I understand from Greg McCaskle's answer that this is something which
may come in future (And judging how far LabVIEW has come, I'm sure it
will be incorporated).
If you're developing code in other languages which create
COM-compliant DLLs, then is it not possible to write a wrapper DLL in
this ot
Hi Luca,
THANK YOU so much for helping out.
You shouldn't by any change also have the examples?
Best regards,
Jacob
I want to send a single command to a device about the com1-port. I
made a case-structure with a visa-write vi in the true case. In the
false case is another command. But if I start the vi with a binary
switch, the vi send continously data to the com port. How can I
inhibit this? I need only one exe
I am new to LabVIEW. Please provide me better solution.
Are you definitely starting the VI with the "Run" button rather than
"Run Continuously"?
If that's not the problem, you'd be best off posting your VI here
before we all start making assumptions about any looping structures
you might be using.
Hi Luca,
Okay. Thanks anyway for giving it a try, and for helping out. I really
appreciate it.
Regards,
Jacob
Jacob,
I'm sorry, but I couldn't find them on my system. I have only the VI
template.
I've given feedback to the web administrators and I hope that they'll
put the examples back again as soon as possible. That's all I can do
at the moment.
Regards,
Luca
It worked fine, thank you !
Anne
Hi, I have a angilent oscilloscope connected in serial port with my
PC(my oscilloscope does not come with GPIB interface). I wish to
acquire the phase different measurment from this scope through serial
by using labview 7.0. I have downloaded the labview intsrument library
files for this equipment
I'm not quite sure what the problem is after looking at your diagramm.
If you're looking to have the frontpanel representation of the
"Temperature" indicator show binary, this will work if you change the
indicator type to integer (I32 or I16).
If you're looking to extract the digital values from
Hello All
The "Generate User Event" can add the event to the end of the queue.
Is there any possibility to add the event to the front of the queue?,
like in the standard "queue operation"?
Thanks in advance
Pawel
Hi, I create a GPIB VI that measures the freq response of a filter. I
have no problem in using the web publishing to create a htm remote
panel file. I have uploaded it to my free website under bravenet.
(http://jackolim.bravehost.com/Project8.htm). Yet my internet explorer
can't open this site and
At 12:43 AM -0800 2/16/04, Joe wrote:
Hi,
I'm looking for a software for snooping on serial
port for max os X.
Any Idea ?
Have you considered LabView? Just checking...
- Andrew
Is there a driver for a device I have called a Data Shuttle by
Strawberry tree? It connects to the parallel port of a PC. When we
purchased it it ran on Win 3.1 and came with free software. It has 16
analog inputs that can be thermo-couple.
Yes I start the vi with Run continuosly because the vi has also some
other things to do.
My problem is basically to find a structure which execute a code only
one time, although the button value associated with the structure is
constant true.
When inputting an number into a numeric number, I put two dots instead
of one and the numeric input discarded my number and put zero instead.
How can I setup the numeric input that when it checks the number for
correct input and removes the extra dot?
Like I mentioned, your example doesn't append any termination
character to the string that you're writing and most serial
instruments require this. I think MAX adds a newline by default. Check
your instrument manual to see what if anything is required. If you
need to add one, you can use the build
Dear Feroz:
thank you for your enuthunisis very much!
what you say just is what i try to do!
but it is only partly solve my question,you see ,i only have lv6.1,i
haven't much money to enhance the lv7.0,in china ,it will cost 7666
yuan to enhance the lv 6.1 to lv 7.0.
but i really thank fo
Rather than using "Run Continuously", have the code that you want
executed only once run first, leading onto a While loop containing the
code you want to run repeatedly, with a boolean button (labelled
Stop/Exit/whatever) added to the front panel to allow you to exit the
loop cleanly.
I didn't reply to the original email, but after finishing up some LV
changes, I decided to try a comment. Of course this is one of those
topics that is difficult to discuss in writing, so please don't use your
whiney voice when reading it. I'm simply trying to give insight into
our process.
Hello!
I need to apear label in a boolean control botton when it was selectioned. I
use propertie node of control to do it. But when the label apear, position
of control change. How can I do? I don't want the position control change.
Daniel
matlab has worked out unique boundaries for my particular application.
now i want to transfer these boundary lines onto an xy graph in
labview.
so far i have been able to paste the boundaries on but then my results
from the ladview programme do not show up on the graph because i have
pasted the bou
Hi people, how are you? Well, I have a dubt and I would like to know
if some one can help me. I have to do a program that read a sound of
microphone and show this sinal (spectrum) in a graphic. I would like
to know what I have to do to read this signal of a sound card. Please,
help me...
Regards, W
Error = 66 is
LabVIEW: The network connection was closed by the peer.
This indicates the peer (i.e. the other node) closed the conncetion.
This leads me to believe the the "issue" is not on your XP machine,
but the other node.
I have seen this error when doing TCP/IP based interactions with a
Strawberry Tree are now IOTech and this page appears to have a link to
download LabVIEW drivers:
http://www.iotech.com/ftp.html
(By the way, it took me about 30 seconds to find this out, starting
with a google search for 'strawberry tree data shuttle')
Hi Bichillo,
I posted an example here.
http://exchange.ni.com/servlet/ProcessRequest?RHIVEID=101&RPAGEID=137&HOID=506500050014570100&HTHREAD=87828&UCATEGORY_0=_49_%24_6_&UCATEGORY_S=0
It demonstrates how to do what you are asking.
I do not mind you laughing at the code.
Have fun!
Guess i know what u mean. I have to get my own server that is
accessible to other users so i can upload my VI. Thank you.
dear expert Ben:
thank you for your enuthusis help!
but i didn't know:who is George Zou?
are your spell right?
i have search the code library,can not find george zou!
i am sorry,in china ,no one can solve this ,i believe!
Thanks to everyone who answered my question about RS232-controlled displays
suitable for LabVIEW RT. Here's a short summary:
1) PC-like displays (VGA, 1/2VGA, 1/4VGA)
http://www.amulettechnologies.com/product.html
http://www.xantech.com/splcd/
http://www.qsicorp.com/
At 18:18 -0500 02/13/2004, Subramanian, Shankar, K wrote:
>How different is it to configure and acquire data using serial port rather
>than NIDAQ card. Could anyone help me out in this?
A lot different. Now the problem is communication with a device rather than
configuring a board. Whole differ
On Win2kPro the folder view options are inherited by file/open dialogs.
In explorer, set the view to detailed (and perhaps to sort by date
modified). In Tools->Folder Options->View tab, click 'Like Current
Folder'. This won't help window size.
> Can anyone tell me how to adjust the display set
One way of doing this would be to initialise a Boolean array with 4096
elements, i.e. one for each number, then use Replace Array Element to
set/clear each one as needed, Index Array to check whether an
individual number has been used and Search 1D Array to find the first
unused number.
Another wa
It has been a vry long time since I worked with HP Basic but a GPIB
Read should work with instrument assuming that there's data in the
buffer, you have the correct address, the instrument's connected, and
you're using a NI GPIB card. Have you tried something simple like
writing IDN? and then doing
I cannot understand this. Why its better not using continuously
running? Its very difficult for me to change the whole program.
I have a while loop which execute code every some milliseconds. The
loop runs until a binary-switch is true. After a certain time running
the loop I decide to start a gen
Hello, people mate!!
I would need to know if it is possible to remove the window case in the
picture.ctl. I mean, I would like to show a picture less window case.
RGRDS.
Daniel Moyano
Hello All,
I am using the Text.SelStart, Text.SelEnd, Text.FontColor properties to
color incoming rs232 strings as they are displayed in a text box.
(I am snooping 2 ports and I need each port to have its own displayed
color.) The problem is that when you add new text to the display it reverts
al
Will,
We use Toshiba Satellite laptops at Blue Ridge Test. We have two different models.
Both support dual monitor output. Since these are not our primary development PCs, we
don't usually use dual monitor mode with LabVIEW & TestStand.
We do use dual monitor mode for PowerPoint slideshows freq
At 17:48 + 02/13/2004, Craig Graham wrote:
>It *shouldn't* need a terminator since you specify a byte count in the first
>two bytes of the packet. Check sums should be OK since my checksum generator
>is producing results consistent with their examples. The terminator has to
>be worth a try thou
At 12:39 +0100 02/14/2004, Rolf Kalbermatter wrote:
>The original programmer was a seasoned C programmer
>with little to no knowlegde about LabVIEW. Lots of globals and locals all
>around,
That text language background really shows. I hope I unlearned a lot of habits!
This code instead of using lo
I currently need to install an application which was built with
labview 6.0 but It was not built with the runtime library included.
Is there anywhere I can download these files??
i want to be able to call my computer using Voip. I know this service
cost money. I dont just want to call the computer, i want to call
labview and all labview to have access to my voice, so i can do speech
commands on it.
There is no way of specifying a numeric control should ignore extra
decimal points. The closest you could come is to use a string control
and perform the parsing yourself, which would have many drawbacks. I
hope this is helpful.
Shawn Walpole
How about the shipping example called Sound Card Simple Spectrum
Analyzer.
George responded to one of your earlier Q's.
http://exchange.ni.com/servlet/ProcessRequest?RHIVEID=101&RPAGEID=135&HOID=5065000800EABB&UCATEGORY_0=_49_%24_6_&UCATEGORY_S=0
Ben
Hello List,
I am using the NI-7344 motion card and the NI UMI-7764 terminal card to
interface with an Emerson NB-208 control equipped with an ECI-44
terminal board. I am driving a Trilogy linear motor.
I plan to operate in Open Loop/Stepper mode and just send step and
direction info to the drive
At 01:31 -0500 02/14/2004, Mohana Yethiraj wrote:
>On Feb 13, 2004, at 11:30 PM, Scott Hannahs wrote:
>
>>Many systems have a way of snooping on serial port communications. I can give you a
>>good way for Mac OS X.. But I am going out on a limb and guess that isn't your
>>host system! :-)
Problem solved. Thank you Jean-Pierre Drolet for you observation that I am
rewriting the whole string each time, for some reason I did not see that
even though it is painfully obvious. I think it would be nice to have an
append method for the string control.
I have a memory leak problem with an application built under LabVIEW
6.0.2. I have found that the source of the problem lies within a loop
of code that runs every minute. It reads numbers from a remote data
socket server and appends the numbers to 75 text files using the Write
Characters to File.
Testing what?
Thanks, I think trying to do the parsing myself would be a waste of
time.
Thanks again
There are actually 4 different ways you can connect to an Oracle
database from LabVIEW and the Database Connectivity Toolkit:
Microsoft ODBC driver for Oracle
Microsoft OLE DB provider for Oracle
Oracle ODBC driver for Oracle
Oracle OLE DB provider for Oracle
In my experience, the
you are right!
i try to access Geogre zou's "http://gtoolbox.yeah.net"; ,but
failed,"web error",is it expired? or have deleted?
pyj
You should post your VI so it can be properly looked at and give a
better idea of the sequence of events that you want to occur. I'm sure
there's a better way than using Run Continuously, I always use an
overall while loop and a stop button to make the functionality
self-contained in the VI.
Test?
LabVIEW does not give the programmer the ablity to force threads to
run on a particular processor. This is handled by the OS. You might
want to read the document, Using LabVIEW to Create Multithreaded VIs
for
Maximum Performance and Reliability, found on the LabVIEW bookshelf
(open LabVIEW >> hel
Hi,
You can download the LV Run-Time Engine you need from this site:
http://digital.ni.com/softlib.nsf/webcategories/85256410006C055586256BBB002C130D?opendocument&node=132070_US
Regards,
Luca
If you've got a while loop that stops after one execution, then you've
coded the termination incorrectly. The run continously mode is really
designed for debug purposes and isn't normally used. You will have
much better control of the program and the sequence if you avoid this
as well as using the
On Tue, 17 Feb 2004 22:03:49 -0300 Daniel Alejandro Moyano wrote:
> Hello!
> I need to apear label in a boolean control botton when it was selectioned. I
> use propertie node of control to do it. But when the label apear, position
> of control change. How can I do? I don't want the position contro
Thanks you so much for your quick reply!!
What is the "Single Step (callable as SubVI)" setting in the State
Diagram Editor good for and why would I want to use it?
First of,
I love the State Diagram Editor! This thing is way cool!
Now my question:
I have read the help and gone through the tutorial and examples.
I am lost as to why any
I need the screen to be saved in the .FP format to save space (not a
jpeg) and saved on my PC. All information is required, such as marker
levels
Hello
Can someone please explain to me what this Pascal line does and if
possible how I could implement it in LabVIEW using the in port and out
port VIs.
the rest of the code is here...
Program serial_adc;
Uses Crt;
Const
combase=$2f8;{ I/O address of the COM port you are using }
M
William Keogh wrote:
>I would like to have a dual monitor setup with a laptop (ie, use the
>laptop screen as the first screen and an external monitor as the second
>screen). Can anyone offer comparisons between such a setup and a
>desktop system with a high performance graphics card? I am concern
Daniel, Simon
This sounds suspiciously like the behaviour of a tip-strip. They're
programmatically settable and appear when you hover over the
control/indicator - will that do what you want?
Blair
-Original Message-
From: Simon Whitaker [mailto:[EMAIL PROTECTED]
Sent: 2004/02/18 09:59
To
It may not be considered a bug, but it is a royal pain in the you know what!
It essentially makes the ability to add color highlighting to changing text
too difficult to be worth the effort in most cases. (in my opinion)
This brings up another problem I've had. Trying to color text in different
Daniel,
You can make the frame transparent using the coloring tool.
-Jim
> -Original Message-
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of Daniel
> Alejandro Moyano
> Sent: Monday, February 16, 2004 3:49 PM
> To: Info-LabVIEW Mailing List
> Subject: Picture.
>
>
At 20:49 -0300 02/16/2004, Daniel Alejandro Moyano wrote:
>I would need to know if it is possible to remove the window case in the
>picture.ctl. I mean, I would like to show a picture less window case.
Color the boarder transparent.
-Scott
Roy,
Yes, you can call the VI used by the App builder:
\project\prodisttool.llb\Dist Load Script.vi
-Jim
> -Original Message-
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED]
> Sent: Tuesday, February 17, 2004 9:32 AM
> To: [EMAIL PROTECTED]
> Subje
Right - of course. There I go spouting off again without thinking first.
Like you say, an append method might make what we desire possible. I still
think we should be able to accomplish something similar using tables and
arrays though.
John Howard
>>> Michael Sachs 02/18/04 12:49AM >>>
Problem
I've been having problems with the forum (I can't see recent posts).
This is why the test.
Without a header file you are in a world of hurt. Try to contact the
manufacturer for that information. Perhaps they can give you an
uncompiled example program.
Once you get the information, look in the Using External Code in
LabVIEW manual found on the LabVIEW bookshelf (open LabVIEW >> help >>
I cannot do much for an explaination--it is just the way the graph
works. I speculate that the cursor is part of the graph but it is
treated separately. By mousing down and moving the cursor, the UI
thread is locked by the cursor code. This prevents other events from
firing like mouse move. If
Page not available - is there somewhere else I can read it?
Hi Ben,
You are correct... Running the VI in highlight execution mode will
drive up CPU usage and make it more difficult to see how the VI is
performing.
Another way to isolate this issue is to "comment out" portions of your
code. Do this by surrounding sections of your block diagram in case
st
try
http://www.geocities.com/gzou999/index.html
Ben
Have you looked at the newer NI compact Fieldpoint hardware? It appears
to be about the same size as the UEI solution.
Bruce
--
Bruce Ammons
Ammons Engineering
www.ammonsengineering.com
(810) 687-4288 Phone
(810) 687-6202 Fax
-Original Message-
I have a 1D array of elements from 1 to 100. each number is repeated
more than once in the array. i want to search the index when a new
number is found for the first time in my array. if my array is
{1,1,1,2,2,2,2,3,3,3,3,3,4,4,5,5,5,5} i want to find the index
when 1,2,3,4,5, are occured f
I am in need of a driver for the hp/agilent 5519/5529 distance
measureing interferometer. I just need to send the final data to
another computer.(easy)
I am trying to create a master program to get data off of muliple
machines with various types of data.
I think using a tcp connection is best, bu
'and' is being used as a bitwise operator, not Boolean. So we are
testing for the single bit at value 16 (0x10). LabVIEW also works the
same way with the AND primitive et al. when you use integers as
arguments.
You should be able to use the Port I/O VIs to do port reading/writing.
Dale,
I am not sure if what you are looking for can be done, but I would
first suggest searching the MSDN library for a function that will
return a user's permissions in Windows. The following link will take
you to the MSDN library:
http://msdn.microsoft.com/library/
You may be interested in th
What would be really great, for LV development on a laptop, is a MXI3
Cardbus card or a firewire to PXI Bus extension.
Tim
-Original Message-
From: David Thomson [mailto:[EMAIL PROTECTED]
Sent: Thursday, 19 February 2004 5:32 a.m.
To: lv >> LabVIEW list; William Keogh
Subject: RE> Dual m
At 15:47 + 02/18/2004, David Macleod wrote:
>Hi there,
>
>I'm a new LabVIEW user and I'm using it in my final year University project (an
>ultrasonic scanner). Basically I am storing an array of data in LabVIEW and I want to
>convert it to a suitable state for the imaging software. The softwa
thanks for your help regarding property nodes
however i have got labview 6i which doesnt open the attched vi(presume
the attached vi works only with labview 7).
if it's possible can u send the same vi compatible with labview 6i.
also i searched for some examples on property node within the
knowledg
At 23:15 -0600 02/16/2004, Greg McKaskle wrote:
>Of course this is one of those
>topics that is difficult to discuss in writing, so please don't use your
>whiney voice when reading it. I'm simply trying to give insight into
>our process.
This process is not unique. One can substitute any large s
Take a look in the Functions/analyze/signal processing/time domain and
select the Derivative x(t).vi. This should do the trick for you.
Good luck.
Dave
What is a .FP format? Is it a generic format or specific to a certain
application?
Tim
"The selfish spirit of commerce ... knows no country, and feels no passion or
principle but that of gain."
-Thomas Jefferson (1743-1826)
Is it possible to load a DAQmx file (*.nce) on MAX programmaticaly in
LabView 7? I know it's work for tradionnal DAQ file (*.daq) with "Set
DAQ default file.vi" but this vi don't work for DAQmx file.
Hello Wayne,
Thank you for contacting National Instruments.
The evaluation version of LabVIEW, when downloaded from the website,
does not include the hardware drivers for instrument control or data
acquisition. You can obtain the necessary drivers one of three ways:
1) If you already have a Dri
Thanks for Ben and Sean to help me solve the CPU problems. I tried
different ways. The symptom still exists. It was intermettent.
Occationally it might work fine.
I have the labview HMI as OPC client talking to Think&Do OPC server. I
have a main screen,which has a few buttons to lead to other scre
Thanks. That worked for me too!
I want to build Two executables and have them installe dby an
installer. the problem that I am having is that the application
builder wants to build one exe for both VI's.
You will have to build one at a time. Build the first one without
creating an installer and then when you build the second, add the
first exe by clicking the Files on the Installer Settings tab and then
click the Add File button
I am unable to find some of the components you used in your example.
I suspect my inexperience with Labview is hindering my efforts.
You should be able to use the cursors to get phase if there isn't a
built in measurment command for this). If you set the start cursor to
some point on channel one and the stop cursor on the same point of
channel 2, the delta t returned should allow you to calculate the
phase difference.
And yes,
I have notice an unusual speed problem in using a wave-form chart control. I have a
chart with several plots on it and a lot of data. As soon as the chart fills speed
goes south and CPU usage skyrockets. However if I make the history buffer 1 larger
than the x scale displayed everything works fa
Scrollbar has many multiple lines in it. Only one item at a time is
programatically selected during a repetitive process. I need to make
the scroll bar move to allow the selected item to always be at center
or is there a better way? As it is now the selected item will go below
the visible range as
I am trying to read the data from the TDS 210 scope and see the data
on the screen. How do I do this?
Can you clarify this more? We don't know how to even write a dll yet.
Hi List,
Not exactly LabVIEW based, but ...
We want to program a PIC chip using a DIO card. The PIC requires that a clock signal
and data (bit) stream be supplied on two of it's pins. The data must be "clocked" in,
in that the data bit must be set before the clock transitions. I understand that
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