Insert teletext
Hi all, I have an application wherein I have to insert teletext or video images during the vertical blanking interval of the composite video signal. I am looking at NI 5431 Video signal generator card which can test Television broadcast equipments. Also the test signals are in .trp file (MPEG-2) format. Any information on how to insert Teletext using NI 5431 will be of great help. Best Regards Bipin M Application Engineer, Captronic systems Pvt Ltd. Koramangala I Block, Bangalore-560 034 #+91-8025535046,25526961 www.captronicsystems.com
RE: New solution for OS X
Urs, you wrote on June 11: I personally prefer a real RT controller over a gray PC box. However this of course could be a viable option too, a bit bulky maybe. Will the PharLap OS control any DAQ boards in the PC box the same way it does it on a PXI form factor chassis. I had this opinion too when I had to decide what to buy as the base for an industrial test system. I took a PXI-1010 combo chassis and a MXI-3 data link to a PC. Sounds good and has a good technical base, but is horribel to work side-by-side. Not really like a starting chessna airplane, but really disturbingly loud. It is designed to work in a rack housing. And thats what might be the only possibel solution in the long run (but can't be achieved in my case). Anyway, a good PC (or Mac or whatever) is much more convinient to work aside. AND, in my opinion, a modern (desktop) PC is even less bulky than the PXI-1010. Just my 0.02! Greetings from Germany! -- Uwe Frenz ~ Dr. Uwe Frenz Entwicklung getemed Medizin- und Informationtechnik AG Oderstr. 59 D-14513 Teltow Tel. +49 3328 39 42 0 Fax +49 3328 39 42 99 [EMAIL PROTECTED] WWW.Getemed.de
Re: the output string in RS232
Hi Dr. Imad, You said you waited a few ms before reading the rs232 port. How do you code this in labview? How do I make labview wait a few ms before I do the reading? Thank you, Van
Re: Access to Application.ini
Hey that looks really nice! I'm running Labview 7.0 and when i load your vi I can't find 'Strip Path Extension_ogtk.vi' and 'Strip Path X times.vi', where can i find them?
Fw: Keystrokes
Hi, any help on sending keystrokes to other application? Regards Nuno
PID Advanced Integral Action (DBL).vi(vers.6.0) (is there a bug)?
Is there a bug in: PID Advanced Integral Action (DBL).vi? If Initialize is true there is a select conected to the variable Initialize in the case structure, that does not make sence to me. Kindest regards, Stefan Pofahl
Re: PID Advanced Integral Action (DBL).vi(vers.6.0) (is there a bug)?
No, probably there is no bug! Forget my question! The case criterias are filtered through an Or operator. So even if initialize is false, the criteria for the case structure can be true. Kindest regards, Stefan Pofahl
Re: play video on lan
Hi, NI sells several frame grabber to acquire images from all kind of camera, the following link shows all the NI Machine Vision products: http://sine.ni.com/apps/we/nioc.vp?cid=1286lang=US You could use the NI-CVS to show the image acquired in a remote pc (see Compact Vision Systems link). Regards AlbertoA
Re: Is it possible to use a second network card for Labview
Thank you guys for your reaction on this. The problem is solved. It was,of course, not a Labview problem but a setting problem of my second card.
Re: How to create OPCDemo - Items
Hello Chris, unfortunately the OPCDemo OPC-Server only serves a fixed set of different values/functions. But the user has the possibility to modify e.g. the Sine function which is delievered: An original SINE item is: SINE:0.0..8.0:2.0 if you modify the name of the OPC-URL to SINE:-1.0..1.0:1.0 you can create a new item which delievers a sine from -1 to 1 with a periodicity of 2*1=3D 2 seconds. The OPCDemo OPC-Server now lists this new item in the group Created Items. Regards, Andreas W=FCrl NI Germany
Re: How to create OPCDemo - Items
Dear Andreas Thanks for your answer. I will use DSTP - Items for testing instead. Regards, Chris
Re: Graphing problem with two plots
Hi Tom, Take a look of altenbach example. This is a very good one to solve your problem. Bill
Re: Audio question
I guess the problem is how do you represent the samples (array of samples). The number of samples is the same. Read the size of the output array to be sure that the number of samples is OK.
Re: I have a problem using COM
Hi Stephen, As you mention in your question the problem you are experiencing is usually caused by not closing a reference correctly. I have been looking at your code for this application and I have a couple of questions I'd like to ask you about it which will help me research your problem further. Firstly you mention that you have 5 vi's but you have only posted 3, please could you post the remaining 2 vi's. I also do not have the ActiveX server object that you are using, InletKernelInterfaceLib which is a .dll or .exe file. Could you also post a 'walk-through' of your code as well so I can understand better what is going on there. On a different note have you tried running the vi's without the ActiveX server? Did it work then? have you tried splitting the code to determine where the problem may lie? I look forward to hearing from you, Best Regards, Chris Mead National Instruments (UK)
How can I display a TTL- Signal which is impressed at a serial- or a parallel port
We want to create a lab view program which shows us a TTL- Signal which we get from a resolver . The problem is we have to use the parallel or the serial port to get the Signal into the computer. We tried to show the Signal at the Serial port with VISA but it didn't work. And for the Parallel port we didn't find a solution. So the question is, is it possible to show a signal without using lab view hardware
RE: Password
Hamid Shojai [EMAIL PROTECTED] 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? Please help me. May be, of course when more important things have been accomplished by NI, there could be an entry for a phrase or something to assist the creator in remembering the password he entered 50 some projects ago. Roger A. Coffmon Senior Design Engineer, ATE * [EMAIL PROTECTED] ' 614-841-5871 Liebert, NA http:\\www.liebert.com Emerson Network Power http:\\www.gotoemerson.com Consider It Solved This e-mail is intended only for the addressee named above. As this e-mail may contain confidential or privileged information, if you are not the named addressee, you are not authorized to retain, read, copy or disseminate this message or any part of it.
VIs for NIWeek GBnU
I hope I'm not annoying anyone yet, but I'm still looking for guinea pig VIs that Christina and I can try to improve for the presentation. In case you haven't seen the previous posts, we request submissions and try to fix the things that the author had difficulty accomplishing. Sometimes it is performance, othertimes it is an unprofessional panel, or perhaps the VI works, but they had problems making the code readable enough. The presentation at NIWeek has few slides and consists of looking at the before and after pictures. Pointing out the good and clever things that were already there, looking at how the bad things could have been done differently, and looking at the ugly things and seeing if they can be made pretty. So, if you have the time and would like to help make our NIWeek sessions more successful, please consider sending a good, bad, or ugly VI suite to [EMAIL PROTECTED] along with some description of what you were trying to do and what things you wished had turned out better. The VIs will be made anonymous and the presentation will be very interactive. Join us if you can for the NIWeek session. Greg McKaskle
arithmetic average with LabVIEW 6.1
--3923272.1087216678518.JavaMail.quiq.tekken Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Hallo, I have an array containing six rows and 3 columns. My task is to calculate the arithmetic average of the elements in the columns and add it as a seventh row to the array. How can I do that? I added a txt-file with the array. --3923272.1087216678518.JavaMail.quiq.tekken Content-Type: text/plain; name=test1.txt Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename=test1.txt Content-Description: array 2,000 9,000 16,000 3,000 10,000 17,000 4,000 11,000 18,000 5,000 12,000 19,000 6,000 13,000 20,000 7,000 14,000 21,000 --3923272.1087216678518.JavaMail.quiq.tekken--
VIs for NIWeek Session
I hope I'm not annoying anyone yet, but I'm still looking for guinea pig VIs that Christina and I can try to improve for the presentation. In case you haven't seen the previous posts, we request submissions and try to fix the things that the author had difficulty accomplishing. Sometimes it is performance, othertimes it is an unprofessional panel, or perhaps the VI works, but they had problems making the code readable enough. The presentation at NIWeek has few slides and consists of looking at the before and after pictures. Pointing out the good and clever things that were already there, looking at how the bad things could have been done differently, and looking at the ugly things and seeing if they can be made pretty. So, if you have the time and would like to help make our NIWeek sessions more successful, please consider sending a good, bad, or ugly VI suite to [EMAIL PROTECTED] along with some description of what you were trying to do and what things you wished had turned out better. The VIs will be made anonymous and the presentation will be very interactive. Join us if you can for the NIWeek session. Greg McKaskle
RE: VIs for NIWeek GBnU
OK, I don't have a VI to show, but I couldn't help passing this on as GBnU. One of my co-workers is a part-time LV programmer. He will have me look at his code when he is done. About a year ago he wrote (yet another) program that relied heavily on global variables. Not just for passing data between VIs, but also to get data from one side of his multi-screen diagrams to the other side. Of course, I told him global variables are hardly ever the correct way to do things. I assumed he would wire things directly. I couldn't help but laugh when I saw his solution. Everywhere he had had a global write was replaced with an indicator and everywhere he had a global read was changed to a control. Then he created a DataSocket connection for each control and indicator to pass data between them! Finally he hid all the controls and indicators to clean up the mess he made on the front panel. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Greg McKaskle Sent: Monday, June 14, 2004 8:43 AM To: [EMAIL PROTECTED] Subject: VIs for NIWeek GBnU I hope I'm not annoying anyone yet, but I'm still looking for guinea pig VIs that Christina and I can try to improve for the presentation. In case you haven't seen the previous posts, we request submissions and try to fix the things that the author had difficulty accomplishing. Sometimes it is performance, othertimes it is an unprofessional panel, or perhaps the VI works, but they had problems making the code readable enough. The presentation at NIWeek has few slides and consists of looking at the before and after pictures. Pointing out the good and clever things that were already there, looking at how the bad things could have been done differently, and looking at the ugly things and seeing if they can be made pretty. So, if you have the time and would like to help make our NIWeek sessions more successful, please consider sending a good, bad, or ugly VI suite to [EMAIL PROTECTED] along with some description of what you were trying to do and what things you wished had turned out better. The VIs will be made anonymous and the presentation will be very interactive. Join us if you can for the NIWeek session. Greg McKaskle
Re: LabView does not see the same COM port numbers as windows XP
Can you explain what the difference is? What does the VISA name control show? What does Windows show? Brian
Re: arithmetic average with LabVIEW 6.1
Hi Lauren, thanks for the answer. Your idea works, but I need a more generous version: I have to extract the rows from a 2D-array, compute the arithmetic average of each row and add this value as a seventh column. Finaly I merge the rows together again to one 2D-array and save it to a txt-file. By the way, it won't have three rows, but more than 20. The VI should count the number of needed rows by itself. Perhaps someone can help me now. Arno
Re: Custom Run-Time Toolbar in Labview
Hi cplaw for creating your personal runtime-menu you open the dialogbox under Edit-Run-Time Menu. If you want to create a toolbar i fear you have to use some ActiveX (Microsoft Toolbar Control). This Control is embedded in the ActiveX-Container, and therfor part of the panel. If you can abandon buttons i recommend to use only the Run-Time Menu (Programming the Tollbar-Control is not that hard, but i encountered several problems with differing versions of the control/LabView on several machines). regards chris
Re: How can I display a TTL- Signal which is impressed at a serial- or a parallel port
You serial port didn't work because the RS-232 signals are not TTL. They are +3V and -3V. Your parallel port should be able to do the trick though. You can use the Inport function (AdvancedPort I/O palette) to read. There is a brief tutorial A href=http://zone.ni.com/devzone/conceptd.nsf/webmain/72C6FC6CE4AD4D1386256B1800794596?opendocument;here/A. If you have LabVIEW 7 or greater, you can ignor the part about additional drivers required for WinNT and W2K. They are no longer required.
Re: What is error 2042300?
In regards to the error number 2042300, I am not finding any reference to that error message, which is a little unusual. If it is a LabVIEW error number, then you can generally see the description of the error by opening LabVIEW and then going to the Help Menu and selecting Explain Error... from the menu. I am glad to hear that everything is working for your application now, and it sounds like the error message was not indication anything missing from LabVIEW or any larger problem, but simply the fact that it was not finding the IMAQ VIs that it expected.
System Replacement Question
This may be question which doesn't belong in this list. But with all the experts in measurement and automation visiting this list, I thought I will try. Sorry if this is considered an intrusion. What I have is a request to replace an existing LabVIEW/DSC based test system running on late 80's hardware (Acromag 4100 series). The system is used to set up and run various tests at various locations within a high voltage testing laboratory. One of the tests we run is voltage/temperature endurance test where the UUT is heated to 100+ F and subject to 30KV for 400-600 hours. The requirements of the new system is high channel-to-channel isolation (1500V or more), read input AC rms as well as DC (5-150V), thermocouples etc. Must be able to view and control the tests remotely using networked and/or dial-in. Send alarms (by phone/email). Some tests run continuously for days. I know I can meet the communication requirements (alarm, control etc.) using LabVIEW/DSC. But what the client is looking for is off-the-shelf products which require minimum to no programming. I know this is very sketchy. All I am looking for at this time is a starting point for my investigation. Any help is truly appreciated. Thanks in advance. V. P. Nair American Electric Power [EMAIL PROTECTED]
Re: Read Serial Port 6.1
First, I'd recommend that you try using VISA for serial I/O. It's more robust. It sounds like you might just be having problems with hardware flow control. Do you have it enabled on your instrument? If not, I would try enabling it, and enabling it with VISA in your application. If you are getting messages that are terminated by end-of-line characters (or some other message that's not part of the data), then I would investigate the solution that Dennis recommended. I hope this helps. Brian
Was: New solution for OS X, Now: RT-FIFO?
Uwe et al. You are right, the small PXI-1002 Chassis I got was so awfully load that I had to modify it with a new temperature regulated silent ventilator. Now it is almost as silent as my nifty i-Mac which hums so silently that I can barely tell its is on at all. I program my PXI from an i-Mac and that's fun. I am actually right now waiting for the LV 7.1 RT-Modules for MacOS-X because I found some misbehavior with the RT-FIFO VIs. Has anybody else had difficulties with RT-FIFOs under MacOS-X? That was with the LV7 Modules and hopefully things will clear up with the LV7.1 ones. Cheers Urs Urs Lauterburg Physics demonstrator LabVIEW wireworker Physics Institute University of Bern Switzerland Urs, you wrote on June 11: I personally prefer a real RT controller over a gray PC box. However this of course could be a viable option too, a bit bulky maybe. Will the PharLap OS control any DAQ boards in the PC box the same way it does it on a PXI form factor chassis. I had this opinion too when I had to decide what to buy as the base for an industrial test system. I took a PXI-1010 combo chassis and a MXI-3 data link to a PC. Sounds good and has a good technical base, but is horribel to work side-by-side. Not really like a starting chessna airplane, but really disturbingly loud. It is designed to work in a rack housing. And thats what might be the only possibel solution in the long run (but can't be achieved in my case). Anyway, a good PC (or Mac or whatever) is much more convinient to work aside. AND, in my opinion, a modern (desktop) PC is even less bulky than the PXI-1010. Just my ¤ 0.02! Greetings from Germany! -- Uwe Frenz ~ Dr. Uwe Frenz Entwicklung getemed Medizin- und Informationtechnik AG Oderstr. 59 D-14513 Teltow Tel. +49 3328 39 42 0 Fax +49 3328 39 42 99 [EMAIL PROTECTED] WWW.Getemed.de
RE: VIs for NIWeek GBnU
There is a huge collection of native LV drivers on the NI web site, and many (if not most) could do with SOME cleanup. Since test performance can be drastically affected by driver efficiency, maybe reviewing the driver style guide as a NI Week program would be in order. I've shuddered at many drivers I've downloaded over the years, some rewritten some from scratch. Take a look at the Quadtech Digibridge 1689 drivers( http://zone.ni.com/idnet97.nsf/9b2b33e1993d877786256436006ec498/c22867581727 10ac86256d81006a30da?OpenDocument ); they were made some 10 years ago, but they make me laugh. The use of locals between frames in a sequence which do nothing, combined with complex subvi's that can be replaced with one or two functions on the source vi panel should make for interesting discussion. I give this only as an example; this is an relatively ancient driver and instrument (not even 488.2 compliant). I have 5 in my office that make up a good portion of our business though :-( I'm fully aware of newer instruments (including from Quadtech) with good drivers and SCPI. Alas, I work for a small company that can't afford to send me to NI week, but all of my friends from former employers that have attended rave about the various programs and the night life! As a side note, I don't think I've ever met a LVer that couldn't resist improving even the best written drivers (including me!). -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Greg McKaskle Sent: Monday, June 14, 2004 8:43 AM To: [EMAIL PROTECTED] Subject: VIs for NIWeek GBnU I hope I'm not annoying anyone yet, but I'm still looking for guinea pig VIs that Christina and I can try to improve for the presentation. In case you haven't seen the previous posts, we request submissions and try to fix the things that the author had difficulty accomplishing. Sometimes it is performance, othertimes it is an unprofessional panel, or perhaps the VI works, but they had problems making the code readable enough. The presentation at NIWeek has few slides and consists of looking at the before and after pictures. Pointing out the good and clever things that were already there, looking at how the bad things could have been done differently, and looking at the ugly things and seeing if they can be made pretty. So, if you have the time and would like to help make our NIWeek sessions more successful, please consider sending a good, bad, or ugly VI suite to [EMAIL PROTECTED] along with some description of what you were trying to do and what things you wished had turned out better. The VIs will be made anonymous and the presentation will be very interactive. Join us if you can for the NIWeek session. Greg McKaskle
GRASS S44 Stimulator Driver
Anyone got a driver for GRASS S44 Stimulator ? George Zou http://gtoolbox.yeah.net _ FREE pop-up blocking with the new MSN Toolbar get it now! http://toolbar.msn.click-url.com/go/onm00200415ave/direct/01/
RE: VIs for NIWeek GBnU
Check out the VI's for the 17xx series and the 1030 series instruments on the web site www.quadtech.com The example interface programs for these fit into the later of the two requirements. G,B,U. -Norm -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: Monday, June 14, 2004 10:54 AM To: [EMAIL PROTECTED]; Greg McKaskle Subject: RE: VIs for NIWeek GBnU There is a huge collection of native LV drivers on the NI web site, and many (if not most) could do with SOME cleanup. Since test performance can be drastically affected by driver efficiency, maybe reviewing the driver style guide as a NI Week program would be in order. I've shuddered at many drivers I've downloaded over the years, some rewritten some from scratch. Take a look at the Quadtech Digibridge 1689 drivers( http://zone.ni.com/idnet97.nsf/9b2b33e1993d877786256436006ec498/c2286758 1727 10ac86256d81006a30da?OpenDocument ); they were made some 10 years ago, but they make me laugh. The use of locals between frames in a sequence which do nothing, combined with complex subvi's that can be replaced with one or two functions on the source vi panel should make for interesting discussion. I give this only as an example; this is an relatively ancient driver and instrument (not even 488.2 compliant). I have 5 in my office that make up a good portion of our business though :-( I'm fully aware of newer instruments (including from Quadtech) with good drivers and SCPI. Alas, I work for a small company that can't afford to send me to NI week, but all of my friends from former employers that have attended rave about the various programs and the night life! As a side note, I don't think I've ever met a LVer that couldn't resist improving even the best written drivers (including me!). -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Greg McKaskle Sent: Monday, June 14, 2004 8:43 AM To: [EMAIL PROTECTED] Subject: VIs for NIWeek GBnU I hope I'm not annoying anyone yet, but I'm still looking for guinea pig VIs that Christina and I can try to improve for the presentation. In case you haven't seen the previous posts, we request submissions and try to fix the things that the author had difficulty accomplishing. Sometimes it is performance, othertimes it is an unprofessional panel, or perhaps the VI works, but they had problems making the code readable enough. The presentation at NIWeek has few slides and consists of looking at the before and after pictures. Pointing out the good and clever things that were already there, looking at how the bad things could have been done differently, and looking at the ugly things and seeing if they can be made pretty. So, if you have the time and would like to help make our NIWeek sessions more successful, please consider sending a good, bad, or ugly VI suite to [EMAIL PROTECTED] along with some description of what you were trying to do and what things you wished had turned out better. The VIs will be made anonymous and the presentation will be very interactive. Join us if you can for the NIWeek session. Greg McKaskle
Selling Useful routines
Hello I have ( what I consider to be ) a useful set of VI's to manage configuration files and parameter data as functional globals. They have been elaborated over several years and I think that they are ready for a wider audience. Some members of this list sell libraries and I'd like to get some feeling for the most suitable way to earn some money this way. Selling routines without diagrams seems a chancy business for the buyer, since a LabVIEW version upgrade in the middle of a project can cause your program to stop compiling. Do people really send you money when they sell a program which incorporates a shareware component? Or do they just forget where they got it from. How price sensitive are people? It's almost as easy and surely more satisfying to sell 10 copies for $200 as one for $2000. Does NI (or do you) have some legal grip on the word Tool Kit as in Configuration File Tool Kit ? I'd appreciate the views of Buyers and Sellers both and also those who will never buy. Yours Sincerely John John Brohan National Instruments LabVIEW expert in Montreal Traders Micro We connect all sorts of things to computers 317 Barberry Place DDO Montreal PQ Canada H9G 1V3 Tel (514)995-3749 [EMAIL PROTECTED] http://www.TradersMicro.com/Index.htm
RE: Selling Useful routines
I would also be interested this information. Please include me in any replies to this thread. Norman J. Kirchner Jr. Automation Software Engineer Engineering Specialists, Inc. (262)783-8000 (262)783-8001 Fax -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of John Brohan Sent: Monday, June 14, 2004 12:53 PM To: [EMAIL PROTECTED] Subject: Selling Useful routines Hello I have ( what I consider to be ) a useful set of VI's to manage configuration files and parameter data as functional globals. They have been elaborated over several years and I think that they are ready for a wider audience. Some members of this list sell libraries and I'd like to get some feeling for the most suitable way to earn some money this way. Selling routines without diagrams seems a chancy business for the buyer, since a LabVIEW version upgrade in the middle of a project can cause your program to stop compiling. Do people really send you money when they sell a program which incorporates a shareware component? Or do they just forget where they got it from. How price sensitive are people? It's almost as easy and surely more satisfying to sell 10 copies for $200 as one for $2000. Does NI (or do you) have some legal grip on the word Tool Kit as in Configuration File Tool Kit ? I'd appreciate the views of Buyers and Sellers both and also those who will never buy. Yours Sincerely John John Brohan National Instruments LabVIEW expert in Montreal Traders Micro We connect all sorts of things to computers 317 Barberry Place DDO Montreal PQ Canada H9G 1V3 Tel (514)995-3749 [EMAIL PROTECTED] http://www.TradersMicro.com/Index.htm
switch 1127
I'm having lots of problems in using the NISwitch 1127 because of the niswitch_32.dll (installed by the NIdaq7.0). Can any one explain me the error that i'm commiting? Thanks and regards!
Re: Delay a sequence for a specific time.
Thanks Bill. Van
How can I get a Visa Reference Number on a Spectrum Analyzer?
I have a GPIB Address of 18 on a 8593 EM Spectrum Analyzer. How can I get a VISA reference Number for my VI program
Re: Basics 2 CBT - Requires Acquire Signal.vi - not on disk
Thank you.
Re: text to enum
As Wiebe says, you get the error code 1000, is there a way to avoid this? Best regards, Stefan
Re: DAQ Assistant not initializing
No luck. Enabling sharing did nothing. -Dave
Run-Time application does not load correctly
If I build the App in LV6 and install it works. When I build the App in LV7, the app will not load correctly; ie. it takes about 5 minutes to load. This only applies to Win2000 - my XP machine loads the GUI fine.
Re: LabView for Linux
There is no NI-DAQ for Linux.
Re: Reusable Code
Since LV 6.0, you can create a control reference for a particular control/indicator whereby that reference can be passed as an input to subVIs so that control/indicators properties in your main VI is accessible in a subVI. This saves a lot of property node re-creation! You may want to search the LV docs for control references for more info. Robert
Re: Run-Time application does not load correctly
Hi: Can you supply the app and the build file? I am in front of a WIN2K machine and I'll try to build it in LV7.0 and check it out. Robert
Re: Run-Time application does not load correctly
LabVIEW now uses the Microsoft installer. It's possible that you need to upgrade the version that's on the Win2K box. I think the latest service packs from Microsoft include it.
Re: how to save my 3 channel data like this
Thank you so much, this is what I'm really looking for.Thank
Re: LabView for Linux
But there is some sort of drivers for Linux, whatever their name is, so that an NI card can work under Linux, right? Am I right assuming that NI-DAQ refer to the drivers, or does NI-DAQ include something else ? Philippe
Re: Home automation, lonworks, eib, backnet, dali, etc
I've used LabVIEW to control X10 devices in LV5.0 days. The protocol was very simple where you could use the simple serial VIs to transmit and read the response(s). Some manufactures do not send protocol/command information so make sure you request and read the manufacture's documentation before proceeding. Should be a snap. Robert
Reusable Code
I am writing a program in which I need a lot of buttons to appear and dissappear at certain times. Namely, I need about 80 to 100 items to become invisible every time one of about 20 buttons on my front panel is pressed. I'd prefer to find a way to do this without having to make 20 copies of the 80 to 100 property nodes that its already going to require to make the program. So is there a way I can use variables or something else to allow me to reuse the code that will make the items all non visible?
Re: LabView for Linux
There are no NI provided drivers for Linux. You can check your DAQ board and see if it has a A href=http://www.ni.com/linux/daq_comedi.htm;comedi/A driver or write your own using the A href=http://sine.ni.com/apps/we/nioc.vp?cid=11737lang=US;Hardware DDK/A. You would have to replace all of the DAQ functions in your existing programs.
Re: Running the same VI concurrently
You should probably do a little reading to learn about reentrant VIs so you know when and when not to use them. There is an application note (a href=http://zone.ni.com/devzone/devzoneweb.nsf/opendoc?openagent75C636329327A87B862568690074800Acat=8ABEC12D4C0AA4A3862567AC00583899;Using LabVIEW to Create Multithreaded Applications for Maximum Performance and Reliability/a) which discusses marking VIs as reentrant (section labelled Simultaneously Calling SubVIs from Multiple Places). You can get a link to this app. note by opening LabVIEW's help, selecting the Index Tab and entering reentrant (or just select the link above :) ).
Re: LabView for Linux
Thank you for the clarification. - I was confused by Rolf's message because I was assuming that, although they are not the same, the DAQ drivers for Windows or for Linux are functionnally equivalent, and this should be pretty much transparent to an end-user like me. - I am currently using ActiveX controls, and I understand that these will no longer work under Linux. Thank you Philippe
Re: Using a PC4350 DAQ and/or a PC-LPM-16/PnP DAQ under Labview 7.1
The PC-LPM-16/PnP is not supported by NI-DAQ 7.0 or higher. In order to use this board, you will have to install NI-DAQ 6.9.3 or older (see Versions link below). This will use the Traditional driver. As you noted this device is not supported by NI-DAQmx. There are numerous examples that ship with LabVIEW that should illustrate how to use this board. As for the PC4350, what version of the driver did you install? a href=http://www.ni.com/support/daq/versions.htm;NI-DAQ Version Reference/a
Re: Web Publishing problem
thanks so thats the problem.
Re: LabView for Linux
I believe Rolf means that the NI-DAQ driver that is being used on your Windows machine is not going to be the same as your Linux machine. NI-DAQ VIs on a Windows machine will be making a call to a dll which would not be available on your Linux machine. Anything in your VI that is referencing Windows API specific calls would clearly not work. Is there anything specific that you are worried about not working?
Re: LV7 How to click on an xy chart and identify the data point selected
Yes, I agree it is not very pratical. I would prefer if the true x,y coordinates could be obtained directly in the event structure. In addition to the Coords terminal, we also need a terminal that provides the coordinates directly in the true plot units. That would definitely be very useful. Make sure to suggest it to NI (I have, long ago!).
Re: OPC et Drive Server OPC
Bonjour, Quel type de m=E9thode utilisez-vous? Connectez-vous les objets de la face-avant directement =E0 une connection DataSocket? Utilsez-vous les VIs DataSocket de la palette int=E9gr=E9e de LabVIEW ou les VIs dis de compatibilit=E9? Les VIs de compatibilit=E9 donnent de meilleures performances car ils ne font pas une ouverture et une fermeture de connection =E0 chaque =E9criture/lecture d'un item OPC. Le taux de mise =E0 jour peut d=E9pendre de nombreux param=E8tres: * deadband update rates des items configur=E9s dans le serveur OPC * puissance du PC (polling du client DataSocket sur le serveur OPC) * mode de fonctionnement des VIs DataSocket (Read ou ReadAutoUpdate). Les taux de transfert pour une communication OPC en DataSocket peuvent aller de 100ms =E0 1s (pour 100 items). Cette technologie ne permet pas de toute fa=E7on de faire une communication rapide (plut=F4t d=E9di=E9 =E0 = la supervision lente). Cordialement.
Re: Basics 2 CBT - Requires Acquire Signal.vi - not on disk
Hello, In addition to installing LabVIEW eval, you also have to install the Basics2.llb. The instructions from the ReadMe file: Copy the Basics2.llb file from Course Disc 1 to the labview\user.lib directory. This is usually stored in [drive letter]\Program Files\National Instruments\LabVIEW\user.lib. To make the Basics2.lib show up under the user.lib on your functions palette, please review the following KnowledgeBase: a href=http://digital.ni.com/public.nsf/websearch/1D0D514BC3852BFD8625685F007BC976?OpenDocument;How Do I Add Custom SubVI to the Functions Palette?/a Also, make sure that you have DAQmx installed. The LabVIEW Evaluation Version gives the option of installing simulation DAQ VI's. If the complete install option is chosen, the simulation VIs are installed. To avoid this, choose a custom install and don't allow the Evaluation Version to install NI-DAQ. After the LabVIEW Evaluation Version is installed, install NI-DAQ and include support for LabVIEW 7.0. The DAQ VIs will now read data from your DAQ device. There is a link to the NI-DAQ download page below. a href=http://www.ni.com/support/daq/versions.htm;NI-DAQ Driver Support for Windows/a Zvezdana S. National Instruments
Re: Is there any way to have more than 28 connection terminals?
It seems that you have two limiting factors. 1) LabVIEW does not allow for more a 28 terminal connector pane, and 2) the software interface on the other system. There is not going to be a way to increase the number of terminals in LabVIEW. You should definitely look into using clusters. You=92ll be able to consolidate your controls so that only a single terminal pin is used. Then you will be able to extract those controls and perform whatever type of manipulation on them individually. I wouldn=92t think you would have any problems with this type of coding with your software interface, but that=92s something you will have to investigate.
Re: how do I set the ExTrig of a Basler A602f camera to falling edge?
Bernd, Thank you for contacting National Instruments. One thing to be sure to check when using the Configure Trigger VI is that the Trigger Mode is set correctly to the desired behavior. From the brief description you gave, it sounds like Mode 0 (or possibly 1 or 2) will be what you want for your application. By default, the trigger will run off of the falling edge. If you have not had a chance to look over it yet, glance through the help for Configure Trigger VI to see a description of the inputs. There are also a number of VIs included with the IMAQ 1394 Driver that allow you to programmatically control the camera and set attributes associated with the driver. If you wish to change camera specific attributes, then you can use the IMAQ1394 Write Registers VI (located in the IMAQ IEEE-1394 Low level subpalette) to change register level settings on the camera. You will need the camera documentation in order to know what register and information to write. Depending on the camera, then all of the trigger modes may or may not be supported. The modes outlined in the help are valid for low-active polarity. If your camera needs to be specifically changed with a Trigger_mode control register, then you will need to read that information from Basler and then, if they have a configuration tool use that, or you can use the LabVIEW VIs to modify that register. Regards, Michael Applications Engineer National Instruments
Re: Can't use the Measurement Automation Explorer in the dl eval version
Hello, You should be able to use MAX with LabVIEW eval. To make sure MAX is installed, go to ..\Program Files\National Instruments\MAX If you have NIMax.exe, MAX is installed. Even if you don't have LabVIEW installed, you should still be able to open MAX from this location. Do you get this error when launching MAX from its installation directory, or when opening some of the LabVIEW wizards that call MAX? The LabVIEW Evaluation Version gives the option of installing simulation DAQ VI's. If the complete install option is chosen, the simulation VIs are installed. To avoid this, choose a custom install and don't allow the Evaluation Version to install NI-DAQ. After the LabVIEW Evaluation Version is installed, install NI-DAQ and include support for LabVIEW 7.0. The DAQ VIs will now read data from your DAQ device. There is a link to the NI-DAQ download page below. a href=http://www.ni.com/support/daq/versions.htm;NI-DAQ Driver Support for Windows/a a href=http://digital.ni.com/public.nsf/websearch/402D2EB45062FBC486256DD600634695?OpenDocument;Using the DAQ Assistant or Creating a DAQmx Task in LabVIEW 7.0 Evaluation Version/a a href=http://digital.ni.com/public.nsf/websearch/8968DE19FB0EAC8886256D55004FCC06?OpenDocument;Frequently Asked Questions about the LabVIEW 7.0 Evaluation Version/a Zvezdana S. National Instruments
Re: arithmetic average with LabVIEW 6.1
--829612.1087229344316.JavaMail.quiq.tekken Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Quick note: If you use Read from spreadsheed file, you only need the tiny FOR loop, that's it! --829612.1087229344316.JavaMail.quiq.tekken Content-Type: image/gif; name=Add_column_with_average.gif Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename=Add_column_with_average.gif Content-Description: Code Image R0lGODlheAGCAKIAAGNlY/99AP+mSgAA///btf//zv///ywAeAGCAAAI/gAPCBxIsKDB gwgTKlzIsKHDhxAjSpxIsaLFixgzatzIsaPHjyBDihxJsqTJkyhTqlzJsqXLlzBjypxJs6bNmzhz 6tzJs6fPn0CDCh1KtKjRo0iTKl3KtKnTp1CjSp1KtarVq1izat3KtavXr2DDih1LtqzZs2jTql3L tq3bt3Djyp1Lt67du3jz6iVKoK/fv4AJABhMuLDhw4gTK17MuLHjx4f3ShYYuLJftwAmS+5roLPn z537Yh6sOS9nAwRApw5NAPOBzKXvnj4d2rPotpkJx647m/Zq1K1xvx6+e27v2baDs81NvHhc5H5R J3fN3Pnz1dijs6be3Lpb5Kx//t9ePhy29+/YP/tWvpa5+fNswdueLrw6/Pi/Qatnr9b9/ba06Ucf efb9l5ZllnH3noFnIViZggz2N5l/EEFm4YUYZqjhhhxuuNOCeFH4EIgRVkQiTSfWJaJDKZYYUYsx wSjXig3JaFSBJeGokI0J8diSjxBWKBBpKqVIIpA6jpQkQkAa1GSRE5b34pBPZlTliN3lmOWOFl15 kpdo0chQdbD5VyaR5i2o22torukmmmzCWdhAczIJ55BUlkncmnGe2eKbeqYZJ5t5CqoTmGeJuRCZ VDZakH3vRUpnc0mKaCmlY2IqKJEEQYrpQZLi6ameUuK5ZU2ImqUol6QaWqio/492Oummneo2qqaT 2ilnoQXOuWmdTsoKK617fpqqklEu2WNkrhqKY6ilRkvrtLPmGqypjAqLK6yLantpq8Z+mOypO0ra rLUgQnurqVJSyy2557Lr6bvzXiuvtMXiS+5Mx5K16rKyutqntbX6eS+hA9/qLJ9O8hnpna8OPOiy Bu9pK7bhHjpuk2D2y5HHNcIE8kcjg/Uvk13yy6mSK/8ormQng9rhzDTXbPPNkL2MFM4MY6ksQgIE LfTQRBdt9NAussjziYoJBYCAUEetX5UxGySAR1cnnWlHTAtYMkkABKCY1waMXfZEVRc0QAFst912 RVlrzSWdM8NrQNB3C3D2SP5H9+230GEH4NnTnRFeduGIJ3743lP+fNDabQ8gOdsOCU1Q3HKjTPC+ KANw9NN6d6a353+XbvrpqAd++NOst8664oYT7mPTEEHO9uSUV4455pnbmy+pCNP97qN3ezY66sgb /bHYgzefuOzOLz671xHZDsDkkgctENIHaL/97r33GHC74GKc2+fFi854SN5r5PphUxeeWOEj5m1/ k9ZfX4Dk3V+t/f9xa1/3wqc5jOVrc+1ikv3w9rWCCBAjhpOa82I3wdSlr3ikQ13+ALC/AfSvf95r nwB5R0B2ZQl4WwqUAqdGkgdeJIISlB7ZymbB0GGwem0jTAc/CMAPfu9yJf70HWIOFqwl0U4kLuxS DD8DPdjRj0UXPB7y8rc2/vWwhz8cCAlLCC0DpmtYBUxJEk0kP8JETXbzW9+iFjg6HLLtelUcQAgt B0L/gS+I2vrdoHzlKCOyZIwUaeLimPi86MmufiysndtwV4CHjBCPeTRT48KIEkBarXSCfJ3rZOhE NZZriIqMHO50d0dIdqdVGILXH7cItDF1kpCcHOQhJZI2gtjObbmbCCvD10XOiQ9Uq3SkK8tWGKm9 zzBPnGSTdgk3U5oQlFMCJtgKE4BqWtNDnVqiNgeHtmiRMnmlc6Yvu+W7PIbkPda0ZiAftbRuOk6c JvFSz1QJtoKkM1c8av8gBL0JT5bkpjEN6xnTtGTPAAgrnzipZT/Pyc/hmdOEDyXZ1lRISX41dKEo MROn5gnRjnrUIzK6GOf0+cKLYjSe5BufNGO1UpGEtJwstYlCT8q1i1aqoh+t6dxU2lIUmZSmyPrn EP3UsoiO00oQRWhMUfVToDIURkjCKUiTutR4kTRl73RqTaG6R2xBbKkMJRTwelUtFPo0q1rdiOPG +il6IkusknRPXHP6kpmmtaREddMzvSXVrTqmPEI1zFFXYte7muiAXowkAumq1j7VLKFNNWxjzVo+ fbnVpe28SWElS0teRcaABxzoNBM419IOFkpo5exhdQpTkmVWppFV7Qv+XwtWkAT2sZqNrWx7clWv kkawv02MxSCb2t3mpLcW++0eDaZXxrqsuMbNbT1LJcnxfTG30I0uU6dLViOlkLin1S5sp9tRrtZW JpsVb4wI+jHwIle9UyUvEaMJ2+zCV2TsbVSb6CbU1q7Xvvd1SYocFJitlbVYFFWTewMMlAET+C8G vhcfqXve/4aXwXVNSICgNp5fouuU3FIwdi+MYZchZMMC6jAlF8Zcqo74vSUu6YnzAxzV8KenSH1x jHni4BiqWGY8W/CONTZjG9vYX7odsokPsuEm39gr6VVyfgvi5COPJcpSfiuTaexkJAM4y1o2SJX3 42USg1m+VOaymsuVDOMzs0jDarayWLDs5vhu2cdPrkrTvlxnO4v5wZfZynX53Of2zhjQeaaKiJNc 6DDHpYuEbnSO5yIwRkvatioqr5kv3Vi63LTNnK4wbgYK6lDzd2moTrWGxFdqUy/WLpF2dSBVTeta e6jVsnbuo3PtT1v7+tcA5bWwh03sYhv72MhOtrKXzexmO/vZ0I62tKdN7WpLNiAAOw== --829612.1087229344316.JavaMail.quiq.tekken--
Re: build an application probleme with active x
Hello, When you develop an application that contains ActiveX controls and then create an executable out of it, the ActiveX controls need to be registered with the target operating system at install-time. First, have a look to the KB below: How Do I Manually Register Type Libraries, ActiveX Controls, and ActiveX Servers? http://digital.ni.com/public.nsf/websearch/4F811A9B23F1D46E862566F700615B7A= ?OpenDocument If you want to have the LabVIEW .exe installer register an ActiveX dll, you can do as follow: To have the LabVIEW installer register an ActiveX dll for you, write a LabVIEW executable that uses the System Exec VI to register the ActiveX dll. Use the same command string as you would use in the Start =BB Run menu to register the dll. The System Exec VI is in Functions Palette=BBCommunications. When building the Installer under the Installer Settings=BBAdvanced... Select Run executable after installation and add the above executable to the Executable line. Therefore when the installer is finished your executable that registers the dll will automatically run. Concerning your issue executables using VIs for database, check the KB below if your building process is correct. Building Stand-Alone Executables With Database Connectivity Toolkit VIs http://digital.ni.com/public.nsf/websearch/FCCCBC6B519CEC2E86256C95007E8FA9= ?OpenDocument I hope this will help. Best Regards.
Re: LabView for Linux
Yes, NI-DAQ is the National Instruments developed driver used to control National Instrument cards in Windows and Mac operating systems. For Linux, National Instruments plug-in data acquistion products use the drivers developed by the Comedi project. For more information on this topic refer to a href=http://www.ni.com/linux/daq_comedi.htm;Open Source Drivrs for DAQ Products/a
Re: OPC et Drive Server OPC
je connecte directement les objets de la face avant ou sont les vi dis de compatibilit=E9?
Re: LabView for Linux
I didn't know that. Thank you for the clarification. Philippe
Compatibility issue with PXI1031, 64bit processor and windows xp
stream data on a 64bit AMD dual processor. Labview crashes once a while. Every time it fails, windows XP gets stuck at the loading logo page and refuses to load. is there a compatibility issue among the 64bit processor, the chassis and the OS? i'm running labview 7.1.
Re: How can I get a Visa Reference Number on a Spectrum Analyzer?
You must have a pretty old version of LabVIEW if you need a session ID instead of just a VISA Resource. If that's the case, you need to first use an VISA Open function in which you specify a resource name of GPIB::18. The open function will return a unique ID that you wire to either VISA Write/Read or a subVI in a driver.
Re: Application Builder and Fieldpoint
Hello! When creating a stand alone application using FieldPoint, you do not need to go to the Advanced Installer Settings tab to include the hardware configuration file. Just add the iak file as a support file in the Source Files tab when building the executable. It is important that the FieldPoint IO Point (tag) that you are specifying in the program you will build the executable from, is contained in the iak file you are including as a support file, otherwise LabVIEW will not find the tag. S. Vences Applications Engineer National Instruments
Re: How do I create an emergency stop custom control in LabVIEW that looks like an actual E-stop button
All of the above is excellent advice on custom controls in LabVIEW. National Instruments also has an Application Note located here, a href=http://zone.ni.com/devzone/conceptd.nsf/webmain/A9FBCAA7A3D7922186256A3000652B56;LabVIEW Custom Controls, Indicators, and Type Definitions/a. Check this out for more information about creating your own custom controls. In terms of finding custom controls already created, do a Google search. You should be able to find quite a few websites that have custom controls for free. It's just a matter of finding the one that fits your needs.
Re: counter read buffer error 10800
Hello, This is an interesting problem. The gate frequency is affecting the number read? Let=92s see if we can figure this out. If you could let me know the answers to the following questions, I bet we can get this solved. 1.)=09What version of NI-DAQ and LabVIEW are you using? 2.)=09Are you setting the Internal Buffer Size using the Counter Buffer (NI-TIO).vi? If so, what are you setting it to? 3.)=09Does the system work if you explicitly set the counts to read? 4.)=09As a general rule of thumb I would set the counts to read to be half of the buffer size. And the buffer size should be big enough to hold AT LEAST two tenths of a seconds worth of data. Does using these rules help? Try these suggestions out and let me know. Also, have you tried using an example program? Does it work? If not, where does it fail? Best regards, Justin T. National Instruments
If i use a sub-vi 3 times simultaneously in my main program....
If i use a sub-vi 3 times simultaneously in my main program. Do i need to create that many of those sub-vi's and the VI's inside the that sub-VI. In my main VI, I am calling a sub vi to do math on the data. I am doing this process simulataneously on the data collected from three channels. I created three sub vi's with same functionality but with different names so that they can be called separetly at the same time. My question is do I also need to create that many copies of the sub-vi's which I am calling inside the Sub-VI used to do math on the data collected from channels?
Re: Passing data from subvi's several levles down to top level vi
But if you do that you still have to explicitly call that sub vi I and you only update when you make the call. You don't update in real time.
Re: Passing data from subvi's several levles down to top level vi
Actually you you could do it that way I see what you mean.
Re: Passing data from subvi's several levles down to top level vi
Same thing, you have to explicity ask your FGV for an updated value. Still not real time.
I run into the error BFFF0015 or -1073807339 very often
I am attempting to write a driver for the Polhemus Fastrak for LabVIEW 7.0, but I am not sure what I am doing, so I'm not sure what the error means. Thanks!
Re: Help needed to build a VI for XPS
Thank you so much for your reply. Unfortunately I cannot open your attachment since I am using Labview 6.0. But I really appreciate your ideas. Thanks again!
Re: If i use a sub-vi 3 times simultaneously in my main program....
Simple answer is yes, you would need copies of the subvis also. LabVIEW can only have one copy of a certain named VI in memory at a time. Unless... You make the VI Reentrant. Setting a VI to reentrant causes LabVIEW to open each instance of the VI in it's own data space, so it acts the same as having differently named VI that are the same. You set this by going into the VI properties, select the Execution catagory and checking the Reentrant Execution checkbox. You wold also need to do this on any subvis you want to run as separate copies. The propertiy is not inherited.
Re: I run into the error BFFF0015 or -1073807339 very often
When you right click on an error out indicator, the first line of the dialog should be Explain Error. In your case, the error means VISA: (Hex 0xBFFF0015) Timeout expired before operation completed. This can often happen during a VISA Read. If there are no bytes to be read or you ask for more bytes to read than are available, then the VISA Read will eventually timeout. The VISA timeout is settable with a property node so you may have to increase it. Its more likely that you have an incorrect byte count or there are no bytes available for a read. Is this a serial or GPIB instrument? Have you verified the commands you're sending in MAX or anything else?
Re: Home automation, lonworks, eib, backnet, dali, etc
pIf you look at the last paragraph of the following webpage, you will see how National Instruments used the LabVIEW DataLogging and Supervisory Control (DSC) module for their headquarter's building automation. http://www.ni.com/opc/opc_resources.htm Echelon Lonworks was used to communicate with Siebe controllers via an OPC Server. I believe the OPC Server for LonWorks was from GesyTec: http://www.gesytec.de/englisch/products/easylon/el_opc-server.htm The LabVIEW-DSC module comes with built-in OPC support, tag management, alarms, security, and is geared towards applications with a high channel count. You may want to evaluate if this is a good fit for your application: http://www.ni.com/labviewdsc Regards, iKhalid/ip
Re: 2d cross-correlation (for image correlation): some questions
Don, Thank you for posting your question on the forum. I have spent some time looking at your code to see if something in LabVIEW or from your coding jumped out at me as causing the problem. Everything looks very clean, and, having not looked at my statistics or correlation functions in a while, I did not see anything obviously wrong. One thing I did notice is that if you select a different subset, such as 0 to 100, then the normalized correlation does come in at less than 1. Because of this, it leads me to believe that there may just be something slightly wrong with the code and the steps you are doing. Again, from a programming standpoint it looks just fine, and maybe someone else out here who deals with statistics and correlation more often may be able to shed some light on the math side of your application. Regards, Michael Applications Engineer National Instruments
How do I fit a curve with two independant variables
I have looked at the General Polynomial Fit.Vi and it seems to be made for single variable functions (y=Fx). My project has empirical data from y=Fx,z. I am sure LabVIEW does this but I am not sure how. Can someone point me in the right direction please?
Re: Passing data from subvi's several levles down to top level vi
Pass REFERENCES to the front panel controls thru sub1 -- sub2 -- sub3 In sub3, use an unattached property node - pass it the reference to a specific control, and set its VALUE property to the new value. Unattached property nodes are on the VI SERVER palette.
Re: Creating an exe with 6.1 and VISA
Hi Jim, NI-SPY should be installed when you install NI-488.2 on the run-time machine. You can find it at Start Programs National Instruments. Good luck! Regards, Steven B. Applications Engineering National Instruments
Re: Creating an exe with 6.1 and VISA
I'm not using NI488.2. I don't believe it is installed on the run-time machine. I am using these VISA calls with a serial port. Is there another way to get NI-Spy? Thanks.
Re: string format problem using read from spreadsheet file.vi
It looks like you have just about everything correct. The last answer was a good point, pointing out your format string syntax. If you are not familiar with how to format strings, you should take a look at this topic in under LabVIEW Help VI, Function, and How-To Help. I was able to get your application to work by changing the digits of precision on the front panel array. Try increasing that number and you should have your expected results.
Re: Help needed to build a VI for XPS
Does the XPS have a serial port or some other type of communications port? Who is the vendor and what is the model number of the instrument? You may be able to use NI-VISA to connect to and control this instrument. Perhaps I can be of more assistance if you can provide more details about the instrument. Jason Hobbs Instrument Drivers
read 2 simultaneous channels, with a CTR Out on pxi-6025E
Im trying to read two channels on my pxi-6025E simultaneously as well as put out a pulse train. Both sampling at about the cards max rate, I need to put out a pulse train while they are reading, for about a second. How would I go about doing this? -Mark
Re: Custom Run-Time Toolbar in Labview
I think the point has been missed, I mean Toolbar, I am already using a custom run-time menu, I want to suppliment that with a custom run time Toolbar in the same mechanism as the Labview toolbar (run, run continuously, stop, pause, etc) but without any of the Labview toolbar functions (which are currently Off) Hope this clarifies the question.
error using coupling property for analog input in LabVIEW DAQ
I am trying to use the coupling property of LabVIEW 7.1 to apply AC coupling to an input signal from a function generator. I am using the DAQ max icons to create the channel as well as start, read, stop, etc. in my labVIEW program and am using the DAQCard-6062E. card for data aquisition. i am trying to use a property node to apply the AC coupling and am getting an error message that says that 'the requested value is not a supported value for this property'. can you provide any guidence?
Re: computer restart caused by MAX
Hello, Did you uninstall MAX 3.0.1 and all of its sub components before upgrading? The reason that I ask is that NI-DAQ does not uninstall previous versions before installation. So if you install a new version over top of an old version, then you will see unexpected behavior. Whether or not this is the case, I think a full uninstallation and reinstallation of NI software would be the fastest solution. While this may take some time, it is better then trying to troubleshoot the issue piece by piece. Here are the steps that should be followed. Good luck! Justin T. National Instruments 1.=09Turn off the computer and physically remove or unplug all NI hardware that you have installed on your system. This includes anything that is PCI-, ISA-, USB-, 1394-, or ethernet-based. 2.=09Turn the computer on and go through Add/Remove Programs (START =BB SETTINGS =BB CONTROL PANEL =BB Add/Remove Programs) and remove everything NI-related. Generally, if you can remember, it is best to uninstall things in the reverse order in which they were installed. For example, if you installed LabVIEW, then NI-DAQ, and then the Internet Developers Toolkit for LabVIEW, you should uninstall the Internet Developers Toolkit first, then NI-DAQ, and then LabVIEW last. 3.=09After everything has been removed (do not be concerned at this point if an item still shows up in the Add/Remove Programs list after you have removed it), close all programs and restart your computer. 4.=09Go back into Add/Remove Programs. If anything that you removed in step 2 is still listed, write down the entry in the list exactly as it appears. These will be removed by manually editing the registry as outlined below. 5.=09Go to START button of your operating system, choose RUN and type regedit. This will open the Registry Editor window. Go to the Registry Menu and choose Export Registry File. Select All for the export range, and select a file name. This creates a backup of the Registry in case a mistake is made when deleting the keys. 6.=09Remove the following registry components from the Windows Registry: =09HKEY_CURRENT_USER\Software\National Instruments -- Delete =09the entire tree! =09HKEY_LOCAL_MACHINE\Software\National Instruments -- Delete =09the entire tree! =09HKEY_LOCAL_MACHINE\System\CurrentControlSet\Enum\PCI\ or \ISA =09and delete registry entries containing any keys with 1093 in them. =09Do not worry if any of these trees are not listed. If you have =09Administrative rights, and you still cannot delete these keys, that is =09also OK. Continue with the remainder of the process . 7.=09Close regedit. 8.=09Make sure that you do not have any of your own VIs or other files saved in the C:\VXIpnp, C:\Program Files\National Instruments, or C:\WINDOWS\nidaq folders. If you do, copy them to a different location. If you are concerned about keeping old virtual channels and your SCXI setup intact, then backup the C:\WINDOWS\niconfig.daq file, too. Delete all folders and files mentioned above!!! =09Note: If you have Windows NT/2000, replace C:\Windows with =09C:\WINNT in the paths listed above. 9.=09To be thorough, you can use Microsoft=92s Clean Up Utility. Pasted below is a link to this utility and directions for use. http://support.microsoft.com/default.aspx?scid=3DKB;en-us;q= 240116 10.=09Reboot your computer. 11.=09You should be ready to install your software. For the cleanest possible install, first install all of your application development software, such as LabVIEW, Measurement Studio, TestStand, etc. Reboot your PC when requested after each install. Now install your driver software and follow the associated user manuals. 12.=09Finally, shut down and re-install your hardware. When you boot back up, it should be detected in MAX.
Re: Custom Run-Time Toolbar in Labview
You cannot modify the LabVIEW toolbar except to turn it off. The only ways I know of to create your own is to use Booleans with custom icons and a decoration as a background or use an ActiveX control (i.e Microsoft Toolbar). If you use either, snug it up against the LabVIEW toolbar and have the LV toolbar turned off when running, the custom toolbar will appear in place of the LV one. You would also have to turn scrolling off because otherwise the custom toolbar would scoll on the front panel along with other front panel objects.
Re: UML tools best suited for Labview GOOP
Hi Edward, You'll want to consider using ObjectVIEW, a product by Vogel Automatisierungstechnik GmbH. The following tutorial provides some more information: a href=http://zone.ni.com/devzone/conceptd.nsf/webmain/A401A47C4DCB81D186256BF3005DD3E2?opendocument#4;G++ with ObjectVIEW: A New Concept of Advanced Object-Oriented LabVIEW Programming/a Vogel Automatisierungstechnik GmbH's website also allows you download, although the page is in German. a href=http://www.vat.de/;http://www.vat.de//a Hope this helps! Kileen C. Applications Engineer National Instruments
Re: how can I use a pc-tio-10 card to count encoder pulses...
Hello, I know you can do this in LabVIEW, there is a shipping example of how to do so. (=93Count Events-Easy (9513).vi=94) What development environment are you using? What version on NI-DAQ are you using? Justin T. National Instruments
Case Statements
I'm working on a program and have a problem with a case statement. I have a tunnel spitting data out of case 1, but the program refuses to compile because I don't have any data exiting the tunnel for case 0. But the thing is, I'm building an array, and don't want anything from case 0 added to the array. How do I fix this?
I need to read an unsolicited serial variable string.
Hello, I am new to LabVIEW and I am working on my first app. I have a serial device that I am trying to read from. This device periodically broadcasts a string containing 17 numeric values. Each value is delimitated and of a variable length. I need to monitor the serial port and when the data comes in I need to parse off the different variables and make them available to the rest of the program. Any suggestions on where to start and how I might do this would be appreciated. Thank you in advance.
application builder is missing in labview under tools
I have a PXI-8170 CPU along with an 8210 (SCSI ethernet), 3 - 7144 motion cards, 2 - 1422 vision cards, 1 6031E DAQ card, 1 - 8421 RS-485 4 port card, 1 - 8422 RS-232 4 port card in an 18 slot PXI-1006 chassis. I installed Windows XP and the updated driver for the graphics adapter and have that all working (Ethernet is not working and I have not installed the 485 and 232 drivers yet). However, after installing Labview 7.0 full development version (complete install), I do not have the build application or shared library showing up under Tools. I have checked and the applibs folder is not under the Labview 7.0 folder and also the software is not listed under NI MAX. I have used the same CD on my Laptop running Windows 2000 and had no problems. Is there a problem with XP or using Labview 7.0 on a PXI 8170 CPU? I also called about getting a replacement ethernet PXI card that will work under XP, but have not heard anything back?
Re: Case Statements
Joe, Actually use default if unwired has nothing to do with any default case and does not require the presence of a default case. It simply assigns the default value for the given data type to the output tunnel in cases where it is not wired. (examples: a DBL gets 0, a boolean gets false, a string gets empty string, ...). Kura, Are you are building an array in a loop coming from a shift register? In this case you would wire the existing array across so nothing is added unless the other case is selected. If you leave it unwired and set to use default if unwired, your entire array would be replaced by an empty array. If I did not understand your problem correctly, please clarify and maybe show a small example.
Re: Case Statements
Make case 1 the default case then right click on the tunnel and select use default if unwired. Hope this helps Joe
Re: Help needed to build a VI for XPS
Hi, The device that we are using is NI-DAQ (PCI-6035E). Thanks a lot!!
Re: LV7 How to click on an xy chart and identify the data point selected
Yes, I agree it is not very pratical. I would prefer if the true x,y coordinates could be obtained directly in the event structure. In addition to the Coords terminal, we also need a terminal that provides the coordinates directly in the true plot units. That would definitely be very useful. I'm not sure when the capabilities will be added, but be sure to look at the invoke node's methods and at external VIs that do coordinate transforms. Because there are possibly many scales, it would take a large number of events to handle the various combinations, so the more likely way for this to wake is to have the pixel coordinate returned in the terminal along with the graph reference. You can then pass this info into a function along with the desired scales that you want it mapped to. Like I said, I'm not sure when this will appear, and I suspect there may be some VIs on devzone or other sites to do this, and in the future more of this may be built into graph methods. Greg McKaskle
