Labview active x

How to resolve this issue , i am getting this issue often.PLease let me know this is urgent .
thanks in advance for the support

Sorry, but your sentences are hard to understand.
Do i understand correctly, that this happens only for specific code modules? Did you try a masscompile on these modules in LV?
If that error occurs, does it affect ALL code modules?
Norbert
CEO: What exactly is stopping us from doing this?
Expert: Geometry
Marketing Manager: Just ignore it.

Similar Messages

Accessing recordset field values using labview Active X

dear friends,
i have opened recordset using labview active X Refenum opening dbengine,workspace ,opendatabase,openrecordset
i need to access the field value from the record
but labview doesnot show any propery or methods that r related to fields ,except count.
in short i am looking for a code statemant in labview which is equivalent to VB
Recordset.Fields("Name").Value or Recordset.Fields(Index).Value
can anybody help
thanks in advance
regards
shridhar joshi

try something like this .
"shridharjosh" wrote in message
news:[email protected]..
> dear Ben Schulte
> i am using MS Access Database and i opened
> Acitve X class and necessary database connection parameters
>
> thing is Fields is a collection in VB and
> has a two default properties 1-Count 2-Index
>
> I am Able to get count property but un succesfull in accessing index
> this is important inorder to acces the value of a individual field in
> a recordset
> i am attaching data vi with this please ahve a look at it
>
> thanks in advance
[Attachment Fields.PDF, see below]
Attachments:
Fields.PDF ‏175 KB

Labview Active X not identified

Many time Labview Active X is not identified by teststand.Need to open again Teststand ,this is very much frustrating.is ther any solution for this

Please describe the problem you are having in more detail and, if possible, the steps necessary to reproduce it.
-Doug

Convert VB code to LabVIEW Active X

Hi guys,
I have a question that has been bugging me for a couple of weeks now. For some reason I can't seem to understand how LabVIEW handles Active X calls. Here is my example. Suppose I have the following VBA code:
Set Devices = ZiApplication.Devices
Set FocusDevice = Devices.Open("Focus")
FocusDevice.Initialize
FocusDevice.UpdateParameters
Would the corresponding LabVIEW be something like the following
I guess I have just been confused as to how LabVIEW handles calls like FocusDevice.Initialize, since FocusDevice was a variable of type Devices.
Cheers,
Shivels
Solved!
Go to Solution.

What you put together appears valid. In the VB code the "Set" operation instantiates the class, returning an object of that class. This is the same as the wire that comes out of the Property Node that is accessing the "Devices" property for the IZiApplication class.

How to transfer labview activation on another computer

We have purchased Labview 8.5 in EC Department. It is running well but since the PC has to be formatted so we need to transfer the activated Labview on another system. How to transfer the activation code to other system?. or how to acquire new activation code based on Serial ID and Computer ID? Vendor is not responding back.
Solved!
Go to Solution.

You can activate the product online, if you got internet connection.
Follow the link and key in the fields as shown in the examples attached below, you can find your computer-ID by opening the NI-License manager and just press F7.
http://ni.com/activate
Message Edited by Parny on 03-02-2009 10:13 PM
Attachments:
screen1.JPG ‏18 KB
screen2.JPG ‏108 KB

Use VB with labview active X

i have the LabVIEW 7 now. Can i use VB to import the graph from labview?If can not then what should i do in order to use the labview graph in VB?

You can use VB to access the data from your LabVIEW VI but you can't host the LV graph control in your VB application. If you're looking for a native graph control for VB, check out ni.com/mstudio. There's UI controls there that include graphs as well as many of the other UI controls you find in LabVIEW. There are version for VB 6 as well as .NET.

Using Teststand, need to know how to select a different active x servers in the labview adapter configuration...

Hi,
When I open TestStand using a seq. file, I can see all the VI's that are called, but when I try to open them for editing, I see this message;
"The labview adapter is currently configured to run tests in an environment that does not support editing VI's. In order to edit or create VI's, you must select a different labview Active X server in the lab view adapter environment"
So, I clicked on all the options allowed to me in the "Module Adapter" (is this the same as the drop down menu (by default)"Labview Standard Prototype adapters") but I was still unable to open the VI�s for editing�
Anyone know how or why?

Hi,
You will find the option under Configure | Adapters...then select the labview and press the configure button.
So if you are not able to do this then it could be because your system doesn't have the LabVIEW development system or you do not have adminstrator rights (Teststand login) or it could be that your VI's have been saved without diagrams.
What are you logged in as?
Do you know if you have labVIEW?
Regards
Ray Farmer

Calling LabView ActiveX Server from TCL?

Does anyone have experience calling a LabView ActiveX server vi from
TCL? I created a simple VI with one control (labeled "A") and one
indicator (labeled "B") and a +1 adder between them. I can load and
open the VI from TCL:
package require tcom
set lv [::tcom::ref createobject "LabView.Application"]
set viPath "D:\\National Instruments\\LabView\\Activity\\a.vi"
set vi [$lv GetVIReference $viPath]
$vi FPWinOpen True
But when I try to send in data:
$vi -namedarg Call A 1
I get the error message "unknown parameter A".
I have also attempted to duplicate the "ActiveX Server" example
from the LabView help file, calling "Frequency Response.vi". This
approach encounters the same error message:
% package require t
com
3.0
% set lv [::tcom::ref createobject "LabView.Application"]
::tcom::handle0x013202F4
% set viPath "D:\\National
Instruments\\LabView\\examples\\apps\\freqresp.llb\\frequency
Response.vi"
D:\National Instruments\LabView\examples\apps\freqresp.llb\frequency
Response.vi
% set vi [$lv GetVIReference $viPath]
::tcom::handle0x01335AE8
% $vi FPWinOpen True
% $vi -namedarg Call Amplitude 10
unknown parameter Amplitude
If anyone can point me in the right direction, or give me an
example of how to do this I would greatly appreciate it.
TIA.
Leslie

In article ,
Leslie Brooks wrote:
>"Bruce Hartweg" wrote in message
>news:...
>> "Chin Huang" wrote in message
>news:[email protected]...
>> >
>> > I don't use LabView, but from the Visual Basic example I saw, it seems
>> > the Call method takes two arguments. The first is an array of parameter
>> > names and the second is an array of parameter values. Try to send in
>> > data with the Tcl command
>> >
>> > $vi Call [list A] [list 1]
>>
>> I'm unable to help the original question (don't know LAbView or VB stuff) but
>> just want to point out that [list A] is equal to A and [list 1] is the
>same as 1.
>>
>> Bruce
>
> I know what is supposed to be passed to the 'Call' method. Doing
>this:
>
>set inst [::tcom::info interface $vi]
>$inst methods
>
> produces (among other things):
>
>{1015 VOID Call {{{in out} {VARIANT *} paramNames} {{in out} {VARIANT
>*} paramVals}}}
>
> So the 'Call' method is expecting two parameters, both pointers
>to variants. TCOM appears to be passing the correct parameter type
>because the TCOM documentation says that a TCL List maps to a
>one-dimensional array of VT_VARIANT. However, the results are
>INvariant (bad pun intended):
>
>% $vi -namedarg Call Amplitude 10
>unknown parameter Amplitude
>% $vi -namedarg Call [list Amplitude] [list 10]
>unknown parameter Amplitude
>% $vi -namedarg Call [list Amplitude] [list [::tcom::na]]
>unknown parameter Amplitude
>% set i 5
>5
>% $vi -namedarg Call [list Amplitude] {incr i}
>unknown parameter Amplitude
>% $vi -namedarg Call [list Amplitude] [list [incr i]]
>unknown parameter Amplitude
>% $vi -namedarg Call Amplitude [incr i]
>unknown parameter Amplitude
>
> Who can help me with this? Who is the LabView Guru?
Try invoking the Call method without the -namedarg option. The
-namedarg option doesn't work the way you seem to think it works. The
-namedarg option provides a way to specify arguments named from the
method's parameter specification. For example, you discovered that the
Call method take two parameters named "paramNames" and "paramVals".
Tcom returns the error "unknown parameter Amplitude" because "Amplitude"
doesn't match either parameter name.

I lost my labview CD and changed computer long time ago

I lost my labview CD and changed computer long time ago. I bought labview student edition 8.6 years ago and I lost both the CD and the computer. Now I want to use the software again but I cant find were to download it or how to activate it. I have in my e-mail the activation codes but they dont seem to work. what can I do? thanks for your time

Hello Darent,
The activation codes are specific to each computer, so if you changed your PC, you need to generate new activation codes or activate your software using the serial number.
You can register your serial number on the next page, so you can download versions of LabVIEW activated with that serial number.
My Products:
http://www.ni.com/myni/products/en/
Let me know if you have further doubts, best regards.
David P.
National Instruments
Applications Engineer
www.ni.com/soporte

Student Edition LabVIEW 6i Book and CD

Chapter 2, section 2.2 asks to open Temperature System Demo.vi. When I open it I get a message that the Digital Thermometer.vi is missing. Where can I get this vi so I can continue the chapter

You can find this VI in LabVIEW\activity\ cataloge
or easier right click on missing VI, choose Replace option and Digital Thermometer.vi should be in Tutorial palette.

Do i have to activate each install through vlm

This is what I did
* I installed NI VLM 2.0 on our license server
* i created several network installs (for LV 80, CVI 80)
* Checked everything was working fine, and it was
* I installed networkinstallversions of LV80 and CVI 80 on workstation A
*It registered fine on our license server and it activated nice through NI
*Then I captured this situation using HP's Rapid Install
*Rapid Install made a huge (1,4 GB) install file
Now,
When I install this file on Workstation B the following things happens:
* On the programm startup (LV or CVI) I am asked once to activate the product, though it was already activated in the first place, before capturing using Rapid Install.
* There is no request on the NI VLM 2.0 screen on the license server.
After activation all works well.
I need to distribute this software to almost every computer in our school. My questions are:
*What can I do to stop each distribution from activating
* should I be worried if the computer, running LV or CVI does NOT show up on the NI VLM 2.0 screen?
thanx, i continue testing, so there will be more questions in a few days (grin).
Ruud Habets
Solved!
Go to Solution.

I've not used the license server, but here's some general info on how the LabVIEW activation process works.
I know that the license file that is generated after you activate it is
kept in a directory outside of the main LabVIEW directory and is not
part of the LabVIEW installation.
(...National Instruments\Shared\License Manager\Licenses)
This is probably why your Rapid Install didn't work as you expected.
Another reason is each license file is tied to a specific machine
through a machine ID that is generated for each machine. So a license
file for one machine will not work on others, even if you have a campus
wide license agreement.
You'd probably be better off calling into NI support to get his worked out.
Good luck.
Ed
Ed Dickens - Certified LabVIEW Architect - DISTek Integration, Inc. - NI Certified Alliance Partner
Using the Abort button to stop your VI is like using a tree to stop your car. It works, but there may be consequences.

Problem creating inputs, outputs and text in Scilab Script Block

I have recently installed the Labview to Scilab Gateway. I am running Labview 11.0 and Scilab 5.3.3. The example files run properly, However, when I try to define any inputs, or outputs, there is no option to add the ports. The block also ignores any text I type in it or copy to it. I have been trying this on a blank vi.
Solved!
Go to Solution.

Hi Ronny,
I have a few more questions to help us debug this issue. You said you tried the same right-click procedure to create inputs and outputs on a normal script block and it worked as expected. What specifically do you mean by a "normal script block"?
How did you drop the empty Scilab script node on a blank VI? Did you drop it from a palette or paste it from another VI?
Can you post an image of your Help >> About LabVIEW screen (feel free to obscure your name, company, and license number)? If not, can you provide the LabVIEW version number specified from that screen? There have been a few patches to LabVIEW 2011 and it will help us to reproduce the issue if we know exactly which version you have. Also on that screen, do you have LabVIEW Base, Full, or Professional (or maybe an Evaluation or Student edition)? The Scilab script node will not work in LabVIEW Base and the right-click menu will look as you describe. You can verify your LabVIEW activation in the NI License Manager.
Do you have any other versions of LabVIEW installed on your computer? Is LabVIEW 2011 the most recent LabVIEW you installed? How about previous versions of Scilab? Do any previous versions remain or did you remove a previous version of Scilab AFTER installing Scilab 5.3.3?
Grant M.
Senior Software Engineer | LabVIEW Tablets | National Instruments

Générer des impulsions

Bonjour,
Mon problème n'est surement pas très compliqué mais je n'y arrive pas soit par manque de connaissance sur LabVIEW soit parce que la version que j'ai ne me le permet pas.
Je souhaiterais générer un train d'impulsions (2ou3 impulsions seulement), ce signal sert à piloter une petite électrovanne. Il faut donc pouvoir maitriser la durée de l'impulsion et le temps entre les impulsions.
Je dispose d'une carte NI9263 et de LabVIEW 9.0
Enfait nous souhaitons réaliser l'équivalent de l'arduino Photoduino (petit boitier pilotant une electrovanne et un appareil photo + flash). Au lieu de prendre une photo nous souhaitons prendre une vidéo à l'aide d'une caméra Olympus. Nous pensions nous servir du déclencheur de la caméra pour piloter à la fois la caméra et l'electrovanne.
Le declencheur agit comme un simple interrupteur (le signal passe de 5V à 0V lorsque on appuis). Actuellement je récupere ce signal sur LabVIEW, et lorsque je detecte un front decendant, cela creé un signal "Carré" que j'envoi sur l'electrovanne (en passant par un transistor afin d'avoir l'ampérage demandé).
Mais nous avons 2 problèmes notable :
Le 1er est qu'il y à un retard non constant et non négligeable entre le début de la vidéo et la première goutte qui sort de l'EV (de 90ms à 350ms..). Cela me parrait beaucoup, peu etre que cela vient d'une erreur de ma part sur le VI (fréquence d'échantillonage, mauvaise optimisaion du VI ?)
Pour réduire ce retard nous pensions piloter la caméra directement à partir de LabVIEW : LabVIEW activerait un relais (remplaçant le déclencheur) et en parallele LabVIEW générerait le signal pour l'electrovanne. Ce qui m'intrigue c'est que le retard ne soit pas constant, cela me laisse penser que le problème vien du VI en lui même et qu'il serait possible de réduire cette durée. L'objectif étant qu'elle soit minimale OU que le retard soit constant.
Le second problème, la génération d'un signal carré n'est pas satisfaisant pour observer des collisions entre gouttes. Il serait préférable de générer un train de 2 ou 3 impulsions où l'on peut choisir la durée de l'impulsion mais surtout le temps entre les impulsions. Sur LabVIEW je n'arrive pas à trouver la palette qui permet cela..
Auriez vous quelque pistes svp?
Si vous avez besoin de renseignement supplémentaires, n'hésitez pas !
Cordialement,
Alexandre.

Merci pour ces informations.
Je n'ai pas réussi à faire fonctionner le VI Gen Dig Pulse 8.5, lorsque je clique sur "Counter" cela ne me propose aucune voie. Si j'ai bien compris il faut une sortie "Compteur" et la carte que j'utilise(NI9263) ne possède que des sorties analogiques.
Ne sachant pas faire les impulsions, j'ai contourné le problème en générant plusieurs tableaux qui au final me permettent de créer l'équivalent de 2 impulsions, mais sa ne fonctionne pas comme je voudrais.. Je vous joint le VI en piece jointe : "EVolympus.vi". Idéalement les impulsions sont de l'ordre de 10ms et espacé de 90ms.
Le VI Gen Dig Pulse donnerait-il de meilleur resultat ?
Je peux avoir à ma disposition (pour faire des essai) un boitier NI USB6343 (16inputs,16bit, 500kS/s, X series Multifonction DAQ).
En parallele je travaille sur un stroboscope à LED piloté par Labview. Nous souhaiterions avoir 5 panneaux de LED, mais nous ne disposons que de 4 sorties analogique (NI9263). Nous avons couplé 2 panneaux sur la sortie ao3 mais ils ne fonctionnent pas. Problème de masse?
Le signal Labview est envoyé sur la base d'un transistor.
Je vous joint le VI ainsi qu'un schéma du cablâge.
Cordialement,
Alexandre.
Pièces jointes :
electric-schema.png ‏12 KB
Stroboscope.vi ‏176 KB
EVolympus.vi ‏98 KB

How can a PowerPoint presentation be shown inside the front panel of a given application ?

I´m developing a application and I thought it would be a great idea if I could somehow show a PowerPoint presentation inside its front panel. Can it be done using LabVIEW active x vis or can´t it be done at all ?
Thanks in advance !!

Like I said, I tried that option (and even got it work somehow, by connecting nodes from other places and using type casts), but I don't think it can manage that in a real app.
After thinking about this some more, I've come to an unlikable conclusion - it's possible that there is no AX control for PP. Not for animation, anyway. If I remember correctly, when you open a PP presentation in Internet Explorer, you see the slides, but not the animation. If an AX control would exist, I'm sure IE would use it, which is why I think there probably isn't one.
You can get a presentation into an AX container very easily by choosing the third option (open from file). Then, if you select a PP presentation, it will open in the container. However, if I remember correctly, you have no properties and methods to control it, and I don't think it will show the animation, so it's a bit useless.
Maybe someone does know of a way...
Try to take over the world!

How do I turn off background ni file activity when not using Labview? files such as nimxs.exe, nipalsm.exe, nipalsm.exe, nisvcloc.exe, nicitdl5.exe

How do I turn off background ni file activity when not using Labview? I use labview rarely, and I also use my computer for demanding multimedia applications, including multitrack digital audio recording. I need to reduce as much background activity as possible, and taking a look with task manager I see files such as nimxs.exe, nipalsm.exe, nipalsm.exe, nisvcloc.exe, and nicitdl5.exe running even when I haven't used Labview (8 I believe). These files run even after I right click the NI icon on the lower right and turn off the application. I would like the computer to boot up without these files, and for the necessary files to be activated only when I start the program.
Can this be done or do I have to remove labview from the system to improve performance?
Thanks

Hello, those processes are part of running NI services that start when Windows boots. These processes serve varied purposes and stopping them can have undefined and unknown consiquences for your NI products. These products run at "normal" priority meaning that they should be preempted by any process running at a higher priority which I would expect your other application to be doing given their time sensitivity. That being said, in Windows XP (I can't speak for other OSes), you can lower their priorities even greater through task manager (right click the process»set priority) to further remove them from contention for resources. If you want to prevent them from running you can set the service startup type to "manual" in Control Panel»Administrative Tools»Services. Right click the process go to Properties and Under the General tab choose Startup Type»Manual. This will start up the processes only when something directly starts it up. LabVIEW will start these processes up as it attempts to use them. When you shut down LabVIEW you will need to manually shut down these processes through task manager. Again, doing this can cause problems with your NI products on your system and it is not advised.
Travis M
LabVIEW R&D
National Instruments

Labview active x

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