Vision Acquisition Express VI error

Hello
I am new in labview and I am using the Vision Acquisition Express VI in a while loop. When I run the code, I get an error message " NI-IMAQdx: (Hex 0xBFF69004) Invalid camera session".
Please help me
Attachments:
screenshot.png ‏7 KB
visionacquisition.vi ‏105 KB

Which iteration? If it fails from the very first its likely that the express VI is not configured correctly. If it fails on subsequent iterations there might be a problem using the express VI in a loop (never use express VIs inside loops).
Mike...
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Saving Images Using Vision Acquisition Express

I'm trying to save an Image as a jpg using Vision Acquisition Express. My code looks like this. I am able to view the images and scroll through them afterwards, but when I add the file saving portion, I get an error that says "Error 1074395995 occured at IMAQ WriteBMPFile File not found."
How should I go about Fixing this?
Also, when i was running this before, I was getting a memory error and I couldn't figure out how to clear the memory. I was only able to fix this by scraping my previous script and starting over. I haven't gotten this error so far.
Attachments:
TakingImages.vi ‏156 KB

Hi,
The error you are getting indicates that the file path is invalid. I just set the file path to my desktop and I could save the files. I would double check to make sure the path you specified is valid for the computer you are running it on.
As far as the memory error, it is really hard to say what the cause is. If you aren't getting it anymore then I wouldn't be to concerned.
Regards,
Greg H.
Applications Engineer
National Instruments

Vision Acquisition Express vi stopped working

Hi everyone,
The Vision Acquisition Express vi always worked perfectly on my pc, but suddenly, he stopped working today (I can drop it on the block diagram,but there is no pop-up or something,
I tried the following:
- restart pc (didn't help)
- try other express vi's (including other vision express vi) (worked fine)
- convert it to normal vi (empty vi as result)
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Anyone an idea??
Best Regards,
Henk
Solved!
Go to Solution.

Hi Henk_kempen,
This is really weird. Do you know what has happened to the VI/PC before this happen?
There are some troubleshooting you can try.
1. This problem really close to DAQ assistant issue in this white paper. You might try the method in the link below to see if this solve your problem.
http://digital.ni.com/public.nsf/allkb/5CD79190713D2B558625765F007FCC99
2. Repair the software is another option. It worked in many cases.
3. I try to avoid this but reinstall the software may help in your case.
Best regards,
TuiTui

Vision acquisition express stalls when i select a camera even if i click 'refresh'

The vision acquisition express stalls when i select a camera even if i click 'refresh'. Using Labview 2010 (evaluation) on a Windows 7 laptop and tried on another computer running windows xp.

Hi,
A few questions:
1) What kind of camera are you using? (what model, are you using IMAQ, IMAQdx, what version, etc.)
2) Are you able to acquire from your camera in MAX?
3) can you run a shipping example using the low level VI's or does this only happen in Vision Acquisition Express?
Tejinder Gill
National Instruments
Applications Engineer
Visit ni.com/gettingstarted for step-by-step help in setting up your system.

Vision acquisition error 2147023898

I'm working with a usb3.0 camera to and labview vision acquisition.
I just want to have a simple live image.
in the configuration the image is shown and everything works fine, but when a finish this and run the vi i get an error.
Error -2147023898 and is undefined in labview.
Could someone help me with this problem
in the attacement 2 images show the error and the working configuration
Attachments:
ids acquisition.PNG ‏42 KB

Dont use express vi. Use imaqdx open outside the while loop. Use a snap inside the while loop and use a close outside the loop.

Vision acquisition timeout error

Good day! I do not know what is wrong but my VI suddenly stops with a timeout error. I cannot find the wrong thing. Your help would be much appreciated.
Attachments:
QRCodeReader24vi.vi ‏719 KB

Good day sir! Yes, I only need one image for all of my Vision Assistant's analysis. All of my Vision Assistant has an Extract Single Color Plane VI. After executing the first Vision Assistant, the image produced by the lone Vision Acquisition I left is already extracted to its Single Color Plane. This brings error to my remaining Vision Assistant VI for they cannot extract the image to its single color plane anymore because the image is already converted. Why does this happen? I assured that the Vision Assistants are connected in parallel to the Vision Acquisition, meaning every Vision Assistant is connected to the output of the Vision Acquisition.
Thank you for the tip on using Flat Sequence Structure in my VI. It works and doesn't display any timeout error.
I have an another issue. I put a Play Sound File VI. I am sure that I have put the right path but it displays Error 4805 occurred at Play Sound File.vi that it cannot find the sound file. I tried to do this in a new VI without any while loop or case structure and it works.
Also, can you give me a tip what to use to display a certain image file if for example I typed "a", and another certain image file if I typed "b".
So far, the most important part of my system, the image acquisition is resolved. I owe this to you. Thank you, sir!
I attached a screenshot of the Play Sound File error.
Attachments:
PlaySoundFileError.JPG ‏116 KB

Open cam VI in Main.exe and Vision Acquisition License

Hi,
I've an application which controls some devices...I've two questions:
1. I'm building an exe of my main VI. When I run it as exe on other PCs, it doesn't open the subVI (cam_pos_test.vi) (on my PC is everything running ok). The cam subVI is added in the always included VIs, when I build the application. Part of the main level VI looks like this (control/producer loop):
in the red circle is the subVI which opens the Ref to the cam_subVI. It looks like this:
I think: I make some error in the defining the path of the subVI (cam_pos_test.vi). Do you have some idea, what could be wrong? Why the cam_pos_test does not pop-up as it should on the other machines? :-) I've tested the cam_pos_test.vi as exe is running on other PCs.
2. I've Vision Acquisition License on my PC. Do I need Vision Acquisition License also for the PC where the executable is running (to use a cam)?
Thanks!
Angel

Hi,
I've LabVIEW 2010 Prof. + Vision Acquisition License on my PC (where I write the code). To check: is the problem in the source code or in the executable, I've used an evaluation version of LV2010 on another PC ... as a VI it runs without problems on the lab PC, but as an executable it runs but doesn't open the cam window :-( (everything else is ok)
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Angel
Attachments:
cam_pos_test.vi ‏65 KB

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Hello,
I have download the vision driver and want to use Vision Acquisition function under vision express to get image from my webcamera. The initialization part works well. But after I place the icon on the block panel, I can't find wiring connection points on the icon.Could someboby tell me how to deal with it?
Btw, I am using labview 2013 as well as NI Vision Acquisition Software September 2013.
This is my result.
This is the result I am looking for, how to add stop(F) and Image out below Vision Acquisition.
Thanks in advance!!
Cheers,
Dylan

The Vision Acquisition block looks unconfigured. Do you get an option to configure the express VI? It your license still active. You can go to NI License Manager to check the status.
Matthew Fitzsimons
Certified LabVIEW Architect
LabVIEW 6.1 ... 2013, LVOOP, GOOP, TestStand, DAQ, and Vison

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hello,
I designed code to grab video from an IP camera using IMAQdx and deployed it on a TPC-2512, the app run well but the Image Out shows black screen.
When I run the code on my laptop it works fine (the laptop and TPC are both targets in the same project) and i can see the video from the camera on the TPC using the web browser and when using IMAXdx example app and it also identified on MAX so it's not a connectivity issue.
I also tried to use vision express vision aquisition instead of IMAQdx and it worked on the laptop but not on the TPC (shown black on the image out).
I used LabVIEW 2011 to design the VI on the laptop with NI IMAQdx 3.8.1, the TPC works with LabVIEW Run-time 2011 and NI IMAQdx 3.5 so it might be the problem. The camera I use is AXIS 206 and i enabled free access without password.
I attached a picture of the block diagram.
thanks, Daniel.
Attachments:
IMAQdx test.PNG ‏11 KB

Daniel,
Unfortunately vision acquisition software is not officially supported for Windows XP Embedded. However since all you want to do is display the image, a possible workaround would be to acquire images in the host VI then use network streams to send the images to the Touch Panel to display. Here is a knowledge base article that describes how to send images over network streams. I hope this helps.
Regards,
Isaac S.
Applications Engineer
National Instruments

Multi-Camera-Link Vision Acquisition using .avi

So I'm trying to use two Camera-Link Cameras (JAI CM-200-MCL) with the NI PCIe 1430 frame grabber in order to obtain video of a y-axis tensile testing project, and I'm relatively new to the whole LabVIEW experience. Essentially, I want to be able to capture every image of the testing process, so I can correlate the tensile testing results with specific images using the same sample clock, (e.g. data taken at 30 seconds match the image taken at 30 seconds). I'm trying to put everything together in piece and I already have a fairly stable, working tensile testing program written for LabVIEW 2009. I'm now in the process of using IMAQ (4.4) to track these images and save them as a .avi file. I've provided some sample code -- although it currently isn't working -- that's very simplistic.
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Thanks
Attachments:
Vision Acquisition.vi ‏199 KB

lyncheb,
How accurately do you want your test and images to by synchronized (second, millisecond...)? If you only need to be accurate to around 1 second then software timing would work. However if you need sub milisecond accuracy you will want to use hardware triggering. The 1430 is capable of hardware triggering over a RTSI line. See page 16 (2-4) of the user manual here: http://www.ni.com/pdf/manuals/372016a.pdf
What kind of data are you logging? What hardware / software are you using to log this data?
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Sam K
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WHILE expression giving Error 306, wrong number or types of args in call to

WHILE expression giving Error 306, wrong number or types of args in call to '='
declare
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begin
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exception
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Gus

other than that there are logical errors in this
u hav to use here != with the while loop.
Again loop willl never return to first block.It will stuck at last block and will show error.
For ur question u can use as
declare
     --block_id block;
     --item_id item;
     vc_first_block varchar2(65);
begin
     vc_first_block := :system.cursor_block;
     --block_id := find_block(:system.cursor_block);
     --item_id := find_item(:system.cursor_item);
     message('Current Block: ' || :system.cursor_block || ' Current Item: ' || :system.cursor_item);
     next_block;
     while :system.cursor_block != vc_first_block
     loop
Message was edited by:
jeneesh

Express document error in VF01 while doing individual billing

Hi,
My Functional consultant is getting an "express document error" for the transaction VF01. I checked SM13 and its showing error message as " Error updating table J_1ipart2". How to resolve this issue ?
We are getting express document error only for the individual billing functionality .

Check the following notes:-
1) Note 1178497 - Dr/Cr indicator not updated in Part2 table for CEIV in J1IIN
2) Note 1544355 - Error in updating table J_1IPART2 - J1IV transaction
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Vision acquisition not reading avi file

Hi-- I am currently running LabView 2010 (version 10.0f2) to run the Multi-Worm Tracker (http://sourceforge.net/projects/mwt/).I am currently using the Vision Acquisition Software evaluation version, though I do not have any image acquisition hardware or camera connected; I am only concerned with running AVI files. Everything seems to work perfectly except the program does not appear to "see" the file, even though I am able to select it upon opening without issue.
It appeared to me to run and track images the very first time I ran MWT, though I was not able to see the video at the time. However, it has not worked since that first time. I am curious if anyone out there has thoughts on:
1) Whether or not it is the vision acquisition software that is responsible for this problem
2) If the evaluation version only works once (seems silly as it is good for 30 days... 28 now)
3) What I might be able to do to troubleshoot this
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Kevin Burls
University of Nevada, Reno

-Sorry no info on how you are reading avi file?
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-If you need to clarify your doubt on Vision acquisition, just use one of the inbuilt examples in labview for reading avi files and then proceed.
-No, i think evaluation version works untill evaluation time expires.
-You need to provide the code not exe to troubleshoot on more.
Thanks
uday,
Please Mark the solution as accepted if your problem is solved and help author by clicking on kudoes
Certified LabVIEW Associate Developer (CLAD) Using LV13

Vision acquisition software, library activation

I am having a problem and I would be very grateful if you kindly help me through. I have labview 2011 installed and licensed on my pc, I also installed the ¨vision acquisition software¨ from the Divers CD. Now after a while the vision acquisition library has stopped working and ask for activation. I have bought the vision acquisition software separately and I have the activation code, but I could not find a way to activate the installed library on my pc. I would appreciate if you kindly respond at your earliest convenience.
Solved!
Go to Solution.

Hello,
try locating and running "C:\Program Files (x86)\National Instruments\Shared\License Manager\Bin\nilmUtil.exe".
(x86 on my computer!)
This is the license manager, where you can activate your license. Right click on "Vision Acquisition Software" and activate. Follow the instructions.
Best regards,
K
https://decibel.ni.com/content/blogs/kl3m3n
"Kudos: Users may give one another Kudos on the forums for posts that they found particularly helpful or insightful."

Do i need an updated vision acquisition software with LV 8.5

i have been using LV 7.1 with vision acquisition software installed from cd that came with IMAQ card. i installed a full developement of LV8.5 and when i installed vision acquisition software there are no VIs that show up in the "vision and motion" functions. i need to find IMAQdx functions to read my 1394 IEEE camera.
is this a version issue? what can i do to get tthe 1394 functions in LV8.5.
thanks
NI vision acquisition: version 8.2.3
Labview: version 8.5
Message Edited by arawtry on 09-23-2008 11:14 AM

Dear arawtry,
Yes, this looks like a version issue. You need NI-IMAQdx 3.1 or later, which comes with Vision Acquisition Software 8.5 or later. You can determine version requirements from the following KnowledgeBase article:
NI-IMAQ and NI-IMAQdx Compatibility with Different LabVIEW Versions
http://digital.ni.com/public.nsf/allkb/6B55FF09D1FBD3108625719600650B7C?OpenDocument
I believe downloading and installing the latest version of the Vision Acquisition Sofware should solve your problem:
Vision Acquisition Software 8.6
http://joule.ni.com/nidu/cds/view/p/id/1099/lang/en
Best Regards,
~Nate

Vision Acquisition Express VI error

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