About LabView (?)

Hello Everybody!
I'm a freelance/contract programmer... Here in South-Africa there's a
growing demand for LabView developers, so I've a few question before I go
for it (research first!):
1. Where can I buy LabView ? Is there a shareware/trail version avialable
somewhere? Sothat I can try it before buying.
2. What platforms does LabView support ? DOS/Windows/Linux/PalmOS ? I
target: MS Windows, Linux & PalmOS.
3. Everything/Anything that you think I must know...
Appreciate your help !
Regards,
Lennie De Villiers
SYSTEMS DEVELOPER & SOFTWARE CONSULTANT
Tel: +27 82 4455949 Fax: +27 82 131 4455949
Email: [email protected]

Lennie,
Most (if not all) of your questions can be answered by going to National Instrument's site at www.ni.com/labview. There you'll find links to evaluation software, application notes, product brochures, .etc. You can even find the South African sales office. You'll also want to investigate NI's Alliance program which is a network of independent programmers and system integrators. Good luck

Similar Messages

A question about LabVIEW's instinct.

Hello guys:
I have a question about LabVIEW's nature.
Is LabVIEW a language that can realize the operation system(OS) ?
I feel LabVIEW can express my idea intuitively in my mind.
So LabVIEW can help me develop some program rapidly.
I think LabVIEW can do it.
How about your opinion?

Do you mean can LabView read your mind?
Not by itself, external hardware is required.
Jeff
"´^¤j®ü" wrote in message
news:3b05a593@newsgroups....
> Hello guys:
>
> I have a question about LabVIEW's nature.
> Is LabVIEW a language that can realize the operation system(OS) ?
> I feel LabVIEW can express my idea intuitively in my mind.
> So LabVIEW can help me develop some program rapidly.
>
> I think LabVIEW can do it.
>
> How about your opinion?
>
>
>
>

Questions about LabVIEW

Dear support team,
Could someone please respond to Eric's questions? Eric works at Bonneville Power Administration and they are gearing up for another major LabVIEW and DSC project. He may have LabVIEW 7 beta. I am on my way out of town for two weeks and won't have access to phone or email. Thanks!!
Tricia Lee
DSM Inland Northwest
[email protected]
"Pierce, Eric - TNCB-TPP-2"
05/01/2003 08:05 AM
To: [email protected]
cc:
Subject: The list of question i never sent
Sorry for the long delay, things have been very busy here with this new project. I have questions / concerns about the DSC, OPC and LOGOS; first here is our architecture.
We will have two servers running windows 2000 server. Both servers will be live and need to have all DSC components installed. One server is to act as the primary server and the second is to act as a failover server. We have custom components that manage all of our custom services, if one of the custom services stops responding the failover service will shut down all custom services on the primary server and start all of the custom services on the secondary server, thus, the secondary server becomes our primary live server.
My understanding is that we will have to load a *.spf file on each HMI that tells the HMI where the server is, at the same time we need to initialize the DSC and OPC with *spf and *.lpd files. Now I might have the file extensions wrong but the idea is the same. We have all of our data in a SQL 2000 database, how do we make sure that all of the configuration files match the SQL 2000 db? We have several GUI's that can edit the SQL 2000 data, how do we update the DSC / OPC configuration files?
So in short here are my current questions:
How can we manage failover with two live servers
How can we ensure that DSC / OPC / Logos configuration files match the data in SQL 2000?
Does any of this make sense? This labview stuff is very new to me.
Eric Pierce
ACS Group, Inc.
Sr. Software Engineer
w. (360) 619-6284

Hi Eric,
You got it right that once the primary machine goes down, the standby machine detects this, and then loads the appropriate SCF file, etc. Caveat: This would mean however that the hardware in question is accessible by both the machines (it's on an Ethernet, for instance). Any hardware physically connected to the primary machine will obviously be not accessible by the secondary (unless there's a way to have a "Y" connection).
The logging part you mention is not very clear to me. Several questions come to mind: Isn't DSC the logger, logging to its Citadel database? Or, is SQL 2000 the main database? And DSC is logging to SQL 2000? If yes, how? Or is the SQL 2000 querying Citadel and hence getting the data into itself?
Regards,
Khalid

Need advice about Labview and NI certifications

Hi all I am a student. In the process of learning the LABVIEW. I've been working on it for about 3 to 4 months. From internet, examples, tutorials on NI site and now on forum also. Just thought why don't I should ask you people where to start and any books you think will help. My intentions are toward CLAD and then CLD. Any advice. Thanks in Advance.
If I am posting it on wrong board please tell me where to post.
Message Edited by Naqqash_IIEE on 03-13-2009 01:57 PM
Naqqash

As far as books are concerned my three favorites are:
LabVIEW for Everyone
The LabVIEW Sytle Book
A Software Engineering Approach to LabVIEW
I have taken both the CLAD and the CLD exam. A person who has a good understanding of the LabVIEW fundamentals will be able to pass the CLAD exam. To see if you have a good understanding of the fundamentals you should do as Smercurio suggests and take the example tests. To pass the CLD exam you have to have a good understanding of LabVIEW Style, and be able to implement it while writing a program that would normally take 8 hours in 4 hours. With the CLD if you take the available practice exams and pass them (you will have to grade them yourself, which is a good way to brush up on style) then you are probably ready to take the exam. It does not mean that you will pass it though. It seems to me that the time limit is the killer with the CLD.
CLA, CLED, CTD,CPI, LabVIEW Champion
Platinum Alliance Partner
Senior Engineer
Using LV 2013, 2012
Don't forget Kudos for Good Answers, and Mark a solution if your problem is solved.

Question about labview under linux and the using of CIN....

i have a problem with making Code Interface Node (CIN) with labview under LINUX... my goal is to make a CIN that can uses I2C interface (look to libk8000 from hihihihi), but it just work when i'm running it as ROOT ... is there a way to call the cin like as root.... thanks

Hello Mister Pouf,
Can you please explain more your problem? And give more details about it?
Have you receive error message?
Best Regards,
Sanaa TAZI
National Instruments France
Sanaa T.
National Instruments France
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>> http://www.nidays.fr/images/081110_ban_nidays09_468X60.gif

Issues about labview 2009 application builder

first of all, sorry for my poor English ~~~i am not quite sure about whether i could make myself clear for you guys.here it is:
SFX-ZIP archive is choosed as the file format for built-exe in labview 2009.when building any project into exe in labview 2009, you can always turn the suffix of the application file into zip. then use any compress-decompress software to open that file.shocked? right? yes, all the vis that used in your project are there. of course, you can decompress all the vis from the archive.although the block digram is removed during the building process, they still can be dragged into any vi and work perfectly.
this is so insecure both for the application and the source code.how about you?
Message Edited by hunt978 on 05-10-2010 04:16 AM

Double post

Complete information about labview

i m intrested in purchasing labview please give me complete information about it and comprasion to other softwares

A good place to start would be the LabVIEW page at ni.com. There's product information, a guided tour, demos, interactive tutorials, etc.etc.
What is your application? What is your programming background?
The NI developer zone has a collection of comparative information. For example there is a side-by-side comparison of LabVIEW and C code. Another note shows a quick comparison of execution speeds for various tasks.
I'm sure that once you studied the above links you'll have more detailed questions. Just ask here!
Pe
rsonally, I love LabVIEW and haven't had much need to use any other programming tools for the last 8 years.
LabVIEW Champion . Do more with less code and in less time .

About Labview tool kit for Ti's DSP (RTDX buffer size)

Now I am using Labview tool kit for Ti's DSP to
do the RTDX communication between Labview and Ti's 6713DSK. Now I am
encounting a problem that the my Human interface (Labview) works fine in
the first 10 minutes. However after that data looks freeze. The RTDX
become very slow. It's hard to input data or receive data to DSP through
Labview. I am sending 1 Integer 16 bit data and 1 floating data to DSP
using RTDCXwrite vi and the frequency is 33.3Hz. And at the same time I am
transfer 5 integer 16 bit data from DSP to Labview. The frequency is 25Hz.
What's wrong with this? Is that because the buffer for RTDX has been used
up? And how to set up the RTDX buffer in Labview? because I check the vi
about RTDX and can't find a definition about the buffer. This is very
important in my project. Please tell me how to set up the buffer size and
the RTDX work state (continuous mode or discontinuous). Thank you very
much and I am looking forward to hearing from you.

Now I am using winxp, 512Mb RAM, LV version is 7.1. My labview coding and DSP code main function is attached below. Please help me out. I want to transfer 8 16bit integer data. Is it better that I used an array to group these data then transfer this array using only one channel. Compared with using 8 independent channels to transfer them.
Attachments:
HMI_pannel.zip ‏85 KB

Question about labview block diagram

Hi all,
I'm working on labview with fieldpoint modules. Why can't I connect the FieldPoint IO Point Constant directly to the FP Read (Polymorphic)? It says "I connected 2 terminals of different types". But somehow I found some manuals on NI which said these 2 items could actually be connected. I use Labview 7.1.
Regards,
Nicky
Solved!
Go to Solution.

That Fieldpoint Icon looks different from the one I'm used to seeing. Unfortunately, my PC that has 7.1 on it isn't running anymore, so I can't check that far back.
The error tells you something about what it is looking for (cluster of 2 elements). Turn on context help for the Fieldpoint function. Delete the broken wire and right click on the connector input and select Create Constant. With either of those, you should be able to find out some information as to what is required in that "cluster of 2 elements".
Here is what mine looks like. I am curious to know where you got your Fieldpoint function from. Is it from an older version of LabVIEW than 7.1?
What version of Windows are you using? The font that is showing up on your block diagram looks oddly blocky.
Message Edited by Ravens Fan on 05-10-2010 03:56 PM
Attachments:
Example_VI_BD.png ‏10 KB

I am a newer about LabVIEW.How can I realize a remote control in a Web brower.

"To transform your application into a remote laboratory, make sure the VI that you want to publish is loaded into LabVIEW memory. Next, select the Web Publishing Tool option from the Tools menu. This window is the main window for interactively creating and publishing your remote laboratory
The Web publishing tool will automatically load in the Document Title and VI Name text fields. As the sample image in Figure 6 illustrates, the Document Title, Text 1, and Text 2 are all text fields that you can use to customize the Web page created with the publishing tool.
The second step necessary to enable a remote laboratory is to select the Start Web Server button. When pressed, this button activates the built-in LabVIEW Web server, which will publish and control your front panel images from the Internet.
Once the Web server is activated, the actual HTML document needs to be created and saved so it can be accessed remotely. Clicking on Save to Disk places an HTML file called Document Title.htm into the LabVIEW file folder called WWW by default. Saving your Remote Panels HTML documents into this folder will ensure that the LabVIEW Web server can find them. Either keep the default name, or assign a new name and save the file. Once saved, a new panel entitled Document URL pops up with a message box containing the URL address of your enabled LabVIEW application.
Click on OK in the Document URL window and then click on Done in the Web Publishing Tool window. Your lab is now ready for remote visitors
Required Software
To operate a LabVIEW program using remote panels, it is necessary to have the free LabVIEW run-time engine installed on the client computer. When a remote viewer logs onto the lab with the appropriate URL address, the LabVIEW front panel will appear in the browser, or reroute the user to install the run-time engine from the National Instruments Web site.
Application Control
Once connected to the remote laboratory, the client connection will automatically be in a monitor state. If another client is controlling the remote laboratory, the user will be able to monitor the actions of the controlling client. To request control of the program, right click on the front panel and select Request Control. Once selected, one of two possible messages will appear. Either the user will be granted control (Control Granted), or the user will see a message indicating that control is currently granted to another user (Waiting for control: Either the server is locked or another client has control). If another client has control, the controlling client will be notified that control time has now become limited. Once the timeout occurs or the controlling client has released control, application control is automatically switched to the requesting client (Control Granted). Once the user has been granted control, all icons and controls will become active and running the LabVIEW application is exactly like running the application from the local environment.
Releasing Control
When the remote viewer either moves on to a different URL address or relinquishes control by right clicking and selecting (Release Control), or when the remote laboratory times out, the remote laboratory is available to the next visitor."
The above is what I read from a text of ni.com,
but I can not obtain the result.
Thanks a lot!
^^

Hi
I don't see which LV version you are using. It's important to know, that you need the FDS or PDS package of LV 6.1 to work with remote control. This feature is not supported in the LV base package of LV 6.1.
If you have LV 6.1 FDS or PDS, which of the described steps are not working?
Luca P.
Regards,
Luca

What can I do about "LabVIEW load error code 38: Failed to uncompress part of the VI."

While attempting to load an executable LabVIEW application for LabVIEW 2009 SP1 on a Windows-XP machine when the following pop-up message occurs. "LabVIEW: Memory or data structure corrupt. An error occurs in loading VI 'NI_Gmath.lblib: Backward Bracket Search.VI'. LabVIEW load error code 38: Failed to uncompress part of the VI. The VI is most likely corrupt." What seems odd is that the same LabVIEW application loads fine when logged on as a privileged user account, but fails to load on a private user account.
Attachments:
2012-07-18 LabVIEW Load error code 38.jpg ‏1314 KB

Here's a thought:
So when something is decompressed, a temp folder is often used.
I have no idea why LabVIEW would be decompressing anything, but I suspect it is trying to put the decompressed file into a temp folder where the user does not have write permissions.
In the .ini file for your executable, you can add a line that specified the location of the temp folder to use:
tmpdir=C:\Temp
On my Win7 machine, the location is:
C:\Users\MyUserName\AppData\Local\Temp
On WinXP, it is probably:
C:\Documents And Settings\YourUserName\local settings\temp
Try changing the tmpdir key in your ini file to something to C:\Temp and see if that helps.
- john

Question about LabVIEW generated DLL's

Hello,
I want to try programming games in either JAVA or FLASH.
What I want to know is if I can use the LabVIEW generated DDL's for use in my games, without having to need the LabVIEW runtimes installed.
(in other words, are the LabVIEW generated DLL's, stand alone DLL's as generated in for example C/C++ or other programming languages?)
Second, how good is LabVIEW in converting it's code into a DLL. Can I make complicated algorithms, or are just simple functions allowed.
Hope you guys can spare a few words on this topic.
Sincerely,
Heinen
The Enrichment Center is required to remind you that you will be baked, and then there will be cake.

Hello dan_u and thank you for your quick reply.
If the LabVIEW Runtimes are needed to use the DLL's, that is not a good option for me then. I eventually want to distribute my games over the internet, and having to sent the LabVIEW runtimes with the games is just not an option.
To bad, I'm better in programming stuff in LabVIEW then in writen C++ like code.
Sincerely,
Heinen
The Enrichment Center is required to remind you that you will be baked, and then there will be cake.

Queries about LabVIEW PDA

I have a problem with displaying measurment file on the waveform graph in the PDA. I understand that PDA have some function constraints and does not support "Read from measurment file"function. Is there any way to convert the measurment file to a file which the PDA waveform graph able tom display the result or should i replace the "write to measurment file" function to other function e.g write to spreadsheet? How do I include the header,time and date in a spreadsheet heading?

It would probably be best to originally write your data in a tab-delimited format (including labels, time stamps, etc). Then, you can program the Read from Text File function in LabVIEW PDA to mimic the behavior of the Read from Spreadsheet File VI in LabVIEW.
Once you place the Open/Create/Replace File and Read from Text File VIs on your block diagram, you can write click on the Read from Text File VI and select the Read Lines option. Next, scan through each line for tab characters using the Scan String for Tokens VI, and finally build up a 2D array of all elements in your text file. This may sound a bit confusing, so I have attached a small example VI to this post below (PDAReadFromTextFile.vi). Don't forget to use the Close File VI when you are done reading from disk.
Keep in mind that PDAs do not support array indicators, so you must view any front panel data as individual strings (or one large concatenated string). The Index Array function on the Array palette should come in handy here.
I hope this helps!
Casey Weltzin
Applications Engineer
National Instruments
Message Edited by Caseyw on 05-29-2007 09:08 PM
Attachments:
PDAReadFromTextFile.vi ‏21 KB
test.txt ‏1 KB

Need some information about "LabVIEW 5.1 failure in dialog.c line 372" (Windows NT)

I got this error while trying to run a file archiving job on a large number of files. I noticed the memory usage was rising steadily until it finally stopped and then generated this error. Any ideas what could be causing this?

Hello,
That looks like a very old indication of an internal LabVIEW error. The conditions you describe indicate it could be a memory leak - perhaps you are opening many references and not closing them somewhere in your code? Unfortunately, if the problem is in LabVIEW, and not the programming behind your application, I don't think R&D is going to be willing to consider fixing problems found in LabVIEW 5.1 - the product is now in version 8.0.
I hope it turns out to be in your code, and that you're able to fix it by removing a memory leak somewhere!
Best Regards,
JLS
Best,
JLS
Sixclear

Question about LabView 8.0

Installers created from VIs are now compatible with Windows 98, like LabView 6.1?
If not, future version of LabView will be able to create Win98 installers?
With LabView 8.0 can I create smaller installer files?
Thank you in advance.

LV support for windows 98 stopped with version 7.1, so no future version of LabVIEW will support 98, which was replaced over 4 years ago.
The LV run-time engine (which is included with the installer you create) has been getting bigger with every release. When you create the installer, you can choose to remove some of the optional features, which will make the installer size smaller, but not by a great deal. What you can do is instruct users to download the RTE from NI's website and send them only the executable, which will be much smaller than the full installer.
Try to take over the world!

Question about LabVIEW toolkit versions

Hi,
In our systems we have LabVIEW 2012 sp1+ older versions of toolkits such as NI DAQmx (9.7) or NI Flex RIO (13.0 )
I have bought a new system that has all the up to dated toolkit vesrions.For example NI DAQmx (9.9) or NI Flex RIO (13.2). I will install LabVIEW 2012 on this system but I would like to know if I open my VIs in teh system with up to dated drivers then can I open them again in my old systems ( they both use 2012 but driver versions are different) ?
Could you please let me know if I need to re install the old drivers on my new system?
Thanks

tintin_99 wrote:
The problem I have now is I can't install labVIEW 2012 because Runtime engine of 2013 has been insalled on this system. Do I njeed to uninstall 2013 to be able to install 2012?
They should install side-by-side without any issues.
There are only two ways to tell somebody thanks: Kudos and Marked Solutions
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