labview 7 express compatibility

[lorry 82]

I currently programming a relatively complex VI with multiple sub-VI's using Labview 7.0 express. I wish for the program to run successfully in LabVIEW 6.0i. Does anyone know whether it will definitely work in theory, or does it depend specifically on what is in the program itself?

[Ray.R]

The first thing would be to stay away from the newer features from LV7. If you use TestStand, make sure you use the legacy functions.

So in theory, it should work. Try it and post your result..

You may want to try this:

FILE
Save As with Options
Select "Save for Previous" it offers LV6.1

-JLV-

[waldemar.hersacher]

Hi lorry,

you need the upgrade notes from LV 6.0 to 6.1 and from 6.1 to 7.0 to know what was added to LV. Programming your VIs you cannot use any new features (like the event structure or the queue/notifiers functions).

Some VIs (I know VISA Configure Serial Port is one) will have a different connector pane in LV 6.0.

Converting to LV 6.0 is a two stage process since you can go backwards only one step at a time. Convert it from LV 7.0 to 6.1 and test it and make all corrections then convert it to LV 6.0.

Waldemar

[EdDickens]

Like you stated, it is going to depend on what's in the program.

LabVIEW 6.0.x didn't have the Event Structure, so if you used that at all, it will not convert correctly to 6.0.x. I think it tries to insert a Case Structure where it sees an Event Structure. Also, there are many property node attributes in 7 that are not in 6, so that may be another area of concern.

Another thing, you can't save directly to version 6.0.x from 7, you have to do it steps. First you save to 6.1, then open it in 6.1 and save to 6.

I'm sure there are other things that will cause it not to work, but the only way to know for sure is to just try it and see what happens.

Ed

[Ben]

"I wish for the program to run successfully in LabVIEW 6.0i."

Flame suit on!

LV 6.0 was buggy!

I had all kind of hacks in my code to get it to work reliably. I can not list all of the issues, but I suggest you go to 6.0.1 which was better than 6.0.

LV 6.1.1 is amazingly solid.

Ben

[Ray.R]

I agree:

LV 6.1.1 is amazingly solid.


-JLV-

[Evan]

Although you have gotten a lot of answers about features I wanted to mention one thing if you want 7.0 code to run in 6.0 you also MUST have a version of 6.1. 7.0 can save down to 6.1 and then 6.1 can save down to 6.0, that is assuming you have followed everyone elses recomendations.

[crelf]

I found LV 6.0.2 to be very good too, with a lot of the bugs fixed (it's a free upgrade to go from 6.0 to 6.0.2)

[waldemar.hersacher]

Hi Ben,

what is LV 6.1.1? In "drivers and updates" I cannot download it. There are version 6.0.2 and 7.0.

There was a version 6.0.1 which is much better than 6.0i. But the actual 6.0.2 is also good.

I though there was never a fix pack or update for 6.1.

Waldemar

[Ben]

Good question!

It looks like I did some typographic stuttering.

I checked my machine and it is indeed "LV 6.1".

Thank you for correcting me.

LV 6.1 is what I was talking about.

Sorry about any confusion.

Ben