thank u very much.
Unfortunately, the VI can't run because an error occurs. "Joes Append
Control Images to Report vi" is missing.
I shall try to understand your example from the block diagram, even if
it doesn't work
This doesn't work. The option you mentioned was not selected, but now
it is. Indicators are not cleared when I open the VI. Maybe because I
don't know what is when you say:
If your subVI is set to open FP when called
My main VI is set to open Front Panel when called. I don't know what
about the
Thank u for your attention. I am sorry, but I have not been able to do
what you suggested. Your picture is nice, but it is impossible for me
to reproduce it because it uses Functions I have never seen (I don't
even know their names...).
Could you please be more precise?
I am a new user.
Do u mean to look at NI Example Finder? I have got LabVIEW 7.0, I have
tried the Search option, but I have not been able to find what you
suggested. It says: "no examples match your searcg criteria"
I would like that graphs and indicators will be resetted when the VI
is open. Is it possible? A control to push at the end of the previous
session could be good, too.
Dear Oleg,
your answer helped me very much.
My question is: how can I optimize the write to file operation, that
is I need something to control file destination name in order to avoid
that puictures are overwritten when I press again the enable button. I
am asking something similar to what is pres
Easy question: is it possible to copy an indicator or a control from
the main Front Panel to the main Front Panel?
This means I don't want to create a new control or indicator in the
Block Diagram; just want to control or check the same function from
different positions in the Front Panel (this is
WONDERFUL!
It is exactly what I need!
Your explanation is what I supposed I had to do. Your example is what
I need. Now I am going to try to add in the Front Panel controls for
PreSamples and Samples and Trigger Channel. I hope to be able to solve
the problem. Actually, I am quite afraid of modifyi
When you use a Trigger&Gate Express VI the Dialog Box Options permits
you to configure the VI. I am asking if it is possible to control
Dialog Box parameters with controls on the Frontal Panel. I am
especially interested on Start Level Threshold.
The question is: have you ever heard that some DAQ VI don't work if
input signal is too low? It seems quite strange.
Acquire N Scans VI (it is an example VI) does't work to collect noise
( no input connected)
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
re
I would like to choose the information saved on the header. Moreover,
headers are perfect if file saved are .lvm and opened with Notepad,
but they are not easy to read and interpret when written as.xls in
order to open file with Excel and try data operations.
N.B. What I do to choose the type of d
Do you mean acquire the trigger and the data together, view both on
the same graph and compare them and compare scans acquired in their
"written" form? How can I do that?
Are you italian? If yes, please help me in our language, or write me
an e-mail
[EMAIL PROTECTED]
hardware, trying trigger selection, untill I found (as you confirm)
that even this one is not a solution...
Thank you for attention, hope to hear from you soon.
Giulia De Bonis
Roma
I have read Data Acquisition and Signal Conditioning Manual and I have
found that my goal is realizing a Reference Trigger. I have got a NI
PXI 4472 device, good for Traditional DAQ, not good for DAQmx. The
problem is that all the examples and exercise in the manual are
suitable for DAQmx applicati
? Do I really have no possibility of doing what I
need and solve my problem with my PXI-4472? You can look at my other
recently posted questions to get an idea of my problem. Thank you and
hope to hear of you soon. Giulia
Read what I have found:
"Pretriggered acquisitions are ultimately finite acquisition."
"Although continuous data acquisition with pretrigger samples is not
an application that is built into the driver or native to the
hardware, it is possibleto code this type of application on MIO
boards."
Is PXI-4
In NI-447X User Manual I have found in "Related documentation"
paragraph the suggestion to read "Traditional NI-DAQ C Reference Help"
for traditional NI-DAQ version7.0 and later. Where can I find this
manual?
Thank u for your attention. I have already tried adding a while loop.
It doesn't work. It continues doing just one data collection. I tried
ContAcq VI, but these example don't produce a "silent" acquisition:
when I add a "write data to file" processing, they write down
everything, not only the numb
thank u for your help, but the vi you suggested doesn't work. It
always gets time out. Does time out mean also that time limit has
exceed, that is trigger has not occurred becuse signal is too fast and
acquisition rate is too slow? More over,what I want is to write data
on file, just the exact numb
I have got a similar problem. My subVI contains controls and I want
them in the Main VI Front Panel. I read your answer, but I can't
manage to solve my problem. I don't know how control references work
and how they can help me. What do you mean by connector pane? (This
could look a stupid question,
You wrote:
<
I assume you are aware that there are waveform file IO functions as
well so unless you need to save the data as text for other reasons you
could feed the waveform to those instead."
>
Can you give me more informatio about this?
My clue is acquiring data and saving it. The file appeare
The type of the source is 1-D array of cluster of 2 elements (source
is "Waveform to XY pairs.vi").
The type of the sink is 1-D array of single [32 bit real( b digit
precision)] (the sink is 1-D Data terminal of "Write to Spreadsheet
File.vi").
Is there something (a data type converter, a merger, a
Suppose I create a VI (main1.vi) that uses a SubVI1. Then, I realize
another version of the main VI, main2.vi, which differ from main1 by
the fact that it uses SubVI2. I don't want to create a new icon,
because there is a slight difference. Just want to associate a new
file and make this associatio
is kind of problems, the key instruction is
"Save a copy without updating callers", isn'it?
Hope you will answer soon,
Giulia
I asked for "Acquire&Process N Scans" vi. Actually, the modification
was in the SubVI "My Data Procesing". I need the original version,
that one with no processing. Thanku!
I accidentally deleted a NI Example for Labview 7.0 (it is
"Acquire&Process N Scans.vi"). How can I get it back again?
The fact is I have modified the vi and saved the modified version over
the default one.
28 matches
Mail list logo
