jcarmody

Cross-posted on NI here. I just witnessed a 4-wire resistance measurement across the barrel of a metalized connector made with a standard set of alligator clip-like probes. One operator makes this particular measurement with the clips only slightly opened, and the resistance exceeds the test limits. This triggered the Manufacturing Engineer to get involved and his habit is to make this measurement with the clips almost fully opened. The resistance, when doing it this way, is about 1/3 of the first operators method. I tried to imagine why this might occur, but I'm stumped. I thought about the length of the current paths through the material and how the corresponding change in distance would increase the resistance when the probes are closer together, but this doesn't explain the 3x factor. This would also imply that turning one clip 180 degrees should result in a change in the opposite direction, but this isn't observed. I'll keep guessing. Have you seen this? Can you explain it?

I'm one of those people that won't open Word documents from people I don't know. As of this posting, however, I can see that (at least) two people don't have the same concerns. If you'd post the questions instead of the attachment...

Here's an absurd scenario: Me to LAVA: How do I do something? LAVA to me: Like this. Me to LAVA: Oh, thank you so much! That's just what I was looking for. That was fast; you folks are the best. . . . <some time later...> Me to myself: I can't use that code, because the author has a copyright...

Here's an article that explains the difficulties, inherent in copyright laws, for even the most libertarian among us to give away our work.

TestStand uses a database schema that I've grown fond of. It does the things ShaunR describes. Default TestStand Table Schemas Creating a TestStand Database Schema from Scratch The second link contains more information.

You can if you use the Code Capture Tool. Something could be said about eating dog food...

My knee-jerk reaction was "you could write a script for that"! I have an idea sitting on my shelf (or a back-burner, I can't remember where I left it) that will require me to find dynamically called VIs.

I just tried my Lab Python vi.

I finish reading this thread, pop over to try something and experience the same thing.

Could you use Lab Python? I wrote a small example here. [edit - fixed link to original discussion in the NI Forum]

I'm not sure I understand what you're trying to do, but this may help you get started. The Tree Control API can be found right here, on LAVA.

Benchmarking nugget - http://forums.ni.com...de/td-p/1179349

That's a lot of Local Variables...

I use Control Value: Set Method.

I was hoping you would post this; it will be useful in my next project. Thanks.

Yes, but I couldn't get it to work with a Sequence structure. It worked fine with a Diagram Disable, though. Thank you.

I seem to have lost that wire when I edited your snippet. My BD is missing it, too.

It turns out YOU can't do that, but if you use the Code Capture Tool you could.

I want to be able to move the contents of a frame in an Event structure to a frame in a Case structure. I've only been able to move them individually, but I want to accomplish this without losing the wiring. Is it possible to do this in one move, or will I need to move and then rewire them?

We have a few PXI-chassis-based ATEs and we have serious issues with cooling such that we often have to move test operations to cooler rooms in the summer. I'm not responsible for any of these operations, so my comments are only heresay (heresy ), but one of our Sr. Test Engineer has had several discussions with NI AEs regarding this. YMMV, but I'm interested in what others say.

That's what I was thinking could be done, after rereading the OP and then the title of JG's example but before clicking "Post".