struggling how to set up 2 daq assist on labview in the same VI

hi all,
hope someone can help me out
I am currently using the scxi 2345 with some SCC FT01 feed through modules, these are just to record some voltages from some transducers.
What I am struggling with is setting up 2 daq assist on a single VI, it is coming back with a error stating specified resouce is reserved and then a window saying learn more about automatic handling. How would I also have these 2 values logged on the same graph or chart?
Anyone any ideas how to set these up.
I ideally want to have 3 daq assist in the same Vi but not sure if this is possible. It would be 1 for thermocouple input and 2 for voltage as stated above
many thanks
shane dover
x9561 (148469)
2/21/2006 10:10:51 AM
comp.lang.labview 35213 articles. 1 followers. vasusachin24 (1) is leader. Post Follow

12 Replies

Similar Articles

[PageSpeed] 53

The way it's usually done is to have a single DAQ Assistant that reads all channels. If, for some reason, you insist on 3 separate DAQ tasks, they would have to run sequentially. You do that by wiring the error in/error out connections together so that one task finishes befor the next one starts.
You can use the Split Signals function on the output of the DAQ Assistant (assuming you have a single DAQ Assistant) to get the separate channels, and then the Merge Signals on the two that want and wire the output of that to your graph/chart.
x9561 (148469)
2/21/2006 3:40:32 PM
Hi Shane and Dennis, 

I've been working my way around the same type of problems, and I am
currently re-writing everything to use on Asst. per board on my PXI
chassis, so that no resources become reserved. 

As a result, I have to separate the signals on the output dynamic data
in order to do different post processing.  So I have been toying
with staying with dynamic data, inputting dyn. data into an array, and
inputing it into a cluster.  It seems that each has advantages and
drawbacks, but arrays seem to be the easiest with which to work when
splitting signals coming from a DAQmx Asst. and funneling some of the
signals into a post-processing sub-VI.  The drawback to this is
that time stamps in the Dyn. Data are lost if you want to record the
data and the time of the reading.  

Question:  Is there an easy way to pipe Dynamic Data into a
calculation subVI?  Is it workable after it's been split from
other streams?  

x9561 (148469)
2/21/2006 3:40:36 PM
Actually, unless I buggered it somehow other, this To/From Dynamic Data
function was the first that I tried.  The problem may occur in
splitting the signals, something that is mandatory if you only use one
assistant per board with several different tasks going through
it.  Once I had converted from dynamic data to any of the choices,
split the signals, and piped into a sub-VI, I lost some of the
information that had originally been with the dynamic data.  I
guess the question should be, "Is there an easy way to split signals
coming from dynamic data of one assistant and maintain the time stamp?" 

x9561 (148469)
2/22/2006 2:10:41 PM
Are you wiring the data to a waveform graph? If so right click on the graph and uncheck the 'ignore time stamp' option?
If this isn't what you are seeing, what do you mean the data is lost? Can you post some code which demonstrates this problem
NIUK & Ireland
x9561 (148469)
2/23/2006 4:40:40 PM
I am plotting to a waveform chart.  Neither the chart nor the
graph give the option of ignoring a time stamp when I right
click.  I have posted the sub-VI that does the graphing.  It
is set up to take in the clustered data, after it was converted from
dynamic data in the main VI that calls this sub-VI. 

Thanks for the input,


Graph Window from 2 Clusters.vi:
http://forums.ni.com/attachments/ni/170/169567/1/Graph Window from 2 Clusters.vi
x9561 (148469)
2/23/2006 10:40:40 PM
Hey Brad
Can you post the vi that this subvi is used in so I can see how and why you are formatting the data in this way.
The data you pass into the subvi is a cluster with just doubles in, your not passing any timestamp data into the subvi so you wont be able to plot this to your chart.
If you post the other vi, I'll look at how to get the timestamp data too!
x9561 (148469)
2/24/2006 9:10:39 AM

Here is the main VI.  There are two other sub-VI's, but they are
just post processing the voltage signals into pressure readings on two
different types of sensors.  The fact that they involve different
types of post-processing and are on the same board is likely the source
of the problem, so if you could think of a creative way to work around
it, that would be great.

x9561 (148469)
2/24/2006 2:10:32 PM
Hello Brad.
Looking at your vi, the reason why you dont have any timestamp data in your charts is because your 'convert from ddt' function is converting the dynamic data into an array of scalar values. This will remove the timestamp and just take the actual Y values (values read). If you want to use the timestamp data then you'll need to specify '1D array to waveform'.
Then you'll be able to index each individual set of data so that you can manipulate the data for each channel, including the timestamp.
I've attached an example that reads from 4 Analog Input channels on Dev1 using the DAQ assistant, then the data is plotted together as dynamic data, also the data is passed through an 'index array' function to allow you to plot each channel individually. 
Please note that on each graph, I have right clicked an unchecked the 'Ignore Timestamp' option, so that the time data is displayed correctly.
I hope this helps

plot to graph.vi:
http://forums.ni.com/attachments/ni/170/170136/1/plot to graph.vi
x9561 (148469)
2/27/2006 3:10:45 PM
Thanks Hannah.  It seemed like an easy fix, but upon changing my
DDT conversion VI to convert to waveform data I still didn't get the
time stamp.  I probed my wires and found that I had the time stamp
after conversion, but not into my post-processing sub-VI.  It is
interesting to me because my sub-VI is so simple - it merely accepts an
input array, calculates pressure from voltage, and outputs an
array.  The time stamp doesn't even make it into the sub-VI, so it
can't be the calculation where I am losing the data.  Is there
something I am missing about adding a subVI?  Do I have to
explicitly tell it to hold the time stamp? 

Here is the sub-VI...


Calculate Ion Gauge Pressure.vi:
http://forums.ni.com/attachments/ni/170/170984/1/Calculate Ion Gauge Pressure.vi
x9561 (148469)
3/2/2006 2:10:38 PM
Hannah and company, 

I have been chipping away at this problem, and I have made some
progress.  The time stamp of the dynamic data was lost in both
data streams at each of two sub-VI's I had written.  One was very
simple, so I simply pasted its "guts" into my main VI, selected it
again, and use the "make SubVI" function under edit.  Now the time
stamp is passed through this subVI.  The other subVI is much more
complicated and pasting it into the main VI is not working (I'm not
sure I understand why).  I still have no time stamp coming through
this one.

Two things - 1) I am interested on ideas on why the time stamp won't
pass through the complicated post-processing subVI (I've attached
it).  2)  I am interested to know, for future reference, why
the creation of a subVI using NI's menu option rather than creating the
subVI from scratch was sufficient to preserve the timestamp data. 

As this post has deviated considerably from the original title of the
thread (which was not even mine), I am going to cross post this


Calc Convectron Pressure.vi:
http://forums.ni.com/attachments/ni/170/171372/1/Calc Convectron Pressure.vi
x9561 (148469)
3/3/2006 9:10:46 PM
Thanks for the input Hannah.  I recieved some good suggestions on
my cross posting
and i now have my time stamp coming through.  As per your
suggestion, I am still confused as how to create an array of waveform
data from thin air.  What I ended up doing was copying one from a
subVI that LabVIEW had created for me.  

x9561 (148469)
3/6/2006 2:11:00 PM
Hi Brad,
I'm not sure what you mean by 'how to create an array of waveform data from thin air' but I think you mean so that you have a constant or a control you can work from or build them from other parts of data (from wires) in your program.
If thats the case, then firstly, you can take a waveform control and put it on your front panel. This can be found on the I/O palette. If you want a waveform constant instead, the easiest way to do this is to create a control and then right click it to change it to a constant. 
If you want to create a waveform from data that you have in wires, i.e on the fly, then you can use the 'build waveform' function. Which you can find on the 'Waveform' palette. This function takes in the following data

<a name="Input3" target="_blank"></a><img src="mk:@MSITStore:C:\Program%20Files\National%20Instruments\LabVIEW%208.0\help\lvwave.chm::/catrn.gif"> 
t0 is the start time of the waveform. 

<a name="Input4" target="_blank"></a><img src="mk:@MSITStore:C:\Program%20Files\National%20Instruments\LabVIEW%208.0\help\lvwave.chm::/cdbl.gif"> 
dt is the time interval between data points in the waveform. 

<a name="Input5" target="_blank"></a><img src="mk:@MSITStore:C:\Program%20Files\National%20Instruments\LabVIEW%208.0\help\lvwave.chm::/c1ddbl.gif"> 
Y  contains the data values of a waveform. 
and gives out a waveform type of data.
I hope this helps. Let me know if you have some more questions.
x9561 (148469)
3/6/2006 2:40:50 PM

Similar Artilces:

How can I run a labview 7.2 vi in labview 8.2
We have several versions of labview running different test and control functions in our facility. There are labview 7.2 VIs in a production setting I wish to reproduce in the test lab. Can I convert them to run on 8.2 or do I have to recreate them in 8.2. I tried to open one in 8.2 and got multiple SubVI's that were not in my program library.. most dealing with AI manipulation. &nbsp; And make sure you have backup copies of your 7.x code. Once you load and save in 8.2, it is a lot of work to get them back to 7.x. Note I used 7.x because I am unaware of LabVIEW version 7.2 even existing. 7.1.1 was the last release prior to 8.0 ...

Time in LabVIEW DAQ Assistant and Write LabVIEW file
Hello all, I would be extremely grateful for your assistance in helping me understand the timing in LabVIEW. Here are the details of the system. The data acquisition is done using&nbsp;a simple LabVIEW 8.2 based program consisting of a DAQ Assistant VI and a Write to Measurement File VI, which writes data in TDM format (binary with XML header). The hardware consists of a 1042Q chassis that contains 2 PXI-6133 cards. 16 transducers are connected to these 8 channel cards. The chassis is connected to a PC by means of MXI-4 fiber optic cable and a PCI-8336 card. &nbsp; I would like to sample all 16 channels simultaneously at 500 kS/s for 2 secs. or 1MS/s for 0.5 secs. When the signals were sampled at 500kS/s x 2secs., the time column looks like this when opened on DIAdem. &nbsp; Serial#&nbsp;&nbsp; Time&nbsp;&nbsp; Time(in secs. when displayed in number format with 8 decimals) 1&nbsp;&nbsp;&nbsp;&nbsp; 07/10/2007 00:09:42.1406&nbsp;&nbsp;&nbsp;&nbsp; 63351158982.14060800 14&nbsp;&nbsp; 07/10/2007 00:09:42.1407&nbsp;&nbsp;&nbsp;&nbsp; 63351158982.14069760 64&nbsp;&nbsp; 07/10/2007 00:09:42.1408&nbsp;&nbsp;&nbsp;&nbsp; 63351158982.14080000 109 07/10/2007 00:09:42.1409&nbsp;&nbsp;&nbsp;&nbsp; 63351158982.14090240 etc. &nbsp; The time does not change from serial 1 to 13, and&nbsp;only at the 14th row does&nbsp;it change, after which it&nbsp;remai...

How to open Labview 8.5 VI in Labview 8.2
Hi I am using LabVIEW 8.2.I found one ook modulation example project(http://decibel.ni.com/content/docs/DOC-1394),it was developed in Labview 8.5.I have to oepn this one in My system mean in Labview 8.2.Please tell procedure.Is it possible or not.?Thnaking you sir. It is not possible directly. Somebody with access to version 8.5 needs to save it for version 8.2. Could you attach that particular vi in your post so that somebody can save it for 8.2 Thanks, Mathan Or you can install Labview 8.5 demo. Works for 30 days.... Hi Mathan,Thanks for your reply.i need OOK Modulation (FPGA).VI and OOK Modulation (HOST).VI in version 8.2Here i am attaching this two vi please save it in version 8.2 and send to me.Thanking you Sreenivasulu.O OOK Modulation.zip: http://forums.ni.com/attachments/ni/170/324620/1/OOK Modulation.zip Hi Sreenivasulu.O, i�m not sure if they are enough, but here they are. :smileyhappy: Mike OOK Modulation (FPGA).vi: http://forums.ni.com/attachments/ni/170/324624/1/OOK Modulation (FPGA).vi OOK Modulation (HOST).vi: http://forums.ni.com/attachments/ni/170/324624/2/OOK Modulation (HOST).vi Hi Mike,i got error like this.Here i am attaching two error image what i got.please check nad correct me.One more "OOK_Pack Bits for transmission.VI"&nbsp; and "OOK_Configuration IF RIO for Transmission.VI" was not found.Thanking you sirSreenivasulu.O ook_error1.JPG: http://forums.ni.com/attachments/ni/170/327671/1/ook_error1.JPG ook_error2...

Labview DAQ Assistant Express VI
Hello i have installed NI PCI-6229 and NIDAQmx. i have also installed Labview evaluation version (planing to purchase it if it works as expected). i am trying to get the DAQ running via Labview. i am going through the "getting started with LabView" guide. i could not find&nbsp; "DAQ Assistant Express VI." in the Labview Function Palette-Express-input palette. could you please inform me whether this is a installation problem and how to rectify it. thanks in advance regards Ruwan ...

Converting LabView 4 vi. to LabView 7 vi.
I have a collection of programs written in LabView 4. I upgraded to LabView 7 recently. I am now trying to open my old 4 vi's with no luck. No block diagram is the error that I'm getting. Any ideas on converting would be greatly appreciated. Chris Without a block diagram, you cannot open a VI in a newer version because the block diagram is required for the recompile. The only way to upgrade is to find the original VIs with the source code. No one, NI included, can recover a block diagram once it has been deleted. Chris Merriman wrote: > I have a collection of programs written...

DAQ assistant with AT-MIO-16E-2 board LabVIEW 7.1
Hi there, I'm just trying to get started with some simple data acquisition, to learn the basics about it and hopefully be able to do more advanced stuff later. &nbsp; I'm running LabVIEW 7.1 on Windows 2000, with an AT-MIO-16E-2 board connected to a NI TBX-68 which currently only has one thermocouple connected on channel 0. When I open MAX, I can see the board and if i press on test panels, i'm able to see the channel and it reacts if I touch the thermocouple. Therefore that seems to be all right. &nbsp; But then if I try to put in the DAQ assistant into a VI and try to set up a task, it always says that 'no supported device could be found'. Does anybody around here know how to go about solving this problem? &nbsp; Thanks a bunch, &nbsp; Fabian Hi Fabian, did you try to program this function by yourself with the DAQmx vi? Maybe this works. Mike Hi Mike, thanks for your quick reply! I don't really know how to go about programming it in the DAQmx vi... can you give me some advice about how to do it? Thanks, Fabian Hi fabian, here is a simple example. Maybe you can change it for your use. Mike Unbenannt 1_LV80.vi: http://forums.ni.com/attachments/ni/170/312984/1/Unbenannt 1_LV80.vi Thanks Mike. Can you save files for older labview versions in labview 8? I'm running 7.1 so can't open it up. :S Hi fabian, sorry for that, here is a picture. Mike Unbenannt.PNG: http://forums.ni.com/attachments/ni/170/312991/1/Unbenannt.PNG ...

If i have a labview .vi file(and labview) but i want to open it in a computer that doesn't have labview, how would i do it??
Okay, i have a made a labview program and save it as.vi. &nbsp; Let's say that it is a program that when opened and you hit run it shows a sine wave. &nbsp; Now if i wanted to open up the program without Labview, ( i don't need to modify it) on a computer that doesn't have labview. How would i go about doing this?? &nbsp; Thanks, K ...

Daq assistant express vi freeze error Labview 7.0 express
Hi, I'm using Labview 7.0&nbsp;express software. I cannot use &nbsp;DAQ assistant because it freezes when I click on it and drag it to the labview page. I have not connected any device so there is no interference. While all other express vi's work DAQ assistant vi doesnot work. Could you please help me? &nbsp; Thank you. Thanks for this quick reply; &nbsp; I checked it and&nbsp;DAQ-mx is already there but the freezing of the DAQ assistant still contiues. I can start the intrument assistant but the DAQ assistant vi does not work. It locks up LABView 7.0 when I try to use it. Hi Caner, It sounds like your DAQmx driver may not have been properly installed, or perhaps that the driver has become corrupted by another installation of driver software.&nbsp; What we can try to do is to repair that DAQmx driver first, which you can do be going to your Control Panel &gt;&gt; Add / Remove Programs &gt;&gt; (change) National Instruments software &gt;&gt; (repair) DAQmx version X.X. If this doesn't fix the problem for you, it'd be worth trying to uninstall the driver completely from the same location (remove), then to reinstall the latest driver.&nbsp; When you reinstall your driver, make sure that you include support for your current version of LabVIEW.&nbsp; I hope this information helps, Daniel L.Applications EngineerNational Instruments ...

Calling a LabView DLL from a Labview VI
Hi, I have a vi that is calling a Labview DLL and they both have a same subVI. If I drop that SubVI into the block diagram first then drop in the Call Library Function Node, when I run the VI, the DLL would not work and it did not give me any error. Does anyone know how fix this problem with Labview? or is there some configuration that I can force the all of that SubVI points into the DLL. Thanks for your help, Dan ...

FPGA sub-vi in LabVIEW 8.2 Project used in multiple top level vi's
Hey All,&nbsp; Thanks for all you help on my last issue. &nbsp; How do I use an FPGA sub-vi in multiple applications without having all the files of the multiple applications in the FPGA sub-vi project? &nbsp; This question has to do with re-using FPGA code in multiple projects.&nbsp; There are&nbsp;3, um, wait, 6, okay, MULTIPLE&nbsp;built applications that use the same FPGA module/sub-vi.&nbsp; Using LabVIEW 8.2, the expanded memory and i/o lines&nbsp;for the FPGA must be assinged in the "Project" (file name.lvproj).&nbsp; I created a sub-vi that interacts with the FPGA code.&nbsp; The sub-vi and the FPGA vi's are all in a single project.&nbsp; I tried to drag the sub-vi to a non-project vi, but got an error message that the new vi wasn't part of the project. &nbsp; As of now the only solutions I can think of is to have one project with multiple&nbsp;top-level&nbsp;vi's&nbsp;inside of it or have multiple projects with duplicate FPGA sub-vi's in them.&nbsp; Either way&nbsp;this is very annoying from a version control standpoint. &nbsp; Thanks in advance for your help, -Andrew &nbsp; Hi Andrew, The best way to do this would be to have multiple projects calling the same subVI, as you stated in your post.&nbsp; There does not seem to be&nbsp;a workaround for this.&nbsp; The reason you are getting an error when dragging your subVI into a non-project VI is because th...

I have installed Switch Exec 2.1, running LabVIEW 8.2 and none of the VI's appear on my functions palette
See Subject Line. &nbsp; Thanks Chris ...

labview 8.2 llb run with labview 8.5
On the PC I have delete labview 8.2, but I dont find the CD for reinstall. I have a .llb file made with labview 8.2, Can i run it with labview 8.5 or download labview 8.2, I muss install ii rapidelly. &nbsp; tks Costello, you can update the VIs within the LLB to LV 8.5 if they do not have their blockdiagram removed.....hope this helps,Norbert How can I update ? When I start the .vi in the lbb he dont found somme .vi located in DAQmx (wrtie.lbb, start task.lbb,...) How can i install this lbb? thks Costello, if you get loading errors when opening one VI from the LLB like you the ones you get, you have missing components.Since you spoke of DAQmx, i asume that you didn't install NI DAQmx on your machine. You should catch that up.hope this helps,Norbert ...

Labview 7.0 Vs Labview 8.2 Issue?
Hello, For a independent study Labview class I'm taking, I am trying to create a program that will input two different wav files and combine parts of them together for audio output. The first file I am trying to cut out the bass lines and replace them with the bass lines from the second file. Kind of like turning the second file into a karaoke version and filling in the vocals with the vocal line from the first file. A second option is simply taking the instrumentals from a song (a wav file containing only the bass line) and adding them to the first file after cutting out the original bass line of the first if this isn't possible. I found the attached file while searching for information/examples as to how to do this - it was originally posted at:http://forums.ni.com/ni/board/message?board.id=170&amp;message.id=74618&amp;requireLogin=FalseI tried running the file in Labview 8.20 and it came back with the error that "Build Screen.vi not found." I have searched for this file to download but have come up with nothing.Also, any tips/pointers/comments (or "there is no way this is possible") are much appreciated and very welcome. I have been searching to see if there is anything like this that has been done before and as of yet haven't been able to find anything. I am pretty new to Labview but I am a quick learner and I have a professor working with me on the project that is very familiar with Labview. However, it's spring break right no...

How start many labview sessions (instances of labview.exe) ? #2
I mean could I start many instances of labview.exe like excel.exe, word.exe,visual basic, .net , ... see my answer in your initial post. ...

Labview 7 crashes when opening an earlier Labview version VI
Hello guys. I am using Labview 7 professional edition. The labview crashes when opening an earlier labview version VI. The error message I'm getting is just "Labview has encounted a problem and eneds to close. We are sorry for the inconvenience." The VI contains a few Tag SubVIs, and It is written with an earlier version of Labview(BridgeView is what it was called). Do anyone have any ideas that how I can fix this bug? It's going to be a great help. Thank you very much. Hello, &nbsp; LabVIEW should not be crashing in this situation. Now, does this happen for other similar VIs too? It could be possible that a particular VI is corrupt.&nbsp;Also could you post your VI here so that I can try and reproduce the problem at my end. &nbsp; Regards, Chetan K Application Engineering National Instruments &nbsp; ...

change a LabVIEW array outside LabVIEW and keep updated in LabVIEW
change a LabVIEW array outside LabVIEW and keep updated in LabVIEW hi, I am Interfacing a FrameGrabber with LabVIEW using a frame grabber SDK(dll). The memory managment of this FG allow you to allocate your own Array and to give a pointer to this Array to the memory manager. Then when you acquire with the frame grabber, the acquired image will be directly accessible in your array. 1.I give to the FG memory manager a pointer to the Labview array through a SDK Dll function. 2. I run the acquisition 3. I display the array My problem is that the Array is allways displayed with it initial val...

Driver paths in Labview no DAQ Assist
Hello, I am new to LabView and I recently installed the student edittion of Labview 8.5. For some unknown, crazy reason i did not install this to the default drive path, ie C:program files\ etc but to another drive on the computer, ie E:.Now the problem is that i need to use the DAQ Assistant for my USB-6008 board. I have installed the the NI drivers which came with it and the board works fine in MAX, recognises it and i can get temp readings from the circuit i built. When I try to use Labview I cannot find the DAQ Assist in the Input section on the palette.Could some please help me. My mate gave me a file he did on his Labview but when i try to load it starts looking for DABmx Control Task and a whole host of other files.Much appreaciated for any help in this matter.Lee Hi Lee Its cool to install things into different places on your drive - sometimes its essential. there is also an easy solution to your problem. What you have at the moment is different drivers and programs spread around your computer with no links to each other so they are unable to reference each other. To create these links yopu will need to mass compile. Within LabVIEW go to the tools menu and then select Advanced&gt;&gt;Mass compile. This will bring up a window that will allow you to select a directory. Select the directory that you have saved all your DAQmx drivers and then select mass compile. This should allow you to see all the VIs in the correct menus within labVIEW. I hope this is of some ...

Labview Sound vi bug #2
Hi Everyone,have found a bug in the labview sound vi's. It is quite a complicated one to explain, but here is my configuration first.I have a dell precision 390, with a built in sound card on the mother board which uses a "SigmaTel High Definition Audio CODEC controller", I also have a PCI sound card installed in PCI slot 5, a M-Audio Delta 1010LT. The M-Audio card is set in windows xp as the default sound card.When I open labview (8.5) and run a little labview program I made to control the sound card (soundTest.vi attached), the program runs but no sound is produced. In fact, the program tells me that the sound card is playing (even though no sound is being produced), and because of the nature of the program it just loops continuously forever (until I hit it with the hammer of the "Abort Execution" button). (Note: The sound card is configured properly using its control panel, and the device ID is the correct one. Also windows tells me that there are no device conflicts. And before starting the labview program, windows is able to play sounds using the sound card. Once I have run this vi and stopped it though, windows is no longer able to make any sounds.)Now here is the funny part. If I close labview completely (the sound card resource is returned to windows control), and I open in windows the Device manager, and disable the SigmaTel CODEC (the onboard card), then Open labview, run the soundTest.vi once (it still doesn't work) and Abort it, then (w...

Re: Are Advantech products and its labview drivers good to work with Labview 7? #2
I have PCL 818L card. Where can I get the Labview drivers for the same Hi QWERTYU, maybe this helps: <a href="http://support.advantech.com.tw/support/DownloadSRDetail.aspx?SR_ID=1-2HYBNJ" target="_blank">http://support.advantech.com.tw/support/DownloadSRDetail.aspx?SR_ID=1-2HYBNJ</a> or this: <a href="http://support.advantech.com.tw/Support/DownloadSearchByProduct2.aspx?keyword=LabView" target="_blank">http://support.advantech.com.tw/Support/DownloadSearchByProduct2.aspx?keyword=LabView</a> MikeMessage Edited by MikeS81 on 05-07-2008 01:11 PM ...

Differences in CIN management between Labview 5.0 and Labview 7.1 ? #2
Hi, &nbsp; I'm using a VI on a two photon microscope. It steers the laser beam in the sample (quite the same way as a TV scan, scanning a fast line on the X axis, then moving the line down)&nbsp;controlling two mirrors by the&nbsp;PCI-MIO-16E-4 Multifunctions card&nbsp;on traditional DAQ and at the same time it serves as the acquitision through a non-NI DSP Multifunction-board with on-board buffers and hight data throughput (70 Mb/s). &nbsp; It is this part of the program which gives us strong headaches since we have upgraded to a new PC. On the old machine we used Win...

Why multihreaded soft worked under Labview 7 but is slower under Labview 8.2.1
Hello all ! &nbsp; I have a multithreated software developped under Labview 7.0. Under this version, multithreading can be enabled/disabled via the&nbsp;options menu&nbsp;/ performance &amp; disk section. This is not present under Labview 8.2.1. &nbsp; My software works properly under LW7 but is slower under LW8.2.1...how can I configure labview and or my vi&nbsp;to make it running as well as&nbsp;under LW7 ??? Is there a "hidden" option to enable/disable multithreading under LW8.2.1 ?&nbsp; &nbsp; Thank you for your help &nbsp; remi To disable multithreading, add ESys.StdNParallel=0 to the ini file. (See: <a href="http://digital.ni.com/public.nsf/websearch/2F606AD236C606008625718E00561A62?OpenDocument" target="_blank">http://digital.ni.com/public.nsf/websearch/2F606AD236C606008625718E00561A62?OpenDocument</a>) However, it is not celar that this is the problem. Did you save the entire hierachy under 8.2.1 after conversion (of course after making sutable backup copines of the 7.0 version ;)). Freshly converted, but not yet saved code runs typically much slower. Also, what do you mean by "slower" 10% slower, 10x slower? How do you measure speed? Thanks for your quick answer altenbach. The tips given at this link will really be useful to me! It seems that I made a wrong conversion of the files...fortunately I made suitable backup of the 7.0 version :smileywink:. I will investigate mor...

Save VI developed in Labview 6.1 to work in Labview 5.1
I have been working with Labview 6.1 but I need to execute my VIs in Labview 5.1 too. What can I do to reuse all the VIs without having to develop them again in Labview 5.1? I am not able to save my VIs as 5.1 from Labview 6.1 It only allows me to save them as Labview 6.0 Thank you! Assuming they can be converted, and there's not too many, you might want to try posting them here for someone to convert. (convert to 6.0 first and zip) Not too elegant but may get you out of a bind. Hello, Yes, each new version of LabVIEW only carries the capability to save for one version previous. So, you would need to save the 6.1 VIs for vesion 6.0, and then from LabVIEW 6.0 save for 5.1. If there aren't too many VIs, one of our engineers here would most likely have no problem with making the conversion for you. You could email NI with them to make it more private, if you'd like, rather than posting them on the site. (To create an email request, go to www.ni.com/ask). Hope this helps! Liz Fausak National Instruments ...

Missing DAQ Assistant in LabView 8.0
Hello, &nbsp; In LabView 7.1 I have the DAQ Assistant under the "Inputs" folder, but in ver 8.0 it is missing. However I do have some DAQ functions in the "Measurement I/O" folder, but not the DAQ Assistant. I have installed the PCI 6601 that I want to use as position controller and general I/O &nbsp; any suggestions? &nbsp; thanks, gert &nbsp; Abhinav, &nbsp; I reinstalled the drivers that came with the PCI 6601, and everything works fine.&nbsp; It seems that Labview 8 has to be installed before the drivers. &nbsp; thanks for your help &nbsp; gert &nbsp; ...

LabVIEW 8.2 -- "unable to locate LabView run-time" error message
I am trying to run a LabVIEW version 8 exe file and keep getting the "Unable to locate" error. I downloaded LabVIEW_8.2_Runtime_Engine.exe from the NI website and installed the entire contents of the distribution. After getting the error, I have tried uninstalling and reinstalling several times, with the same result. Is there some way I can troubleshoot this? Is there a configuration file or a registry entry I can check to see where LabVIEW is looking for the run-time? ...

Web resources about - struggling how to set up 2 daq assist on labview in the same VI - comp.lang.labview

Why Pay-Per-Click Tool Vendors Are Struggling On Facebook
Three years ago, you could drastically reduce your cost per click by just running a ton of ads. The mainstream pay-per-click vendors, experienced ...

Companies struggling with customer satisfaction on Facebook
... today’s customer is turning to a variety of communication vehicles to converse with companies, but according to a recent report they are struggling ...

Obama To 23 Million Struggling Americans: "The Private Sector Is Doing Fine" - YouTube
Obama says the Private sector is doing fine (June 8, 2012).

Shiite Houthi rebels prove godsend for Yemen's struggling Al Qaeda branch - The National
US drone strikes have helped to bolster support for Yemen's troubled AQAP. But the Sunni group's real saviour has been the rise of its arch nemesis, ...

Syrian refugees struggling to survive
For these refugees there is no money for doctors or dentists, no chance of physiotherapy to correct the most basic childhood disabilities. Teeth ...

5 Reasons Why Tesla Is Struggling In China
Tesla got crushed on Wednesday, partially due to Elon Musk breaking the news that Tesla sales in China were “unexpectedly weak” in the fourth ...

China's banks are struggling under debt's shadow
As China's economy stutters, investor confidence in Chinese banks' balance sheets wanes. Recapitalising the banks with more equity will allow ...

Canterbury Bulldogs' Josh Reynolds was taken to hospital after struggling to breathe
Canterbury five-eighth Josh Reynolds was taken to hospital after Thursday night's win against Penrith struggling to breathe following a heavy ...

Canterbury Bulldogs' Josh Reynolds was taken to hospital after struggling to breathe
Canterbury five-eighth Josh Reynolds was taken to hospital after Thursday night's win against Penrith struggling to breathe following a heavy ...

Shots fired Struggling Apple rival slams the new iPhone SE
Ahead of its iPhone SE introduction earlier this week, the last time Apple had released a new smartphone with a 4-inch screen was all the way ...

Resources last updated: 3/29/2016 12:21:59 AM