JoeLabView [EMAIL PROTECTED] wrote in news:5065000500474A0100-
[EMAIL PROTECTED]:
Shakes,
You can post your vi as an attachment in this thread. That way, many
people can help you. :o)
JLV
Be aware that wherever you are posting from/to, this is also sent to
comp.lang.labview as
tmh
Have used hundreds of MFCs from Brooks and
Bronkhurst (Porter) in my LabVIEW applications,
so I'm aware of their functionality.
On this potential new application, it could be that they are not good enough
because the amount of gas could be to small over the time range in question,
so I have
Yes as long as there is no data flow dependancies that stop one call
(e.g. if sub-VI no.2 gets an input that is the output of the first
one). You don't need to stop at 2 either, you can have multiple
windows...as far as it's practical and user friendly.
If i do a set of measurements and i want to save each measurement in
own file is it possible to automatically create filenames? For example
XXX1.vi XXX2.vi ... XXXn.vi
Thx rolf. I can e-mail you the VI if you want. You can send your
e-mail address to me at [EMAIL PROTECTED]
GPIB::XX is wrong, it suppose to be GPIB0::XX or GPIB1:XX. Check
with the manual. If it doesnt sovle the problem, post your vi that
cant work. May be somebody can help here.
Hi All,
One of my clients received the following error on a 3 GHz, 2 GB RAM
Pentium 4 with Windows XP Pro and LabVIEW 6.1/NI-DAQ 7.0:
An exception occurred within the external code called by a Call
Library Node. This may have corrupted LabVIEW's memory.
You should save any work to a new
Hi,
i want to save my data as a text file so that each measurement data
would be in own file and LabVIEW would automatically create filename
for each file. I must do a lots of short measurements and it would be
faster if i don=B4t have to write a new name every time i save.
Hi timohe,
I dont know what you really want to do. If you want to save your
measured data as a text file, there is a lot of option in File I/O
functions. Or if you want to save your front panel image, you can use
property node to get your front panel image. Or you can do the
datalogging of your
Being new to Labview and data acquisition, I've changed a simple RTSI
example VI for 2 E-series boards. I cannot see any difference in VI
execution if I wire the RTSI triggering to the second device (AI
start) or not.How can I be certain that device 2 is really triggered
by RTSI0?
Current setup
Alguien ha intentado realizar una FFT (power spectrum) con el se=F1al
que captamos a trav=E9s de la tarjeta de sonido mediante SND
Readwaveform?
Los resultados que yo obtengo no son correctos!!
Is there a way to communicate between RS232 and LabVIEW? My data can
be collected and displayed via RS232 DB9 port using by Hyper Terminal,
but I want to collect the data by labVIEW directly.Is it possible?If
so, how can I do? Thanks.
Bothe things are easy to do. First, right click on your text b0x and
select CreateProperty Node. Next, right click the property node and
select PropertiesKey
Focus. Make sure the property node is set to write and wire a True
Bollean constant to it. For the OK button, right click and select
Use a porperty node and write a true to the key focus property of the
text control.
If you need the OK button to react to an enter just right click on it,
select advanced and key navigation and set the shortcut to enter.
Instead of using a dialog box to retrive the keyboard input though I
would
yup, that did the job. many thanks.
If I understand correctly, you want to read from two serial ports
where the data arrives at different rates? Just use separate,
independent loops to read from each port. Use queues to send the data
from each loop to where it is needed, which could be another VI or a
third loop in the same VI.
How to use fread in call library function . i am using it to read a
binary file.
If you are having problems compiling, #include stdio.h or whatever the
appropriate header file is that defines the fread function for your
compiler/OS. If you can compile the C code, but can't link, you need to
i want to save my data as a text file so that each measurement data
would be in own file and LabVIEW would automatically create filename
for each file. I must do a lots of short measurements and it would be
faster if i don´t have to write a new name every time i save.
You don't mention which
Is It
Sorry, I never try that before!
Thanks, I try it tomorrow.
I find this pretty surprising. Can you provide us with more
information?
Were you using an instrument driver? What instrument commands were
you sending? What errors did you get?
Thanks.
Brian
I have opened your example and changed the font size of label 2, back
and forth between 14 and 18. The label expanded to the left and did
not overlap with the numerical indicator. When contracting, it
contracted from the left. The anchor point stayed at the right as it
should. I am using LV7.
I'm looking for drivers, manuals or any information really on the following
instruments:
Severn Analytical SA6504 programmable absorbance detector
FIATron FIA-Lite detector
FIATron peristaltic pump
FIATron 8-port valve
Both manufacturers appear to be defunct. Any ideas? Where do the rest of you
The error code means VI_ERROR_INTF_NUM_NCONFIG - The interface type
is valid but the specified interface number is not configured. The
program doesn't like the number (or lack thereof) of the GPIB
interface.
Les
The example I downloaded did not terminate the RTSI connections by
routing the RTSI line used to none after VI completion (Another
example had both master and slave board waiting for a digital trigger
leading to time outs, leading to cross-wired example confusion).
Apparently RTSI connections
Thanks to tbob's comment I have just found the solution to my own
problem: when a label is moved, its anchor point is redetermined: it
must work approximately like this: if the right side of the label is
left of the centre point of the indicator, the anchor point is set to
the right of the label.
Many thanks for trying and can't explain the different behaviour on
your machine. I'm using 7.0 too and even after a cold start of LabVIEW
and loading my own vi from the NI site I get the undesired effect
(stretching to the right instead to the left). Is anybody out there
able to shed some light
My VI bug at the first step of the initialization. When the NI VI
wants to open a new VISA.
I'v try my VI on an other computer,(with the same driver). and then
there was no problems (but it was with LabView 6.1). So I think that
there is something missing on my computer, but I don't know what (the
I tried using the threshold array vi. However, I am expecting the
signal to go high at some point. When I put the threshold vi in a
while loop it returns every index at which the signal is high and the
array that is extremely large. I am wanting to check before and after
the signal goes high
MAX may be more forgiving on GPIB interface numbers - since it has a
list for you to choose from. On the other hand, programs don't assume
default interfaces so you need to be more precise.
Les
Hello,
I use a chart to display up to four waveforms selected from the
listbox. I can also select alarm limits to be displayed for each
individual waveform. Currently, I display these alarm limits by
creating waveforms with Y value equal to the alarm limit. This seems
to be an awkward way of doing
En espanol: Si quieres leer dos puertos seriales en que los datos
llegan a velocidades distintos, la surgerencia es usar dos ciclos
while paralelos y usar queues para transferir los datos de los ciclos
a otro VI o a un tercer ciclo.
Even a simple VI will require the use of the labview run time engine.
Why do you need to run it without that dll?
You can build executable programs by using LabVIEW Application Builder,
which is a separate software from the main engine.
-Fan
Fonsi [EMAIL PROTECTED] wrote in message
news:[EMAIL PROTECTED]
hi,
Is it possible to compile my aplication to executable file, to use
directly in windows, without
An exception occurred within the external code called by a Call
Library Node. This may have corrupted LabVIEW's memory.
You should save any work to a new location and restart LabVIEW.
VI On-line.vi was stopped at node 0x1C94 of subVI AI Buffer Read
(scaled array).vl
Any idea
I am not very certain if you can do it, if you do not have any guess
coefficients. It is a known problem that if the guess coefficients are too
far away from the real values, the fitting can go wild.
However if you have some sort of idea what the coefficients-area,
offset,FWHM and center are, you
I am using the Database Connectivity Toolset, and would like to copy
either one recordset or multiple recordsets from one Access table to a
table in a different database. I would like to do it directly with
the data in variant form, but I can't get it to work. I can get it to
work(on a small
Hi Whuili,
From your block diagram, go to your Functions Palette.
Within that, look under Instrument IO.
First go to VISA, then VISA Advanced.
Place a VISA Open on your block diagram.
Go back to Instrument IO, but this tiome go into Serial. In there you
will find the vi's to configure the
Chuck Lippmeier wrote:
I was just using a Tab control with a lot of only controls on it. I was
just
wishing I could wrap the whole thing in a cluster so I could clean up my
diagram.
You can, however, put a cluster into a tab control... If you just
clustered-up all your controls like you would if
Hi Raffaele,
Thank you for taking the time to compile and send all of those files.
I was able to run your VI and I did get the error you were talking
about. However, I think I narrowed down the problem. It looks like
the file path for the location of the .jpg image was being constructed
Post your vi to the forum and somebody can help you out.
I am interested in building an application that can create a tool that
builds a multi-loop case structure (one within another). I would like
to keep the number of such loops as a parameter that the user can
specify. I would like to know if it is possible to programmatically
create a VI and
Hi,
I want to find Application Builder user manual that can teach me how
to set the Install Settings. For example, I want to know what
libraries will be included in the installer if I enable Serial Port
Support and Port I/O Support. What's the function of Enable ActiveX
server in Application
How to find out the right visa resource name?
you mean com 1,com2 etc or ?
another problem is my program doesnot have error when i run first time
then after somtime it produce error
what si the reason behind this?
Hi,
I have a question about the 5462XX instrument driver. I'm using
LabVIEW7.0 to develop a program for capturing Agilent 54622D waveform
data. However, I can't use the original instrument driver to captrue
wavefrom in Single mode successfully. I found that there is some
problem of the ag546xx
G-Day,
Is there any way you can get the menu (tags or names) as you move the
mouse(selection) though the menu. I want to get the menu tags while I am
moving the mouse over the menu names without clicking.
Thanx
-Sam
Hi all,
I want to programatically change the cluster size value in the Array-to-Cluster
function (when you right click and select Cluster Size..). I have a cluster that I
convert to an array, do some number manipulation, and change back to a cluster. The
problem is I can't seem to find a way
Eric:
No you can't change the cluster size value at runtime. There have to
be a million other ways to do the same thing. My first idea is to uses a
property node for your cluster and get array of references to each
control within it. Using this array, you can read the value property of
each
Eric,
It is not possible yet for the Array to Cluster node to adapt to the size of the
output it is wired to.
However in the OpenG LabVIEW Data Tools, there is a VI Array to VCluster that
converts an array into a variant cluster of the same
size of the array. Wire your array to the input of
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