I/O other increases steadily in labview 8.2.1

The I/O other item in windows task manager increases steadily when a loop is running in labview 8.2.1. Why?
I use labview 8.2.1 and windows xp sp2.But Labview 7.1 is not.

It is a example.
Attachments:
vi1.zip ‏15 KB

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Replicat very slow. having lag that increases steadily

Hi all,
I have 1 extract which has to move 8 tables and 1 replicat. On the source the data is getting updated every 4 minutes and currently around 50K records are changing. What i noticed it that the replicat is not able to keep up with the extracts and the lag keep increasing steadily. Please advise.
I have other extracts on the same server are fine, but they are not accessing tables that are changing so frequently.
Please let me know if more information is needed.

You can come at this a few ways. If this is Oracle you can run an AWR report and you'll probably see that at least one of your tables is performing a full table scan on updates or deletes. If you add this to your replicat and extract param files you can see if your transaction rate is going up or down via the associated report file:
reportcount every 5 minutes, rate
There's also the ggsci "stats" command with the "reportrate" option that you can enter in manually (or via a script) at intervals to see if increased volume corresponds with lag.
Ultimately you'll likely either need to add a unique index or PK to some target tables or break out the slow tables into their own replicat(s).
Good luck,
-joe

Is it possible to invoke other software applications in labview?

Is it possible to invoke other software applications in labview? I would like to upload my files processed in Labview to my web based database. I have no basis of FTP and SQL. Providing that I have no Internet Database Toolkit installed in my computer. So, is it possible to "call" the software in Labview, just like calling a function or sub VI?

Hello kaykeat,
It is definitely possible to call other applications inside LabVIEW. Please see the links below for more help on the most common ways to call external programs.
If the code is a shared library:
Using External Code in LabVIEW
When calling an activeX method:
ActiveX and LabVIEW
ActiveX/COM Overview
Using .NET in LabVIEW:
.NET Support in LabVIEW 7 Express
Hope this helps in development,
Matt F
Keep up to date on the latest PXI news at twitter.com/pxi

I have a iPad 16GB 4G ,when I delete videos or music the 'other' increases by the same amount I just deleted.I don't want to keep restoring it and resetting it ... any other solutions?

If I delete a 1.6Gb video, the 'other' increases by 1.6Gb.How do I fix this permanently?

Sounds like you're trying sync different iTunes libraries on different computers. You can only sync with one at any particular time. If you sync with one and try to do so on another the second will want to delete everything form the first. Can't think of any other reason why what you are doing should be a problem.

Hi, i am looking to set cells so that when one number decreases the other increases. The catch is that when the first number goes up the other stays the same. And when it starts decreasing again the other builds up. so forth

Hi, i am looking to set cells so that when one number decreases the other increases. So say cell A is at 5, and cell B is at 0. When Cell A goes to 4, Cell B goe to 1. The catch is that when Cell A gets down to 1, and i change it to 5 again, Cell B will be on 4 and start incresing from that point on when cell A decreses. This is to show an amount of sales within a company when stock is sold.
Example:
A = 3
B = 0
A = 2
B = 1
A = 1
B = 2
A = 3
B = 2
A = 2
B = 3
A = 1
B = 4
A = 3
B = 4
A = 2
B = 5
Sorry if this sounds confusing.
Many Thanks,
Oliver

Can't be done, in a single cell, for the reasons given by Jerry.
But not difficult in a column:
I've moved the columns one to the right to put them in the body cells of the default Numbers table.
Current stock is listed in column B, with results of increases and decreases entered manually. Any increase is assumed to be a restocking, and does not affect the sales to date figure in column C. Any decrease in stock is regarded as a sale and increases the current total in column C by the amount of the decrease.
Until an entry is made in B, the corresponding cell in B will show a hyphen. This can be changed by changing the text between the quotation marks in the formula.
Enter the formula into C3 and Fill it down the rest of column C.
Regards,
Barry

I am using DNET PCI card from other vendor and using Labview 2013

i am using DNET PCI card from other vendor and using Labview 2013.
is it possible to communicate with this DNET card?
if so how do i find communication visa DNET ?
please inform me how to find DNET examples.
thanks,
san

Hi santh,
I don't think it's possible to use a 3rd party DNET PCI with LV API.

How to receive WM_USER messages from other applications in LabVIEW

I'm trying to receive WM_User messages from LV and from non-LV applications. Using the VIs from NIs Windows Message Queue.llb
it seems to work with standard WM_messages only (e.g. 0x0200 WM_MOUSEMOVE). What I'm looking for is a way to receive
programatically sent messages (by SendMessageA from user32.dll) in LabVIEW.
Are there any ideas or hints?
Greetings
Steffen

Odd_Modem wrote:
I got it to work with
PostMessageA, message 0x8000. It works with occurrence drive or polling
drive. I used U32 for all the function inputs. I used the original dll
and LabVIEW 7.1.1. This, at least, shows that it works between two
windows in the same process.
Stupid me! Of course!
SendMessage waits for the message to be handled and the return value of
the message be provided by the target window before returning.
Apparently Windows has some protection built into SendMessage to avoid
deadlocks by checking if the target window message loop runs in the
same thread as the one calling SendMessage and in that case reverts
possibly to PostMessage for known WM_xxx messages and just simply
returns for unknown messages. If it wouldn't do that you would end up
blocking in SendMessage for indefinite time as it waits for the message
to be handled which never will happen since the thread handling the
message loop is blocking on SendMessage.
PostMessage always places the message in the windows message queue and
returns immediately avoiding possible deadlocks in this way.
Rolf Kalbermatter
Rolf Kalbermatter
CIT Engineering Netherlands
a division of Test & Measurement Solutions

File sizes increase steadily when exporting to Quicktime movies

I have a series of short (90 seconds or so) little segments in a sequence that are very similar to each other that I've just created one after another in the timeline. There are about 50 of these. They are each made up of still frames (a .PSD Photoshop graphic), overlayed text (Premiere text) and audio - no video. As I create each little segment, I'm exporting them to a Quicktime movie (H.264, 50% compression) and the Range set to Work Area Bar to control what gets exported. Although the resulting Quicktime movies play just fine, the problem is that as I get further and further down the timeline creating these movies the resulting Quicktime movie files get larger and larger. The first movie is around 12MB, the second around 16MB, the third around 21MB, and so on until the 50th one is over 400MB. Again, the movies play just fine, but there's no reason I can see that the 50th one is so gigantic (over 400MB in size) compared to the first one (at around 12MB).
This is a Windows XP Pro machine with 4GB RAM using Premiere Pro CS3 3.2.0.

Silly question:
Are you sliding the Work Area Bar down the timeline to cover the new segments, or are you just extending it?

Is there a way to Comunicate with USB device other than VISA using LABView

I have a manufacturer-supplied driver to control my USB device.
Can you show a example of how to talk to my device using the call library function node.
I have a DLL that contains a whole bunch of useful functions that someone else already designed to talk to my device.
I have tried Visa and this just gives errors trying to talk to the device.

Hello,
If you're looking for device information including vendor and product ID, and how windows see's the device, try using USB View - you should be able to download it from http://www.srigc.com/PeakSimple.htm (search the page for usbview and you'll find it quickly).
Best Regards,
JLS
Best,
JLS
Sixclear

IPod Touch, iOS6, "Other" memory increasing every sync?

I have noticed that since the "update" to 6.0, my iPod touch has an increasing amount of "other" memory with every sync. The amount of "other" increases by about 400 mb every time I sync it. Even when I synced it twice in a row with no new podcasts or anything at all that would have been different from the sync just performed.
I restored it from backup, and the "other" memory stayed the same. When it got up to 14 GB, I restored and set up as "new", and the "other" memory dropped back to normal, then immediately started increasing with each sync.
I de-selected the only 2 apps that have updated recently, the only thing I couldn't undo is iOS 6. Other than that, I have done nothing different than I've been doing for the 2+ years I've had it.
Is there something I have set wrong in the settings since it's a touch and not a phone? I didn't change anything when 6 was installed, should I?
I really don't want to have to restore this thing as "new" every month!

Thanks for your reply. I saw those threads and a few others when I searched earlier, but not the one about Safari. I don't use Safari often, but I will try clearing the cache. That's the only one of those things I haven't tried.
I wondered what the "other" was a long time ago, and looked it up. It was behaving normally until recently, after the iOS update, when it started gaining .2-.5 GB per sync. And restoring as "new" didn't stop that, it only reset the "other" to a normal size.
I mainly use this iPod for podcasts & mp3, and watching videos. A few other apps, nothing new added or changed that I could maybe think might be the cause.

Using LabVIEW Web Server in RT for other web applications

I'm looking to find out whether or not I can host other web page technologies (Java Scripts for example) on web pages hosted on a LabVIEW RT target. I'd like to be able to post a configuration or status page on the web server as well as the standard VI Front panel page.
Thanks,
Jason

Hello,
LabVIEW RT Web Server is not meant to be used for other things different from LabVIEW VIs. This feature is not supported.
Ricardo S.
National Instruments.

Can I use a camera for application in Labview and VBAI at the same time ?

Dear all,
I'm trying to save an AVI file with Labview and make an image process with VBAI at the same time, in one machine.
The error : "Camera already in use" displayed.
My Camera is a GIGE and I work with Imaqdx. I've test the multicast mode but it only operate with several machines.
How can I do this ?
Thank's to help me,
Yoann B

I'm not necessarily saying that. It's been a while since I've used VBAI, so I don't remember all of the capabilities, but if VBAI can do the inspection and recording at the same time, you should be fine.
The trick is that only one program can access the camera at the same time. That application reserves the camera, thus making it unavailable to others.
Chris
Certified LabVIEW Architect
Certified TestStand Architect

How to write more than 65536 data in excel Via Labview in one column

I have more than 65536 data and i want to write these data in excel sheet. It is giving Error:-
"Description:-
Error -2146827284 occurred at an unidentified location
This error code is undefined. No one has provided a description for this code, or you might have wired a number that is not an error code to the error code input."
Less than 65536 data can be written....
Please give some solution...

This is not a limitation of LabVIEW writing to a spreadsheet file but a limitation of Microsoft Excel (and also of Notepad) itself.
One option could be, you can switch to Excel 2007 or higher verison...!!
Other solution could be, forget about writing to Excel, instead write in some other format and use LabVIEW your other compatible (with large data) application to read it back.
I am not allergic to Kudos, in fact I love Kudos.
Make your LabVIEW experience more CONVENIENT.

Repeated blue screen crash when running labview 8.2 on Dell optiplex GX620

Hi, I have recently experienced a series of 'blue screen' crashes on a Dell Optiplex GX620 while running Labview 8.2. The dell is running Windows XP SP2 with an ATI Radeon X600 graphics card. Labview is interfacing with a NI DAQPad 6015 device. The computer is a dedicated Labview machine so there is no other third party software that has been installed that could be causing the problem. Also, the computer is one of three identical machines, the only one that has labview installed and the only one that is crashing. Upon rebooting after the first 'blue screen' crash an error report indicated that there was a problem with the ATI graphics driver and suggested updating the driver to the latest version. This was done. Upon rebooting after the second 'blue screen' crash an error report indicated that there was a problem with the RAM. Both of these crashes occurred while running a labview application. A further two incidents have occurred where the computer has restarted for no apparent reason while running a labview application. I was wondering if you were aware of any known issues/incompatibilities with my specific machine and labview 8.2, or if there could be any other known issues with labview that might be causing the crashes. It should also be noted that this is a new setup and these crashes have occurred in relatively short time frame. Thanks for your help!

Hi,
To have a better understanding of what is causing the blue screen crash and the Windows restart, we may need to retrieve the memory dump caused by the crash in Windows XP. Before we actually get into that, we may need to disable Automatic Reboot by Windows when it crashes. I have attached a link that describes how to disable computer reboot after a crash and I have also attached a link of how to retreive the memory dump. Let me know how it goes!
Why Does My Computer Automatically Reboot For No Reason?
How Can I Create a Kernel Memory Dump When Windows Crashes?
(Note that we want to select Complete memory dump, not Kernel Memory dump)
Regards,
Nadim
Applications Engineering
National Instruments

LabVIEW Application throws Error in Run VI Invoke node

Hi All,
We are facing an issue with an application developed from LabVIEW 2010SP1.
Application Description:
In our application, there is a top level VI which tries to run VIs dynamically[using Run VI invoke node] from a particular folder. This folder is like a plugin - not part of Exe. This implies when the top level VI is launched, the plugin VIs under particular folder will not be in memory. When we try to run a VI dynamically from the top level VI, the VI execution works perfectly in LabVIEW development mode.
Problem Faced:
When we created an EXE, it worked well in my PC [LabVIEW is installed]. We created an installer and tested in few other PCs.
[Non LabVIEW PCs – Win XP and 7]. In few PCs it throws the following error, when the plugin VI is run dynamically.
Error 1003 occurred at Invoke Node
Possible reason(s):
LabVIEW: The VI is not executable. Most likely the VI is broken or one of its subVIs cannot be located. Select File>>Open to open the VI and then verify that you are able to run it.
Method Name: Run VI
We tried the following possible ways to find the reason for the issue:
1. Installed LabVIEW - Issue got fixed.
2. Installed .net 2.0 without installing LabVIEW - Issue got fixed.
3. But in one of the Windows 7 [Non - LabVIEW PC] in which .net was already installed, we faced the same error.
Only after installing LabVIEW the error got fixed.
4. When .net 2.0 is uninstalled the EXE itself is broken.
We are not sure what is the Exact reason fo the issue. Anyone faced these kind of issues? Please share the solution. Thanks in advance.
Note:
1. The VIs which are dynamically called is a plugin and not a part of EXE.
2. These plugin VIs have no dependencies from vi library and is completely isolated.
3. We are not using any .net related objects in any of the VIs.
4. The plugin VIs use Call library function node in which a C DLL developed from Microsoft Visual Studio 2010 is used.
Thanks,
Meena
Solved!
Go to Solution.

Error 1003: This clearly indicates that the 'Dynamic VI' is broken and now you should check for the various reasons, why the 'Dynamic VI' is broken.
Also path of 'Dynamic VI' is not a problem.
One thing that you may try is:
-> First open just the 'Dynamic VI' in a new LabVIEW project and check for the 'Dependencies'.
-> Now if any of the item in 'Dependencies', other than what is listed in vi.lib (lets call it 'Dependency.VI'), is also a part of your 'Main Exe', then its a problem. Because when you will execute the 'Main Exe', say in a new computer other than your development computer, it will load all its dependencies including 'Dependency.VI' (and the path will be within the 'Main Exe', but when it will try to (dynamically) load the 'Dynamic VI', this VI will also try to load the same 'Dependency.VI' but from different path and that will cause a conflict. I had experienced this.
-> If thats the issue, you may want to rename (add suffix/prefix) to all dependencies of your 'Dynamic VI' which is common to the 'Main Exe'.
Hope this solves your issue.
I am not allergic to Kudos, in fact I love Kudos.
Make your LabVIEW experience more CONVENIENT.

I/O other increases steadily in labview 8.2.1

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