- Optical Spectrum Analyzer
Dear all,
I am encountering troubles relating to controlling optical spectrum
analyzer.. I follow exactly the commands in programming user guide but
it turns out many errors. So, is there anyone here having some
experiences with OSA controller? Could you help me?
Thank all
- Re: XY graph two y labels
Knock of the comments about 'this group is pretty much dead'. This
question was mirrored from forums.ni.com and you should realize that.
You are just posting noise.
- Re: XY graph two y labels
This group is pretty much dead. Try the forums.ni.com
To answer your question, I believe you have to set the
Active YScale first, then you can change the second label.
Property Node/Properties=Active Yscale (ActYScl) change to write
Property Node/Properties=Yscale.NameLbt .Txt, change to write.
- Re: XY graph two y labels
This group is pretty much dead. Try the forums.ni.com
To answer your question, I believe you have to set the
Active YScale first, then you can change the second label.
Property Node/Properties=Active Yscale (ActYScl) change to write
Property Node/Properties=Yscale.NameLbt .Txt, change to write.
- XY graph two y labels
Hi
I am trying to have an XY plot with a y scale on the left and on the
right and want 2 labels for them. I use property nodes to
programmatically set the label by writing to the the variable
Yscale.NameLbl.Text but this changes both labels. Does anyone know if
it is possible to change them independently?
- How to access .NET 4.0 Assemblies in LabVIEW
Hi Newsgroup,
I'm trying to update my LV App that references some .NET Assemblies.
The assemblies have been updated to run with the .NET 4.0 Run Time.
In LabVIEW 8.6 I cannot load such assemblies.
Is there a any way to use .NET 4.0 assemblies with any version of
LabVIEW (2009 would be available)?
Thanks for your help!
- newbie, problem creating exe from vi
Dear all,
I tried creating an "exe" file from a vi. When I build the exe it says
"some resources not found in x.vi->y.vi->z.vi".
How do I troubleshoot this. What is the default directory for all the
LabView dependencies required for exe creation. I tried Project ->
View Dependencies but n clue. What is the general directory and what
- Building an Embedded Device/System? Tell VDC about your experiences for a chance to WIN!
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- Program to pic random files
I have a folder with thousands of pics in it. I need a way to randomly
pic just 1000 and store in another folder..Anyone seen anything like
this?
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- Re: Matrix Adjoint
Hi Hardy,
To have the community read your message you should go to the NI Forums
and post your response: [link]
Regards,
Laura
- Re: API call - get a measurement/value
> was synchronized with this board. Then that broke. It may have been
> restored but maybe only one way from nntp to this board but not
> backwards.
Exactly that is the case. I wasn't aware of this mirroring function
until Laura kindly pointed it out. I guess this functionality should be
restored to work both ways.
- Re: API call - get a measurement/value
Laura,
Thanks a lot for pointing me there - I wasn't aware of the auto-mirroring :)
I managed to get my DLL-call done with the Call Library function, so I
didn't check the newsgroup for replies either, for a while.
So thanks again!
Best Regards,
Lars Uffmann
- Re: Matrix Adjoint
Thanks but transpose matrix has nothing to do with adjoint. The
inverse of a matrix is the adjoint divided by the determinant. The
adjoint is the transpose of the matrix of co-factors.
Hardy
- Re: API call - get a measurement/value
Hi Lars,
Your question was mirrored to the NI Discussion Forums (forums.ni.com)
and a number of replies have been posted in response to your question:
[link]
Thanks,
Laura
- Re: String problem How to delete and replace line
Hi Tom,
Your question was mirrored to the NI Discussion Forums and someone has
provided an answer there: [link]
Thanks,
Laura
- Re: Matrix Adjoint
Hello Hardy,
Your question was mirrored to the NI Discussion Forums and someone has
provided a response there. You can view it here:
[link]
Regards,
Laura
- Matrix Adjoint
I can only find Matrix inverse. Is there an adjoint vi?
Hardy
- String problem How to delete and replace line
Could someone please point me to an example of how to delete
and replace a specific line in a text file? I use several colums that store
settings
and everything works fine except I can't figure out how to delete a specific
line
and replace it. I can keep adding settings but can't delete and replace.
- Re: API call - get a measurement/value
Ok - I need to rephrase: Is this newsgroup dead, when dead means
"extremely low traffic" as in less than 1 post per week avg.? :)
- Re: API call - get a measurement/value
No?
- Re: API call - get a measurement/value
Yes it was. Is this newsgroup dead?
- API call - get a measurement/value
Hey everyone!
I just started having a closer look at LabView (not impressed with the
sloggish performance of my system since I installed the development
environment, but that's different topic).
Anyways - since my googling skills seem to be failing me this time:
I want to use an API call to fetch a measurement value from another
- Problems with two edge separation
I'm trying to do two edge separation, but having some problems.
Specifically, I never get a result, and instead get Error -200474
occurred at DAQmx Read (Counter DBL 1Chan 1Samp).vi:3, suggesting that
the timeout expired.
I'm using a PCI-6229 with a BNC-2120 on LabView 8.0. For testing,
I've connected two switches, one to PFI.9 and one to (what I believe
- Capturing a web page with Labview
Does anyone know of a VI that will snap a web page running in a
browser and convert to a basic gif or jpg image.
- Why is SI Read and LVsound.dll issue still not resloved?
Is there a reason NI continues to not adress and fix issues with
Simltanious sound in and sound out? This bug is present in all versions to
date.
Please don't ask me to post the hundreds of configurations that have been
tried.
You people know of the issue and refuse to fix it. Why? That's all I ask.
- Re: Event structure challenge Please help.
a screenshot would be nice ;)
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- Re: Event structure challenge Please help.
Will try to post code. I have 2 loops. The event is in it's own loop.
Still don't understand why value change is not value change.
Seems labview is quite dumb in this regard. The value is being changed
through AI on one loop passed through local varibale to the event loop.
as I said, When you change value with the mouse I get desired result
- Re: Event structure challenge Please help.
Thanks for the replies. It alomost works except the new problem is
that it only works with the mouse. When triggered by the AI
nothing happens becuase the event structer hangs the loop.
Nothing executes with the AI.
Any ideas?
- Event structure challenge Please help.
I have this bug that is driving me crazy. Spent 2 day's and still no where.
I won't ask why the most simple things are the hardest with labview becuase
that
will just open a can of worms. Anyway, here is what I can't figure out.
I have an ok button that is activated through a AI channel. When high
the button goes on as is should on the front panel. What I need to do
- Re: Rotronic Humidity sensor
See:
[link]
Also:
1) Page 3 of the following implies that they've used the Rotronic with Labview. You might try to contact the authors.
[link]
- Rotronic Humidity sensor
Anybody here with some expierence connecting these sensors via USB to
labview?
Thanks for help
Peter Tate
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I am running the blog [link].
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Good idea read this:
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- great links
great links:
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- Solar Array Simulator
Anyone out there that has used the labview drivers to control the HP/
Agilent E4350 SAS?
- CVI user interface controls integration with wxWidgets
Hello everyone,
I am writing an application to visualize some signals using wxWidgets
and LabWindows CVI to access a NI-DAQ card. Until now I have
visualized the acquired signals using an interface made in CVI and its
controls in an external application.
What I am looking for is a way to integrate the functions and controls
- Re: libdir for Labview runtime server
ok. I solved it already.
I got it to run the self-built runtimeserver eventually by only
writing "TestStandLVRTS" in the textfield for adaptors and not the
whole path.
But I still wonder why the first option to run the runtime server for
7.1.1 which was already there as a choice didn't work...
- libdir for Labview runtime server
Hi
I have created a testprogram, and am now deploying it to another test-
computer.
I use Teststand 4.1 and Labview 7.1.1
I have built the runtime server using my current labview-version,
7.1.1.
But I can't find where this runtime-server has its .ini-file. I need
to change where it looks for special libraries.
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- Re: Tab control in labVIEW 8.2
Perhaps you could explain what functionality you need such that you need a state machine for the tab control? (i.e., what are you trying to do).
If by "Machine", you are describing a piece of hardware, then you could define "Machine 1-6" as objects of type "Machine", and you could maintain a collection of Machine Objects with an array, then as you change the tab control, you could just reference a different Machine object....for example. All of your "Machine" methods would be defined in the "Machine" Class.
- Tab control in labVIEW 8.2
Hey everyone.
I am wondering if anyone has some example code for tabbing control.
The tabbing control I have is 1 tab with the following tabs:
1. Main
2. Machine 1
3. Machine 2
4. Machine 3
5. Machine 4
6. Machine 5
7. Machine 6
Then each machine has a separate tab control underneath
that has 6 tab per machine.
- Re: Windows messaging
This newsgroups is not frequently used.
See:
[link]
- Windows messaging
I am interested to know how to communicate with another program using
Windows messaging from LabVIEW. I did not develop the program with which I
want to communicate. The developer allows other programs to interact with
it using Windows messaging.
I need to post messages to that application and receive messages from that
- Re: While loop takes control of everything, i.e. stop a while loop
Solved.
The while loop was inside an event structure and the event was set so
to lock the front panel before the end of the execution.
Gianluca
- While loop takes control of everything, i.e. stop a while loop
Hi everybody,
I have a problem with a while loop, which I don't manage to stop as it
takes control of everything.
So, the problem is the following.
I wrote a vi to control an Optical Spectrum Analyzer and I need it to
scan a trace every Ta seconds. The scan must start when the user
presses the button "Start datalogging!" and must stop when the user
- Keithley 2700 driver bug?
Hi,
I think there is bug in the Configure Filter.vi (ke2700.llb).
In the string constant "\s%.;:AVER:WIND\s%f\n;" the " \s%."
elements are wrong.
Alexander
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