What do you mean false? First I copy the files in LV with the
file-copy subroutine, then I re-icon them programmatically with invoke
node as i described, works just fine. If there's a better way i would
love to hear about it, as i have never used these invoke nodes to
programmatically change vis
if we set a timeout for the application, and after the time is
expired, it will fired one of the event in the Event Structure.
hi parimala
I have created this Editems sometime back...
http://exchange.ni.com/servlet/ProcessRequest?RHIVEID=101RPAGEID=137HOID=50650005002B350100HTHREAD=79147UCATEGORY_0=_49_%24_6_UCATEGORY_S=0
try it and tell me about it.
regards
ian.f.k
Hi,
I tried changing the limits to the ones you recommended above, the
result was that the calculated rms value was now higher than the
highest component from the FFT analysis. However the value was over
100V higher, than the value I got from using the waveform points in
the equation for rms, in
Hello,
does anybody know how I can detect a cursor change in a XY graph?
Lars
I have the same code to be run for all the ring controls.How to do
this.I want to put the code inside the loop but only the controls name
is to be repeated or changed.thanks in advance
James
Thank you for the help i managed to open it and see what you had done
, The shift register on the main while loop did the trick. Do you have
any suggestions for the blinking indicators?
Anyway Thanks again
Brett Scott
Western Australian School of Mines
Hi Ben
the picture ring is perfect, but the idea I had in the beginning based
on your example, to change the whole screen at the same time is not
feasible.
I need to have also controls on the Screen.
the question is how can I take the frame( the sunken frame around it)
out of the picture ring to
IF you want to use the same code for one ring control and us the
Strings, create a property node of the ring control and usr the
property Strings[].
if you want to use the same code for different ring controls, use a
SubVI.
Chris
The save method invoke node lets you detemine if the diagrams are
saved.
I was just trying to alert you to a possible complication.
Ben
Only if you have 6.0.x to complete the conversion.
steps!
6.1 6.0 Use LV 6.1
6.0 5.1 USe LV 6.0.x
LV will let you save code backwards for one major rev.
Ben
I need to have also controls on the Screen.
the question is how can I take the frame( the sunken frame around it)
out of the picture ring to make it blend with the rest of the screen?
if I can achieve this I can just put a pic. ring for each of the
valves and switchs independent of each
1) A while loop will always be executed once. No matter if the
terinating condition is true or false. If you want a while loop that
is not executed at all put it in a case structure.
2) A boolean case structure should always consit of a true and false
case.
3) The auto indexing in the outer while
I have had many problems with IMAQ functions while upgrading to
LabView 6.1. Two are very serious: I cannot build any IMAQ VIs on my
NT 4.0 machine and my images come in severely cropped with the snap
VIs. So far I haven't had much support on these matters from NI. I
haven't had any reply from my
We have purchased a 6025E card and want to evaluate which direction to
go. Our plan is to use the demo of labview 7 express first to develop
a simple test, and then use the labwindows demo to develop and
evaluate the same test. This would give us a good feel (we thought)
for which product we
Thanks, but i'm still confused. Is it possible to only save the FP and
not the diagram?
You didn't say what version of LV you are using, but for LV6i
Use the System Exec.vi (its under the communications Palette)
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Behalf Of Daniel Alejandro Moyano
Sent: Tuesday, March 02, 2004 9:26 PM
To: Info-LabVIEW Mailing
I didn't know that. Thanks a lot. (Should be a big warning on that
node).
If you set the timeout then if the time is expired the timeout event
will execute. This can be an empty event or you can put appropriate
code, depending on the application. You should always include the
timeout event in your event structure.
Hi everybody thanks but i got over the problem, since i found out that
as soon as it comes out of the first while loop the counnter of that
while loop becomes zero when it is not iterating. So i have put up a
case that if the counter becomes zero then only take the value
otherwise dont.
The only thing I can think of is to create a property node and use the
Cursor.Position wired to a shift register and detect a change in value
there. I don't think that there's an event for the cursor.
Hi greg
I am not able to make the border transparent, I tryed what you and Ben
said and I can not change it...
am I missing something?
regards
Luis
Hello developers!
I am a novice with LV.
I am trying to regulate a current that is passed through coils, until
my measured magnetic field reads 0. I do that with a while loope, that
is running inside another while loope.
Now my problem is, that I have to pass a value (Boolean) from the
inner
I'm using a legacy DAqCard 1200 in a Dell Inspiron 7500. PII- 400 with
320 MB ram. Labview 6.1 crashes due to invalid page fault when some
Daq VIs are called. NI.com shows I need to use NI-Daq 6.9.1 or
earlier. I downloaded the files and searched the knowledge base. There
are postings about
Ich glaube an dieser Stelle bleibt nur den gesamten Code in ein neues
VI zu kopieren, falls du das nicht schon versucht hast. Ich kann
leider keinen Stelle finden an der ein Link zwischen den zwei Vi's
sein k=F6nnte.
Sorry...
Well, I see you posted this in 1999 so I don't really expect anyone to
see my response, but I just encountered this problem myself.
The reason URL Get HTTP Document sometimes doesn't time out is that is
it very poorly written. Several of the subVIs strip out the timeout
error using VI No Time Out
By using the global and local, actually you can pass the value but it
just that it is not executing the passed value.
LabVIEW will first finished executing the inner loop first then it
will go to other tasks. Why you use inner and outer loop?
If you want to pass the value before it finished, my
You can pass a value from a while loop with a local variable but if
you've got nested while loops, the outer while loop will not be able
to do anything until the inner while loop stops running. You might
need to do something with parallel while loops instead of nesting
them.
The Picture Ring comes in two flavors.
6i and classic.
The 6i version has shading.
THe clasic does not, and its border can be colored transparent. It can
be found under the Classic Controls Pallete.
Ben
Dan,
At 2:12 PM -0500 3/4/04, Bookwalter, Dan wrote:
Can you use the FP State property to tell you if the panel is minimized ?
Yup, and now that I look at the help screen, I'm sure I used that for
something else just a few days ago, but I can't remember what for!
The remaining problem with the
Hi. I am trying to control my external hardware (a camera). A 3rd
party software company gave me a modified serial link w/ the functions
written onto the hardware, and the commands to communicate with the
camera. I am having difficulty sending those commands to the camera
and am getting no
We use system colors and dialog control for pretty much all our GUIs,
but we've run into a problem when using a system background color on
text labels on tab controls: There seems to be no system color that
will match the theme color of a dialog tab control...
We use the text labels as names on
Dear Jim,
contact NI Support they can send you a Free converter toolkit.
The *.lsb files are Files named external subroutine and are used with
CIN written in CVI. Nowadays they are supperseded by DLLs. Mostly the
came with drivers and the analysis library.
Waldemar
Hallo Dr. Beule
wurde bei der Umstellung auf LV 6 auch NI-DAQ auf die Version 6.9.x
umgestellt? Wurde das System neu installiert und die Anwendung auf dem
neuen System umgestellt? Wird die verwendete HW auch von der NI-DAQ
Version unterst=FCtzt? Wenn ja sollte die Anwendung gehen, da AI Acquire
Hallo Jan,
Ich kann das Archiv nicht =F6ffnen, da Windows und Winzip. *.rar ist
eher unter Linux =FCblich, korrekt?
Ansonsten kann ich nur der Empfehlung von Chris_de zustimmen.
Waldemar
Are you using any type of signal conditioning on your signal? What NI
hardware are you using to acquire the signal? A noisy signal may be
throwing off your measurements. Here is a A href =
http://zone.ni.com/devzone/conceptd.nsf/webmain/01F147E156A1BE15862568650057DF15?opendocumentlink/A
that
thanks Ben that was what I needed
regards
Luis
Keep in mind that the cycle average sums all the frequency components.
If you want a filtered measurement, you should look at power in band
measurements. Do the frequencies of interest track running speed? In
otherwords, are you trying to track harmonics of running speed?
You are welcome to
Thank you for your reply.
I check that VISA drivers was installed on the computer. Because I can
use MAX to see it, and
communicate with my instrument by VISA interactive
control. The USB resource name which shows in MAX
is the same resource name in my .vi program.
But the error is still there. Do
LabVIEWers,
At Brian Renken's suggestion, I have made the Info-LabVIEW status
information on my site easier to access by increasing the size of the
text and moving it to its own page,
http://www.sullutions.com/LabVIEW/Info-LabVIEW.html. There is a link
to this location from the old one.
--
This just hit the press:
http://www.computerworld.com/softwaretopics/os/windows/story/0,10801,90849,
00.html?nas=AM-90849
If someone from NI is listening, could you please tell us if this will
affect any versions of LabVIEW running on WinXP?
Regards,
-Jim
Hi, everyone
Is here anybody who ever used Protection Plus System from
softwarekey.com? If someone did and has sample code, please send me.
Thanks a lot!
Torsten Fregin,
The PDA specific drivers were written and designed with the four
supported NI-DAQ cards in mind. For more information on using LabVIEW
PDA check out this knowledge base a
href=3Dhttp://digital.ni.com/public.nsf/websearch/523914F5C24A52EC86256D410=
06B1992?OpenDocument=94Can
I
If you have not un-installed the newer version of NI-DAQ, you should
do that first, then try installing the 6.9.1 version.
If you continue to get errors, there's a utility available from NI
that will clean up all references anywhere to NI software so you can
do a clean install. During the
I must admit that I've never used the I/O Assistant. I just go ahead
and use the lower level VISA functions. It sounds like you might have
problems with the configuration of the serial port. It might be a baud
rate thing or incorrect termination character. You might want to try
some of the VISA
I have an application that outputs a string with numbers via the serial port. Ex.
SG1.23,4.56,7.89. I developed the application in English but when the application
was installed onto a Non-English say Holland language, the output string turns into
SG1,23,4,56,7,89. The periods are replaced
In all the image analysis packages I've seen, the basic brightness and
contrast adjustment functions use a simple straight-line relationship
between the old and the new intensity - basically z = a + b.z0 where
z0 is the old intensity and z is the new intensity value. 0 b 1
would give reduced
- Original Message -
From: Holland, Guy [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Monday, March 08, 2004 12:15 PM
Subject: Language Independence on Serial Output of
.
I have an application that outputs a string with
numbers via the serial
port. Ex. SG1.23,4.56,7.89. I
I have a ton of properties that I want to change based on program
properties, and I am tired of going through the tedious process of
creating a property node for each, selecting the property of each one,
and changing each one to write.
How can I copy and paste a bunch of property nodes without
You don't want a modem, you want to connect directly to your phone -
either via a cable, as the previous poster suggests, or via an
infrared or Bluetooth connection if this is supported by your phone
and PC.
There's some pointers to information on how to download SMS from the
phone here:
Monsieur,
Avec le LabVIEW Database Connectivity Toolkit, les bases de donn=E9es
accessibles par ce toolkit sont d=E9crites dans ce lien :
http://www.ni.com/pdf/products/us/4msw64-65.pdf
En plus de ces bases de donn=E9es, Microsoft Access peut =EAtre acc=E9d=E9 =
en
utilisant des ActiveX.
Le
Guy,
If you use a format specifier of %.; to format your code prior to sending it out,
you wont have this issue.
If you don't use any format, the system default will be used. and different systems
will have different defaults.
To strictly control this format to be the same everywhere, add the
select the existing property node / local variable.
Drag the the selected items with the mouse while holding the control
key.
Then release the mouse. A new copy is created
To make a copy withour creating a new control or indicator, select the
property or local, hold down the control key, and drag the selected
item to make a copy.
Thank you for your reply.
I will try it out.
Hi Matt,
I would encourage you to contact your local National Instruments sales
representative in the UK. You can find contact information a
href=http://digital.ni.com/worldwide/uk.nsf/sb/Company+Information?OpenDocumentnode=169040_us;here/a.
If there is an active user group in your area, your
I believe you have more experience in this area than I do!
I believe I agree with you re: brightness.
Before I get caried away, maybe you can help with what I understand as
contrast.
TO simplify lets just talk grey-scale.
If I look at the video signal the brightness is my DC level.
Contrast
A JPEG file is read from disk and written to a picture indicator (Read
JPEG File and Draw Flattened Pixmap). The size of the rectangle (right
and bottom items of the cluster) is checked to make sure that it is
greater than zero. This is done by converting the cluster to an array
and the Less or
Matias,
You can use the =91File Path Control=92 located by right-clicking on your
front panel and selecting 'Text Controls'-'File Path Control'. This
control will use the path functionality native to the operating
system. If this is not what you are looking for please post back with
more detail
I have an executable file (*.exe) that I want to run through Labview.
This exe asks for few input parameters when I run it through DOS
prompt, How can I input them through a labview interface.
The exe code writes a few excel files; I also want to read those files
and plot them automatically when
In previous versions of LabVIEW it was possible to wire the connector
pane to the front panel items more efficiently than in version 7.
You could click the terminal on the connector pane then click an item
on the front panel then click another item on the front panel then
back to the connector
Hello -
Which LabVIEW VI are you using? Are you using the Keithley instrument
driver? Please clarify and I will look into the issue. Have a great
day!
Becky B.
Applications Engineer
National Instruments
How would I go about creating multiple files this way?
I would like to use the Open/Create/Replace.vi to prompt a user to
enter a filename. After the user enter the filename there are several
files that are created as a variant of that file. For example if the
user enters a filename TRIP, I have
Peeru,
You can call the program using System Exec in the communication
pallette. That VI allows you to enter the commandline with input
parameters, just like you would in a DOS prompt.
If the file is something like a plain text tab delimited file, and not
a true Excel file, you can read it into
Hello National Instruments,
I need to take a .bmp file which is a picture of 5 lights. I then
need to
get
the average signal of the 5 lights and the average signal of the
background.
Then take a ratio of lights to background to determine signal to noise
ratio.
The following have been provided:
I am having a similar problem with the Basic Averaged DC-RMS.vi. I was
hoping there is also a fix for this. I am using labview 6.1 and if
possible i would like a way so that labview will point to the fix in
the vi menus insted of me trying to remember that i need to use a
different vi then the one
I need some help connecting a Omega Vacuum Sensor (PX141-015v5v) to a
Feed Through Module on a SC-2345. I am confused on which wires go
where. I am using LabView 7.0 for DAQ. Any programming tips would be
helpful too. Thanks
Try using the new file function under the advanced file i/o palette.
Once you execute the Open Create Replace function take the file path
the user entered and convert it to a string, append the letter you
want and place this path into the new file function. You can do this
multiple times and
I assume that you=92re accessing NI-SPY from the Measurement and
Automation Explorer (MAX). What version of MAX are you using?
Version 3.0.2.3005 displays the commands such as =93ibrda=94, or
=93ibrwrta=94. If you double-click on these, the four tabbed dialog box
appears with the tabs labeled
Irene,
This is great information. I think I will have to use both yours and Richard
Mahoney's advice. Your suggestion will work for the mean time but I think the
solution is to use Richard's format specifier %.; suggestion. Actually, I think the
ultimate solution would be for NI to
i am a student and new to graphical programming.i am using labview 6.1
to monitor and control a system of traffic lights from a central
location.my problem is geting the lights to go on and off.
I have encountered the same problem running Labview 7 on Win98SE and
on ME. The error can be cleared by rebooting the DataSocket server but
I have not yet gotten around the manual intervention required to kill
the Cwdss will now close popup. I am about to try XP home and Pro to
see if that helps.
Try this link:
http://digital.ni.com/public.nsf/websearch/940218C86275330A86256BBA0074780E
You asked the same question A
href=http://exchange.ni.com/servlet/ProcessRequest?RHIVEID=101RPAGEID=135HOID=50650008007ABCUCATEGORY_0=_49_%24_6_UCATEGORY_S=0;here/A
and the answer is still the same. Provide some details on what exactly
you're attempting to do and what specifically is
Turn off automatic tool selection. This feature can be a time saver
but I also find that I can do things a lot faster by using the space
bar or tab key to change tools like I did for years.
After some time I think I can actually hazard a guess as to what is
going on here. What it appears to be is that although the ocx is
registered correctly, the user has to be using a system where the
activex control is _licensed_ correctly to embed it in labview code.
Running on a machine with VB6
If I send a . why would I want it to
be anything else other than a .?
Because the person who wrote it down was working in Language A and the
person who read it later was working in Language B. LabVIEW does
transparently handle things for you -- it handles the localization issue so
that you
I created a VI to display waveforms on the waveform graph. The problem
is the time scale of the VI is always the year 1904.I tried to select
absolute time in Property options of the waveform, but it remained the
same. Can anybody help me with this? Thanks.
When I pressed install the CD-ROM had run for several minutes, then
the autorun page automatucally closed and nothing happened afterward.
Don't change anything in your OS or code.
Just add the following in your LabVIEW.ini file:
useLocaleDecimalPt=False
Add the above to your application (exe) ini as well.
I had the same problem for a German install.
Thank You
Michael Aivaliotis
http://forums.lavausergroup.org
I have an
6i and classic.
The 6i version has shading.
THe clasic does not, and its border can be colored transparent. It can
be found under the Classic Controls Pallete.
It is easier to color the border of the classic control transparent, but
just to be clear, it is possible to color the 3D one
Thanks, this is very helpful
At 4:27 PM -0800 3/8/04, C. Allen Weekley wrote:
Has anyone written VI's to perform serial I/O using functions in
kernel32.dll?
Allen,
Why re-invent the wheel? Actually the people who did this are the people who wrote
the VISA library. Any reason not to use their work?
-Scott
Micheal,
Thanks for the link, unfortunatly though the example is in 7.0.
I only have 6.1. Is there some way to get it in that version?
Thanks,
Brian
We use system colors and dialog control for pretty much all our GUIs,
but we've run into a problem when using a system background color on
text labels on tab controls: There seems to be no system color that
will match the theme color of a dialog tab control...
We use the text labels as
This is great information. I think I will have to use both yours and Richard
Mahoney's advice. Your suggestion will work for the mean time but I think
the solution is to use Richard's format specifier %.; suggestion. Actually,
I think the ultimate solution would be for NI to transparently
This just hit the press:
http://www.computerworld.com/softwaretopics/os/windows/story/0,10801,90849,
00.html?nas=AM-90849
If someone from NI is listening, could you please tell us if this will
affect any versions of LabVIEW running on WinXP?
Yep. It just hit the presses, and MS was
The vi you have given is working like this.If i select PARD,HOld
onadjust like this it's giving first HOld on adjust,and then PARD.BUt
my requirement is it should give in the same order i have selected.
I want to create an array of 1D data for each possible combination of
data contained in a 1D array of clusters containing a 1D array.
I'm having a little trouble because it seems to require some kind of
recursive VI, but I don't know what it would look like, since the data
to the connector panes
I spent some time modifying the non-linear Lev-Mar fit to do a rational
polynomial fit of z=f(x,y). The one I ended up using was the ratio of
two polynomials, where both polynomials went up to a power of 4 in x
and/or y. It worked really well for smooth functions. It is just like
a least
Hello,
It seems that V7 does not properly recognize V6.1 cluster references.
Has anyone else seen this?
regards,
Ben
In the past we acquired and saved the waveform using an old HP
oscilloscope. The saved waveform was then analzyed using a program
written in HP BASIC on a HP computer. What we are trying to do now is
do away with the HP computer, so that we can analyze the data on a
Windows based PC.
So far we've
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