Migrating LV3.1 to 8.5

[Jim77215]

We have a scenario where we need to take a customer's LV 3.1 source code up to LV 8.5. Right now we do not have a copy of LV 3.1, but I'm assuming that LV 8.5 will not open and upgrade a LV3.1 file? If that is the case what is the migration path to get LV3.1 code up to 8.5? Thanks!!

[RavensFan]

LabVIEW 8.5 won't be able to open anything older than 6.1.  However, LabVIEW 8.2 can open older files.  Whether it can open as far back as 3.1, I don't know.  So you will need to have a version of LabVIEW at least as old as 8.2 but no older than 6.1.  Then you would open and resave it in the newer version.  Then you would be able to open it in LV 8.5

You may even have some issues considering the number of jumps in version levels.  Controls and functions that existed in LV 3.1 may no longer exist in LV8.5  So you may wind up with a lot of broken wires you'll need to fix.

Even once you get through all of that, you may want to decide to just look at the code converted code and rebuild from scratch.  I know the front panel controls and indicators have a much more modern appearance in LV 8.5 than they would have in LV 3.1, so without replacing them, the new version of the code might still have a dated appearance.

[waldemar.hersacher]

You need the CD mentined in this KB article: http://digital.ni.com/public.nsf/allkb/429E45271CFD683786256D87006B1EEF. Although the article itself is older the method is the same today.

Problems you may encounter:

Traditional DAQ with 16 bit references vs. Traditional DAQ with 32 bit references

Unsupported hardware in TDAQ 7.4

All file functions

We have made this last year from 3.1 to 8.2 and decided to replace all DAQ with DAQmx and replaced the hardware too. You need to transpose the 2D-DBL arrays from DAQmx to use your old analysing algorythms.

Message Edited by waldemar.hersacher on 03-31-2008 03:27 PM