Why cant I acced to all parameters of my simulink model with SIT?
Hi, I am trying to change some parameters of my Simulink model with Simulation Interface Toolkit. The problem is that I cant acced to all of them. For example, I want to change a cut-off frequency. When I enter the SIT Connection manager, a path is given so that I can change that parameter. But when I enter that path to my modelname_driverbase.vi manually, no connection is made with the mapping of the SIT Map Model Parameter. How can I solve my problem? I've counted all the parameters that appear in the SIT Connection manager. There are 21. But in the mapping, there are only 7. How is it possible? Thanx for answering me if you have an idea.
Set and remove RT password on MacOS X
Dear LVers, This is probably an easy one but password discussion on the list made me wonder how to change my passwords for RT targets from LabVIEW 7.0 under MacOS X. So far I have worked without passwords but I realize I should. At least there is no danger in forgetting it this way tough. However, I don't find a way to set it with the ''Remote System Explorer''. Any pointers Regards and happy wireworking yours Urs Urs Lauterburg Physics demonstrator LabVIEW wireworker Physics Institute University of Bern Switzerland
ADLink DAQ2204 under LabVIEW
Does anybody have experience on data acquisition using ADLink DAQ2204 card under LabVIEW 7.0 environment. It would be very grateful if you can direct me to some example programs.Thanks a lot!
Access to Application.ini
When i have built my application in Application Builder and run the Application.exe it creates a Application.ini. Is it possible to access this file from any vi and read configurations from it used internally by my vi's in the Application?
Application Builder and Fieldpoint
Hi I am using Application builder to create the installation setup file. I am using Fieldpoint as data acquisition Hardware. I have saved on .iak file for field point configuration. In advanced installer setting i saw the hardware configuration. in that i am able to see NI-DAQmx only. I am not able to see the field point. How i can attach the Field point driver with the installer files.
3d data interpolation
I have a set of 3d raw data. Is there a VI that will simply interpolate a z value based on the raw data if both the x and y are inputted. Currently I am fitting a 3rd order polynomial to the data and using this to solve my problem. The main problem with this is that I don't know how well the polynomial fits my data. If it outputted an r^2 value than i would be happy.
Missing subVI
I have an old VI from years ago, written in LabVIEW 4, which I am trying to resurrect. However, on loading it looks for a subVI called Acquire N scans - ATrig.vi. It's not one I wrote myself so it must have come from somewhere. Does anyone have a copy they could send me or point me in the direction of at least? Thanks in advance, Ian G Williams Warwick Technology Limited Warwick UK http://www.warwicktech.co.uk --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.700 / Virus Database: 457 - Release Date: 06/06/04
Re: Application Error
Lai, Ann [EMAIL PROTECTED] wrote: I get this error when I tried to save my program: The instruction at '0x0081aa02' reference memory at 0x could not be 'read'. Click on OK to terminate the program. Click on CANCEL to debug the program. There is not very much we can do with this message in itself. It is however quite likely that you use some VIs with external code (DLL calls, CINs) where this code does not behave as it should. It is at least the way I usually create such errors :-) What sort of program is this? What VI functionality do you use inside that program. Are there any third party drivers in there calling into external code? Can you create a smaller application where this problem can be reproduced? While all the other answers still might be only good for more or less intelligent guesses, the last one would be an ideal situation to exactly help you get this problem squashed. Rolf Kalbermatter CIT Engineering Nederland BVtel: +31 (070) 415 9190 Treubstraat 7H fax: +31 (070) 415 9191 2288 EG Rijswijkhttp://www.citengineering.com Netherlands mailto:[EMAIL PROTECTED]
Re: Can I use a list of adress the with open file function?
Thanks Khalid, I finally managed to make a loop using regisers. (kind of what you did). Thanks again and good luck! Alexis
app builder problems
I know this is simple, and I am just over looking something. However I can't seem to get to the bottom of this. Every now and then an application I build will create an installer that doesn't work properly. Instead of installing into the Program Files directory, it will great a new directory called ProgramsDirectory or something like that, and install itself in there instead of the standard folder. It does something similar with the Programs Menu. It seems like I figured out what I was doing wrong once before - but I can't seem to recall what it was. Any ideas? Thanks! John Howard
problem with 2 COM ports working parallel
Hi, I have an application with aquire data from two different data logger via COM ports. COM 1 and COM 2 are opened at the same time and the serial write and serial read functions are in two parallel while loops. It works fine for a while. But after some time COM 1 did not send data any more. If I stop my application and send an other request via hyper terminal the COM port sends the old request from the last serial write of labview. It seems that labview sends the data to the COM port, they are stored in the send buffer but will not be send by the hardware. I work with labview 5.1.1 and reproduced the problem with Win98/2k/XP. Any suggestions? Thanks, Niko
LabView for Linux
Hi I am using LabView 7 Express with Windows XP. I am considering porting my VIs to Linux (RedHat 7.3). I would be interested in knowing others' opinions regarding the reliability of LabView for Linux, and portability of the VIs. Can I expect the Linux version to yield similar performances? Thanks for sharing your expertise, Philippe
Re: which version of LabVIEW needed?
The base version is just as the name implies. You would be better off if you chose the full developemet edition of labview 7.1(current version) This will give you all the functionality of the base version plus a lot more features. Some you may not need NOW but will become valuable in the future as you use labview more. I think the full version will satify your needs. Here is a link you can use to make a better choice. http://sine.ni.com/apps/we/nioc.vp?cid=1382lang=US Hope this helps Joe
Re: running under fedora 2 kernel 2.6
Hello, LabVIEW 7.0 does not work for Linux kernel 2.6. Linux kernel 2.6 is now supported, using LabVIEW 7.1 for Linux. You will have to upgrade to LabVIEW 7.1. I hope that this sorts out your queries. Kind Regards Louis Price Applications Engineer NIUK
Re: How to multiply the measured signal with exp(-t/T) and integrate it?
To Chunrok: You can send me a personal mail at [EMAIL PROTECTED] with your problem. If you want to send me a vi please save as compatible to Labview 6.
OPC et Drive Server OPC
Sous Labview 7.0 je communique avec un positionneur (variateur..) Lenze 9300, gr=E2ce au DriveServer OPC fourni par Lenze... j'ai cr=E9=E9 un sous-vi dans lequel j'ai plac=E9 des indicateurs et commandes avec un lien gr=E2ce au dataSocket avec les variables OPC ... j'ai 2 probl=E8mes... ce sous-vi est appel=E9 dans le vi principal avec en entr=E9e des commandes, et en sortie des indicateurs... toutes les 200 ms ... 1 : Au d=E9marrage, si le variateur n'est pas connect=E9 ( ou est arr=EAt=E9..) labview ce votre ( ? =E0 priori en essayant de cr=E9er les= liens OPC .. ) 2 : Le rafra=EEchissement des variables OPC semble lent ... ( c pe =EAtre plus un probl=E8me du driver lenze .. qui r=E9cup=E8re peu-=EAtre beaucoup trop d'infos...) merci pour d'avance pour vos conseils
Re: text ring display problems
Thanks, that does work. I will continue to see if I can come up with a more elegant approach, but for now this will work.
Re: how can i insert zero
Thank you very much,for your help,the sample it very useful for me. Thank you. Diallo
Re: Omega CYC 321-01 Temperature Controller
John Schafer [EMAIL PROTECTED] wrote: Does anyone have a LabVIEW driver for this Instrument from Omega and more importantly know the exact wiring config of the Serial Interface Port (RJ-11) on the instrument. I am somewhat confused because they say that its an RS232 config but they show a GND for the RX and a GND for the TX which typically is RS485? Thanks for any help. RS-485 would be more like a TX+/TX- and RX+/RX-. There is no real signal ground only a common line more like an earth. They maybe have separate ground lines for both transmission lines, but they are probably still ground referenced meaning the two GND have always the same electrical potential. I wouldn't let myself impress by such strange definitions and just simply try it out, possibly with a breakout box with LEDs to check that the data transmission is really ok. Rolf Kalbermatter CIT Engineering Nederland BVtel: +31 (070) 415 9190 Treubstraat 7H fax: +31 (070) 415 9191 2288 EG Rijswijkhttp://www.citengineering.com Netherlands mailto:[EMAIL PROTECTED]
New solution for OS X
Just to publicize a little known solution that lets one use the best development environment with NI hardware. One can use a cheap PC as the host for all the hardware running the PharLap RT/OS as the target machine. This gets around the extreme cost of a PXI crate and embedded hardware. http://zone.ni.com/devzone/conceptd.nsf/webmain/2B20D544723C8F2D86256E8C0071C201 With LabVIEW 7.1 the host PC can be an Apple MacIntosh running OS X! The realtime target can be any cheap PC, though NI lists some systems as recommended it seems that the RT/OS will boot and run on most hardware. Mac OS X and LV 7.1 now support cross compiling for the RT/OS. This can be simply linked to the host thru ethernet. For a good solution one should probably throw a second cheap ethernet interface in the host to keep network problems isolated from data transfer and control. This will allow development in a clean, reliable and efficient environment with compatibility to all of NIs hardware. The only real drawback is supporting the hardware of a cheap wintel box and the time labor associated with that. However the Pharlap OS has a reputation of being fairly clean and robust to avoid the normal problems associated with more common desktop OSs. I hope to get this info added soon to the OSX - Labview info page http://sthmac.magnet.fsu.edu/labview/LVonMacOSX.html -Scott
LabView graph data in Excel
Hi, Does anyone know how to graph data in excel using series collection? For some reason in my program, I use a loop to put number into the index of the series property, but I only get one graph in the end. When the index of the series is 2, the program gives an error and it won't graph series 2. Thanks. Ann P.S. If you want to see the code, let me know and I will send it to you.
Re: Writing data from a multicolum list box to .lvm file
LVM files can only be written from the dynamic data type, which internally is an array of waveforms. Hence, any kind of numeric data that can be converted into a double precision float can be wired. Strings (or e.g. time stamps) cannot be used immediately - they need to be converted. Wire the string array to a fract/exp string to number function which will take care of the whole array, given that all entries can be converted to numbers. Configure the Express VI to not write time columns.
Re: Problem about SGL with temperature unit
Thanks a lot, Jean-Pierre. From what you posted above, I am quite sure that it is a defect of the conversion routine for the temperature unit. The reference temperature for degC (273.15) and/or degF is stored internally as a DBL. 273.15(SGL) - 273.15(DBL) = -6.10352E-6; 274.15(SGL) - 273.15(DBL) = 0.94; . To solve this problem, there should be two reference temperatures, 273.15(DBL) and 273.15(SGL), for DBL and SGL with temperature unit respectively.
Re: LabView does not see the same COM port numbers as windows XP
It should.. However, if I recall in version 6.1, number 0 referenced COM1 and 1 referenced COM2. It was a bit confusing, but was solved in LV7. When you configure the port, do you wire the VISA reference or a number (0, 1, etc) as the port reference? If it is a number, then make sure 0 = COM1. Other than that, LV and Win-XP should have identical COM port designation. JLV
Re: Error code -2146827284 when trying to programmatically...
Hi, This is what I used and it seems to work. But I have an extra series in there for some reason. Good luck
Re: How can I change my Array control Index to a scrollbar
This works fine, but if I want to use a vertical scrollbar, the Slider controls don't look right. They have the zero value with the indicator at the bottom. A normal scrollbar should have the indicator at the top for zero and then increasing as it goes Down. How do I get this to work? Can you invert the scale or orientation of a vertical slider? -Kirk
Re: application error 0x0081aa02
Hi analog, A couple of suggestions: 1. What version of LabVIEW are you using? Are you loading code written in a previous version of LabVIEW into a newer version of LabVIEW and/or using global variables? Refer to a href=http://digital.ni.com/public.nsf/websearch/4C8994FAEEDAB09A86256C7D0068A3C6?OpenDocument;KB 2RPC1EHW. When I Update My Code to LabVIEW 6.1 I Get the memory could not be read Error/a. 2. You might not be closing references somewhere in your application. Check where you are using reference numbers: file I/O, DAQ GAPI, control and VI references, etc. Also if you are calling DLLs anywhere or ActiveX controls, make sure you you are handling them correctly and not leaving things open. 3. If you're using an older version of LabVIEW, try upgrading to the latest version 7.1 and see if the problem still occurs. If you do not have the full installation of version 7.1 available, you can download an evaluation copy from our website. Give that a try and see if the problem has been resolved in LabVIEW 7.1. Thanks and good luck! Kileen C. Applications Engineer National Instruments
Re: acquire control
There are many possible solutions to this issue. Some may be better suited for your application depending on what hardware you currently have. One solution may be to use LabVIEW Real-time with a Fieldpoint System. You would use LabVIEW to write your control algorithm and Fieldpoint to interface to your hydraulic system. There are some examples for using PID control. And here is a link to an interactive presentation using PID with Fieldpoint. http://zone.ni.com/devzone/conceptd.nsf/webmain/7FC16BD6B721E80B86256CD30074ABD6?opendocument Again this is just one possible solution to you problem. You may want to contact your area sales representative to discuss more about your system. They are very capable of putting together the correct software/hardware options for your application. Regards, Joseph D. National Instruments
controlling an old windows program from LabVIEW or CVI
I want to control a windows program, by emulating button clicks and text entries to the other program, from LavVIEW or LabWindows/CVI. How can this be done?
Re: Can I transfer a license or find out the current status of the product registration.
Check with NI Customer service. follow this link: http://sine.ni.com/apps/we/nicc.call_me?p_action=countryp_lang_id=US
Re: problem with 2 COM ports working parallel
Can you attach a copy of the portion where the COM port communication takes place? Do you verify if there is (more) data at the port waiting to be read? or even a delay between sending the command and the expected response? By seeing how you implemented the communication, we can better provide some ideas or solutions. Regards, JLV
Re: Not Uninstalling Anymore on 6.1 App builder
Hi, If you do want to uninstall the old executable, then you want to make sure that you are NOT generating a new product code every time you ubild a new executable. When you are in the Application Builder Installer Settings Properties, make sure that you are keeing the same product code (do not press the product code Generate button). The old executable should now uninstall first before installing the new executable. For more information, refer to a href=http://digital.ni.com/public.nsf/websearch/626109299CA6A5AD86256BBF00621C29?OpenDocument;KB 2LJBQPO9. New Installer Uninstalling Old LabVIEW Built Executable Before Installing Newer Version/a. Kileen C. Applications Engineer National Instruments
Re: online export to the hard disk
You can place the write to file part of the code within the loop where you obtain the data. If you add the newly acquired data, simply select append to file. So here's an idea of the steps: 1. create the file where you want to store the data. 2. inside the loop where the acquisition takes place, write to the file. Use append to file option. 3. Outside the acquisition loop, close the file. Make sure you can clse the file even if an error was detected. Run it and see if your data was kept. JLV
Re: List of daqmx error code numbers
Oops... I verified that numerous translated error files are missing for German. Someone from the DAQ team will repond to this thread shortly. In the meantime, you can manually copy the missing files from the English directory to the German directory and you will at least get the English descriptions. Thanks for your help with identifying this problem and sorry for the inconvenience.
Re: Replace array row in a loop
Mihai Costache [EMAIL PROTECTED] wrote: long explanation snipped It's all very nice, except it takes 20 minutes (Pentium III 800MHz Win2K LV7.1)! I then replace the FOR loop with a formula node and inside that a workmate of mine writes the corresponding C code to do exactly the same job. Now it takes 10 seconds! Is LabVIEW really worthwhile, or do we all need to go back to basics and learn C? Can you provide a VI somewhere where you show what you are doing? Your explanation is a little difficult to imagine (not your fault as such things are hard to describe at any rate) but I'm sure there are possibilities to actually do that perfectly fast in LabVIEW only, possibly beating even the formula node. The problem is not that LabVIEW is so bad, but rather that it takes so much work from you in such situations that you don't worry about optimal algorithmes in the first place and when you do, it is sometimes hard to see the optimal solution. Rolf Kalbermatter CIT Engineering Nederland BVtel: +31 (070) 415 9190 Treubstraat 7H fax: +31 (070) 415 9191 2288 EG Rijswijkhttp://www.citengineering.com Netherlands mailto:[EMAIL PROTECTED]
Re: Can I transfer a license or find out the current status of the product registration.
Hello, It would be best for you to contact your internal sales rep at (888) 280-7645 to get this information. Please have the serial numbers handy. Also, you can check if a product is alredy registered on ni.com MyNI My Registered Products Zvezdana S. National Instruments
Re: Differences beetwen versions
George, I would not be able to tell you about different versions of MATLAB, but to find out what changed between certain versions of LabVIEW, it would be best to look at LabVIEW release notes for the specific version. The latest one can be found here: a href=http://digital.ni.com/manuals.nsf/websearch/0FB36A66EDEA837A86256E40007051FF?OpenDocumentnode=132090_US;LabVIEW Release Notes/a LabVIEW 7.1 supports MATLAB versions 6.5 and earlier. LabVIEW 6.x and earlier does not interface properly with MATLAB 6.1 or MATLAB 6.5. Zvezdana S. National Instruments
Re: how to save my 3 channel data like this
I couldn't open this vi because my labview is 6.0 which you sent is 6.1.Would you please send your diagram as a jpeg file. Thanks for your help
RE: Missing subVI
As has been pointed out to me, it is one of the examples supplied. It's in a LabVIEW library which is why my simple file search didn't find it. All sorted out now, thanks to all who replied. Ian G Williams Warwick Technology Limited Warwick UK http://www.warwicktech.co.uk -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Ian G Williams Sent: 11 June 2004 13:43 To: Info-LabVIEW list Subject: Missing subVI I have an old VI from years ago, written in LabVIEW 4, which I am trying to resurrect. However, on loading it looks for a subVI called Acquire N scans - ATrig.vi. It's not one I wrote myself so it must have come from somewhere. Does anyone have a copy they could send me or point me in the direction of at least? Thanks in advance, Ian G Williams Warwick Technology Limited Warwick UK http://www.warwicktech.co.uk --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.700 / Virus Database: 457 - Release Date: 06/06/04 --- Incoming mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.700 / Virus Database: 457 - Release Date: 06/06/04 --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.700 / Virus Database: 457 - Release Date: 06/06/04
RE: New solution for OS X
Norman, Isn't this the way RT was first implemented on Windoze hosts. Just a RT PCI DAQ board and nothing else. These boards kept running even without the booted OS on the host machine. Obviously the line power was essential though. I think as time passes NI's concept of actually downloading the code and have it run on all kinds of different RT targets is the way things will develop in the future. Within this framework a PXI chassis with a PharLap RT controller which is accessible through a network connection by any host is a good form factor. It might be an expensive solution at first sight but the possibility to target a stand alone array of a suitable mixture of PXI DAQ boards in a PXI chassis equipped with a controller can be a very good, robust and reliable solution for many industrial and such tasks. After all the PXI is a well known form factor to NI and this in contrast to the numerous constructs of office machines which dominate the common PC market. The idea to develop and debug the application on ones favorite PC platform (Win, Mac, Linux, Sun) and deploy it on robust devices capable to act in a deterministic RT-way is a good concept and NI has made it real already. No need for dreaming really, but of course like all dreams they have their prize. As I am getting more and more acquainted with the RT topology it makes more and more sense to me. To be able to disconnect from a given RT-target while the VIs keep running deterministically right at the locations where the measurements are taken to later hook again into the self made instrument through the same or other links is a fine way to do DAQ. 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. Thanks Jeff for putting the thoughts and the creativity ahead of us. LabVIEW everywhere, even way down on small intelligent sensors is a very intriguing and far sighted roadmap. Regards and happy RT-wireworking Urs Urs Lauterburg Physics demonstrator Physics Institute University of Bern Switzerland What would be a true milestone for the computer based RT world would be a RT PCI card. A card that would not be a slave to the system that it is connected to but rather running in parallel, simply using the PCI bus as means to power it and to facilitate comms on a need basis. Then to top it all off, give it a MXI interface to access a PXI chassis. Or maybe it's all just a pipe dream ~,~ The Captain was here -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Scott Hannahs Sent: Friday, June 11, 2004 9:00 AM To: Info LabVIEW Subject: New solution for OS X Just to publicize a little known solution that lets one use the best development environment with NI hardware. One can use a cheap PC as the host for all the hardware running the PharLap RT/OS as the target machine. This gets around the extreme cost of a PXI crate and embedded hardware. http://zone.ni.com/devzone/conceptd.nsf/webmain/2B20D544723C8F2D86256E8C 0071C201 With LabVIEW 7.1 the host PC can be an Apple MacIntosh running OS X! The realtime target can be any cheap PC, though NI lists some systems as recommended it seems that the RT/OS will boot and run on most hardware. Mac OS X and LV 7.1 now support cross compiling for the RT/OS. This can be simply linked to the host thru ethernet. For a good solution one should probably throw a second cheap ethernet interface in the host to keep network problems isolated from data transfer and control. This will allow development in a clean, reliable and efficient environment with compatibility to all of NIs hardware. The only real drawback is supporting the hardware of a cheap wintel box and the time labor associated with that. However the Pharlap OS has a reputation of being fairly clean and robust to avoid the normal problems associated with more common desktop OSs. I hope to get this info added soon to the OSX - Labview info page http://sthmac.magnet.fsu.edu/labview/LVonMacOSX.html -Scott
How do I create an emergency stop custom control in LabVIEW that looks like an actual E-stop button
How can I find (or buy) a variety of custom controls for various applications that look better than the standard NI controls.
Re: [W] FTP using DataSocket or other
I am having the same probem. I was able to access the site a week ago, but have done some spyware removal and am afraid that the fpt things in Windows XP may be messed up. How can I check? The DOS window fpt utility works fine. My FPT utility (WS_FPTpro) that runs in windows works fine. And what do yuo mean by a relative address? I'm trying to talk to a Siemens S7-200 with their IT module. It's address is fpt://name:[EMAIL PROTECTED]/flash:/processdata/processdata_01.txt(text).
Help needed to build a VI for XPS
Dear All, I am building a VI for acquiring data from X-ray Photoemission Spectroscopy instrument. I want a funcation that the data can display on the graph during each scan process and that the data has been added by the previous scanned y-value at the same x-axis. Do you know how to realize this? Thanks!
Re: ActiveX controls with TLA logic analyzer
Hi Drew, It could be that you need to first register the type libraries and ActiveX controls/servers for your logic analyzer. There is a useful KnowledgeBase discussing this procedure: a href=http://digital.ni.com/public.nsf/websearch/4F811A9B23F1D46E862566F700615B7A?OpenDocument;KB 1HBAMMSR. How Do I Manually Register Type Libraries, ActiveX Controls, and ActiveX Servers?/a Kileen C. Applications Engineer National Instruments
Re: excel open worksheet
Hello analog, It looks like you are passing out of your vi the reference to the unnamed worksheet rather than taking the worksheet reference out of the right side of the property node. It=92s possible than correcting this will solve your problem. If none of these suggestions help, or if I=92m not correctly understanding your issue, please post a wrapper for this vi which exhibits your described behavior, and I=92ll be happy to look further into it. Have a nice day! Robert M Applications Engineer National Instruments
Re: which version of LabVIEW needed?
Hi Joe, thank you for your answer. I think my application don't need adavanced functions like analysis and so on but I'm not sure. My application is a small piece in a big software solution which is written in C++ so the company I developed my application for don't want to pay a lot of money for LabVIEW when it is not necessary. Do you know a way to find out how I can test my application with a base-editon of LabVIEW 7? Best reguards Michael
Re: 3d data interpolation
Do the x,y values form an equally spaced regular grid or are the points randomly placed. Do you need to interpolate in one direction, e.g. along each plane with constant x, or do you need to form a solid surface, potentially calculating Z for any fractional x and y. Do you know anything about the data? Is there a theoretical model that you can fit to it? This would be the most reasonable approach in general. If you simply need to interpolate without any theoretical model, you could do a 2D spline. Since a spline goes through all the data points, chisquare will be zero. Or are you looking for a solution that does some smoothing of your data?
Re: How do I create an emergency stop custom control in LabVIEW that looks like an actual E-stop button
This is very easy to do in labview.The way that you do it is by double clicking the control. This will bring up the customize window and from there you can make it look like you want it to by inserting pictures into the control of the way you want it to look at each state. Look at the shipping examples that come with labview and experiment with this a little bit. It makes for a great GUI feature when you do this. Hope this helps Joe
Re: sync a timed loop with counter out?
thank you very much. It did help :)
Re: ActiveX controls with TLA logic analyzer
I tried registering the type library, but that didn't help. I have tried un-registering it and re-registering it with no success. When I un-register the type library I can't even access the top level. However when I re-register it I can only access the top level. It seems to me that there's a problem converting the variant which is returned from the GetSystem Method to a Automation Refnum which can be used in the Automation Open block for the System Class. Do you have an example of how to do this?
Re: which version of LabVIEW needed?
You may want to call NI about certain questions. Call your Local NI representative and talk to them. You may try downloading the evaluation version of labview 7.1. Sorry I cannot help more.
Re: 3d data interpolation
The x,y values form a relativly linear surface that twists in the z direction. The data is taken from a valve calibration. The pressure is measured for each position of the valve. However there is a 3rd variable in the system. This means that the pressure required is dependent on valve position and the 3rd variable. This third variable causes small changes in the other two. What I am trying to do is calculate my valve position for a known pressure and 3rd variable. The data doesn't need to be smoothed.
Re: Creating an exe with 6.1 and VISA
OK this looks promising. I ran NI-Spy on the development machine. How do I install it on the run-time machine? The tutorial you pointed me to says it is part of VXI, but as far as I know I don't have or use VXI. Additional note: exe application works on development machine. Target machine hardware is good as evidenced by communication checks out with hyperterminal. Thanks. -Jim
Re: run time setting?
brHi Yong, Apparently, it's being hidden at run-time using Property Nodes. Here's how you can find and fix this part of the code: on the front-panel, right-click on your graph and select FindProperty Nodes. This should either take you to the property node on the diagram, or bring up a box -- when there are more than one -- with the list of property nodes. Visit each Property Node and find out if the 'Visible' property is being set to False anywhere. That's the culprit! Adios! iKhalid/ip
Re: string format problem using read from spreadsheet file.vi
If you want to read 9 significant digits, just use the %.9f format string. Your %9.9f format string says to only process the first nine characters in the field so you aren't getting the exponent. You can also change the format and precision of the front array display to something else (i.e. scientific) to display both the large and small numbers. Just right click on a numeric indicator in the array and select Properties and then click the Format and Precision tab.
Advice on constructing a test engine and formatting a...
Advice on constructing a test engine and formatting a spreadsheet test file to perform command line interface testing on a product through telnet or serial interface Advice on constructing a test engine and formatting a spreadsheet test file to perform command line interface testing on a range of products through telnet or serial interface and output pass/fail results.
Re: Right click palette
Hi Mark, It sounds like this might be a more involved issue regarding LabVIEW. At this point, I would suggest a href=http://sine.ni.com/apps/we/nicc.call_me?p_lang_id=US;contacting NI/a via email. If you don't already have a service contract with NI, you can have a temporary 30-day active trial contract that will allow you to communicate with the NI support team. Thanks again! Kileen C. Applications Engineer National Instruments
Re: Checking for running applications on remote machines
Hi Slawek, I would suggest using Remote Front Panels in LabVIEW. Remote front panels allow you to view and control a VI front panel remotely, either from within LabVIEW or from within a web browser, by connecting to the LabVIEW built-in web server. There is a tutorial a href=http://zone.ni.com/devzone/conceptd.nsf/webmain/8BC90A5F744A482886256BA000681713?opendocument;Developer Zone: Remote Panels in LabVIEW -- Distributed Application Development/a that will provide you with more information. Also, there are example programs in LabVIEW that walk you through how to programmatically connect to a remote front panel. Go to bLabVIEW Help Find Examples Networking General RemotePanelMethods-Client/Server.vi/b. Hope this helps and good luck! Kileen C. Applications Engineer National Instruments
Delay a sequence for a specific time.
Hi, If I have two sequences, the first one is executed, and I want the second sequence to wait about 2 seconds before executing next. How can I do this? Thank you, Van
