Now that LabVIEW has reached it's 20th anniversary (and NI it's 30th, see <a href="http://www.ni.com/anniversary/" target="_blank">here</a>&nbsp;)) it is time to celebrate and reminisce about the good old days from the LabVIEW infancy. 
&nbsp;
<img src="http://forums.ni.com/attachments/ni/170/164948/1/labview_timeline.jpg"> 
&nbsp;
Does anyone have any cool stories from the very early days of LabVIEW? Share them here! :DMessage Edited by altenbach on 02-02-2006  08:54 AM


labview_timeline.jpg:
http://forums.ni.com/attachments/ni/170/164948/1/labview_timeline.jpg

I don't have any cool stories from the early days of LV since I was busy doing other things (mostly studying).
I do have one question about that timeline, though - wasn't version 1.2 the first commercial release of LV?

tst wrote:I do have one question about that timeline, though - wasn't version 1.2 the first commercial release of LV?


The graphic is straight from <a href="http://www.ni.com/labview/" target="_blank">http://www.ni.com/labview/</a>&nbsp;and does not show any decimal resolution in the version (only x.0). Maybe this was done intentially to keep it simple ;).

The LV timeline (like the Q&R function) only support intergers! :smileywink:
Is anyone else interested in putting together a LV user timeline?
If so just post the LV version and year when you first touched LV.
I first touched LabVIEW 4.0 in 1998.
I wrote an application to adjust single mode fiber fixtures for maximum coupling. The diagram was terible, used the max icon connector pattern and suffered from race conditions, so it had to be reloaded to get it start working again.
I'll compile the results if anyone else replies.
Ben

My first contact with LabVIEW was 2.2 and mostly 2.2.1 when I started
as Application Engineer back in 1992 at NI Switzerland. It was even
before LabVIEW for Windows was anything to talk about to anybody
outside of NI. 

My first impression with LabVIEW was immediately: "Wow, this is how
programming is meant to be done!" but coming from electrical
engineering with electrical schematas this was of course an easy step
for me. 

Rolf Kalbermatter

Ben wrote:
The LV timeline (like the Q&R function) only support intergers! :smileywink:

Now that is the funniest thing I've heard all day.  Stars for you Ben.

I also feel very young now - 6.1 somewhere in 2003. :smileyvery-happy:
When I first set eyes on an LV diagram I said "wow, cool" (may be historically inaccurate). Then, it took me a couple of weeks to get acquainted with the environment. 
After that, I wrote my first app - a local factory wanted an SMS alert service (which is something we had done before) for its ovens and the company making the ovens told them they can't help them. We "analyzed" the system and saw that whenever a new alert is triggered in the system it is written to a log file. I wrote a program which reads the file, recognizes the new errors, builds the proper data structure for our SMS program and sends it to that program. 
Looking back at it, I'm still fairly proud of how good it looks. The UI is clean, sleek and useful, there is documentation everywhere (to the point of saying why a Visible property was used), the diagram is not very big (only a couple of screens wide) and it has a few subVIs, where possible (there wasn't a lot of code repetition, or I would have used more). The only things I don't like about it is that I wired F constants into the while loops stop conditions and that the string parsing is not very smart. Also, an event structure could have been used for the UI loop, but that is a minor detail for such an application.

First used LV2.1.2 for Mac in '92 on a Powerbook 140 ? last used it ? oh, wait it's still ticking, but has regressed to a Mac Classic.

 

 
<img src="http://forums.ni.com/attachments/ni/170/165129/1/LV212.jpg">

&nbsp;

&nbsp;

Nobody ever talked about limiting the size of the block diagram to one screen with the Mac Plus/SE/Classic.Message Edited by Donald on 02-02-2006  08:54 PM


LV212.jpg:
http://forums.ni.com/attachments/ni/170/165129/1/LV212.jpg

The evolution of labview has been a pleasure to watch.  I first used labview 4.0 in late 1997 (wow has it really been almost 10 years) but I didnt quite adopt is until version 5.0 a year later.  Now rarely a day goes buy without writing a vi.  I have been the only programmer in a group of about 10 physicists and chemists (neither of which I am) and have dont all the automation analysis and data handling for our group.  One thing I have seen over the last 8 years is that labview is not accepted as a solution, not just a novelty.  I used to get "well can you do that in C" when now colleagues are familiar with the power of labview and embrace it as a trusted solution to any problem.  I still program in other languages (c#, c, c++ . . ) but I enjoy labview the most.  I cant wait for "labview everywhere" to be realized (labview on a chip).  The next 20 years should keep our careers very interesting.
Paul

Hi: 

Oh!, I can see very experienced people around here!. My first contact
with LabVIEW was with LabVIEW 6.1 at somepoint of 2004. I saw a file
with the extension "vi" in the desktop of a PC in my school and I
couldn't resist to double-click it to see what the hell was that kind
of file I've never seen before. After a few moments LabVIEW appeared in
front of me for the first time ... but I said "Uhh I don't know what's
this, I better close it".

After a month a professor introduced us to LabVIEW and still it wasn't
more than "other" software. It was until I could put my dirty hands on
an Evaluation Copy of LabVIEW 7 that I fall in love with LabVIEW, using
that Evaluation Copy I knew LabVIEW was the ideal Programming Software
for me!

I started in 2000 with Labview  5,0999999999999996  :smileywink:
 
Had been programming a lot in Turbo Pascal before.  Switching proved to be really simple. Tought it myself in a few days.   I still absolutely love Labview.       
 
A few months later I was asked to teach Labview to our students .    Boy, that was an eye opener.  These guys managed to produce the most hideous code you've ever seen.  Things I had never even dreamed about.  I really couldn't believe what kind of mess they made. 
 
The term "spaghetti code" got a whole new meaning with Labview! :smileyvery-happy:

My first encounter with LabVIEW for a project occured in the fall of 1992. I was tasked with building a test system to test a complex module that had multiple analog inputs and provided its output in the form of a digital telemetry stream. I was supposed to build the test system using HPBasic ("we have more people that know it")  rather than the Turbo Pascal that the previous ones. NI did a demo at a hotel near where I worked showcasing "LabVIEW 2.5 for Windows and Unix". I came back and somehow convinced the project lead to let me try it! My first program ended up requiring me to write a driver for a HP control system analyzer (a combination of digital/analog input spectrum Analyzer, sort of). I mistakenly started writing a complete driver, rather than the parts I ultimately needed. Whew, a lot of coding in a completely new "paradigm" (really over-used word in the software world back then). Had other engineers look over my shoulder and comment about being paid to play video games. Used a lot of sequence structures, largest connector pane, etc. I will say in my, Ben's, etc.'s defense that the early examples used a lot of sequence structures. Left printing out of test results to last, how hard can it be, I had done it in Pascal, C and Fortran. Oop's, no way to easily just print out a page of text. When I called support the young lad asked "why do you want to?" I mentioned that my customer (U.S.Navy) wanted hard copies of the results, not just our assurance that it passed! His recommendation was that I build a VI with a text control that fit the entire FP and then just execute a screen print. Unfortunately this was before high speed inkjets or laser printers were common, and cheap, so it meant dumping Mbytes of image to an HP dot matrix printer, a very Loooong process. Quite educational, as was the next project which was supporting a large test system, running 2.2 on a Mac, which took almost 30 minutes to start the program! Literally click on the icon and go get coffee! Ran into that original project lead at an NI Tech symposium a couple of years ago, he had taken the plunge and was "dabbling" in LabVIEW. Commented to me, "Wow, now I understand why your were so psyched about using LabVIEW".
P.S.   Those who remember the early days won't forget to save early and often, lest you loose a bunch of work due to an "Insane Error"!
 
P.M.

Nice try :smileyvery-happy:

It looks like a phospor screen and it definitely is an early Windows
version of LabVIEW, but the Windows XP window decorations make it VERY
unlikely that this is running on a computer with phospor screen :smileyvery-happy:

Rolf Kalbermatter

Maybe Conseils' old computer was just way ahead of its time!
-D

I first used LabVIEW when I went back to school in 1993. We did a project where we had to monitor a pressure sensor and control a compressor. Graphical views, upper and lower pressure limits, etc.
I poked at it off and on in the various versions on my own until LabVIEW 6i. Finally I was at a job where I had to create a program for testing boards in a bed-of-nails tester.
LabVIEW programming is now what I do for a living.
     Rob

Hi
 
My first look on LabVIEW was on my exercises when I was a student on technical university.
I was very short look but I interested in this programing environment. Then I learned LabVIEW in about 6 weeks and I did my first project.
It was software for stand to measure electromagnetic field phenomenon (I know my English is bad ...)
 
It was in 2000. I saw LabVIEW 5.1 and 6i, so I didn't think to much and choose LabVIEW 6i.
 
I'm not proud of my first program (my program style) but it worked. 
After that I did few other projects and now I'm working in LabVIEW 8 and I can't wait what will be next :-)
 
Good luck for every one
 
bogdani

I saw LabVIEW 2.0 demonstrated in 1989, by an NI rep. 
I was impressed by it's connection to a Fluke multimeter, and having the front panel look just like the Fluke.
It hooked me. (I had a background in electronics design).

I then found out that some other folks in my department owned LabVIEW 1.2, but were not using it.

I tried it and found out that you could not move a wired object on the block diagram without disconnecting the wires and re-wiring it.  ICK!
Never did a project with 1.x, but did lots of stuff with 2.0.
I enjoyed taunting the Windows droids with what could be done.

First used LabVIEW back in 1996 (version 4.0).  I built automated
test equipment for in-house circuit testing for a wide range of our
products.  Our location was closed down in 1999, but I heard that
the main office still uses those test fixtures - and they're still
using version 4.0!  I guess no one up there wanted to learn
anything about the systems themselves or LabVIEW - too bad....

My first introduction to LabView was a demo with version 3. After this introduction, I made my first application with LV 4 just after the release of LV4. This was a tester for a small PCB with a microcontroller we produced for one of our customers. The tester, with a bed of nails adapter, was build with SCXI modules and some dedicated hardware.Not enough time to do things the right way and little knowledge how to make a LabView program. Afterwards I think I did al lot of things the wrong way but the tester was in production for many years at the company where I was working at that time and it still is by someone else.

Since then I made different programs mostly for testing.

At work or at home when I need to program something I use LV (except for microcontrollers :smileywink:)

 

First touched LabView6i on Windows in 2003, it was an easy transision from 'C ' to LabVIEW. 
The rapid develoment concept of labVIEW appealed to me the most, Must admit i never did like sitting down an composing/compiling lines and lines of codes.
Since then, LabVIEW has been my first preference for developing all applications.
 

I first started using LabVIEW in 1995.. It was Version 3.0 or maybe 3.1 on a Windows 3.1 machine. Then I used LV3.1 on a WIN95 machine.
 
I even took the Labview Basics and Advanced courses in 1996, Back when Basic was 3 days and Advanced was 2. Ironically I will be taking LV intermediate I and II this year
 
We moved to 4.0 shortly after it was released, then used all the versions up through 6i..  Then I was laid off around the release of LV7 and did not get to use it until last year when we upgraded from 6.01 to 7.1, now I am on LV8.
 
the nice thing is where I work now, I am the ONLY Test Engineer and most of our newer test prorgrams running are in LV8.
 
 
 

Jean-Pierre Drolet wrote:
I started using LabVIEW near Roswell in 1947. Back then we scanvenged it from a computer in the wreckage but it is not until we could reproduce what has become the 68000 and the 3� drive that it spreaded through human technology. 



JPD on the left? :)
 
<img src="http://forums.ni.com/attachments/ni/170/166595/1/MIB.jpg"> Message Edited by altenbach on 02-09-2006  11:32 AM


MIB.jpg:
http://forums.ni.com/attachments/ni/170/166595/1/MIB.jpg

No, sorry, Christian. You have the wrong picture. That's agent K.
I believe you meant to post this picture.
<img src="http://forums.ni.com/attachments/ni/170/166618/1/JP-MIB.jpg"><a href="http://forums.ni.com/attachments/ni/170/166618/1/JP-MIB.jpg" target="_blank"></a>


JP-MIB.jpg:
http://forums.ni.com/attachments/ni/170/166618/1/JP-MIB.jpg

 
Not having globals wasn't too bad, but when crossing wires suddenly broke and became the same wire,  with no undo, that kinda sucked.  Hey, ever since bundle/unbundle by name, it's been gravy!
 
Happy B-Day LabVIEW  !!!
 
 - and thanks for giving me a livelyhood. :smileyhappy:Message Edited by Dynamik on 03-08-2006  03:04 AM

I've been a user of LV since 1986.  I don't remember what the first version I had was, but a bundle from NI containing 1.2 came just days after whatever my original copy was came.  About a dozen blue floppy disks!  So, 1.2 or something earlier, who knows.
We ran it on Macs, of course-- 128k with some sort of RAM upgrade and a GPIB card, then the SE, then the IIci and IIcx (marvelous machines, truly the high-water mark for package design of a desktop PC).  Later, I beta tested LV 2 and got featured in an ad, with a quote right next to one from John Fluke!  
Eventually, my group beta'd version 3 for both the PC and the Mac.  Along the way, we received a patent for an automated alignment approach for lining up lasers, cavities and optical fibers-- first patent to cite a LabVIEW example, in fact.  The USPTO patent examiner initially rejected the example, saying that patent office rules required a textual description of embodiments rather than pictorial, and so we were ordered to replace the "flow chart" with the equivalent source code!  The company attorney and I had to go before the three-judge board of appeals in Washington DC to straighten that out.  In fact, the attorney was going down in flames, so I interrupted and asked if I could approach the bench, then gave a demonstration of how to build a VI on my PowerBook.  The judges got the point, and the LV code stayed in the patent.
LV 4 might well have been my favorite, with its built-in compiler and compact executables.  Sigh.  But I can't imagine life without some of the goodies in the later releases and LV FPGA.  
 
 
 
 

scoobydoo wrote:Back in the early 1990's
I was given a copy of Labview and told to build a system to monitor temperatures
and airfows.  Now, this was in the days of DOS and floppy disks.  So I sat
down with the stack of floppies and spent the better part of the day running
the install [snip ]..... [snip]   I think promptly put all
the floppys back into the labview box, put the box back on the shelf, grabbed
the box that contained my trusty Borland C compiler; spent the rest of the
day feeding Borland floppys to my PC, and built the system from scratch.A couple of points:1. LabVIEW was never a DOS program.2. Borland DOS programs don't work on modern computers because of the timer check function. LV does not have this problem.3. I thought that MSC 5.1 was the stable one, not Borland.4. The Borland compiler is free on the web. LabVIEW costs $2K. Money follows value.

No, sorry, I must have been unclear.
LabVIEW was originally all-Mac.  It was then ported to Windows 3.1, IIRC, in its own version 3.  
Never DOS.  Never!
LabWindows was the DOS thing.  It was originally a menued shell for a subset of C and QuickBASIC.  In later years the QuickBASIC half got jettisoned and the full ANSI C (or something very close to it) was supported.
Tidbit: I seem to recall a story, perhaps an urband legend, that Microsoft had to come to some sort of legal accommodation with NI for the use of the tradename "Windows", since LabWindows was an established product long before Windows was a gleam in Bill Gates' larcenous little eyes.  
Anyway, LabWindows was a DOS program, had nothing to do with Windows, and LabVIEW never had anything to do with DOS, and I don't see how a LabVIEW malfunction (or an installer malfunction) could've gotten anyone to a c: prompt... might be possible (when it comes to software malfunctions on PCs, nothing would surprise me!), but I've flogged eight generations of LabVIEW including several betas, on both PCs and Macs, and never saw such a result.  
 
 

Geez, you guys sure know how to throw a wrench into a story. I didn't think it was that important - just thought it was mildly amusing. 



 
You gotta understand, LabVIEW isn't software, it's almost a religion!
...Hm, in fact, my code sometimes looks remarkably like the Flying Spaghetti Monster... coincidence?  I think not!

Have to throw my comments in here!
 
 
"LabVIEW was originally all-Mac.  It was then ported to Windows 3.1, IIRC, in its own version 3"       Almost correct. The first available PC version was released in the fall of '92 and was version 2.5. It was followed almost immediately by the bug fixes 2.5.1 and 2.5.2. I have the original pretty blue floppies. In those days you told NI which of their existing instruments drivers you also wanted and they sent them on floppies as well. You could, if you had internet access, which was pretty rare (not World Wide Web yet), ftp files from NI, either their custom bug patch to fix a problem you had reported, or to download additional drivers, etc. Their support was pretty great, not very many NI folks yet, smaller company and you knew a lot of them by name after a few calls for support. And you did call for support! 2.5.2 crashed regularly with the infamous, and now much rarer "Insane Error" which we decided meant that it would drive you quickly insane. It seemed to happen most often after a couple of hours of really intense coding, where you hadn't stopped to save your file! Life was exciting then!
 
P.M.

Scott Jordan wrote:
Tidbit: I seem to recall a story, perhaps an urband legend, that
Microsoft had to come to some sort of legal accommodation with NI for
the use of the tradename "Windows", since LabWindows was an established
product long before Windows was a gleam in Bill Gates' larcenous little
eyes.It's not an urban legend. Microsoft got NI to
agree to a software license deal where NI would get for a very
substantial amount of money all kinds of MS software including Windows,
Office. etc. in exchange for NI not trying to shutdown Windows as a
name. As far as I know that never really was their intentions anyhow,
and the whole story might have been in fact rolled up by MS trying to
get NI to not use LabWindows as product name anymore.

And in hindsight it was maybe the smartest move MS could have done in
respect to NI. It certainly put lots and lots of MS software into a
company that was at that time still heavily Mac operated. This might as
well have been one of the reasons Mac support has played a rather small
role in the last few years at NI.

Rolf Kalbermatter

Looks like I'm arriving unfashionably late to this party of reminiscences.
I first saw a demo copy of LV for Windows, and I forget whether it was 2.5.2 or 3, probably in '93.  At the time, I was hip-deep in a coding project for monitoring a roomful of anesthesia machines undergoing a run-in test.  I was using MSC6 under DOS, and had created my own simple GUI in "graphics mode" (anybody else remember doing this.. changing the display mode from text to graphics on a PC?).  It took me forever to finish that project (though I did, and it worked), after I found a freeware task manager called CTask which allowed me to structure the code in such a way that I could manage all the time-critical bits.
 
Anyway, back to the LV demo.  A couple of us looked at the demo and said something along the lines of, "Nah..... that's a toy!  We're REAL programmers here, we write complicated apps in C that you couldn't possibly do with that stuff!"
 
Sigh.  If only, if only...
 
Fast forward a couple of jobs later, in '97.  I got dropped into a position where they'd paid for the three-day Basics I class (the guy I replaced had left in the meantime, and the LV4.1 box was still sitting unopened on his/my desk).  So, I got the training, had a worthwhile project to dig into (I had some consulting help, thank goodness), and never looked back.
That was at L-3 in Camden, NJ.  I moved south about a year later, bringing my "vast LV experience :smileytongue:"  to Respironics, and have been enjoying each new release ever since.
DaveMessage Edited by David Boyd on 03-31-2006  06:24 PM

" 
 (anybody else remember doing this.. changing the display mode from text to graphics on a PC?).
" 
....back when changing it to graphics mode gave you up to 16 colors,:smileysurprised:
 with any 4 at one time :smileysad:
and the mouse driver was often commented out of autoexec.bat because what good was a mouse anyway, it kills the cpu:smileymad:
and the internet is interesting but who want to spend all their time ftp'ing files
and PC had the option for two floppy drives because the OS took up one .....
Ben

CC wrote
 
" 
And can you remember how fast was the CPU and what were the OS and RAM sizes ? 
" 
 
NO I can't answer with confidence any of those questions. :smileysad:
 
I THINK
 
1.2 Mhz CPU (IBM PC upgrade to PC-AT) had a connector on the back for "Casette" storage.
 
DOS 2.1 (?)
 
64 128 or 256K (?) My first guess would be 64K.
 
Failing memory make me repeat, these are my best guesses of the spec of the frist "IBM-PC" that I payed with.
 
Do these numbers seem right?
 
What are your memories of that period when...
 
Q: Do you want a color monitor with that PC?
A: Yes!
Q: Would you prefer green or amber?
 
:smileysurprised:
 
was the norm?
 
Ben

Hi,
My first experience with LabVIEW was with Version 6.1 student edition. The project given to me as a trainee in the DRDO Research Centre, India was to try and communicate with a 7 ft. tall device with a VXI fitted. The instrument was a 1995 make with no support for LabVIEW. I just had a C code which could communicate with the Device. Moreover the supporting PC card worked on 1553 bus. It was a bad experience trying to communicate with the device. It almost looked like "Programming the Impossible". But in doing the project I learnt LabVIEW in a better way than I would have if given all the drivers for the device. Great experience!!!
Regards,
Giridhar Rajan
Automation Engineer, Design
Cruiser Controls
Mumbai, India

Putnam wrote;
" 
The original IBM-PC had a clock speed of 4.77MHz on a 8088 processor.
" 
 
That was what my wife said and I made the misatke of not listening!
 
When will Rule #1 ever sink in?
 
Ben

Guys n Gals,
The discussion seems to have gone a bit off topic. But its nice to sometimes discuss other things too like the one goin on here. Great going LabVIEWers. We're all enjoyin it.
Regards,
Giridhar Rajan
Automation Engineer, Design
Cruiser Controls
Mumbai, India

Hi LabVIEW :)
 
I started with LV5.1
I did not catch up when you were born, but I am catching you up since you were 5.1 ;)
 
Congrates & Cheers!
ian
<a href="mailto:ian_fung@yahoo.com" target="_blank">ian_fung@yahoo.com</a> 
Singapore
&nbsp;

Hi
The only thing you need to do is to monitor temperature,voltage and pressure and you get a goo feeling when a battery is charged.
You could go in with a high current and drop that when the battery is charged.
Be sure to monitor each battery and do not use sets of batteries.
good luck
(buying is less fun but probably cheaper)

thanks for the reply! 
i ahev values of the volatges and currents.and temperatures.

i take the values of the voltages and currents from chargecontoller and write a program in LV to charge a battery

i wonder there how can i give  the output of the LV to battery.

twilight wrote:i wonder there how can i give  the output of the LV to battery.


I would highly recommend that you start a new thread for a new problem. This has very little to do with "LabVIEW at 20!" :)
(Actually, we already went over this, see our earlier discussion: <a href="http://forums.ni.com/ni/board/message?board.id=170&amp;message.id=181514#M181514" target="_blank"> http://forums.ni.com/ni/board/message?board.id=170&amp;message.id=181514#M181514</a> &nbsp;)
Good luck!

Yeah. So we're supposed to discuss how we first interacted with LabView here right?
 
Well, it was a dark and rainy night at the monestary... <thundercrash, boom, thundercrash>... Labview and I were alone near the front pew and all the candles had blown out from the gusting winds.  I didn't want to do it, really I didn't, but it was dark, I had nowhere to go, and Labview told me I didn't have a choice.  Everything after that was kinda fuzzy...
Next thing I knew, I was waking up in the dumpster behind the monestary with .VIs spewing outta my A$$, and the strange ability to dynamically manipulate loops and variables, if thens and else's, without typing a single line.  
I have vowed since then to seek my vengance, that was 7 years ago....
 
:)
 
 

Started in 1989 at the Kennedy Space Center. I was teaching myself C and hating it since I am so slow on the keyboard. It was just the start of using PCs for conrol and the like. We were doing a lot of studying of packaged control software and they all were disapointing. I found a LV Ver 1.2 under someone's desk and the rest is history. The Shuttles started leaking hydrogen that summer and myself and 2 techs built an instrument that found the leaks in 10 days. I wrote the code in Laview. Even got a write up in Macworld. The NI guys were increadably supportive. Thanks Tony and Greg, you know who you are. Well, I've had a good carreer thanks to NI. I've been through the "that's a toy, not a real language" stuff for years and I still get a kick out of stuffing it in their faces.
Dave Wedekind

Hi please see my post from a few min ago under "RSA",
Question:  How do I integrate a formula using the integral x(t).vi?
From what I've read I think you could help.
Sorry for interfering with this post.
Thanks
Cheers
Andreas

As Mr. Altenbach has pointed out to a previous poster, this thread is thoughts about LabVIEW at 20, not for answering other "assistance" type questions. Posting here will most likely just get annoyed responses, won't speed up a reply to your other thread. Those who will be most helpful in trying to answer your other thread may or may not see your question here, but will most likely not help you. Why would you (or the others) feel that posting a question about PDA's or battery chargers, or whatever, to this thread would be appropriate? The experienced LabVIEWers that look at this thread look at the others as well.
 
See what happens if I answer a post before my first morning coffee!
 
 
 Message Edited by LV_Pro on 05-24-2006  09:50 AM

Me too guys... Chill..     was new to this..
sorry.

If RSA happens to still be looking in this thread I apologize for my excessive annoyance yesterday, will blame it on a combination of coming down with a bad cold, no coffee, and any number of things that caused me to vent to/at the wrong people. I'm sorry for "snapping" at you, and hope that you were able to get answers helping you resolve your problem from somebody that wasn't being a grump!
 
 
 

Hey Giridhar,
 
Your mail goes on to show that LabVIEW has some cool 'multi-tasking' capabilities! :smileyvery-happy:
 
This i-LabVIEW groupyou speak of, can u give more info on its activities??
 
Regards
 
Dev

Hi Devchander,
iLabVIEW is a group supported by NI India. U can check out the following link to join. Its a very active group. Do join. 
It'll be fun and also helpful to many LabVIEW users in India. 
<a href="http://groups.yahoo.com/search?query=iLabVIEW" target="_blank">http://groups.yahoo.com/search?query=iLabVIEW</a> 
or go to groups.yahoo.com and search iLabVIEW
Yes, this is LabVIEW at 20. It has spread all over the world.

OK, I'm in...  LabView 2, 1990 or so. 
Still have the LabView 2 and LabView 2 Advanced training mauals complete with some ancient blue non "HD" disks. We were working on Inertial Measurement Unit (IMU's) test and evaluation software. Two of the completed units flew to the moon on Clementine!
<a href="http://www.cmf.nrl.navy.mil/clementine/" target="_blank">http://www.cmf.nrl.navy.mil/clementine/</a>

 


mr_nice wrote:
I've just started a mass compile from Version 8 to version 8.01. From the looks of it it will be another twenty years before I can do any freakin work :smileysad:


Maybe you can cut ot down to only a few years by following the tips here:
<a href="http://forums.ni.com/ni/board/message?board.id=170&amp;message.id=172705#M172705" target="_blank">http://forums.ni.com/ni/board/message?board.id=170&amp;message.id=172705#M172705</a> 
:DMessage Edited by altenbach on 06-03-2006  09:35 AM

Carmo wrote:

Hello All,
How can I arrenge the first LabView for Windows?
I only work in Labview since 5.1 and I would like to try, just for fun.
 
Regards


YES PLEASE !!!
 
I would also love to have a (30d) trial version , even if I have to reinstall windows 3.1 (or whatever) 
 
How about a VM- setup ? Maybe Apple spend the old OS and we all can try out ? 
 Message Edited by Henrik Volkers on 06-07-2006  10:24 AM

Henrik wrote;
" 
(Actually I used a tube radio to debug my first steps in Sinclair ZX81 assembler debugging <img height="16 src= http://forums.ni.com/i/smilies/16x16_smiley-very-happy.gif" width="16" border="0">&nbsp; ) 
" 
OK, I can't let that one go without a follow-up. I once saw Spock do that in "The City on the Edge of Forever" (?) but I could not ask follow-up Q's about what he was really doing.
So how did the tube radio help with your debugging?
Curious,
Ben

Ben wrote:

So how did the tube radio help with your debugging?




Ben, 
with the help of radio interference you can hear your computer working. (best in AM and SW Range, ok nowadays UHF? ) And you can hear if your program hang or running a fast or slow loop, listening to the interrupts.  Since the old tube radios are not shielded (wooden box, no PCB, all free wired )  they easely catch the electrons stop and go on your computer board :smileyhappy: 
It's a way like you don't need to look at the system load because you can hear the load of the power supply 
BTW: &nbsp;Bob Pease still recommend this way to&nbsp;troubleshoot&nbsp;circuitry. <a href="http://www.national.com/rap/Book/0,1565,0,00.html" target="_blank">http://www.national.com/rap/Book/0,1565,0,00.html</a> 
I love this radio, and I still have the telefunken tube guarantee cards (expired now :smileywink:&nbsp; )&nbsp;and the magic eye&nbsp;is still glowing..... <a href="http://www.jogis-roehrenbude.de/Roehren-Geschichtliches/Mag_Augen/Mag_Augen.htm" target="_blank">http://www.jogis-roehrenbude.de/Roehren-Geschichtliches/Mag_Augen/Mag_Augen.htm</a> 
Some more&nbsp;on troubleshooting <a href="http://www.avocetsystems.com/company/articles/magazine/tblsht2.htm" target="_blank">http://www.avocetsystems.com/company/articles/magazine/tblsht2.htm</a>&nbsp; Message Edited by Henrik Volkers on 06-07-2006  04:30 PM

Henrik Volkers wrote:


with the help of radio interference you can hear your computer working...  And you can hear if your program hang or running a fast or slow loop, listening to the interrupts.  

That...is...really...cool... :smileytongue:

I started using Labview in 2001,that time there were very less number of users in India and the companies using Labview for Revenues were only Small companies and i was worried about the career with LabVIEW
Latest Development and Marketing Startegies in indian region led the LabVIEW to be used by Big & Outsourcing companies and nowadays a many lot top companies including HCL Technologies,Texas Instruments,GE,Satyam,Infosys,Tata Consultancy Services,Patni Computer Systems,KPIT Cummins,L&T are using labview for Offshore development and a good tool to earn revenues....
Its a good to tool to work at and has good jobs assocaited nowadays
It has also been getting Best Software awards in India by Leading Magazines...
 
The Moral of the Story...:Patience gives a sweet fruit:smileyhappy:

may be this off thread but please its a request! 
i posted my problem in mostactive hardware section titeld to save data acquired in DAQ
please someone look into it and help me....
plzzzzzzzz

Henrik Volkers wrote:



with the help of radio interference you can hear your computer working. (best in AM and SW Range, ok nowadays UHF? ) And you can hear if your program hang or running a fast or slow loop, listening to the interrupts.  Since the old tube radios are not shielded (wooden box, no PCB, all free wired )  they easely catch the electrons stop and go on your computer board :smileyhappy: 


I recently read an article similar to this.  There is a study about using sounds to tell the IT team the "health" of the network.  A bunch of different sounds are generated based on events, such as a virus got intercepted, spam traffic level, etc..  It was a print, so sorry, I can't post a link... well actually, maybe I could.  
Who knows... maybe sounds could also be used in production ;)

Thanks Mr.altenbach !
i was totally ignorant of it

"old tube
radios........easely catch the electrons stop and go on your computer board ????  That's a good one!I can just see the new guys running out for the Snake Oil,   I mean "old tube radio",   to try and debug their code.Although a radio may be nice to listen to during the three or four minutes it takes for LabVIEW 8 to launch. 

JoeLabView wrote:
I recently read an article similar to this.  There is a study
about using sounds to tell the IT team the "health" of the
network.  A bunch of different sounds are generated based on
events, such as a virus got intercepted, spam traffic level,
etc..  It was a print, so sorry, I can't post a link... well
actually, maybe I could.  
Who knows... maybe sounds could also be used in production ;)Actually
the ominous ping utility seems to have gotten its name just because of
that. The original setup was a computer system where the output of a
quickly put together testprogram that later got prominent as "ping"
utility was piped to the system beeper to troubleshoot faulty network
cables. A single person could then test the cable by walking through
the building and moving and bending it and listening to the loud sound
could in that way detect where a cable defect or bad connector might be
located.

Rolf Kalbermatter

Audio feedback is a very powerful  technique. :)
I remember about 30 years ago I hooked up an audio amplifier to our old pulsed NMR spectrometer to listen to the FID for a student demonstration. I was amazing how much easier the shimmig was, just listening to the sound... If the field was inhomogenous, it sounded more like a
Thudd d d ...,
while with a prefectly shimmed magnet the sound was a beatiful
Dinngggggggggggggggggggggggggggggggggggggggggggggggggg.......
Just dialing the shim knobs while listeing would esily tell the righ direction to turn. :) It is amazing how good the human ear is to sense even subtle differences.
(With a ethanol sample I was able to generate some nice harmonics by selecting a suitable reference frequency).

JeanPierre a �crit:
In other words, altenbach sings when he is drunk...


LOL :D:D
 
il est des no-otres, il a bu son verre comme les au-autres ! :D:D:D
 
 

Ignoring the references to inebriating fluids...
Christan wrote "It is amazing how good the human ear is to sense even subtle differences."
I'd say.
I used to be a sailor as in USN and I supported a radar that was part of the "NATO Sea Sparrow Missle System" (now know as "Sea Chicken") wher problems in the reciever were very challenging to chase down. The only piece of gear we had with a bandwidth high enough to look at the IF signal was a spectrum analyzer. Hanging off a radar antenae in heavy seas was rough enough with out trying to keep the spectrum analyzer dry. Well it turns out we could plug a head-set into the IF test port and hear a harmonic of the IF signal! That was the end of using the spectrum analyzer.
Similarly the old 1200 baud modems. I used to be able to wisstle to a modem and negotiate baud rates.
Ben

Now I have to find the article...  But from memory, here is somewhat what was proposed..
 
When the network is good, there are faint sounds in the background like a soothing wind.
Depending on the unwanted activity, there were sounds like moskitoes or other aggressive sounds each attributed to a certain malfunction or attack on the network.  Basically, they referred to it as if you were in the Amazon Jungle (from memory or my interpretation).  What I do remember is that they wanted to try it using other forms of sounds such as classical music, for instance..
 
They basically wanted the IT person to be able to "hear" what is going on over the network.  
 
MY ADDON:  Now imagine that everytime some dude downloads some porn... can you imagine hearing a woman moan???  LOL!! :D

Yes AKTDM,
Except I believe that the article was from the Ottawa Business Journal.  But the same research!
Thanks!
JLV
 
... I'm picturing CC's computer doing frog sounds...  ;)

Took my first LV class in January 1986 (taught by Tony Vento) and wrote my first ground-up app in March-July 1986 (LV 1.2, I think). That first application used LabVIEW to control a stepping monochromator, acquired spectral intensity data at each step, compiled the full scan data into a spectral profile and processed the data to separate the laser line and amplified spontaneous emission (ASE) components. High ASE to Laser line intensity ratio=bad timing as a diagnostic for pulsed dye laser amplifiers. Oh yeah, LV has come a long way...and I have been there for each upgrade.

Ben wrote:

Similarly the old 1200 baud modems. I used to be able to wisstle to a modem and negotiate baud rates.



Hy 'Capt'n Ben Crunch'  still in 2600? :smileywink:
 
Sound has always been an important part in trouble shooting, maintenance and analysis. Especially in times without other tools. Everyone  Most  (ok know: ) Those who haved ruined their ears with walkman/mp3/ipods and who are driving (or responsible for) a mashine (car, production, fueled or whatever) will get a 'feeling' based on sound (and vibration) .  And the good ones will trust their feeling. 
But that what the 'Sound&Vib Tool' is good for: hook up the radio to the soundcard/AI and do a self analyzing program! 
 

Ben wrote:

Similarly the old 1200 baud modems. I used to be able to wisstle to a modem and negotiate baud rates.


Ah, yes, things I hadn't thought about in a while.
My college days were in the crossover period of 300 baud modems and ASR-33 Teletypes with acoustic couplers.  Ben's post reminded me of a 'trick' I could do in the computer lab - whistle the pitch that would cause the modems to reply, and get the row of TTYs to start doing that noisy "chunka-chunka-chunka" thing, from across the room.
And I did get the reference to Cap'n Crunch and 2600 Hz.  Though for the record, my electronics skills at that time weren't yet up to the challenge of building the 'peu de bo�te bleue'.
 
Dave

For those that do not cross post to both LAVA and the NI-Exchange see this thread on LAVA
<a href="http://forums.lavag.org/index.php?showtopic=3330&amp;pid=13277&amp;st=0&amp;#entry13277" target="_blank">http://forums.lavag.org/index.php?showtopic=3330&amp;pid=13277&amp;st=0&amp;#entry13277</a> 
To read about the origins of the "break" and what a horse's "arse" has to do with anything.
Now let confess my ignorance and say that unlike David who wrote "And I did get the reference to Cap'n Crunch and 2600 Hz." I did not!
I THINK 2600 was the FSK frequencies but the rest....
Care to enlighten me?
Ben
&nbsp;
&nbsp;Message Edited by Ben on 06-12-2006  08:25 AM

Ben wrote:


Now let confess my ignorance and say that unlike David who wrote "And I did get the reference to Cap'n Crunch and 2600 Hz." I did not!
Care to enlighten me?


Ben,
This is getting pretty far afield of anything LV-related, so I'll just give you a good Wikipedia link...
<a href="http://en.wikipedia.org/wiki/Blue_box" target="_blank">http://en.wikipedia.org/wiki/Blue_box</a> 
Happy reading!
Dave

Interesting article.
Thanks David

Ben,
     To anyone that might think that some of the Cap'n Crunch lore might be entirely fictional I will say that an article descriping "Ma Bell's" long distance network which defined what frequencies were used for what function mysteriously disappeared off all of the technical library shelves in about 1971. I know, because I looked for it while at the Univ of Texas, Austin during that time period (that is why I have a trilobyte as my icon, I am older than the dinosaurs!) The Cap'n Cruch reference is to a plastic whistle that came in boxes of that cereal that happen to produce a tone at or near 2600Hz, an important frequency in the telephone network back then. I say back then because most everything is digital, and they have filtered that tone from the lines going to most consumers (telephones). For those old enough, it was the brief tone you heard when the other party hung up during a long distance call, the little "ca-chink" sound. Of course it all looses its importance with Skype, etc., but was all quite interesting to a nerdy, techno-geek back in 1971.

 


LV_Pro wrote:

...Of course it all looses its importance with Skype, etc., but was all quite interesting to a nerdy, techno-geek back in 1971.


Don't be so sure. The technology changes but the crooks adapt quickly. :o
Here's one recent example: <a href="http://newark.fbi.gov/dojpressrel/2006/nk060706.htm" target="_blank">http://newark.fbi.gov/dojpressrel/2006/nk060706.htm</a>

hey!
i'm new to LV
doing a project  to control a DC motor
220V,2.6A, 500W
using a IGBT chopper
used IR2110 driver
want to generate a PWM from LV to control chopper o/p
sense speed  give to feedback  and Varry duty ratio
to control speed on a set speed
plzzzzzzzz   help me

raj_pandey wrote: 
plzzzzzzzz   help me 


Your question is offtopic here. I would suggest to post a new thread with a&nbsp;descriptive title over in e.g. the <a href="http://forums.ni.com/ni/board?board.id=240" target="_blank">Motion Control and Motor Drives</a> forum. 
Good luck! :)</a>

Christian!  How are you?  Saw this thread and had to answer.. thanks for keeping me from doing my real job! :smileyvery-happy:
I first used LabVIEW right out of school (in 1994) on a sattellite program at an aerospace company.  I developed a test system for the Attitude & Control Subsystem using LabVIEW 3.1 on a Sun workstation.  I took to it like a fish in water.  At the time I had no knowledge of state machines or the like and had multiple parallel while loops servicing my GUI.  That's where I first learned about the oxymoron of adding wait states in my loops to make my program work faster.  The other most memorable thing is that fact that there was NO UNDO!  You either saved frequently, or you cried and redid the work you lost.  Oh, and add the fact that LabVIEW wasn't the most stable application on a Sun workstation during that time.
Ahhhh, the memories... the good 'ol days were fun, but I'm glad they were over.  Someone once told me they can't wait until you can develop LabVIEW applications in 3D... now wouldn't that be interesting.
Ted

Ted!!!
Great to hear from you. Are you by any chance related to <a href="http://forums.ni.com/ni/view_profile?user.id=18219" target="_blank">that</a>&nbsp;guy. ;) 
If you are still in the greter LA area, come over for a BBQ one of these days. Don't forget to bring one of those:
<img src="http://forums.ni.com/attachments/ni/170/192454/1/carancho.jpg"> Message Edited by altenbach on 06-27-2006  05:37 PM


carancho.jpg:
http://forums.ni.com/attachments/ni/170/192454/1/carancho.jpg

i wrote some program  to remove white space ,and the numbers in begining of line .but it does not work . the file (a )is originale and file (b) is after remove them.  i did it  manually. some one can help me with a sample
thank you
Diallo


a.txt:
http://forums.ni.com/attachments/ni/170/200389/1/a.txt


b.txt:
http://forums.ni.com/attachments/ni/170/200389/2/b.txt

diallo332@ wrote:

i wrote some program  to remove white space ,and the numbers in begining of line .but it does not work


Well, I would recommend to post your question as a new thread. It really has nothing to do with the 20th birthday of LabVIEW and is thus offtopic here.
This will also give you a chance to improive the question. It almost seems you want to remove

- whitespace

- linebreaks

- the first number on each line.

- (what else?)

Why don't you attach your failed programming attempt?

Thank you for replaying me .
by the way i attached failed program to the mail.
I wanted to remove  white space and remove all the numbers and white spaces in begining of the lines  and writ it to the new file.
the file (a) is original and the (b) is after removed them manually.
the first number on each line is always the same number .
please  someone can help me with a sample.
Thank you
Diallo

Thank you for replaying me .
by the way i attached failed program to the mail.
I wanted to remove  white space and remove all the numbers and white spaces in begining of the lines  and writ it to the new file.
the file (a) is original and the (b) is after removed them manually.
the first number on each line is always the same number .
please  someone can help me with a sample.
Thank you
Diallo


remover.zip:
http://forums.ni.com/attachments/ni/170/200624/1/remover.zip

Diallo, try the attached.  It is just a quick attempt and maybe not perfect, but it might illustrate how to do what you want to do.  It's in LV 7.1; hope that's okay.
 
It doesn't belong on this thread, though.  As suggested earlier, start a new thread with a question like this.  You'll get a response from the community.
 
Best regards,
 
--Scott


remover_for_Diallo.vi:
http://forums.ni.com/attachments/ni/170/200638/1/remover_for_Diallo.vi

Thank you for replying  
sorry  can you send me the file in LV.7 
and than how can i make the message New thread
thank you

To start a new thread, go to <a href="http://forums.ni.com/ni/board?board.id=170" target="_blank">http://forums.ni.com/ni/board?board.id=170</a>&nbsp;and click on "New Message". then follow steps 1..3.
 

&nbsp;
Since you use a diagram constant of 000107, I assume that this number is always exactly the same. Is it???
&nbsp;
Attached are two possibilities (LabVIEW 7.0). &nbsp;There are many other ways to do this...
&nbsp;
Mod1 is more similar to your attempt, it just replaces all undesired elements with nothing. First we remove ALL "\r\n000107", then all spaces, then all "\r\n". Notice that you need to wire a TRUE to the "replace all?" terminal, or it will only replace the fist instance of the search term.
&nbsp;
Mod2 is&nbsp;one alternative approach.
&nbsp;
Try to understand both examples. ;)


removerMOD1.vi:
http://forums.ni.com/attachments/ni/170/200642/1/removerMOD1.vi


removerMOD2.vi:
http://forums.ni.com/attachments/ni/170/200642/2/removerMOD2.vi

Here it is in v7.
 
I've never started a thread so you'll have to explore.  I expect you'd start up at the top (click "NI Discussion Forums", do a search to be sure your question hasn't already been answered, and if not then click "new message" and take it from there.
 
--Scott


remover_for_Diallo.vi:
http://forums.ni.com/attachments/ni/170/200641/1/remover_for_Diallo.vi

If you look closely at the code illustrated on the cover of "Instrumentaion Newsletter" (third qtr 2006) that can be found here
<a href="http://www.ni.com/news/inst_news_q3_06.htm" target="_blank">http://www.ni.com/news/inst_news_q3_06.htm</a> 
you will see an inverter on the lower input of the add node. See this inamge.
<img src="http://forums.ni.com/attachments/ni/170/200973/1/No_More_Invert.JPG"> 
In what version did we loose this feature?
Ben
PS I know I can do that with the compound arith...Message Edited by Ben on 08-16-2006  10:49 AM


No_More_Invert.JPG:
http://forums.ni.com/attachments/ni/170/200973/1/No_More_Invert.JPG

Ben wrote:


In what version did we loose this feature? 



What feature? :D
<img src="http://forums.ni.com/attachments/ni/170/200976/1/invert.png"> 
&nbsp;Message Edited by altenbach on 08-16-2006  08:47 AM


invert.png:
http://forums.ni.com/attachments/ni/170/200976/1/invert.png

Hi All,
I the first labview I used was LabVIEW 3 (1996) but first app was done in LV4. But I think the best upgrade was when undo was added LV 5 first time if I remember correctly God Sent.

Hi Pipelon,
Sorry to inform you that this particular thread has to do with reminicing Labview over the past 20 years.
Please post your quetion in a new thread.  
You can do that here: <a href="http://forums.ni.com/ni/board?board.id=170" target="_blank">http://forums.ni.com/ni/board?board.id=170</a> 
and simply click on "Newe Message" near&nbsp;the top left.
or better... try this link:&nbsp; <a href="http://forums.ni.com/ni/board/post?message.subject=&amp;board.id=170" target="_blank">http://forums.ni.com/ni/board/post?message.subject=&amp;board.id=170</a><a href="http://forums.ni.com/ni/search?board.id=170&amp;searchbeforepost=true" target="_blank"></a> 
&nbsp;
&nbsp;
Altenbach,
Nice image for Ben..
:)
Message Edited by JoeLabView on 08-17-2006  02:50 PMMessage Edited by JoeLabView on 08-17-2006  02:53 PM

I NEED TO MAKE A CONVERSION OF A NUMBER TO A
STRING TO TRANSMIT IT VIA SERIAL IN A DECIMAL OR BINARY WAY, FOR
EXAMPLE, IF I HAVE THE NUMBER 5 IN ASCII THAT I SPEND AT 00000101 OR 5
IN DECIMAL.THAT HAPPENS TO ME IS THAT I HAVE THE NUMBER 5 IN A NUMERIC CONSTANT AND IT TRANSMITS IT TO ME AS 53 IN DECIMAL.WHAT
WAY CAN TRANSFORM THIS INTO DECIMAL OR BINARY FORMAT SO THAT IT CAN BE
TRANSMITTED VIA SERIAL AND DOES MICROCONTROLLER UNDERSTAND IT LIKE IT
IS?

PIPELON wrote:I NEED TO MAKE A CONVERSION OF A NUMBER TO A STRING TO TRANSMIT IT VIA SERIAL IN A DECIMAL OR BINARY WAY, FOR EXAMPLE, IF I HAVE THE NUMBER 5 IN ASCII THAT I SPEND AT 00000101 OR 5 IN DECIMAL.THAT HAPPENS TO ME IS THAT I HAVE THE NUMBER 5 IN A NUMERIC CONSTANT AND IT TRANSMITS IT TO ME AS 53 IN DECIMAL.WHAT WAY CAN TRANSFORM THIS INTO DECIMAL OR BINARY FORMAT SO THAT IT CAN BE TRANSMITTED VIA SERIAL AND DOES MICROCONTROLLER UNDERSTAND IT LIKE IT IS?



I would recommend to post this as a new question, it is offtopic here in this thread.
(while you're at it, try to fix your capslock key, it seems stuck) ;)

Fresh man in this field one month ago. please give me your great support!
Thank you very much.
Please remember my name: Jackey Yang.

No posts here for nearly a month, so it's time I chipped in.
 
Started with LV 6 around March 2003 shortly after arriving with my current employer. I arrived on a short term contract to help fill the void left by two departing engineers. One had ordered kit for a linescan system including LabVIEW - so that's where I started. Until now I thought that was being thrown in at the deep end, but looking at some of the other posts here it seems pretty simple. That application caused me a lot of heart ache. It ran on the development system (didn't have the application builder) and we had a mysterious hardware problem. But eventually it worked. 
 
I enjoyed LabVIEW because my background was in hardware design, with some work in PIC assembler. Creating LabVIEW code is like laying down a circuit schematic, so I find it easier than text code (which I find really hard to read, all the lines seem to merge for me - some kind of coders dislexia?) 
 
Glad I started in LabVIEW, as before that apps here were written in Cvi. My C skills had only been used for the odd bit of maintainence on someone elses code. We have a good CVi coder here - but he's reluctant to move to LabVIEW.
 
I've done some work on a wide variety of applications (Using PDA, Signal processing toolset) and just modded the original linescan application to use a new camera and acquisition card. This time I get to roll it out as an application (I soon pestered for the application builder), I'm having problems with that but getting NI support so it should be sorted soon.
 
My current project will soon be driving some equipment 24/7/365 while monitoring temperatures and measuring wear on the drive nut dynamically.
 
Next up - testing some equipment underwater at pressure, and then...??? Well, my work is varied :smileyhappy:
 
Anyhow, back to the real reason I came on the forums an hour ago, at home, while I baby sit and my wife has a night out with the girls.(My baby girl loves watching the screen while I code, but does try to reach out for the keyboard/mouse and mess things up). Looking for info on using externally created DLL's, and how to better use the error stream. Bound to find something somewhere on the forum. 
 
There - on topic reminisence, and an off topic reference at the end. Something to please everyone I think. :smileywink:
 
Bandit
 
LV7.11 and 8.0, (8.2 still to install)
PDA, Vision and Signal Processing Toolkit
Sound and Vibration Toolkit still shrinkwrapped (Customer got scared by prospects of license fees!)
Targetting Win NT4, 2k and XP, and PPC2003
Message Edited by Bandit on 10-20-2006  03:53 PMMessage Edited by Bandit on 10-20-2006  03:54 PM

Hi to all!&nbsp;&nbsp; When Labview was created, I was a 5 years schoolboy, <img src="../../i/smilies/16x16_smiley-very-happy.gif" border="0" height="16" width="16"> 
My first contact with the world of Virtual Instrumentation was 2 years
ago, when I had a subject call "Instrumentation Laboratory" at
University, where I learnt Labview. It was the 5.1 version. I started
studing GPIB (Power Source, Multimeter, Osciloscope, Relay Matrix and
Function Generator). The objective was to construct a virtual
instrument capable to measure the bandwith of some circuits. Circuits
were created using the matrix relay, configuring Low pass and high pass
filters. Instruments had to be connected in the right way to feed&nbsp; and measure the
circuit. I think that thing isn't as cool as what you have
made, but it's a good first step. Histories? Well, the most difficult
thing I had to do was manage the relay matrix. It did different things,
depending of the parity of the direction I was writting. I remember I
had to do a double serial poll to reset it. Even positions needed only
one. (It was a matrix from Phillips, system 21, 488.1, Completely
Horrible!!!)&nbsp; Otherwise, it was impossible. Today, I'm working in two
"Final Career Proyect". One of them is to manage a solar thermal
storage, using the fieldpoint platform. The second one is the
implementation of three Virtual Laboratorys, where alumns will be able
to control (remotely) the instrumentation, which will permit them to do
the practical exercises at home.I'm still young (only five years older than Labview <img src="../../i/smilies/16x16_smiley-surprised.gif" border="0" height="16" width="16"> ), Let's see what I will do in the future!! <img src="../../i/smilies/16x16_smiley-wink.gif" border="0" height="16" width="16"> Wish my best!

altenbach  I need your help.
 
     I built a close loop project on water temperature control. my objective is to control the temperature of water in a heating pot. the material i have are
 
heating pot ( deep fryer) 115vac
 cooling fan 115 vac
water pump 12 vdc
heat sensor
relays
pwm
 
my objective is to create a code to control the project.  are there codes to control these hard ware. I wanted to design codes that will turn on or off heating pot when the heating sensor detected a temperature setpoint about 90 degree F or high limit.   After rearched 90 deg F the code will turn of the heating pot do you know to put a time delay of 5 seconds after the water pot turned off. 
                       After 5 seconds the water pump started to pump.  is there a code for the  P W M or pulse width modulation where it will control the speed of the water pump. from slow to fast.  ater the water pump started another 5 seconds of delay for the cooling fan to turn on. the fan will cool down  water through a cooling radiator.    when the water temperature rearched a cooling temperature of 80 deg F or low limit then the heating pot started to turn on again.
sir, do you or anyone in here know something like i described

- You're finally in right board, but you're in the wrong thread.

- Addressing a specific member is considered rude.

- I assume that even with the Christmas spirit, Altenbach will not write code for you, nor will he search for you.

What to do:

- Go over the tutorials I linked to.

- Look at the examples in the example finder.

- Search for what you want to find ("temperature control", "temperature control hardware", "PWM", etc.) and go over the results.

- After you understand what you want to do and have written some code, come back if you have a specific problem you can't find the answer to and ask about that problem.

Urs, you can be happy - Alten is <a href="http://forums.ni.com/ni/tracker?user.id=7614" target="_blank">back in the game</a>. 
In this case, this user posted two different threads to the BreakPoint and does not seem to follow the suggestions in those threads.

Dear All 
 
I require ur help in building a VI to generate a sinle pulse(not continous) and send it a valve coil to actuate and measure the coil current back(response measurement)
For the above i used analog output and input option to send the pulse and measure the coil response but i succeeded in sending pulse and actuated it(oen/cose) but could not get the coil response back(current) 
 i need to to do it simultaneouisly 
 
I request the LabVIEW community to help in this regard i will attach the vi currently iam using
pls send me some example vi's
 
iam using PCI6040E and LabVIEW7.1
 
Thanks and Regards
 
D.Chandrasekaran
Engineer-LabVIEW
Emerson-IA


Pulse with Analog output n input new.vi:
http://forums.ni.com/attachments/ni/170/224949/1/Pulse with Analog output n input new.vi