we can manage smartCard reader across the PC/SC windows library
(winscard.dll). is an IVI Labview exist to manage PS/SC windows
library?
The Application Builder will happily take a .ico file and use it for
the icon of my built application, the missing step is only to convert
the LabVIEW icon to the .ico file, and that can't be so hard if
someone is giving away freeware to do it ;-) It does seem bizarre to
me that this tiny feature
tmh
there is no need to do polling if he uses the event structure. Polling
takes up processor the event structure, saves processor time for
something else because it waits for that one event to happen. I agree
event structure is probably overkill but it is easy to learn how to
use and will let
Coffmon, Roger [LBRT/LNA] wrote:
Wow!, the message I just posted got auto replies from other
subscribers. Is this going to be something permanent or
are we still working out the issues?
-look at the headers-
oups, there seems to be an issue. Most mailinglist-software I know sets
Precedence: bulk
Friends
I have a waveform graph that's isolated in a test program to simplify
things. It has 1 x-axis and 3 y-axes. I have a pull-down button with 4
options: Grid Off (0), Grid on Y-axis A (1), Grid on Y-Axis B (2), Grid on
Y-Axis C (3). So if the user changes this setting, I set the Active
Friends
I'm using the above standard LV6.0.2 vi. I call it with a 50 % duty cycle,
asking for a period of 20 and a total of 105 samples. The result is OK
except for the 2nd to last sample of the second cycle. For example, suppose
every value is 1.00 or 0.00. Then samples 0 to 25 are 0.00, 26 to 50
Craig Graham wrote:
Rolf Kalbermatter wrote:
No- the assumption is that someone else is liable if it goes pear shaped. If
you buy a product and at some later date it doesn't do as advertised you can
blame (perhaps also legally) the supplier. If it's open source, you can't.
I think this isn't
I am using one of the examples included in LabView 6 for serial
communications. I can't get it to work but I believe the problem is
the stop bits. How do I can the number of stop bits and baud rate?
Hi,
You can use the VISA configure serial port vi in order to do what
you're looking for. This vi is in the function palette - Instrument
I/O - Serial.
Hope this helps !
Julien
User VI server, under Application Control, to load and run the
second VI. This way the original VI can exit after the second VI is
running. For examples, goto Help - Find examples and search for VI
server.
-Joe
In Excel, goto Tools - Macro - Security, check all the boxes so it
trust all macro source (you can test to find out which one works, or
check all of them), also try to lower the security setting from
highest to medium or even lowest.
-Joe
I don't see why it needs an event structure... the simplest way is to
make one VI a subVI of the other (it is up to you which way round),
use the Front Panel Visible properties of the two VI's to control
which one is visible at which time, and use dataflow to ensure that
the functions of the main
There are some free graphics, irfanview like m3nth mentioned above,
that you can call externally to convert a gif file to jpg or bmp so it
can be loaded into labview.
-Joe
I found a problem with using fuctions In Port8.vi Out Port8.vi in
LV7 executable. Of course I have cviVXDWrapper.dll in directory where
the executable is. The problem is with the portability, because
everything works fine on machine where the LV7 environment is
installed.
The problem starts if I
Here is what my work is all about. I am trying to develop a software
for Heart Rate Variability analysis. I am not sure if you are aware of
heart beat waveforms, they are bunch spikes, occuring at irregular
intervals. We have to do analysis on this waveform. How ? First we
have to create a plot
A common factor people miss when getting this type of error is in the
properties of the Daq channel name control. If it lists only the
inputs, right click on the control, and select I/O name filtering.
From here you will see that the analog input channels are only being
displayed. depending on the
Hmmm - possible with exceptions. A PWM waveform can be generated
using a UART by transmitting the same character over and ensuring that
it is sustained at 100% (no gaps between characters). This is VERY
dependant on the type of hardware installed in the system, the
baudrate you're using, and the
This is the correct answer. %f interprets only numbers and either ,
or . depending on what your system uses as a decimal seperator.
If you want both numbers, you need to use a format specifier of %f-%f
which tells the function to get two numbers seperated by a -. This
will return two values
SRQ: 199062
Eventuell ist der MS Installer auf Ihrem System besch=E4digt.
Es gibt einen Eintrag in der Microsoft Knowledgebase, wie dieses
Problem behoben werden kann:
a href=3Dhttp://support.microsoft.com/?kbid=3D315346;Reregister MSI/a
Ich hoffe mit den Vorschl=E4gen dort kann die Problematik
We can't open since we have LabView 6.0 Are there any examples in 6.0?
Anyone using GOOP ???
I am after a small example... I am just getting started and would like to
see a real world example...
thanks
Dan Bookwalter N8DCJ
Hi-Stat a Stoneridge Co.
345 South Mill St.
Lexington, Ohio 44904
(419) 884-1219 Phone
(419) 884-4172 Direct
(419) 884-4195 Fax
[EMAIL
I am trying to run a deterministic VI (LV 7.0) which reads data from a
DSP and displays it in a graph. The VI has to read the data within a
certain time or the DSP overwrites the buffer. I find that the graph
stops reading (for about .25 sec) when I click on its title bar (or
that of any other
Is your code posted somewhere? I couldn't find it in the Code Library.
And whether or not it's a couple thousand dollars or just a
thousand... I think it's worth noting that you've already paid a
thousand dollars for your development enviornment, as compared to a
couple hundred for most regular
Hi,
I have attached a link to a document that discusses the error you are
getting:
a
href=http://digital.ni.com/public.nsf/websearch/83ACB581701C801586256B8F00712990?OpenDocument;Error
-2146827284 When Importing a Macro to Office 2002/XP/a
I hope this helps.
Sincerely,
Feroz
National
Hello!
I am trying to create a windows system variable. I would like to know
if this is possiblew with Labview version 6.1.
Thank you
Act,
Here is a link to that original posting that you and LocalDSP have
been using.
a href=http://exchange.ni.com/servlet/Redirect?id=10840546;Why am I
getting very high values for the very low frequency region of a random
signal?/a
By sticking with the one posting we can all keep the issue
Hi,
First the disclaimer...My knowledge of the Sun environment is very
limited. Given that; it may be possible to use launch your browser
with LabVIEW and pass it a comman line argument to print the desired
HTML file.
Just my 2 cents,
Regards,
Juan Carlos
Thank you, I found the problem myself yesterday.
It works like a charm now.
Why does the Find all Instances in LV 7.0 look through the password
protected toolkits etc. that are involved with my program. The abiulity to
click on an icon and Find all Instances is extremely useful. However
sometimes (oddly enough only sometimes) it goes off looking in quite the
wrong kind of
I've complained about this in the past, there is no way right now to do this (hidden
ini setting?). It's worse now that NI has
protected more VI's than before.
Michael Aivaliotis
Why does the Find all Instances in LV 7.0 look through the
password protected toolkits etc. that are involved
The slowness is due to memory relocation everytime the array size is
changed. Try to initilize a fixed sized array (65000x15)and wire it
to the shift register, then use Replace Array Element to replace a
single element, a row or a column depends on what you need.
Joe
I have a ring control.
While the program is running:
1... I set its strings array to { A, B, C } via property node.
2... I set its value to 1 or 2 (by selecting B or C) via mouse.
3... I set its strings array to empty.
4... The control now shows a 1 or 2 in LV7, where it showed
blank
Not enough information - you don't say how long the angled line is to
be.
Suppose your baseline goes from {X0,Y0} to {X1,Y1}.
Your Angle point is {X2,Y2}
Your angle is A (in radians)
The cosine C = cos(A), the sine S = sin(A).
You have to pick a length L.
Then your end point {X3,Y3} would be
Hi,
The power spectrum will be in units of Vrms^2 which are power units.
There is a very usefull VI that you can use to easily transform the
units of your spectrum; the VI is called strongSpectrum Unit
Conversion.vi/strong. You select the type of spectrum that you have
and the units that you want
Try this: separate the acquisition and display into 2 VIs, and share
the data with a LV2-style global.
Use VI server to launch the acquisition VI, hiding the front panel.
Then display the data in your display VI by polling the contents of
the LV2-style global.
Just curious: what hardware and
This question is now answered by the following KB
a
href=http://digital.ni.com/public.nsf/websearch/B0FEA54A69E5EB0C86256E3D007F182B?OpenDocument;Why
Does My Executable Hang When It Is Opened When I Use A MATLAB Script
Node?/a
In the case where it is working in the development system but not a
Hey Jawalk01,
I would also suggest looking at the Write to Text File and Read from
Text File examples that ship with LabVIEW 6.0. You can find these by
opening LabVIEW and going to Help Examples Fundamentals File I/O
ASCII Files Write to Text Files (or Read from Text File). The
Read from Text
Hey Cyril,
The DAQ Assistant uses our new driver DAQmx. You can find the DAQ
Assistant on your function palette by going to All Functions NI
Measurements DAQmx =96 Data Acquisition. The DAQ Assistant is in the
lower left corner.
Both the PCI 4472 and the 4474 are supported in both
How do I set a coordinate system using Vision Assistant 7.0 (not
Vision Builder)?
Hi RayPh,
Are you able to communicate with the instrument using other
application software such as HyperTerminal?
If so, check the settings under properties.
In Labview: At the Block Diagram, select Instrument IO from the
Functions Palette. Select Serial and choose VISA Configure Serial
Port.
Hi Joe,
Thanks for the info. Do you know any site that has examples related
to this task ? Please let me know.
Act
Hi Ben. thanks for the feedback. I will try this when i get a chance.
I am talking to a Motorola 56300 Dsp in a Delta Tau Pmac Motion
Controller card, (PC and ISA versions) over DPRam. I am using a DLL
supplied by Delta Tau. I wrote a LV driver to poll the Pmac card and
retrieve the data.
The
I am a graduate student at Auburn University. I am new to labview but
I am eager to learn. We are researching crack susceptibility of
differnt concrete mixes. We will be running tests on 24 different
specimens at one time. One specimen will be a control. We will match
the temperature of the other
I have a large data file that is continuously being added to. I want
labview (in windows XP) to tell me the size of that file as it is
updated, but there seems to be a 4GB threshold (I am using a U32
variable to display the size, so this makes sense). What I want to
know is this - is there a way
Question 1: Where would I find the Print Dialog VI, so that a user has
the access to select his desired printer, no of copies for printout
and so on...
Question 2 : How would I print a Graph on the front panel without
using Report Generation VIs ?
Hope I get the answer to these questions.
Hi,
I am trying to read a long ASCII String from 2 different PCs using
TCP/IP. Each string has alpha numeric information such as Sensor
1{[(HVACTemp1,70.00,dF),(HVACPres1,1000.00,psi),(HVACPres2,828.00,psi),(HVACVib1,500.00,mv)],[],[]};Sensor
Pretty tough to guess without seeing what you're doing. If you post
your code so we can see what you're doing.
One possbile cause would be setting the tunnel out of the case
structure to Use Default If Unwired. This option allows you to not
have to wire an output from each case, but will use
trying to add this cwds.ocx to my vb6 code and get this error. anyone
ever see this error.
thanks
Joe
As an answer you can download the openG toolkit from www.openG.org and
there is a tool in there that will this.
I have ran into this during other time critical data acquisitions
within a loop using win2K and found that if I put a wait function in a
loop with 0mS it works just fine if I move the mouse.
Sorry cannot help more
Hi
I am looking for some direction in how to modify the appearance of a
string indicator in my vi's front panel. I would like to remove the
rectangular box that surrounds the text to make it appear as it is a
just regular text on the front panel. The reason I want to do this is
that I would
Scott:
Do you have any insight into drivers for the PCMCIA cards such as the
DAQCard-700. I do a lot of field work and at least under system 9 the
combination of the DAQCard-700 and a powerbook is extremely powerful.
I'm considering hiring an EE student to write a driver for this and
would
Hello List:
Anybody have an Omega CN3251 temperature/process controller LabVIEW driver.
Thanks
Robert
As things seem to change about this list, may I give my vote / opinion on
two aspect :
- NO ATTACHMENT : I don't fear virus (at this time) as we work on Mac and
just see them passing by with a slight ironic smile, but link to a
download place is just enough for letting you free to decide if you
I would like to thank Scott Serlin, Ben A. Rayner, Stephen Mercer, Paul F. Sullivan,
Simon Whitaker and Torben Laursen for replying to my question so far. Thanks also to
any I may have missed. I look forward to making use of the info shortly.
Best wishes,
Matt Rhys-Roberts.
Hi all,
Does anyone out there have any experience with a video capture card that
can be used with LabVIEW (with IMAQ) and Linux?
Any recommendations based on experience with any good cards?
The main hassle (I'm sure - I'm a relative Linux newbie) will be setting
up the card to use Linux.
Hi there
Who can create a clock for me with the following functions:
- Start
When you press the start button the clock is running
- Stop/Reset
When you press stop/reset the clock tops and waits to be started again
with the start button. however when you press this button and you
Craig Graham wrote:
- Original Message -
From: Marco Tedaldi [EMAIL PROTECTED]
To: Info-LabVIEW [EMAIL PROTECTED]
Sent: Monday, March 29, 2004 12:59 PM
Subject: Re: OpenG Coding Challenge - Remove Backspace
That's just depressing! There are people in the rankint with a speedup
of
Hello,
I have a BEI encoder signal that I am sending to the DAQ board counter
source pin (GPCTR0_SOURCE) which gives a frequency of 3600 pulses per
revolution.
I wish to trigger an analog input every 360 pulses per revolution so I
am trying to use the Generate Pulse Train (DAQ-STC).vi with an
[EMAIL PROTECTED] wrote:
From a Reuters news story dated March 29, 2004
Gates also said advances in programming will allow software developers to
create applications in less time by using visual representations of the
inner workings of software rather than writing lines of programming code.
Hi:
I'm writing an application where I need to be able to bit bang serial
port output lines and check the status of serial port input lines in LV 5.1.
In the vi.lib\instr\_sersup.llb folder there is the serial line
control.vi and it uses two sub VIs to allow controlling the DTR and RTS
lines
Thanks for your comments.
NI germany has offerd me to get a test version of LabVIEW 7.0
(including application builder). This will be my next try. As I
mentioned in the posting before, I already do testing with the
executable with multithreading disabled (ESys.StdNParallel=0). At the
moment the
Craig Graham wrote:
Hmm. Just got round to my second approach and it also takes 20ms. However if
I change it to subroutine it comes down to 8ms here. Have the posted
results been normal priority or subroutine?
For the results currently posted, all entry VIs were set to the following:
Curses. No IMAQ in LV for Linux.
That aside, I can still think of a use for a video capture card that
works in LV/IMAQ under Windows AND is useable with Linux (without
LabVIEW or IMAQ). Any recommendations for a card that fits both
requirements?
Cheers,
Steven
Rolf Kalbermatter escribió:
IMAQ
Hello Simon,
In order to have 2 copies of a FP vi, you cannot run them at the same time
with the same name. You have to copy the vi file with a different name. What
you can easily do is to create a vi that
copies the vi to the temp directory, then run it with the vi server method
and delete this
While searching the ni site, I found a far better solution that I did not
know about. Have a look at the following link:
http://zone.ni.com/devzone/conceptd.nsf/webmain/3F078841321ACA4686256ACC0068
5B15?opendocument
If you use VI Server to open a reference to a template VI, you actually get
a
Always good to see a company that still has some fun!
Derrick
-Original Message-
From: Andrew Johnson [mailto:[EMAIL PROTECTED]
Sent: Thursday, April 01, 2004 8:42 AM
To: info-labview
Subject: New Version of LabView - cool beans
Looks like NI is finally taking on Java... I'll drink to
Hi:
A number of people have told me that using the VISA Property Node.vi is
the way to go. It appears to have more functionality than the Device
Control/Status.vi.
The VISA Property Node.vi does allow control of lines as expected, but .
. . . when reading the status of a line that line's
Hello LV Community:
Has anybody ever written SNPP (Simple Network Paging Protocol) VIs? I have
to send messages to an SNPP server so I cannot use SMTP.
Thanks
Robert
Thanks very much for your information.
Does anyone know why the Open Block Diagram Right-click option would
be disabled on a running subpanel, even if the allow user to open BD
option is set to true. The SubPanel VI is a standard vi with default
options. If you look at the templates example for subpanels the right
click option is
I want to build a panel with several numeric controls where each time
any of the values are changed, it sends a packet over ethernet
indicating which control was changed and the new value. I'm not sure
how to approach this. My two main problems are:
- How do I trigger the packet to be sent
gardowp wrote:
LabView 7, VSS 5.0, eror 25581, Win 98. Source Safe worked with
version 6.1. I used an error cluster to find what 25581 is - and it
came up with a bogus result Error undefined.. When trying to
connect to VSS error 25581 states Visual Source Safe does not appear
to be
HCS wrote:
Hallo Zvezdana,
where can I find this NEW version of InPort- and OutPort-VIs? The only
file I found is the old AccessHW.zip from 1998, that does not work
under WXP with LabView 6.02.
And what about LabView 7.0? I hoped, the direct hardware-access under
W2k/WXP is possible with
gardowp wrote:
Found the answer myself:
http://digital.ni.com/public.nsf/3efedde4322fef19862567740067f3cc/ca6cd31f906b4e4d86256d3300590fbf?OpenDocument
It took over 90mins, should have been a lot less. I should have been
able to search for Error Code 25581.
Mmm, not so sure. Some search
Thandal wrote:
yesterday evening i solved my problem ,
my internet connection was down
so couldn't reply you.
I manage to find vi.
how can i assigned the shads i get to the LED as it's color
because LED take array as input to it's color property
Well in principle the collor array is an
In LabVIEW 7.0, these files do not exist!
In another post i've seen comments about Save with Options then
Application Distrobution. But then you cannot Build and executable
because it saves without block diagrams.
I really feel we are being given the run-around with the problem with
the Office
I am acquiring two channels using PCI-6052.both channels to be read at
2ks/s,but I want to scans read at a time different for each channel,So
I put two AI-read vi's in two different while loops.but the second
while loop waits until the first is completed.Can we run independently
both while loops?
Wayne Si wrote:
I need to pass the pointer of an initialized 1D array of U8 type to my
Dll file. At first, I set the length of the 1D array and initialized
it. Then I configured the Call Lib Node and made the input parameter
as 1D Array Pointer of U8 type. The prototype of the called function
Not possible
The easy way to do this is to save your Excel data as x.txt.
Then you can just use the Read from spreadsheet file.vi.
Hi!
The easiest thing you can do is, from Front Panel, right click the
chart, enable Ignore Time Stamps. In this way, the starting point of
the X axis will be 0.00. Now, it will be easier to work with scales
and format axis.
N.B. The solution is good if you don't mind the graph to show you the
For some reason in LabVIEW 7, when trying to setup a VI to output data
through an analogue channel, the channel selection only lets me select
input channels. Has anybody any idea why this is? Or more importantly
how to get round this simple but annoying problem. (Note my VIs work
in LabVIEW 6).
La barre d'outils de LabView 7 contient un menu d=E9roulant vous
permettant d'effectuer quelques op=E9rations sur les polices de
caract=E8re.
Si vous s=E9lectionnez un texte d'un contr=F4le et que vous modifiez la
police, le style ou la taille, les modifications ne s'appliquent qu'=E0
ce que vous
From the LV 6.1 Help File:
Front Panel Options Page
Select Tools=BBOptions and select the Front Panel page from the
pull-down menu.
Use this page to set front panel options.
Use localized decimal point=97Uses the decimal separator for the
operating system instead of the period. Place a
I can't answer that question specifically, but you could always
download a free graphics tool that will let you cut/paste to clipboard
and save between numerous formats, such as gif/bmp/jpg. My favorite
is Irfanview (Google Search: Download Irfanview).
If you place a control (or indicator) on a tab with the mouse, it'll
be part of the tab. To float it on top of the tab control, place it
outside the tab, then use the arrow keys to position it. You may need
to Move to Front (CTRL+Shift+K) so that it will be on top of the
tab. You'll have a
--3838683.1082426904228.JavaMail.quiq.tekken
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
You don't need a case structure.
Simply use the quotient reminder function. (See attached image.)
--3838683.1082426904228.JavaMail.quiq.tekken
Content-Type: image/gif;
Greg McKaskle [EMAIL PROTECTED] said:
While it is always good to get feedback, it is even better to get
feedback that you understand.
I apologise if my comment was provocative - it is only an opinion, but it wouldn't be
the first time someone on info-labview has had one, and I'm glad to
David,
Here I am at last, I tried to get a time difference from a string value
namely a Get Date/Time String rather than a time stamp value. And from a Get
date/time in seconds, I can effectively have the result I wanted.
Thanks again for your reply
Gerard
--
Gérard Férini
Switzerland
hi all
i try to scan a string which contains strings as: 20-20. So i've
tried many options %f... but each time LabView returns 20... How
doing this ??
Thanx for answers
Matt
Hi Samuel,
You should start by opening the ag3499x Path Operation Test.vi. In
this VI, you need to specify the GPIB address of your instrument in
the resource name control. Each control on the front panel has a
description - press Ctrl-H for the context help and put your mouse
over the control to
Hi Mike,
thank you for your answer! Synchronizing the channels is not exactly
what I have to do. It's better to describe the problem in detail: To
control an hydraulic test stand I send a setpoint to an electric control
unit. The setpoint signal needs an update rate of about 1 kHz. At the
same
From: Scott Hannahs [EMAIL PROTECTED]
The USB to serial adaptor we all use (all OS X systems are USB) is a
keyspan. It has software that shows all the communication in nice colors
for each direction. Just watch it scroll by or save it to a file. Shows
all the control codes etc. Shows port
Hello Wireheads:
Back in the LV2 days there was a company that sold a toolkit called GenMatch
pattern recognition toolkit. Does anybody know how to locate this company?
Did the toolkit ever get ported to Windows?
Thanks
Robert
Hello E,
E. Blasberg wrote:
Hi All,
I have a truly unusual GUI phenomenon using a sub-panel in a sub-panel
(in LabVIEW 7, obviously ;-).
[snip]
Now, normally when I see the computer apparently freezing up or reacting
sluggishly to user input, it's been because there were no waits in the
GUI
John Rich [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED]...
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
Hello,
we use here some older LAN to GPIB interfaces E2050 with Agilent's SICL
library on HPUX 10.20. Now we need another one, but Agilent says that
the successor E5810 is not compatible and advises to purchase a new
library. On the other hand I read in an older posting here
([EMAIL
Hi, have a look at
http://www.pe.tu-clausthal.de/~pesba/download/duplicate_bool_array.vi
Greets
Stephan
clg6621 [EMAIL PROTECTED] schrieb im Newsbeitrag
news:[EMAIL PROTECTED]
Hi all. I am new to LabVIEW, so I apologize in adavance if my
question is basic. I have a 2D array of boolean
Ciao Filippo,
so che non =E8 molto educato nei confronti degli altri scrivere in
italiano ma sarebbe utile per me capire esattamente il problema
proposto. CIAO!
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