It works! Thanks a lot.
Board addresses have already been established.
Let me know if you find a VI to do the 1/3 Oct bins.
I like to do the same thing! Thanks
The I32 conversion icon is in Functions Palette -> Numeric ->
Conversion -> To Long Integer. Wire the formula output to the I32
input. The output will be of I32 type.
I am looking to create a testplan generator using labview to help RF
Engineers translate test requirements into test parameters and wanted
to know how i can go about it.
You can put the To Long Integer function (Numeric>Conversion palette).
I use the array to spreadsheet string to take in the data, then I
concatenate the date/time string to the end of the spreadsheet string,
then I use the write characters to file vi. When I look at the data
sheet I saved it under, the data is correct along with the date/time,
but the data needs to b
Hello Carl,
Thank you for contacting National Instruments.
If I understand your situation correctly, you are trying to create the
equivalent of a LabVIEW DLL in Mac OS X.
In the Mac OS world, a shared library is known as a Code Fragment. In
order to create a Code Fragment in Mac OS X, you will
Graham;
Actually, that was the subject of one of the http://www.ni.com/devzone/lvzone/codechallenge6.htm";>LabVIEW
Coding Challenges.
http://www.ni.com/devzone/lvzone/codechallenge6_results.htm";>Check
out the winner.
Regards;
Enrique Vargas
www.visecurity.com
Graham;
Actually, that was the subject of one of the http://www.ni.com/devzone/lvzone/codechallenge6.htm";>LabVIEW
Coding Challenges.
http://www.ni.com/devzone/lvzone/codechallenge6_results.htm";>Check
out the winner.
Regards;
Enrique Vargas
www.visecurity.com
If you are using the 'Write to spreadsheet file.vi' then set the
format connector (on the top of the vi connection in pink). Its a
string with a format
%[–][+][^][0][Width][.Precision][{unit}]Conversion Code
But is your source data to this VI already an integer ?
Perhaps you could post a diagram
Hallo Jan,
nennen wir das HauptVI VI_A und das ungew=FCnschte VI VI_B. Ist VI_B ein
VI an oberster Stelle in der Hierarchie oder ein SubVI? Mu=DF VI_A erst
gestartet werden, dass der Effekt auftritt?
Wenn VI_A erst gestartet werden mu=DF wird VI_B dynamisch geladen. Hier
hilft folgendes:
VI_A lad
William,
I am starting to better understand how you would like your application
to execute. It sounds like if there is a fluctuation in the pressure
of the HPC you would like the VI to pause until you have a chance to
fix the problem and then it should continue when you press the pause
button on t
Here is another link to Microsoft's page about the problem. You may
want to post the issue on their site to see if someone has found a way
to fix the problem since this happems for all applets running in IE.
http://support.microsoft.com/default.aspx?scid=kb;en-us;235239&Product=ie
Hope this helps
I note that the SCC SG04 has a 2.5v excitation voltage and the force
unit indicated is recommended at 10v excitation.
There is a 10v excitation unit which is the SCC SG24.
Anyway with a lower excitation voltage you get less mV output for a
force input which could mean that you loose ability to mea
Hi Thijs,
It's me again. I was hesitating to reply to this Q because I am busy
and answers of this type usually get a one start rating but,
TO h#$l with answer ratings!
You can not do what you are asking with that board with any degree of
determinism.
Now if you wanted to do 10Hz and there was n
Hello Carl,
It looks like you are having trouble writing DLL files using LabVIEW
on Mac OS X. I believe they now call them frameworks under OS X.
First, let=92s make sure you have the necessary software. I=92m assuming
you already have the http://sine.ni.com/apps/we/nioc.vp?cid=3D10732&lang=3DUS
I need to write some known data to the memory of HP8753D so i can
perform a data/memory calculation
I downloaded the drivers for the analyzer but it only has a driver to
write strings. Does anyone has a driver that could help me to write
and plot in screen.
Thanks
The result of formula box is a dynamic data. I need to change the
representation into an integer representation I32. How can I do this?
The result of formula box is a dynamic data. I need to change the
representation into an integer representation I32. How can I do this?
Jose,
I have a 3 PC network with 12 fieldPoint banks. I have problem after
problem with the watchdog settings and flash memory getting corrupted
although my *.iak file never changes. Do you have any of these types
of problems? how do you manage you *.iak files? Does each PC have its
own?
Hello Ninskaya,
Thank you for contacting National Instruments.
I am not seeing your attached VI. If you still need help with this
issue, let me know. Try reposting the VI you are using, and if
possible, provide a little information about the specific instrument
you are trying to communicate wit
In statistics there are always different methods of calculating the
answer.
' There are lies, damm lies and then there are statistics'
Anyway you don't say what method.
You might find the following of interest
Evaluations of some exponentially weighted moving average methods
Sonesson, Christian.
I am graphing continuous temperature measurements, but I only want to
log onto a spreadsheet measurements every hour. How do I do that?
I worked with a LabView Project for a while using LabView 6.1. Than I
installed at the same PC LabView 7.0 and recompiled everything. I
could build applications without any problem over the last 5 months.
Two weeks ago I copied my VIs to another PC with LabView 7.0
installed. After having made chan
Hello Thijs,
Thank you for your inquiry regarding digital output timing. It sounds
like want to use software to write the digital points out at a rate of
1000Hz. When you mention that the wait command is not =93secure=94 I
assume that you mean it creates an output rate that is not accurate.
The wa
I notice in the HELP for Labview 6.1 that there is an example
"buffered handshake output.vi"
I suspect that this might do the job with some jigging of the
configuration
'DESCRIPTION:
This example VI can only be used with boards that support handshaking
such as the 8255 based DIO devices, Lab and
See the other answer and
Labview 6.1
Select HELP | Find Examples | Search
Use the keyword Strain
Select the example
"Continous Strain Measurement"
Now Calibrate as required (suggestions below)
You can simulate the force measurement device if you know the
construction of the device used to measu
Hello,
In order to display Arabic text in LabVIEW, follow the directions on
the following post:
http://digital.ni.com/public.nsf/websearch/A85102C718443B3D86256B13007E559F?OpenDocument";>
Click Here
I hope this helps. Please let me know if I can further assist you.
Best Regards,
Joe Des Rosi
Which he will have available if he installs a loop-back card driver
(comes standard from Microsoft)...
At the beginning of the top-level vi, the port is configured with the
correct settings...however, I found an error in my
programming...inside one of the subVIs, I was closing the VISA
session, and very quickly "re-opening" the port with a Read command
without re-initializing...and this time the por
Hello wewe,
At first glance it looks like your memory error may have something to
do with your for loop that it initializing elt[i] =3D 0. When you
define that struct, you set elt as a single element array. In the for
loop, you are trying to access 500 elements of that array. You are
indexing o
hi, thank you so much! It works for me.
But one more step is, I also need to change the colormap or the
colorvalues property as well (do they need to specify together?) since
like for greyscale, I want to have my 0 value mapping to white and 3.5
value mapping to black. I think maybe I can work this
Do I need to configure the Labjack with the Measurment and Automation
Tool in order to use it and if I do, how would that be done?
It will work fine but still requires TCP for VI Server operation...
To get access to TCP/IP, UDP etc. on a PC without a network card you
can install a virtual network card / loopback card. As far as I
remember you can find it as an option if you try to add a network card
in the add device panel...
We've used this on some occasions to be able to use our tcp/ip base
No Problem!
If it wasn't for the "Big Boys", I would have given up playing in this
sandbox along time ago!
I'll try to rationalize this behaviour in the background.
I'll post if I think of something.
Ben
At 4:25 PM + 3/2/04, Craig Graham wrote:
>From: <[EMAIL PROTECTED]>
> > I have a Labview application which is meant for test and measurement
>> application to test some the units in production,
> > Randomly this application is restarting the system ( running on Win98SE OS
>Ditch that for a sta
If I set the "wasteTime.VI" as sub-routine, the undesirable effect
goes away!
Hmmm - that works for me too. In the real case, the "Object" has a
subVI which has a subVI. I have to set those to subroutine as well,
because a subroutine cannot call a non-subroutine priority VI. But I
think that's O
If I set the "wasteTime.VI" as sub-routine, the undesirable effect
goes away!
I am guessing that on every call of the waste time VI the non-running
VI is checked to see if it wants access to the sub-VI when it is set
for higher priority.
This does not naswer your WHY Q!
I'll watch to see if othe
I use an interface box Advantech ADAM 5000/TCP ethernet ( +/- same
Compact Fieldpoint ) and a 16 analog inputs channels bloc. I generate
a signal from a device, value for this signal is 1.35 Volts by example
or all real voltage ( between 1.xxx and 5. Volts ). I use an
Advantech OPC server. I re
I like INI files, too. If you are looking for an easy way to read and
write your parameters to INI, take a look at the http://openg.org/tiki/tiki-index.php?page=OpenG+Lib%3A+Variant+Configuration+File+IO>Variant
Configuration File IO Library of the http://openg.org/toolkit/>OpenG Toolkit.
I am currently have a table control with column headers and I would
like to have all of the cells of any particular column to have their
widths equal to the number of characters in the header string of that
column Is this possible to do programmatically?
Currently, I see the cell width and height
If the OBJECT is set to: the time is :
RE-ENTRANT - NORMAL - SAME AS CALLER 11.2 mSec
NORMAL - SAME AS CALLER 28.9 mSec
RE-ENTRANT - NORMAL - OTHER1 33.8 mSec
NORMAL - OTHER1 29.2 mSec
All of that with the phony caller (that's not running) set to
Sorry, sorted it. Just noticed a property node reinitializing all the
controls and indicators to default values happening after I changed
the message. Correct execution order has now stopped this
How about if everything is set for the same thread? This would rule
out the thread swapping theory.
--- That's where we came in. I just double checked, and everything is
set to NORMAL - SAME ExeSys AS CALLER (Non re-entrant).
The times are about 11.4 mSec.
If I set the DUMMY priority anywhere abo
Can anyone tell me how to obtain continuous force values? I will be
measuring the compressive force applied to a load cell by an epidural
needle. I am having problems converting the voltage from the load
cell to force units. Any example codes would be greatly appreciated.
Sorry for the distraction but,
How about if everything is set for the same thread? This would rule
out the thread swapping theory.
Please let us know what you find.
Curious,
Ben
Usually, garbage characters are an indication of a baud rate or parity
mismatch, or maybe a stop bit or number of data bits setting. Make
sure that you have configured your port correctly with VISA Configure
Serial Port. I have used VISA serial successfully many times.
I agree the re-entrant doesn't get us anywhere but it does tell us
something.
When re-entrant we have seperate copies of the VI so one instance ends
up in each execution system and there is no need to swap threads.
I suspect the VI just being loaded is enough for force the thread
swaps.
If you s
Is the "object" configured to run in the "Same thread as
caller"?
Yes.
But that doesn't explain (to me) the connection - given that one
execution path is not even running, why is the other penalized?
MORE INFORMATION:
If I make the object RE-ENTRANT, the execution time is back to
"normal", regard
Thanks for the help. Do you see any problems with using the load cell
found at this site: http://www.smdsensors.com/detail_pgs/s400.htm
I will be using it measure the compressive force of an epidural
needle. Thanks again.
Personally, I would store the parameters in an .ini file. In the File
VIs are the Configuration File VIs and they are really good for
reading sections and keys. You could have one large .ini file with a
section for each instrument or you could create an .ini file for each
instrument. Either way, yo
I'd suggest a seperate tab delimited text file to store these as an
array and use "read file" and "spreadsheet string to array" vis to
read the data, then just index and search it correctly to recover the
data, using property nodes to populate the ring controls and other
controls and then "array to
George et al.,
A somewhat dated but functional example of using LV2-style globals to
move GUI code out of the main VI is downloadable from my LabVIEW page
(http://www.SULLutions.com/LabVIEW.html) as, appropriately, "GUI as
SubVI". I don't think there is anything there that others have not
alre
I was setting up the express vi "prompt user for input" and wandered
if it was possible to programmatically change the message like the
"Display Message to User".
I tried converting to a sub_vi and adding a control, wiring it to the
indicator, hiding the control and adding the input to the connecto
I'm creating a test stand that will perform various "standard" tests.
Each of the tests has it's own setpoints (integer numbers) as well as
some string values that are stored in the log file with the data.
What is the easiest way to store these setpoints and strings so that I
can pull them into th
Hi Coastal...
This is just a wild guess.
Is the "object" configured to run in the "Same thread as caller"?
We may be seeing some thread swapping going on here.
Done guessing! Please keep us posted.
Ben
http://exchange.ni.com/servlet/ProcessRequest?RHIVEID=101&RPAGEID=261&HRedirected=True&HUs
What property settings to I need to set in order for VISA Serial Read
to read ASCII exactly like the legacy serial read vi?
I have successfully built a vi which communicates with a piece of
equipment via the serial port using ASCII characters. I am trying to
replace the older versions of Serial R
"Roman Golubovski" <[EMAIL PROTECTED]> said:
>A friend from a TV station would like to set a system for
>continuous 24h (or on-demand) recording of 16 TV channels
>(composite or AV) with professional quality.
Presumably they have heard of tape recorders, they're after a computer-based solution
Urs;
Check my page at www.visecurity.com
Also, make sure you contact me at [EMAIL PROTECTED]
Regards;
Enrique
Do you have an NI GPIB board? If you do, you might want to check the
installation of VISA software and even try doing a re-install. I'm not
sure what the LeCroy software might be doing but another thing to try
is to make sure it's closed and not running when working with MAX.
Usually, there's a VI in the driver called Getting Started. Look for a
palette item called Application Examples and see if it's there.
Depending on who wrote the driver and when, it might be in a different
location. A Getting Started VI is a high level example of using
several of the different func
I am using the 3D parametric surface vi to plot a 3D matrix. It should
be displayed either as a colorgram or greyscale plot, controlled by
the users. But currently it seems like I just can stop running the
program and then manually right click the display area, select the 3D
plot properties to chan
Es w=E4re vielleicht hilfreich das Hauptprogramm mal hier zu
posten..falls es nicht zu riesig ist.
>From the LV 6.1 help files (search "decimal"):
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 peri
You may set the options for LabVIEW to always use the decimal point.
On the menu select Tools>>Options Select the Front Panel Options.
Remove the check mark from the option, =93Use localized decimal point=94.
This option will take effect next time you start LabVIEW.
Note I am fairly certain that t
Wenn LabView gestartet wird und anschlie=DFend das gew=FCnschte VI geladen
wird, so wird au=DFerdem ein VI ge=F6ffnet, welches bereits seit
Ewigkeiten nicht mehr ben=F6tigt wird. Es hat keinen Einflu=DF auf das
Programm. Wo die Verkn=FCpfung mit dem Hauptprogramm liegen soll, ist
mir derzeit schlei
I have two labtop with Labview 6.1 installed.
On one, when I use numeric control, decimal separator is ','. On the
other PC, separator is '.'
I have not been able to find anything related to this configuration.
This make my application fail becasue my instrument need .
Hello,
I got some binary files which I should encrypt/decrypt with LabVIEW.
It seemed to me, that you have here quite what I'm searching for.
Unfortunately I'm unable to open the link above.
Do you have changed the location of your software and where and how
can I find it now?
Thank you very much
I have a user that decided to look for a pattern that is a quarter of
the size of the image in a basically grey image with some very small
contrast differences in the pattern. This was done to verify
consistency (I'm not sure it is a valid test). Most of the time the
pattern is found with a score t
I don't have the NI-CAN drivers installed, so I can't analyse your VI
completly, but my first guess would be, that the CAN Interface of your
second Lenze drive is not configured correctly.
Your first Lenze drive has 1473 as Send-ID for the CAN and 1601 as
Receive ID for the CAN. To control the seco
I don't have any software installed that can handle rar, would help if
you would post a zip
Hi,
You could try using the GetDAQDeviceInformation.vi in the Data
Acquisition>>Calibration and Configuration Palette. Just create a
constant on the info type input and select serial number and wire the
task ID this will then return the serial number in string format.
Hope this helps,
I'm using the simulation interface toolkit V2.0 but it works only the
first time after the installation. When I restart again my computer it
doesn't work any more. Why??
I'm using labview 7 on a pc with windows XP. We are trying to use the
new simulation interface toolkit V2.0. When I inst
How to read Serial number of the DAQ card that is connected to the
system automatically when the VI is running?
I am using Different DAQ cards in every system and I want to display
the DAQ card serial number in the Screen.
Please help me in this regard.
I have to measure responsitivity of solar cell in "short circuit" i.e.
"O Volt" applied. Is it possible to use NI Card for it ?
Hi,
the LabJack cannot be set-up for regular LabView DAQ.
But: There are vis in the LabJack distribution, located somewhere
under C:\Programs\LabJack (look out for ljackuw.llb). There are also
several examples. The vis simply mirror the corresponding c library
functions, as they are described in
Hi Dennis, I'm sorry for all these questions. The clicking of the
right VISA arrow doesn't give me any VISA resource names on my system.
I did a scan with Max which tells me that I don't have any GPIB
connection (which isn't the case), altough when I check on Scope
Explorer it tells me that I'm con
Hi all,
this seems to be a problem for many of us ;-(
I am a member of the 'full control' fraction - I prefer having all
components including from VI.lib in a separate project folder - in order to
limit verrsion influences etc.
In one of my bigger project I created a little VI analyzer tool th
I have installed the required driver and have read through Chapter 16
but I still not sure how to get started.
In Chapter 16, it says that I should begin with Getting Started VI.
Can I know where do I find this command/menu? When I load LabView, I
clicked New Read and Display.
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