VISA 4.0 LabVIEW 6.1

[shoneill]

I'm currently in the process of upgading to LV 8.20.  I'm working in LV 6.1 and 8.20 at the moment, and I wanted to change my VISA version to 4.0 under LV 6.1 so that I'm using the same version in both versions.

I don't seem to have any new VISA functions available on the palettes.  My Event type choices for example are the same as under VISA 2.6, whereas in LV 8.20 and VISA 4.0, I have a much more comprehensive range of event types to choose from.

How do I update my VISA functions within the LV environment?

Shane.

[shoneill]

Just to clarify,

MAX lists VISA 4.0 as being installed, and I believe this is the case.

The problem lies with my "interface" to LV 6.1.  The VIs delivered with VISA 2.6 seem to be still residing in my vi.lib directory, and this gives me less options when using VISA events......

Shane.

[shoneill]

OK, further clarification.....

I basically need VIs for Event handling which have an Enum (Or text ring) as input type so that I don't have to keep a reference of the hex numbers for the different event types.

Can I get them from somewhere?  I can't back-save from 8.20, because I don't have 8.0 or 7.1....

Shane.

[shoneill]

OK, further clarification.....

I basically need VIs for Event handling which have an Enum (Or text ring) as input type so that I don't have to keep a reference of the hex numbers for the different event types.

Can I get them from somewhere?  I can't back-save from 8.20, because I don't have 8.0 or 7.1....

Shane.

Grrr, double-post.  I'm really polluting the forums today.

Message Edited by shoneill on 11-23-2006 04:58 PM

[RobertH]

hello shane,

is it possible to post the VI or a similar example?

regards,

robert h
NI germany

[shoneill]

Hallo Robert,

here are a couple of pics to highlight the problem.  I see that simply passing the hex values for the different events would probably work, but it's awkward since there are VIs out there which make this unneccessary.

It might be that the original VIs in my VISA.llb file are from a previous version of VISA.  Whatever version was shipped with 6.1 was installed originally I believe (Before I inherited this PC).

In both of the following pictured I have used the "Create constant" pop-up dialog to generate the constant on the diagram:

Here's my 2.6 VI


Here's my 4.0 VI


Needless to say, the version from VISA 4.0 is much more intuative.

Can I have this VI saved for 6.1?  Please?

If I fully uninstall 2.6 and re-install, should I get this added functionality?

Shane.

Message Edited by shoneill on 11-28-2006 12:58 PM

[RobertH]

hello shane,

it looks like the VISA API doesn't provide a typedef in LV 6.1. but you basically could create your own typdef and use it with LV 6.1. i attached the typedef for the eventtype as example.

regards,

robert

[shoneill]

Hi Robert,

Thanks for that, that will help out with my immediate problem.

I'm a bit unsure about your text that the "VISA API doesn't provide a typedef in LV 6.1".  Surely the VI within the VISA.llb is responsible for providing the typedef.  It must be relatively simply to make a version of these VIs with typedef input.....

If it's a "LV 6.1 isn't supported any more" problem, then I'll just do it myself with a wrapper VI, I'd just rather have a NI solution.

Thanks, my problem is 99% solved 😉

Shane