Instrument Drivers
Wire folk; Does anyone have a Boonton 4400A Peak Power Meter Instrument Driver? The Boonton Web Site is useless, and the Driver doesn't show up on the NI Instrument Driver Network. I have seen an old driver for this at one time, but I cannot remember where it was, and I cannot find it again. Any help is appreciated. Rick M LMC - Syracuse NY
RE: Wanted: #define
right, wrong, or indifferent, I have used this technique for at least 5 years. with no issues. Rick M -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Allen Weekley Sent: Wednesday, June 16, 2004 12:04 PM To: Info LabVIEW Mailing List Subject: Re: Wanted: #define Rather than use a global I would prefer to place all the parameters as constants on one block diagram. You can bundle them and output from the VI as a single cluster; then you can Unbundle by Name which makes the using code very readable. If you need to change a parameter you can simply type in the new value and you don't have to remember to Make Current Values Default. You stated you would never write to the global programmatically. Using this technique it would be impossible to write the parameter values programmatically, so it would be immediately clear to anyone else who looked at your code that the parameters were not being written programmatically. Allen Weekley - Do you Yahoo!? Take Yahoo! Mail with you! Get it on your mobile phone.
RE: VI Server error 63
Just a thought but if this is starting Labview after a Boot, perhaps it is starting Labview before the network services are completely up and running. In other words maybe this is not truly a server issue, maybe its all within the remote box. Just a thought... Rick M LMC Syracuse NY -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Jason Dunham Sent: Tuesday, June 15, 2004 1:34 PM To: LabVIEW Mailing List Subject: VI Server error 63 Hi I have two remote systems which are supposed to remain connected with VI Server. Sometimes, when one computer starts LabVIEW and tries to connect, it gets error 63, connection refused by server. Since the systems are remote, I'm having a hard time figuring out exactly what causes the problem. The systems usually connect, so it should not be a allow/deny problem or any other VI Server config problem. Has anyone else seen similar problems or have some advice? Jason Dunham SF Industrial Software, Inc.
RE: Password
Hamid Shojaei wrote: I set a password for my VI. Now I want to see it's block diagram but I can't. How can I cancle it's protection?... Unfortunately you can't. But (hopefully) the best thing about this, is that now that you know, you probably won't do this again. There is no substitute for experience. (except maybe someone else's experience and this forum ;- Perhaps you can establish a method of protecting these based on the File Name. I modified a Labview VI that I found in the wild to programmatically password protect all sub VI's of some Main VI, based on the vi's name. For example use a constant prefix followed by the 1st, 3rd, and 5th letters in the title of the VI. This is not what I did, but I think, you get the picture. This way you would only need to look at the title bar to recall the Password AND all VI's are different, because if you use a common password, once you unlock one, the password cache gets updated and any VI's protected with that common PW are also unlocked. (at least in LV6.1 and previously) Obviously, this is not the most secure method, but as was already stated, the only positively secure method is to use save as... and save without the block diagram. Caution here though also, once you do this you can never recover the block diagram either, although you should also save the backup original with the diagram to a different secure location. HTH Rick M.
RE: PXI or SCXI impedance analyzer?
David; This is a great idea. The '1%' that you left out has to be cost. Lets face it... PXI is expensive. Your approach has the ability to be a much more cost effective solution, Although depending on who is doing the custom HW design, this could be the trade off... Its not my intent to start a new discussion branch here, but while COTS obviously does has its advantages, I think the trend has been to cast aside custom solution based solely on cost, too often lately. I for one prefer the custom approach... Maybe its just more challenging, and what engineer doesn't like a challenge? My .02 cents Rick Mahoney Equipment Test Design Lockheed Martin Corp Syracuse NY -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of David A. Moore Sent: Wednesday, June 02, 2004 8:49 AM To: Info LabVIEW Mailing List Subject: Re: PXI or SCXI impedance analyzer? George, This probably won't help you, but for one project I've worked on we replaced a big HP impedance analyzer by a function generator, a high speed digitizer, and some custom circuitry. It lets us send a chirp and get impedance as a function of frequency in about 1% of the time and for 1% of the weight. --David Moore At 02:01 AM 2004-06-02 -0400, you wrote: Subject: PXI or SCXI impedance analyzer? From: Seifert, George [EMAIL PROTECTED] Date: Tue, 1 Jun 2004 12:27:21 -0500 I need to measure the impedance (low frequency, low power) of up to 16 leads. So I need an impedance analyzer and a multiplexer. Currently we have a GPIB controlled multiplexer and impedance analyzer, but would like a more compact system. Is there anyway to do this using PXI or SCXI so that we can have a smaller package? I can't seem to find an impedance analyzer for either chassis - just resistance measurement. George - -W-H-E-A-T-W-H-E-E-L-L-E-N-S-T-O-W-I-N-D-O-W-I-N-G-G-P-R-O-G-R-A-M-W-E-B - - -- David A. Moore - Moore Good Ideas, Inc. -- -- (801) 773-3067 - NI Alliance Member -- -- 1996 Allison Way --- www.MooreGoodIdeas.com -- -- Syracuse, Utah 84075 - [EMAIL PROTECTED] -- -
RE: Maybe off topic - freeware and commercial ad
This off topic Discussion on Off Topicness is making me dizzy, But as long as I'm here... I vote, and I vote head bangin' (Sabbath, VH, Metallica) and just to be complete, I'll reference the off topic of recursion Wasn't Pluto actually Goofy's Pet? Whats up with that? Rick M -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Bookwalter, Dan Sent: Wednesday, June 02, 2004 10:45 AM To: 'George Gatling (Contractor)'; Scott Hannahs Cc: [EMAIL PROTECTED] Subject: RE: Maybe off topic - freeware and commercial ad I'll have to vote for Floyd ,Allman Bros , Eric Clapton and Muddy Waters :-) Dan Bookwalter N8DCJ Hi-Stat a Stoneridge Co. 345 South Mill St. Lexington, Ohio 44904 (419) 884-1219 Phone (419) 884-4172 Direct (419) 884-4195 Fax [EMAIL PROTECTED] -Original Message- From: George Gatling (Contractor) [mailto:[EMAIL PROTECTED] Sent: Wednesday, June 02, 2004 10:40 AM To: Scott Hannahs Cc: [EMAIL PROTECTED] Subject: Re: Maybe off topic - freeware and commercial ad At 10:11 AM 6/2/2004, you wrote: might engender a similar warning as would a discussion of whether the Grateful Dead were the greatest all time rock band. I cast my vote for Floyd oh.. maybe that was rhetorical? :P But I do agree with you Scott... the list is most useful as a place for like minded people to bring their collective technical knowledge to bear on each others problems. I have always felt the general rule of thumb here as been that it was better to ask forgiveness than permission when posting a question that seems off topic. Of course, when the post is not solicited or a question, perhaps there is a different rule of thumb? And I can't help wondering if an off topic discussion about off topicness is something recursive that we might never escape... :)) Good thing recursion isn't allowed in LabVIEW! George Gatling Applied Technology Division, SFA Inc. Space Physics Simulation Chamber US Naval Research Laboratory 202-404-5405 (phone) 202-767-3553 (fax) If trees could scream, would we be so cavalier about cutting them down? We might, if they screamed all the time, for no good reason. --Jack Handy _ This electronic mail transmission contains confidential information intended only for the person(s) named. Any use, distribution, copying or disclosure by any other person is strictly prohibited. If you received this transmission in error, please send an electronic mail message to [EMAIL PROTECTED]
RE: [W] off topic - running BATch files as scheduled task under XP
I think that this might have to do with your Shortcut if that makes Sense.. I had something similar happen, and I deleted my Desktop Shortcut Icon and made another, and the issue went away. WinXP also allows by right clicking and selecting properties a compatibility mode in which the programs/processes should run. I can't guarantee this will fix your issue, but its a simple experiment. The problem is actually an issue with a Microsoft support file rather than with your Batch file. I think this issue is addressed by Microsoft in an article at the following link: http://support.microsoft.com/default.aspx?scid=kb;en-us;Q245184 HTH, Rick Mahoney Equipment Test Design Lockheed Martin Corp Syracuse, New York 13221 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of R. Glenn Givens Sent: Tuesday, May 11, 2004 10:32 AM To: LabView Discussion Group Subject: [W] off topic - running BATch files as scheduled task under XP Friends I used to run a very simple batch file that appends one file on to the end of another. It was a scheduled task in the Task Manager under W98. Now I have XP Pro SP1 and I can execute the batch file manually any time without errors but when I execute it from the Task Manager, whether I let it run at the proper time or right-click and select Run, I get a dialog box that says c:\windows\system32\svchost.exe The NTVDM CPU has encountered an illegal instruction... If I comment out everything, I still get the same error. The actual DOS window is completely blank meaning that probably nothing was executed. Any ideas? R. Glenn Givens P.Eng. Innovention Industries Inc. Burlington, ON, Canada www.innovin.com
Anchor Window?
I have an interesting question that has probably been asked and answered here before, although I personally don't recall seeing this. When I start LV 7 Express on my Dell system running XP Pro, a small anchor dot (maybe a ultra small resized window maybe 5x5 pixels) just big enough that I can click on it opens in the dead center of my CRT. If I have another app as active like notepad (or anything), Clicking on this tiny spot highlights the LV icon in the task bar momentarily and then shifts focus to Labview. Has anyone seen this before, and if so, what is it? I've never seen this in any other app. Just Curious Rick M.
RE: Uniquely identifying computers
Am I missing something here, or can you not just get the computers Name? All computers have a 'Name'. I have a vi that returns this name. I don't recall where I got this, but If anyone is interested, contact me and I will send it to you. It's small and very simple. Rick Mahoney Equipment Test Design Lockheed Martin Corp Syracuse, New York 13221 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Scott Serlin Sent: Wednesday, April 07, 2004 5:44 PM To: [EMAIL PROTECTED] Subject: RE: Uniquely identifying computers A simple method that I use is to use the system exec command and issue the set command from the dos prompt in win2k. From there you can pick off the username logged into the computer. You can try this manually by going into the start and then run menus of windows. Next, type command at the pop-up box. Once the dos shell name comes up, type set. Look for username and you can do a match pattern off username. I just tried this a moment ago and noticed that you can also see the computer name as well. If command does not work with your version of windows, try using cmd. Scott -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Craig Graham Sent: Wednesday, April 07, 2004 2:32 P To: [EMAIL PROTECTED]; [EMAIL PROTECTED] Subject: Re: Uniquely identifying computers - Original Message - From: Michael Porter [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Wednesday, April 07, 2004 6:52 PM Subject: Uniquely identifying computers Is there a way to read from a LabVIEW executable any sort of value that will uniquely identify one particular computer? The computers will be from unknown vendors, but all running some version of Windows. MAC address of the ethernet card? Try ipconfig /all from a command prompt. Obviously won't work if the ethernet card is swapped out at some point, so whether it's useful or not depends on what you're actually wanting to do. -- Dr. Craig Graham, Software Engineer Advanced Analysis and Integration Limited, UK. http://www.aail.co.uk/
RE: AnalogOutputs info
Dan and Blair; Thanks for the quick replies, but I did set num of iterations to 0, and my buffer length is set to an integer multiple of sinusoid length (I actually found that after I did find discontinuity glitches). But still, stop (complete) the VI and the output stops. Is there some thing else I'm missing? Also, I would like to know if there is a maximum frequency I can create with reasonable resolution. Thanks all. Rick -Original Message- From: Bookwalter, Dan [mailto:[EMAIL PROTECTED] Sent: Thursday, March 25, 2004 1:53 PM To: Mahoney, Richard C; [EMAIL PROTECTED] Subject: RE: AnalogOutputs info Richard You need to set the number of buffer iterations to 0 in AO Start.vi to get it to generate the buffer continuously until you clear the generation.. Dan Bookwalter N8DCJ Hi-Stat a Stoneridge Co. 345 South Mill St. Lexington, Ohio 44904 (419) 884-1219 Phone (419) 884-4172 Direct (419) 884-4195 Fax [EMAIL PROTECTED] -Original Message- From: Mahoney, Richard C [mailto:[EMAIL PROTECTED] Sent: Thursday, March 25, 2004 1:43 PM To: [EMAIL PROTECTED] Subject: AnalogOutputs info I'm not really new to LV but I've always used Commercial Function Gens, and I know that I can use an MIO Bd. I'm trying to load a buffer with a sinewave (1.5Khz) and run the VI and get out a wave form. Most of the example programs show how to do this. But I want to just run the VI, let it complete, and then move on. But when I stop writing the output, the signal goes away. Isn't there a way to load the buffer (circular Buffer) on the MIO bd and let the HW take over and just keep outputting until I run a Stop analog output VI? I know I can just run the output code in parallel with the other code I'd like to execute, but, I'm thinking I should be able to let the HW just do this. I'm relatively sure there is a way, but the solution escapes me. Has anyone have info on this or have this type of code they would be willing to share? Also, What is the highest output Frequency with pretty good resolution I could possibly expect from this type of a config? I am using a PCI 6070E E series PCI bd. in a Win2k setup. Thanks in advance Rick _ This electronic mail transmission contains confidential information intended only for the person(s) named. Any use, distribution, copying or disclosure by any other person is strictly prohibited. If you received this transmission in error, please send an electronic mail message to [EMAIL PROTECTED]
RE: The Future of Igor and Info-LabVIEW Lists
CLAP CLAP CLAP... Standing Ovation. Thanks Tom for everything. Rick M. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Coradeschi, Tom [AMSRD-AAR-AIS-E] Sent: Friday, March 19, 2004 5:32 PM To: igor; info-labview Subject: The Future of Igor and Info-LabVIEW Lists Good afternoon, all. As you know, there have been a number of problems which have impacted the availability of the Igor and Info-LabVIEW mailing lists recently. I've asked the readers of both lists for their support in moving those lists to another server and in taking over the administrative tasks I've been performing. As I fully expected, given the fine caliber of folks who use Igor and LabVIEW, a number of folks threw their hats in the ring. I'd like to start by publicly thanking Michael Aivaliotis, Scott Hannahs, George Gatling and Arlen Walker for doing so. I'm quite sure that all of them are fully capable of taking on the job and making sure that it will all happen. I have asked Scott Hannahs to take the reins and he has not only agreed to do so, but he has agreed to take both mailing lists over! The lists will be run via an OSX server, housed in a real machine room, with admins on the job to keep it all running smoothly, backup power and all that other good stuff (a far sight from my shoestring setup, that's for sure!). Scott and I are working the details of how we will manage the transfer. Right now, our strawman plan goes something like this: o Shut down subscriptions on my machine here to freeze the subscriber list. o Transfer that list to the machine at Scott's site (National High Magnetic Field Lab at Florida State University) and install it there (both sites use the same software, so that will be relatively straightforward). o Announce the new email addresses and activate the lists at FSU. o Set my machine here to forward list mail to the new addresses (probably active for 30-60 days or so). o Turn off forwarding here and put an autoreply on those addresses pointing users to the new site (again, for some finite period of time). o Shut down my machine (a 6100/60, ie 1st generation PowerPC, in case you were wondering). We expect the move to happen some time the last week of March or first week of April as it stands right now. More details will follow as they become available. I'd also like to take this opportunity to thank some other folks who help out here: Brian Renken, who runs the info-labview.org website and Andrew Johnson, who bought us the copy of LetterRip Pro which makes these lists happen in the first place. As I slowly fade from the scene, I'd also like to thank all of you for making this a really great experience. Way back when I was a heavy Igor and LabVIEW user, the lists made a tremendous impact on my ability to do my work here. Time has marched on and I do different things now, but the value of user communities like these is clear and real. You all can give yourselves a big pat on the back for making that happen! Take care... Tom Coradeschi Excalibur Systems Engineering [EMAIL PROTECTED]
RE: DOS comand.
You didn't say what version of LV you are using, but for LV6i Use the System Exec.vi (its under the communications Palette) -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Daniel Alejandro Moyano Sent: Tuesday, March 02, 2004 9:26 PM To: Info-LabVIEW Mailing List Subject: DOS comand. Hello! Is it possible to execute a DOS comand from LabView. I mean, if I would need to execute copy (.txt file) lpt1, How could I do it? Daniel
RE: Language Independence on Serial Output of .
Guy, If you use a format specifier of %.; to format your code prior to sending it out, you wont have this issue. If you don't use any format, the system default will be used. and different systems will have different defaults. To strictly control this format to be the same everywhere, add the format identifier. Refer to the localization code entry in the Help reference... HTH Rick M. Lockheed Martin Corp. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Holland, Guy Sent: Monday, March 08, 2004 12:15 PM To: [EMAIL PROTECTED] Subject: Language Independence on Serial Output of . I have an application that outputs a string with numbers via the serial port. Ex. SG1.23,4.56,7.89. I developed the application in English but when the application was installed onto a Non-English say Holland language, the output string turns into SG1,23,4,56,7,89. The periods are replaced with commas. I believe it might happen with all languages that use commas ($1,00) rather than periods ($1.00). How can I get around this problem so that my application can be language independent? TIA, Guy Holland Intralase Corp.
RE: Labview and windows 2000 Arggggh!!!
I do this extensively with no problems... Sounds to me like this is not a LabVIEW prob... Rick -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Scott Serlin Sent: Thursday, February 05, 2004 3:17 PM To: info-labview Subject: Labview and windows 2000 Arh!!! Has anyone had any problems copying VIs on a network from one machine to another in Windows 2k? I have rebooted both machines and keep getting this irritating message from windows that it cannot copy the VI because the VI is already in use. Why, oh why, is this happening? The permissions look ok on the machine. How do I get labview to fix the right path to its files?
RE: Teststand help
In LabVIEW, there are TestStand Native VI's for: Get Boolean, Set Boolean, Get String Set String Get Number, Set Number Get Variant, Set Variant etc. These are all available in the scalar, or array variety, (and I've actually created multi-dimensional array VI's also.) and these are available from the TestStand Pallet on the LV Block Diagram and Front Panel If these TestStand VI's are not available, you may need to either reinstall TS, or find the TS .llb on NI web site and download and copy it to the vi.lib directory under LV. In TS, you need to wire a sequence reference in to the LV connector from TS. You must enable the Sequence reference check box in TS's Specify module dialog. Then use the Seq Ref and wire to the TS VI's and pass data back and forth at will. The variable can be accessed via name stored on the Locals tab of any sequence. These are referenced by Locals.variablename in LV. actually, the examples are quite good for this detail... Rick Mahoney Equipment Test Design Lockheed Martin Corp Syracuse, New York 13221 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Scott Serlin Sent: Wednesday, February 04, 2004 12:03 PM To: [EMAIL PROTECTED] Subject: Teststand help Can anyone help me pass variables from my VI into teststand to run the pass/fail test? I'm able to get my VI to run but cannot get the info out of my VI and into teststand after the VI runs. How do I do this? How do I also pass that info into the pass/fail test? Any other teststand tips would be appreciate. Thanks. Scott
LV Init files
wirers; I have a question that may be more of a windoze question than LV, but maybe, on the chance that maybe LV has the power, here goes... When I go to the File -- Open menu selection, (or the ... selection on the Block diagram palette), the first thing I do every time to search through the list of vi.'s (sometimes a substantial list) is to Change the files displayed from small icon, to a detailed list and then I click on the date header to sort by date modified (because, usually, I want to open files recently modified). Is there a setting someplace, like an init file setting or a registry setting, that will allow the file explorer window to open in this mode automatically? I realize its only 2 more clicks per file open dialog, but over the course of the day that could add up to 4 clicks ;- Just trying to get more efficient! Thanks in advance Rick Mahoney Lockheed Martin Corp. Syracuse, NY
