'ai un problème avec Indesign. Lorsque je veux exporter mon pdf il me dit "Impossible d'exporter le pdf" et n'ai pas d'autres explications.
Je ne comprends pas car j'ai déjà exporter ce pdf une première fois sans aucuns problèmes.
Les liens sont tous bons, les photos ne sont pas spécialement lourdes,...
Merci de votre aide.

Bonjour et merci !
Malheureusement je ne suis pas assez douée en anglais pour comprendre des explications sur Indesign.
Pas de message d’erreur sur le contrôle en amont et je n’utilise pas de variables….
Je ne sais pas si je peux apporter des explications en plus, c’est clairement incompréhensible ! Et Indesign ne précise pas du tout pourquoi je ne peux pas exporter….
Merci.
Le 13 janv. 2015 à 09:19, vinny38 <[email protected]> a écrit :
Problème exportation pdf sur Indesign
created by vinny38 in InDesign - View the full discussion
Salut,
on manque un peu d'info...
dis moi quand meme si tu as des messages d'erreur lors du contrôle en amont.
Egalement, merci de préciser si tu utilises des variables dans ton doc (une variable qui appelle un style non appliqué peut générer ce problème.... parmi tant d'autres raisons)
Si tu parles un peu anglais, je te conseille de reformuler ta question en anglais, tu auras beaucoup plus de personnes aptes à t'aider
a+
If the reply above answers your question, please take a moment to mark this answer as correct by visiting: https://forums.adobe.com/message/7090420#7090420 and clicking ‘Correct’ below the answer
Replies to this message go to everyone subscribed to this thread, not directly to the person who posted the message. To post a reply, either reply to this email or visit the message page:
Please note that the Adobe Forums do not accept email attachments. If you want to embed an image in your message please visit the thread in the forum and click the camera icon: https://forums.adobe.com/message/7090420#7090420
To unsubscribe from this thread, please visit the message page at , click "Following" at the top right, & "Stop Following"
Start a new discussion in InDesign by email or at Adobe Community
For more information about maintaining your forum email notifications please go to https://forums.adobe.com/thread/1516624.

LabView - Agilent 34970A initializer error

i am using LabView 6i connect with GPIB-PCII (ISA) to Agilent 34970A
i downloaded VISA software and use it to control my device. However,
the initializer for the 34970A sent an error message "old visa occur
with my device". LabView can still run, but didn't trigger the device
to start taking measurement.
the error message number is 107380743
i would be appricated if anyone can help on this issue

Here's a copy of my modifed VI.
Attachments:
HP34970A_Initialize.vi ‏113 KB

Bonjour, j'ai un Imac et j'ai installé une partition windows dessus. Le problème est que sur osx, l'ordinateur détecte bien mon wifi ou mon cable ethernet, or sur la partition windows je n'arrive pas à avoir accès à internet. Vous avez la solution?

Bonjour, j'ai un Imac et j'ai installé une partition windows dessus. Le problème est que sur osx, l'ordinateur détecte bien mon wifi ou mon cable ethernet, or sur la partition windows je n'arrive pas à avoir accès à internet. Vous avez la solution?

Bonjour Laurent,
premièrement vous pouvez utiliser: http://helpx.adobe.com/fr/x-productkb/global/find-serial-number.html et éventuellement là
http://helpx.adobe.com/fr/x-productkb/global/find-serial-number.html#a dobeproductdownload
Aussi possible également de contacter Adobe à la page suivante:
http://helpx.adobe.com/fr/support.html > Aide de photoshop > Choisissez un sujet ... > ... (J'avais choisi Utilisation ...) > Je encore besoin d'aide ... > Chat
Veuillez utiliser le chat (si un agent est disponible), j'ai eu les meilleures expériences.
Peut-être que vous avez obtenu un "numéro de série" d'Amazon (ou similaire). Ce n'est pas un numéro de série, seul un code avec lequel vous pouvez demander un numéro de série à partir d'Adobe. Ici, vous devez passer par "Adobe Store", et recherchez le bouton "Serial Demande de numéro". Remplissez le formulaire et, après un certain temps, vous obtiendrez un numéro de série "réel".
Il pourrait être nécessaire d'activer/désactiver s'il vous plaît jeter un oeil là:
http://helpx.adobe.com/fr/x-productkb/policy-pricing/activation-deactivation-products.html
Hans-Günter
P.S.
Vous pouvez également utiliser le Forum Francophone: Forums en français

Analog close channel for agilent 34970A

Hello,
I am a new user of labview.I need some help programming my Agilent 34970A.
I can initiate communication with my instrument and take data,but I want to close a particular channel and read channel several times and average.
I was looking for a VI something like "Analog close channel" using which I can close a particular channel,read it several times,average the data and then go to the next channel.
Could you please help me in this issue,eagerly waiting for a reply.
Thanks,
Harinadh.

First you need to convert your string to a binary datatype and calculate as needed.
Ton
Message Edited by TCPlomp on 11-12-2009 07:40 AM
Free Code Capture Tool! Version 2.1.3 with comments, web-upload, back-save and snippets!
Nederlandse LabVIEW user groep www.lvug.nl
My LabVIEW Ideas
LabVIEW, programming like it should be!
Attachments:
reads 10 samples by closing a channel_BD.png ‏10 KB

Communicating with agilent 34970A using labview.

Hi,
I'm using labview to control agilent 34970A DAQ. I was using VEE and
now I'm planning to use Labview. I downloaded the necassary drivers. I
want to know how i can get started. i.e. generating sub vi's like
initialize.vi etc.
-Satya

When you do what Dennis has suggested you'll also find that there will be one or more high level examples included with the Instrument Driver that use the lower level functions. The document on how to write LabVIEW Instrument drivers is pretty useful in getting an overview:
http://zone.ni.com/devzone/devzoneweb.nsf/Opendoc?openagent&D318B79F473D3C838625680A005AC409
Regards,
Kamran

Comment desimlocker ma carte sim sur i phone 3gs

comment desimlocker ma carte sim sur i phone 3 gs

Only the carrier that the phone is locked to can unlock the phone.
contact that phone carrier.

Bonjour, je vien de changer de compte itune pour mon ipad, et jai changer de carte bancaire sur se meme compte et quand je veu achter une application il me dit veuillez contacter l'assistance pour finalizer la transaction keske je doi faire?

bonjour, je vien de changer de compte itune pour mon ipad, et jai changer de carte bancaire sur se meme compte et quand je veu achter une application il me dit veuillez contacter l'assistance pour finalizer la transaction keske je doi faire?

Compatability with Agilent 34970a Model

I need to check if the Agilent 34970a Data Acquisition/Switch Unit is compatible with DASYLab. I know it functions with Labview, but the company I am performing a project for prefers DASYLab. The unit uses the VISA language. Thank you for your help.
Josh

How are you connecting it?
It's not quite as easy as the LabVIEW VISA drivers, but DASYLab has both GPIB and RS232 inputs which can be configured with the appropriate SCPI commands.
- cj
Measurement Computing (MCC) has free technical support. Visit www.mccdaq.com and click on the "Support" tab for all support options, including DASYLab.

Problème carte 34901A sur Agilent 34970A

Similar Messages

Maybe you are looking for