Old LabVIEW versions

[F._Schubert]

LV 1.2 - No local or global variables (they were introduced in 3 I guess, from LV2globals). Cool!Is there also a verion before they introduced sequences (I fear not...).

Felix

[Darin.K]

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F. Schubert wrote:

LV 1.2 - No local or global variables (they were introduced in 3 I guess, from LV2globals). Cool!Is there also a verion before they introduced sequences (I fear not...).

Felix

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As much fun as it is to now bash the sequence structure, as an early adopter I would argue that LV owes its survival in large part to this (now mostly deprecated) structure.  Error clusters and pass-thru values seem natural and trivial now, but they did not exist.  To query a GPIB instrument requires a write, a wait, and a read.  Try doing that without error clusters, or pass thru resource values.   Believe me, style points were way down the list of factors.  Besides, NI was still trying to convince us to change to a dataflow paradigm, this was at least a crutch to let us enforce a little order.  One advantage to the lack of parallel processes was that left-to-right was pretty well enforced, even without explicit wiring.

Version 1 I played with long enough to say thanks, but no thanks.  Version 2 was workable, and by Version 3 I'd say they were getting pretty serious.  I do miss the old monochrome macs of the V1/2 days, however.

I will try to scan some old printouts I have (no screenshots), what I fiind most interesting is that we were fighting a two-front battle back then.  We had to get LV to communicate with our instruments.  This involved knowing many of the intricacies of GPIB.  Then, each instrument had its own set of commands and communication protocol.  For example, with one instrument I could not query the display mode, but I had to play 20 questions.  Are you in Log Mag?, are you in Lin Mag?...

Good times...maybe not.

[LV_Pro]

Unfortunately, the MAC at the 20th Annversary was actually running v2. I started with v2.5 on the PC, then did a MAC based one running v2. I have every version since 2.5.2, all the blue diskettes. Back then you look up what instruments you were using, then requested the driver for them, which NI would send on diskette. They did have an ftp site, although in 92/93 there weren't very many using the "internet".  It was still a "kewl" language, unlike the Pascal, C, Fortran, HP Basic I was using. I also remember when HP Vee came out, with the initial version matching that of the current LabVIEW v3, and really annoying many of us when HP used unauthorized quotes from the LabVIEW user forum Info-LabVIEW in their ads.

[Darin.K]

Printout from an old V2 VI from HP.  I particularly like the controls on the right side (even for the Number To String function), and the stylish Mac computer on the SubVI icon.  Looks just like the computer I was using at the time.  A few wiring gaps as well.

[ArulM]

I have a question on the old LABVIEW 3.0 - using it in Mac. Yes, I know this is dinasour-aged labview. Unfortunately I have to step in the code and see the values of inputs and outputs.

My question is: Do anyone out there know "putting a breakpoint" existed in that verison?

Some Details:  I see some tool-bar showing ... and squarewaves, single wave icons. I think the waves icon can help me step in or step out, I think. I see a right click option for "probe" except I don't know where I could see the values (no window showing up hoilding the values).

Thank you. 

[johnsold]

I used LV 3 on the Mac, but I do not recall the details. I think breakpoints were added later. It is possible that Execution Highlighting may be there.

You can always put indicators on the wires.

I no longer have access to the documentation - too bad, the LV3 manuals were excellent - but if you can post screenshots or something, I may be able to help.

Lynn

[ArulM]

okay. great. Thank you. I thought of putting a screen shot earlier, however I cannot copy stuff out of that Mac. I was thinking of taking a photo of that screen and send it. I will do that tomorrow. However I was able to step in (kind of step out if you are in a subvi) using the single square icon. That sort of helped. Thanks again.

[jcarmody]

[Intaris]

Took me a while to realise what that image was of.....

Nice.

[PaulG.]

My company cleans out a lot of equipment before we put in new. I see old stuff like this all the time. It was a touch of nostalgia the first couple of times but I'm over it now.