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crelf

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Posts posted by crelf

  1. We just saw the latest version here at VIE (thanks for the demo Erik) and it looks pretty slick - I suggest everyone download it here: http://www.viewpointusa.com/prod_tsvn.php Erik says that it's a beta, although it's a very functional beta. I encourage everyone using LabVIEW and SVN to take a look.

    The guys at Viewpoint Systems recommended that I download the latest version from their ftp server. So now I have r290. No more crashes, but the icon overlays are gone. But it still works great.

    Overlays are back :)

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  2. Maybe I'm not quite understanding what you're after, but have you considered using EasyXML? THen you can define your heirachical datastructure as a cluster of ..., and it makes reading from/writing to actual XML files straight forward. I use it on a few projects and it's sweet.

    PS: The example on the webpage is trivial - it works very well with complex and large schemas too.

  3. So let me get this straight: you've got a bunch of GPIB instruments in your system, one of them goes down and the replacement is RS-232 only. Is that right? If so, why not connect RS-232 directly to your PC (if you have a port)? Or get a USB<->RS-232 adapter? Either way, if you're using VISA, it's just a matter to replace the GPIB resource name with the new one in MAX.

  4. I'm reminded of what a teacher once said to me for exam technique. Answer the the question, not what you think they are asking.

    That's fine, as long as the OP really asks what they want to ask, which isn't always the case.

    I worked with a smart guy who, when asked a question, would immediately give the answer. It motivated some people to work a lot more before asking him a question. "It was so easy for him! Maybe I can figure it out, this time." The people who came back to him with more questions tended to be either technicians or soon-to-switch-to-management-or-marketing types. (Hey, some of my best friends are managers and marketers.)

    I worked with another smart guy who, when asked a question, would answer the question that should have been asked - but without telling the asker the difference. It motivated some people to never ask him a question again. Those who came back to him with more questions tended to be curious perfectionists - always searching for practical knowledge.

    Sounds like what you want is someone who is a blend of the two.

  5. However, it doesn't look like Pickering does *any* PXIe equipment, so you'll probably have to check out some other vendors.

    You're right - it doesn't look like they even have a PXI riser either.

    You may end up having to fork over some cash for NRE.

    ...and then sell it to people like me! :)

    These look kind-of interesting...

  6. I concur - I've used it a few times, mostly for iterating over multiple UUT simulations (eg: I have 1,000 images that are of UUTs, and a custom vision alogrithm that makes some measurements on them. I write an autoIT script that acts like an operator: enter a serial number that identifies the UUT image, maybe populates some other test specs, hits "GO!", waits until the status indicator turns green or red (and maybe branch here for some additional stuff it the UUT fails, switch to Excel, add a tab, fill some stuff out, switch back to my app, then rinse and repeat. I can make a minor mod to the algorithm, run the script, and let it hum away in a virtual machine while I work on other things.

    The scripting language is very capable, and I agree that it's simple to learn. You can even distribute a "script" as a stand-alone exe (I've done this for customers that want to do their own testing).

  7. I haven't had an issue like this for many years - back in the olden days cards didn't have good "insulation" between forward-facing DAQ connectors and PC-side bus chips, so sometimes a bad hook-up, too much voltage/current in my test rig, etc, would fry the card. These days, it usually just fries a channel, but if it's really bad, it could take down a card.

    So, first check your wiring, signals, etc, and make sure they're all well within the operating ranges of the card. Next, talk to NI and have them review what you're doing - there may be an issue with the card's design, but the PCI-DIO-96 has been around for a loooong time and has been used in a lot of applications, so that seems unlikely. It's possible that NI has recently changed something in the production process, so there might be a bad batch?

  8. I've seen this plenty. To help me sleep at night, I pretend that the case structure once held functional value and through the course of because someone just forgot to refactor.

    To be honest, I think that's what happen with the one I shared too - I like to think, based on the whitespace around it, there was once some uber difficult logix going on there. At least, that's what I have to beleive.

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