- 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
- Costa Rica’s Real Estate
I am running the blog [link].
I have put there Costa Rica’s Real Estate Development Climate. I put
here for
your information.
Currently, in the Central and South Pacific regions of Costa Rica,
private development has funded three marinas and a dozen major coastal
developments worth nearly $2 Billion. Marina Pez Vela in Quepos will
- Good idea read this
Good idea read this:
[link]
[link]
[link]
- great links
great links:
[link]
[link]
[link]
- 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
- Features Labview 8.5 + NI 232 series usb
Hi, I'm installing labview 8.5 and I use it with a NI USB 232 series in
order to control the movement of an electric motor and the pressure to
acquire the whole of a cylinder. what features need to install in
addition to those features by default? Unfortunately I dont' install all
features cause of space on my hd.
- LabVIEW Rookie-Help Needed
Hi to all,
I am new to LabVIEW and am trying to build a QPSK modulator and I am
having problem with
1)creating a binary data stream
2) creating a demulitplexer to output dibits to the carrier signal
3) Creating a constellation diagram
Hope someone from this group can assist me in the above 3 items.
- 3d object control
Hello,
My application is to import 3D VRML file in LV 8.5 I tried to load
a .wrl file using load vrml function but i could not see anything in
picture control.3d file which i was trying to load is of size 15 MB.
- Any old AT-GPIB drivers out there?
I'm trying to resurrect a GPIB setup that hasn't been used in a while and it
has the old original NI AT-GPIB board (not the AT-GPIB/TNT or TNT+) and NI
hasn't got any drivers for it. The version of LabView on hand, v5.1.1 has
no drivers for that board, but, my late colleague apparently had an upgrade
- Any old AT-GPIB drivers out there?
I'm trying to resurrect a GPIB setup that hasn't been used in a while and it
has the old original NI AT-GPIB board (not the AT-GPIB/TNT or TNT+) and NI
hasn't got any drivers for it. The version of LabView on hand, v5.1.1 has
no drivers for that board, but, my late colleague apparently had an upgrade
- MathScript & Labview 2009
Hi,
i#ve worked in the past with Labview, where i had a Full Development
Solution together with Mathscript.
With LV2009 it seems, that MathScript is only available in the
Professional Development System (OK, here is MathScript with Realtime
Features available).
Have i done something wrong @ installation or is it a fact, that i
- Labview ARM embedded Module
I just watched the NI webcast of the ARM module for labview where it
shows how you can download an application directly onto a target (NI)
arm board...
Anyone know if you can download it onto a non-NI arm board? Besides
a usb-jtag connection, I would imagine that the user would need to
program some sort of custom board support package in order for labview
- This is a system test - please ignore, it will be deleted soon
Sorry for the inconvenience.
- Re: Array question
try "reshape array"
- Receiving events from COM component with IConnectionPoint support
Hi,
I am new to labview.
I have a COM component written in vc++ with IConnectionPoint and
IProvideInfo interface support. The COM component implements a method
func() which can be called from labview. This method invokes a new
thread and does the execution. As part of the execution, some events
are generated and being sent back as call back through
- Re: Array question
This newsgroup isn't really active.
forums.ni.com is a better place to post these questions.
I presume you want to do this pro grammatically in Labivew. One thing that you could do is just to index into the array, addressing the first indice "1". This will result in a 2x2 double array (matrix).
- Array question
I have a 1X2X2 dimension array and I need to convert it to a 2X2
matrix. The array to matrix thing won't work as the arrays are of the
wrong dimension. How do I equalise them? I tried delete subset array
etc and no luck.
Hardy
- Re: buffering of samples
But you can also search the 64,000 posts for this group in the Usenet
archieve.
greg
- Re: buffering of samples
This newsgroup isn't used much.
Try forums.ni.com.
You might want to say if you are using Labview
and what version and if you have looked at
any of the examples provided with Labview
which cover this topic.
- buffering of samples
I am using pci6042e for acquiring data.
can you tell me how to buffer the samples?
- Re: Help - University project
Wouldn't it be better to ask your professor for some help?
Bruce
- Help - University project
Dear all,
We have been preparing a university project using Labview software. We
need to prepare a labview program to set three pneumatic valves, that
this 3 valves will be responsable to set three pistons in a wooden
table. Could you please help me with this program?
We would like to send you an appendix with the diagram of this idea
- Message Alert - You Have 1 Important Unread Message!
Message Alert - You Have 1 Important Unread Message!
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