minitel emulator
does anybody knows a minitel emulator under labview? thank you
how to create a help file for a VI
I want to create a help file describing my VI. How do i do that by clicking a control. How do I store the help file.
excel version and Labview
I am using LV 6.1 and Win2000 and MS Office 2000. I have created a simple form in Excel that I populate with data through Labview. Has anyone ran into problems with versions of Excel? i.e. what version of Excel do I need to create my spreedsheet in so all version of Excel can access it when I call Excel through Labview?
changing color everytime it graphs
2 questions. 1. Hoe to smoothen out the graph. like 3 point or 9 point smoothing. 2. I am taking data and plotting it at the same time but each time it changes color. Is there anyway I can make it not to change the color. thanks in advance.. In anticipation of help -priiyank
I need to open/import a .bin file in to LabView
I would like to open a .bin file in LabView for DSP purposes.
External library Same name of lib for windows and linux
I have a VI library, under Windows. This library contains a bunch of SubVI who call our libAPI.dll We are currently adding support for Linux. And, thus, have the equivalent for our libAPI.dll which is libAPI.so for Linux. Is it possible to use a generic name in the field for Library name or path API (without .dll or .so). So that when we will create of Linux version of this library we wont have to edit all of the Library name or path for each VI. We already tried to use the subVIs under Linux. Labview asked to locate libAPI.dll. If we choose libAPI.dll, then it works fine, but we do not want to have a question asked to the user about locating API.dll under Linux. Regards, Nitrof
Engineering Career Opportunities in Connecticut and Massachusetts
Bloomy Controls is seeking engineers with strong LabVIEW skills and experience for the following career opportunities: o Project Manager -- Milford, MA o Project Engineer -- Milford, MA o Associate Engineer -- Windsor, CT. Outstanding employee benefits include medical, dental, disability, pension plan, and profit sharing. Visit http://www.bloomy.com/careers.htm to view job descriptions, requirements, and application information. Bloomy Controls is an NI Select Integration Partner.
can i use a counter input for a encoder feed back reading i 6014 daq card
i want to read a encoder input{A and B} using a 6014 daq card,i plan
to use the 2 counter inputs given,can i use it and can any one tell
me how.
Memory error
My application crashes for memory error on LVS61D5 module after several hours of running. The application is built using Labview 7.0 and frequently calls one CIN (Visual C++ compiled) that controls one ISA acquisition board. Large amount of RAM is used in the CIN C++ code (up to 2560KB) to temporarily save data. PC runs Windows98SE and 512MB of RAM is installed. Any suggestion? Thanks
Run-time licenses
We are looking to upgrade a Labview 5.1 Professional (with 5 run-time licenses) to 7.0. Our understanding is that all 5 run-times must run the same executable built from the Application Builder. Is this true or can we have different run-time executables? Thanks, Tim Bretz
passing data to subvi
I need to pass data to a subvi which has while loop inside. And the data need to be seen in while loop. How can it implemented? Thx.
incrementing file path?
I have a for loop that is going to write a number of files. I wish to name all the files differently bu have to many file to type in a new name each time. I there a way to say add the loop iteration to the filepath to create a contiuously changing file name? E.G iteration 1, Datafile1 iteration 2, Datafile2..
RS232 questions...
please your advise.. i am using now the trial version..(labview#7) when i run the application few times all indicators preserve last response/status and it is not good for beginning the next RUN... how can i PRESET or CLEAR my controls on front panel to a default value/status?
Error 8 at New File
Well, I have read several posts about this error but they all seem to deal with "opening" a file. I am getting this error when I use the New File VI from the advanced VIs under File I/O. I'm running Win XP but I don't have MS Office so I don't think that Fast Find program could be the problem. I've also tried wiring 0 to the deny terminal and still no fix. Note: I do have the LV7 demo installed on my comp, so if that raises any red flags, please let me know what you're thinking. If anyone can help me out here it would be great. Thanks.
High speed data logger VI
I have two questions regarding the high speed data logging VIs available at the following link http://sine.ni.com/apps/we/niepd_web_display.display_epd4?p_guid=B45EACE3EE4756A4E034080020E74861&p_node=DZ52303&p_submitted=N&p_rank=&p_answer=&p_source=External 1) When we retrieve the data is it in decompressed form and do we get back the original resolution? 2) Is it possible to use the VIs with 4472 card? If not can somebody make it compatible with 4472? Regards, Mondeep
email MS Excel file attachments
I am trying to send an email from within LabVIEW 7 using the SMTP Send Multiple Attachments.vi I need to attach an MS Excel file (.xls) The recipient gets the email with attachment, but the file is corrupted (invalid format) and can not be opened. Is there an example of how to accomplish this?
PID with 2 slider controls
I've never messed with PID's but I'm working on a project that I thought would be simple until someone told me that I needed to calibrate my system to another system using PID's. So here goes with the question. I have a pedistal that moves in the up/down (elevation) and right/left (azimuth) positions. I am to track an object based on elevation and azimuth readings from another pedistal. So before I can track the object I need to sync, or calibrate, my tracking system to the other system. The way this is done is by pointing both systems to the same location (say the top of a mountain). If the master system reads 35 degrees azimuth and 88 degrees elevation and my system reads 34.02 degrees azimuth and 89.20 degrees elevation I need to fine tune my system. I can do this by using 2 slider bars that control the up/down and left/right movement of my system so that I can manually move my system to the correct location. Once my system is pointing in the right location, I'm guessing I store some value. Once the system is calibrated, I should be able to track pretty close to where the master system is telling to be. So thats pretty much all I know I should do. But I don't know how to develop this with PID's. Does anyone have any suggestions, example, etc? Thanks. --cjm
DataSocket & Java Applet
Is it possible to program a java applet to access information from instruments using DataSocket? Is there an API? There is an API announced on this website: http://flagpole.mit.edu/applets/DataSocket/DS-HOWTO.html It says it's a Beta but I cannot acces the link that redirect on NI's Website
question abt "propery node"..
i am using the "propery node" to set the "VISA READ" control its node "termination character enable" does not affect VISA functionality when termination character exist (or default) the "enable" does not affect.. please your advise.. thanks simon
Template in runtime
What happens when a VI template (.vit) is opened in the LabVIEW Runtime? Does it open a file with a new name as it does in the development environment? Allen
Phase displays? Compared to what ref?
I am using Labview 7 and I have a question about some of the new features. I am trying to input 2 channels and graph the output amplitude and phase difference. I have tried using the "new" interfaces for "spectral" and "tone" measurements but I am unable to achieve the desired results. I am trying to see the vis that make up those fancy interfaces to see how they work. Anyone know how to view them? How are the phase difference numbers generated in the tone and spectral measurements? My program is just 2 simple inputs and I would like the signals displayed on a graph displaying amplitude and phase difference. The phase can be a graph or just a simple number indicator. So far no luck with any approach. I have checked the web site for examples and nothing that simple. Thanks for any and all help. Dave
Optimizing serial buffer read speed
In my program I am sequentially grabbing 69 bytes from the serial at 38400 baud rate. However, the rate at which my VI is grabbing the data is too slow. Are there any methods of making it faster, assuming that I cannot use a high speed serial?
waveform chart shifts first point by 50
I am plotting 20 points of data using the Waveform Chart. The data is sent to the chart as waveform; t0 = 180, dt = 5, Y = my data points. I am using the XScale.Range property to set the following: Min = 180, Max = 280, Increment = 10, Minor = 5, Start = 180. When I send the data to the chart it starts the X scale at 130 and the data at 180, the when the properties function is executed it shifts that chart to start at 180 (the correct format) No matter what my start position (i.e. 200 instead of 180) the X scale always starts 50 positions below my t0 and then updates when the property node is run. Why does LV extend the beginning of the X scale like that when you write data to the chart?
Labview Locks Up Opening Chart Properties
Sometimes when I open up a properties dialog box for a waveform chart, the Labview 7 locks up. Other times it takes a long time to update the entry and go on to the next. Especially when editing the plot names. This seems to be always when I have a waveform chart that has multiple wave forms going into it and they are stacked plots. Any idea? It is very frustrating.
Errors 410 and 420 with Agilent 34970A
Hello, all. I'm helping a colleague with an application measuring ten channels each of temperature, frequency, and current using an Agilent 34970A DAQ switch (GPIB) and LabVIEW 7. We keep getting errors 410 and 420 from the switch. When the error occurs, then the switch doesn't report all 30 pieces of data. I'm looking for ways to a) clear the error; and b) prevent the errors. Thanks in advance, -Dan A
why the output strings are error codes?
Hi, I have made some bit twiddling operations.but the output are error codes after running every time.for example,the output strings are error codes when I make bit twiddling to the input binary "00001111".Could anybody tell me the reason why bit twiddling deos not work? yours sncerely
Labview window scrollbar won't enable
A very frustrating problem. Have you ever been editing with a labview window (6.1) when suddenly you notice that the scrollbars on the side and bottom of the window are no longer enabled? It happens very infrequently but when it does the only way I can edit around the window is to drag an object to one extreme or another to make the window move. Except for the scrollbars not functioning everything else seems to be fine, the vi still functions correctly. I would say, in the last year, this is the third time this has happened to me, so it doesn't happen that often. I think it is somehow related to using type defs but I can't be sure. If I try to copy all the code to a new window I get an Insane Object error. If anyone is familiar with this problem I'd sure appreciate some help! Thanks.
error -2147221480 occured at building dll stub
I am trying to create a LabView Dll, however i keep getting this error whan i attempt to build it. I have created Dll's before but all of a sudden it just stopped working. Has anyone else seen this and can shed some light? I'm using LV 7.0
Real time feedback control using E series DAQ
I am doing real time feedback control(PID)that controls (drives) the up/down motion of Z-piezo in atomic force microscope (AFM) using a E series DAQ NI6025E.I collect a single scan of data from the AFM, perfom some analysis on it,update the driving signal based on a measured value and send out the updated signal to the AFM. I am having problems with synchronisation. Which is the best sync. mechanism (trying to use AI START SCAN VI- using PFI7 pin of E series DAQ).
What differences are between VI templates and VI?
I am reading the User Manual( Labview 7) and I don=B4t umderstando what differences are between save one Vi as *.vit or *.vi?I would like to know the differences beteween vi templates and vi!!! Thank you!!
Can't control the HP3325b (error code:Hex:BFFA0010)
Dear all, i am now writing a vi to control the HP335b, when i run a simple driver's vi (like getting started.vi) i found that the "ag3325b Configure Standard Waveform.vi" got a error and the error code is Hex:BFFA0010 ag3325b Configure Standard Waveform.viDriver Status: (Hex 0xBFFA0010) Invalid value for parameter or property. what should i do to recover the error? p.s.i am now using LV6.1 with visa3.0 and IVI Compliance Package 2.1 installed. Thanks all~~
setting a single button to do a task in different loops
I have two separate while loops and I want a single button to perform the same task in both loops. Is there a way to configure this or am I stuck with having 2 buttons?
How can I force the close of a third party ActiveX server.
We have a third party ActiveX executable that refuses to shut itself down once in a while. And when I say once in a while, I mean one out of every 20-30 times it's attempted. All termination commands are being sent and recieved properly, and all refnums are being closed. No errors are ever generated, all operations report successful, but the thing just won't die. Problem is of course, that if we attempt to restart our software after the ActiveX app fails to terminate, it generates server execution errors when trying to open a new instance. We are not expecting a speedy resolution from the third party, but it is becoming a great inconvenience for our customers. I would like to be able to kill the process through the OS as a last resort. Problem is, to do that I need a ProcID. Is there any way to retrieve a ProcID for the ActiveX server through LabVIEW? Alternatives and suggestions are welcome.
Is the output from an auto power spectrum complex valued?
i want to display the fourier output of some ascii data that i saved to a text file. however the input to the FFT block must be complex valued.how am i to know what i see is actually the fourier analysis?please help
I want to make a arrow picture blink when The Load cell is travelling down
I want to improve my app by putting some visual indicators in the form of 2 pictures , an arrow up and down , and would like these to blink according do wich way the numbers are going positive or negative when the data values on the displacment channel are changing ,Cant seem to find any vi to help manipulate the pictures , Blinking would be Ok or even better one disapear and the other appear when the numbers return negatively.??? any help appreciated Kind regards Brett Scott [EMAIL PROTECTED]
Re: labview problem
There are two VIs called "Wait" and "Wait Until Next Multiple" from the "Time & Dialog" pallette which you can use to delay your each send operation. Joe
how can I put data in an array which will be used in SPC plotting
In my program, it will generate data continuously and I would like to store these data time to time in an array. Could you suggest me a method? For example, 1.77,1.67,1.56,1.89,1.99... (these data generated continuously) 1st second: 1.77 1.67,1.56,1.89,1.99( store in array) After 1 second: 1.67,1.56,1.89,1.99,1.33 (remove the first one data in the array and replace it with the following generated data) How can I remove the data in the array and replace it with the other data? Could you give me some examples? Thanks
Hitting Back Space in Remote Panel while entering character in string control
I am using Remote Panel in my application. I use string control where user enters some information through remote panel to the software. While entering the info in the string control in remote panel (using IE 6), If i mistype any thing and hit back space, IE goes to previous page. Instead I would like it to delete the last character i typed in string control. Is there any setting in the IE to disable the back space fucntion? Or Is there way to set the LV RT engine to take the back space in remote panel. please help me solve this problem. Thanks, Senthilnathan A.
Re: email MS Excel file attachments
I believe that there is an Email with Data.vi example that should help you. However, it should be pretty straight forward. As an example: 1. Open SMTP Email Send File.vi 2. Fill out the recipient's email address in recipients 3. Fill in the subject 4. Fill in the message 5. Fill in the path to the Excel file in file path 6. Click the binary? boolean to be True. 7. Fill in your return address. 8. Fill in you mail server's address 9. Make sure the MIME content-type is set to application/octet-stream Run the VI and everything should be fine. I just did exactly that and the xls was sent without a problem. Hope this helps!
Re: Problem building a VI to test a dll.
Hi Guys, I could figure out the way to do this, Thanks a lot. Ajit
Re: PID with 2 slider controls
If I understood you correctly, you are reading the two current positions (1)-up-down and (2) left-right, and you have two set points (one for the up-down and the other for the left-right position, read by the master. And the objective is to make the readout for the positions as close as possible and ideally equal to the set points. Assuming the up-down and left right positions are independent, you can use two PID Loops to address this problem. One for the up-down, and the other to control the left right. Normally, a PID loop takes two inputs: The SetPoint, and the corresponding readout of the system. It calculates an output signal (to the data acquistion system ) that moves the system in a way so that (The Set point =96 Readout ) becomes ideally zero (no error). The other parameters are the tuning parameters. They control the speed and overshoot of the response, and they have to be properly selected. A system that is poorly tuned may oscillate and can cause damage (depending on the setup) There is an example that ships with LabView and it has a basic PID controller that you may want to look at first. A good PID loop should have a mean of setting it in manual mode to make it take any preset voltage (this is what you probably mean by calibration). The basic loop example that ships with LabView does not have that. You have to modify it (assuming you have the basic understanding of the Pid Algorithm), or purchase a PID kit from some vendors. NI have a PID kit that also can autotune the parameters. Or you can get someone from your neighboring school to help you with the algorithm
Re: Test
John, This seems to be working, let us know if you continue to have problems. Regards, Sarah
Bring a Calling VI's front panel to the front of the desktop
My main VI calls sub vi's which open and close or sometimes not but the main VI should come to the front when executing in its own domain such as when it is time to select another choice. The question is " How can I make my VI come to the front of the desktop when needed?" IS there a foolproof way? Thanks
Re: Open Access from Labview
Hello, The preferred method of database communication with LabVIEW is the Database Connectivity Toolkit. http://digital.ni.com/public.nsf/3efedde4322fef19862567740067f3cc/f763aa1d7cd3c83d862568e8007c51cd?OpenDocument";>Here is a link that may help you find more information about this. Also, you may want to look into some examples that have shipped with LabVIEW. They are found under "..LabVIEW\examples\comm\access.llb" Jeremy L National Instruments
Re: how to create a help file for a VI
Hi Mudda; Assuming you are using Windows, with LabVIEW, you can create the necessary files to create a help file, but you can't create the help file. In order to create your help file, you need a WinHelp compiler. Also, what LabVIEW allows you to do is to create a file that correspond to the documentation of you VI, so you need to fully document you VIs first. To document you VI, go to File -> VI Properties and select "Documentation" from the menu. You can access the VI Properties also by Right-clicking the VI icon in the top-right corner of the Window. To document the controls and indicators in your VI, Right-click the control or indicator and select "Description and Tip...". To create the documentation files, go to File -> Print. At some point, you will have the option to select a Destination. Select "RTF File" to generate the files a WinHelp compiler understand. As you will see too, you can also create html files for your VIs. It can be a good alternative for WinHelp files. There are some nice Help editors outhere. I use HelpScribble. You can see a very simple help file I created with HelpScribble in my small projects http://www.jyestudio.com/labsec/tools.shtml";>VI Background Check and http://www.jyestudio.com/lview.shtml";>VIs for DeployMaster. Regards; Enrique Vargas www.visecurity.com
Re: using MS Databound grid in Labview
Hello, I am not familiar with the databound grid control you refer to or with databases in general. However, instead of recreating its functionality, you could look into the LabVIEW Database Connectivity Toolkit which simplifies database communication. You can find out more information about this toolkit by going to http://www.ni.com and clicking on "Products and Services." Click on the LabVIEW picture under the Software column. Scroll down to "LabVIEW Add-Ons" and select the "Database Connectivity Toolkit" from the drop-down box. A direct link is http://sine.ni.com/apps/we/nioc.vp?cid=6429&lang=US";>here. I did look into using this control. One reference I found (http://dbforums.com/arch/130/2003/10/358690";>here) says that the DataGrid control has replaced the Databound Grid control. The Microsoft DataGrid control is available as an ActiveX object in LabVIEW. Can you elaborate on not being able to set the record source? I was able to put an ActiveX container on the front panel and insert into it a "Microsoft ADO Data Control." If you right click this object, go to Adodc and then ADODC Properties, a properties window pops up. At the bottom you can set the connection string. There is also a tab at the top labeled "RecordSource." Will this allow you to set the record source to what you require? As for how to bind the ADO data control to the DataGrid control, you will need to know the series of ActiveX commands to do this. Once you know this, you can execute these commands in LabVIEW using the ActiveX palette which is located in the Communication palette. You can also browse the example finder for help in using ActiveX. To open the example finder, go to Help, Find Examples. The ActiveX examples are located under the "Communicating with External Applications" folder. If this does not answer your question, can you post some example code illustrating what you are trying to do or perhaps elaborate more on which parts are causing the problem? Also, I did not understand your comment about running out of screen space. Happy coding, Grant M. National Instruments.
I pull fiftyfour bytes of data from MicroProcessor's EEPROM...
I pull fiftyfour bytes of data from MicroProcessor's EEPROM using serial port. It works fine. I then send a request for 512 bytes and my "read" goes into loop condition, no bytes are delivered and system is lost I pull fiftyfour bytes of data from MicroProcessor's EEPROM using serial port. It works fine. I then send a request for 512 bytes and my "read" goes into loop condition, no bytes are delivered and system is lost
Re: Array from C function
Hello Helmut Problems with arrays is that you must reserve some space in memory for them. You can do it from CINs using the "memory manager" from CIN tools, but the easier way is to build the array in LabVIEW and pass the pointer top the dll. Inside DLL use this pointer to load the data to it and return back. In this way dll does not have to make a memory space for array. The disadvantage of this is that you need to know what the size of the array is in order to initialize the array before calling the dll. If you need some more of it try looking into: "lvexcode.pdf" hope it helps. Pawel
Re: P4 Hyper-Threading and LabVIEW7Express
I have similar problems with ActiveX VB DataSocket component and DataSocket Server. I have a dual processor XEON machine and if I enable either the second processor, or hyper threading then the application in the auto-read mode (answering interrupts that are sent from the server to a subscriber) will often miss interrupts. After a couple are missed then things seem to be all jammed up and no more interrupts are answered. However, this is only for transfers of large data arrays and does not seem to affect transfers without interrupts of boolean attributes. Have not tried all other permutations of varible types and attribute types, but I think it is clear from the other comments (especially Elisabeths's) that hyper threading and/or dual processors can not be relied on. Brad Boyce
Re: Further Examples for the Picotech ADC200 Series
Hello Wayne, A good place to start for example code is the product manufacturer and it seems like you have already done that. National Instruments also provides example code we have created as well as from other users. You can search this library by going to http://www.ni.com and clicking on Support. In Option 3, click "Example Code" and you can search there. Another option is to search the instrument driver network for your hardware. You can search the instrument drivers by clicking "Instrument Drivers" from Option 3 of the support page. Then either click "Download" on the left hand side, or "Search Drivers" under "Top Downloads." Instrument drivers often come with an example VI which shows how to use them. Unfortunately, it looks like neither place has any examples for your specific product. We are unable to provide examples for every product. However, if you'd like, you can click the "Driver Request" link on the instrument driver page. If enough requests come in for a particular product, we will create a driver for it. Good luck in your application development. Grant M. National Instruments
Re: Communication with AOL Instant Messenger
Hello, LabVIEW does support ActiveX controls, which I believe would be the way to access AOL Instant Messenger. However, I do not know of any current ActiveX controls that have been published by AOL for free development purposes. You may want to go browse through AOL's website for this control. Otherwise, I have seen some ActiveX Instant Messenger applications that have already been created by other third-party vendors. You might want to take a look at those as well. Let me know if you find anything! Good Luck! Jeremy L National Instruments
Re: Memory error
Hello, Can you provide any additional information about this memory error such as the error message? Also, is this a LabVIEW memory error or a Windows memory error? Crashes in LabVIEW when working with CINs are frequently caused by errors in the C code of the CIN. Since a crash doesn't happen for several hours, it might be a small memory leak which eventually crashes your application. A large amount of memory is being used by this CIN and it is called frequently. The likely cause of the crash is that something is not being deallocated properly or perhaps the parameters are incorrectly passed to the CIN. For some information on using CINs, go to http://www.ni.com and click on Support. In Option 3, enter "memory error CIN" (without quotes) in the Keyword box. The first link should be a KnowledgeBase referencing memory errors. A direct link is http://digital.ni.com/public.nsf/3efedde4322fef19862567740067f3cc/a4573dda218e5f0d862567a600666192?OpenDocument";>here. This will give some information. In the "Related Links" section at the bottom, there is a reference to the Code Interface Reference Manual. If you follow that link and open the PDF (http://www.ni.com/pdf/manuals/320539d.pdf";>here), you will find a lot of information on using CINs. On page A-2 of Appendix A, it talks about VIs containing CINs crashing LabVIEW. However, this reference is not the most up to date. To find the current information, open LabVIEW and go to Help, "Search the LabVIEW Bookshelf." Under "Concepts and Techniques," click the "Using External Code in LabVIEW (PDF only)" link. An easy way to test if the CIN is causing problems is to enclose the CIN inside a case statement. Make it the false case and wire a true constant to the case. This will disable the CIN from being called. In the true case, generate (randomly or statically) the same amount of data that the CIN returns. Try running your program this way for several hours and observe if it still crashes. If not, the problem is with the CIN and you'll need the source code to debug it. Also, if this board is made by NI, try using the VIs rather than a CIN. Happy coding, Grant M. National Instruments
Re: error -2147221480 occured at building dll stub
Hello, Thank you for contacting National Instruments. I understand that you're experiencing issues when trying to build a LabVIEW dll. Fortunately, there is more information regarding this problem within our online knowledge base. See the following link. http://digital.ni.com/public.nsf/websearch/0DFFE3BA861E689686256CAA006BA7F1?OpenDocument I hope this helps. Please don't hesitate to notify me if you need further assistance. Have a great day! Kind Regards, Joe Des Rosier National Instruments
Re: reading binary data
For reading binary, there's one example called Read Binary File that reads a file of DBLs. You can modify this to read whatever you want. If your data is integers, wire an I32 constant to the byte stream type input of the Read File function. If your data is floating point, replace with a SGL constant. Both I32 and SGL are 32 bits so you'll have to know what the files were saved as. There are also a couple of functions on the File I/O>Binary File VIs palette that you should look at. They are Read From I16 File and Read From SGL File. They can also be modified and saved as different names. What you have to do is find the subVI that has the File Read function in it and change the byte stream type to match the format of your data. Once you've read the data, then the easiest way to save it as text is the Write to Spreadsheet File function on the File I/O palette. If you have problems, it would help if you could attach a file with sample data and details on how the file was created.
Re: where can i find additional DDE resources???
Hello, Dave has posted a couple of example programs which use DDE in LabVIEW. You can find a tutorial by going to http://www.ni.com and clicking on "Support." Under Option 3, search "Tutorials/Application Notes" and enter "DDE LabVIEW" (without quotes) into the keywords box. One of the first links that will appear is "Using DDE in LabVIEW (Windows Only)." It is a tutorial which introduces DDE and LabVIEW. You can link directly to it http://zone.ni.com/devzone/conceptd.nsf/webmain/14134D7CE042EDBF86256A3A006BD87C?opendocument";>here. LabVIEW also ships with a couple of DDE examples. In LabVIEW 7.0, you can find these by going to Help, Find Examples. In the Browse tab, select Task and navigate to "Communicating with External Applications" and then to "Dynamic Data Exchange (DDE)." If you are using a different version of LabVIEW and unable to locate these examples, please let me know. The DDE functions are no longer in the palettes as of LabVIEW 6.0. You can still find them in Program Files\National Instruments\LabVIEW 7.0\vi.lib\platform\dde.llb. However, we recommend that you use ActiveX instead of DDE. There are quite a few examples for using ActiveX in the Example Finder under "Communicating with External Applications" and then "ActiveX." You can also find an introduction to ActiveX by searching the Tutorials and Application Notes like above. Searching for "ActiveX LabVIEW" (without quotes) will return a link to a tutorial named "ActiveX and LabVIEW." A direct link to this document is http://zone.ni.com/devzone/conceptd.nsf/webmain/5401BE584FBAEECE862567C2006D36C7?opendocument";>here. If you need to use DDE, see if these resources will provide the background you require. If you are flexible, try using ActiveX as it is simpler. Feel free to post again if you have additional questions. Happy coding, Grant M. National Instruments
Re: Uninitialized array\cluster takes CPU power
Hello tst, Thank you for your inquiry regarding CPU usage when using an array covered by a control. After running the VI I understand the problem that you are having and this problem does exist in standard LabVIEW 7.0. It takes a lot of resources to update a front panel when controls/indicators are layered on top of each other. I=92m not sure exactly in what situation you might need to place controls on top of each other and I assume that you need all of the features that you mentioned resolve the problem. One possible solution would be to rid the VI of the =93Array=94 local variable. This seems to speed up the update rate and solve your problem. Typically variables and especially global variables seem to slow down performance. The following link is one resource when troubleshooting this behavior. http://exchange.ni.com/servlet/ProcessRequest?RHIVEID=3D101&RPAGEID=3D135&H= OID=3D50650008002751&UCATEGORY_0=3D_49_%24_6_&UCATEGORY_S=3D0&U= SEARCHCONTEXT_QUESTION_0=3DVertical+Slider+Control+%28Classic+Control%29+ta= kes+50%25+of+CPU+Time+when+Loaded+in+Memory+Only&USEARCHCONTEXT_QUESTION_S= =3D0 Other responses similar to this can be found on the ni.com website by clicking the support tab at the top of the home page. Then search for =93Memory and CPU usage=94 from Technical Resources at the top of the page. I hope these resources help. Let me know if I can further assist you. Shea C. Applications Engineering
Re: What happened to the Developer Exchange?
Hi Ben, I posted a full explanation to this question in the http://exchange.ni.com/servlet/ProcessRequest?RHIVEID=101&RPAGEID=304&HOID=5065000800F4C0&USEARCHCONTEXT_CATEGORY_0=_49_%24_6_&USEARCHCONTEXT_CATEGORY_S=0&UCATEGORY_0=_49_%24_6_&UCATEGORY_S=0> LabVIEW General Insights . As to your question about lost work, for many posts that were created after the 17th, we lost the association with the user name. A question, like this one for example, was replicated back from our NNTP newsgroups (comp.lang.labview) and we lost both the user name the post ID. So, we won't be able to record this in your stats, and you won't receive an email notification of my response. We back up the Developer Exchange nightly. We decide to revert to a backup from the 17th because our research indicated that this would be the safest back-up to restore. We're now working on ways to mitigate the risk of the error occurring again. I do apologize for any inconvenience or confusion this has caused. Regards, Sarah Patterson Web Support & Operations Manager
Re: Run-time licenses
I remember the 5.1 licensing. It used to be that you could distribute an EXE that you made with LV5.1 to 6 (I remember the number 6) other computers, but you could distribute the EXE to as many computers as you had NI cards in (and only NI DAQ, GPIB, etc. cards - no other vendors). We thought that was pretty bad. You had to purchase the right to distribute wider. LV7.0 (and 6.0 and 6.1) does not have that limitation. You can distribute your EXE files as far as you want. Much more reasonable policy. You just can not distribute LabVIEW itself (of course). But since the LabVIEW run-time engine is free, that's not a problem. Rob
Re: why the output strings are error codes?
What bit twiddling are you doing and what kind of error codes are you getting? As one of your previous questions pointed you to the bit twiddling challenge, it's certainly possible to do in LabVIEW but a bit more information is required. Posting an example VI with help a lot.
Re: Errors 410 and 420 with Agilent 34970A
According to the manual, 410 is Query Interupted and 420 is Query Unterminated. The first can happen when you send a query but there is still data in the output buffer. If you've requested a certain number of bytes during a read, you probably need to increase that number in order to sure that all data is retrieved. A Device clear command will clear the error. Query Unterminated happens when the instrument is addressed to talk but there is no command pending that will place data in the buffer. The example in the manual cites sending a CONFIG command which doesn't generate data and then doing a read. Are you using the drivr from NI or have you written your own?
Re: Why does a VI execute differently in step-by-step mode?
Hi germ, I have some of these K2400 in use - wrote my own driver at a time, when the "official" drivers were not available - up to now without problems - in stepmode or fast. Pls send your vi - or picture of Diagram for discussion ; maybe to me: [EMAIL PROTECTED] You can get sweep-programs - taylored for K2400 regards Werner
Re: need hp4156a driver for labview 5.1
Hello, Go to http://exchange.ni.com/servlet/ProcessRequest?RHIVEID=101&RPAGEID=135&HOID=50650008009DC0&UCATEGORY_0=_49_%24_6_&UCATEGORY_S=0";>this thread and take a look at the answer provided. I think this is what you want. Jeremy L National Instruments
Re: setting a single button to do a task in different loops
This is usually not too much of a problem. You can create a local variable from the button and use that to read in one of the loops. You will not be able to use the mechanical action "Latch when..." for the button, but have to change it to "Switch when...". This also means that one of the loops will probably have to turn the button off again. It's a little more programming, but it works. For another method you could use a notifier (or an occurance, but I'm not fond of those) for one loop to "tell" the other loop that the button has been pressed. Rob
Re: I pull fiftyfour bytes of data from MicroProcessor's EEPROM...
Hi Deeply Annoyed, Please post your code or an image of same. We a pretty good about getting issues like this nailed if we have visual aides. Otherwise we have to continue the guessing. Re: Timeout I think Joe was talking about the "Timeout" for the serial read, not a wait timer. Like I said, post code. Trying to help (without annoying you), Ben http://exchange.ni.com/servlet/ProcessRequest?RHIVEID=101&RPAGEID=261&HRedirected=True&HUserId=101_3529&RFORMNUMBER=6";>Ben Rayner http://volt.ni.com/niwc/common.jsp?page=products_certification_cld&node=10638";> Certified LabVIEW Developer www.DSAutomation.com
Re: Cannot call "mask and limit testing" inside a loop
Dear Martin, Thank you for contacting National Instruments. I would like to apologize for the delay in responding to your support request. >From the information you have provided, it sounds like you are running your VI and experiences issues with the lower and upper mask refreshing after subsequent iterations of the FOR loop. The =93Mask and Limit Testing=94 Express VI is not intended to function inside a loop; however, you can fortunately modify this Express VI to perform the desired action. To do so, please follow these instructions: 1)=09Open the Block Diagram for your =93test_limits_testing.vi=94 file 2)=09[Right Click] on the =93Mask and Limits Testing.vi=94 Express VI a.=09Select [Open Front Panel] b.=09When prompted to convert to a standart subVI, choose [Convert] 3)=09[Right Click] on the =93subMaskLimitTesting.vi=94 Express VI a.=09Select [Open Front Panel] 4)=09From the toolbar, select [Window] >> [Show Block Diagram] 5)=09You should see two subVI=92s named =93MatchDT=94 (white icons with black text) a.=09Wire a [True] Constant to the =93Reset 2=94 input terminal for each of the =93MatchDT=94 subVI=92s i.=09To do this, right click each input terminal and select [Create]>>[Constant] ii.=09Make sure the constant value is set to [T] for =93true=94 6)=09Save and Close the subVI=92s 7)=09Re-run your =93test_limits_testing.vi=94 file, and the masking limits should re-initialize upon each loop iteration You have successfully customized the VI to function within a loop. I hope this helps! Please don=92t hesitate to let me know if there=92s anything else I can help with or clarify. Have a great day! Kind Regards, Joe Des Rosier National Instruments
Re: Can't control the HP3325b (error code:Hex:BFFA0010)
It sounds like you are getting this error because one of your parameters is out of range. Range Checking is an advanced feature of IVI drivers. Try changing the values on the front panel controls (or running the Getting Started VI with its default values) until the error goes away. Also, there should be an elaboration for the error which should tell you exactly which parameter is out of range. Jason
Re: Instrument I/O Assistant on Target Machine error
Hello =96 It appears that your LabVIEW executable is causing a VISA timeout error on the target machine. Please verify that the current NI-VISA runtime engine is installed. It can be downloaded http://digital.ni.com/softlib.nsf/webcategories/85256410006C05558= 6256BAC002C51FA?opendocument&node=3D132070_US=94>here. See http://digital.ni.com/public.nsf/websearch/DB5E81EAFC9A463886256A= A8005EA2B1?OpenDocument=94>this KnowledgeBase for more information about VISA executables not running on non-development machines. If these suggestions do not solve your problem, please be more specific about the error. A screenshot of the error or the exact error code would be helpful in finding a solution to your problem. Have a great day! Becky B. Applications Engineer National Instruments
Re: How can I use Voip to communicat with my voice in Labview
Hello, Thank you for contacting National Instruments. I would like to apologize for the delay in responding to your support request. I understand that you would like to use Voip capabilities to access your computer remotely and then communicate with LabVIEW using speech recognition. I know of a LabVIEW example file that describes the voice recognition capabilities of LabVIEW. Also, there is a link to example programs within this database entry. To access the entry, go to the National Instruments support portal: http://niweb2.natinst.com/ae/portal.htm and search for =93voice recognition LabView.=94 Click the first entry in the list: =93Voice Recognition in LabVIEW - Example - Development Library - National Instruments.=94 You will be able to find helpful information here. I hope this helps! Please let me know if I can help you further. Have a great day! Kind Regards, Joe Des Rosier National Instruments
Re: I pull fiftyfour bytes of data from MicroProcessor's EEPROM...
Hello, Can you elaborate what you mean by the system is lost? Ben has suggested a good idea of posting the code in question. It would also be helpful to know which version of LabVIEW you are using and which serial VIs you are using. His clarification of the timeout for the serial read is also a good suggestion. You mention that you have a 100ms wait statement. Is this in-between when you write the command and read the response? Sometimes the hardware needs a small amount of time to respond to the command. Putting a small delay between writing the command and reading the response allows the instrument to respond. If you have this wait statement here already, try increasing the wait time. Another option is to add a call to the "VISA Bytes at Serial Port" property node. This will allow you to check if data has been returned from the device yet or if there is an error with the command you sent. Try incrementing the wait time before reading a response and checking how many bytes are at the serial port. If they do not fix the problem, please post all or a portion of your code so we can get a better idea of the problem. Grant M. National Instruments
Re: I need to connect these to programs and am unsure how to do it
Let me see if I understand you correctly. Basically you are trying to include data acquired from one VI and include it in another. By making your continuous data acquisition VI a sub-VI and placing it on the block diagram of wed.vi you can read data directly from the spreadsheet file. You will want to use the File I/O VIs to read data from the spreadsheet file. These VI can be found in the File I/O function panel by right-clicking on the block diagram and following Functions->All Functions->File I/O. Here is an example that may or may not help: http://sine.ni.com/apps/we/niepd_web_display.display_epd4?p_guid=B45EACE3EE8D56A4E034080020E74861&p_node=DZ52303&p_source=External";>Continuous Acquire and Chart to Spreadsheet If this fails to help you please post again with further questions. Thanks! Craig H. ps. Array manipulation may be needed to get the data from each of the four channels to display as desired on the intensity chart. Post again if you have questions about that as well.
Re: Bring a Calling VI's front panel to the front of the desktop
You can use a VI Server Property node to bring a VI's front panel to the front. 1. Drop a Property Node from the Application Control sub-palette on your diagram. 2. Right-click on it to Select Class >> VI Server >> VI 3. Now select the Front Panel Window >> Is Frontmost property. 4. Change the property to Write (right click to bring up the pop-up) 5. Wire a TRUE to bring the VI's front panel to the front. You can use the property node any time you reach a point in your code that requires user input on that panel. Daniel L. Press PrimeTest Corp. www.primetest.com
Re: How to sample a random signal generated by random generator?
Hello, I apologize for the delayed response. I took a look at your VI. In its current state, you will not be able to extract Y values for X values in-between those that you plotted. The XY graph is simply connecting your points to provide a visual representation. No real data exists between the points that you plotted. What you will need to do is first use one of LabVIEW's built-in curve fitting functions to fit a curve to your randomized data. These functions are located on the Analyze >> Mathematics >> Curve Fitting palette. Once you fit a curve to your data, you will be able to trace the curve with your cursor. You can observe the XY-values that the cursor passes over by displaying the cursor legend. Right click the XY-graph and select Visible Items >> Cursor Legend. You may also want to consider using LabVIEW's mathematics functions to evaluate the x-values you are interested in. One solution would be to vertically shift your best-fit curve by the threshold value and evaluate the zeros of the curve using LabVIEW's built-in functions. These functions can be found on the Analyze >> Mathematics >> Zeros palette. I hope this helps! If you have further questions, let me know. Matthew C Applications Engineer National Instruments
Creating/linking compiled shell vi and user vi code -How?
I am looking for an example of how to create a shell vi that gets compiled once and a user vi that can be modified and ultimately linked in some way to the previously compiled shell to create a user-customized vi. In essence, the shell vi does a lot of processing that the user doesn't need to worry about -- the user must be entirely isolated from the source code. The user needs to customize the processing that goes on in the shell -- for example, taking raw data acquired from a DAQ and processing it into some meaningful data -- say, multiplying two channels and adding a third to get some useful info. The shell handles display, logging, etc. of the data before and after being processed, but the intermediate processing is the user vi responsibility. How can I create and link the two components? Is there an example of this I've missed? Thanks.
Re: /drivers/daq/setup/ni_rundll or one of its components not foun
Hello, Thank you for contacting National Instruments. I may have found a knowledge base entry that accurately addresses your problem. Following these instructions will, hopefully, resolve your Dll problem. To access the knowledge base entry, please do the following: 1) Go to http://www.ni.com 2) Scroll down and click [KnowledgeBase] under "Technical Support" 3) Click [Search all entries] 4) Search for "daq rundll" 5) Click the first link "Partially Complete NI-DAQ 6.1 Installation Gives Error about a Missing RUNDLL" 6) Follow the on-screen instructions I hope this helps. Please feel free to notify me if you need more assistance. Have a great day! Kind Regards, Joe Des Rosier National Instruments
Re: Connecting a dll to labview
Hi Wiebe, Thanks a lot for your response. I shall go through the vi u sent me , study it step by step and will get back to you if I have further problems. Thanks a lot, Ajit
Re: How can I login to a website from LabVIEW, for example to Hotmail ?
Hello, Thank you for your inquiry regarding website login. I understand that you would like to logon to Hotmail using LabVIEW 6.i. DataSocket however, is used to send and receive data between computers running LabVIEW. One possible solution is to use ActiveX events to run an internet browser window on the front panel of your VI. I assume however, that you would like LabVIEW to automate this task. Unfortunately Hotmail is a secure site using Microsoft Passport .NET. NET is supported by LabVIEW 7.0 but the .NET control of Passport would have to be provided by Microsoft. The following link is a great resource to learn more about the .NET single-login system. http://msdn.microsoft.com/msdnmag/issues/02/09/Passport/ I hope this resource helps. Let me know if you would like more help using a browser window on your front panel using ActiveX. Shea C. Applications Engineering
Re: Turn off a single plot of a multiple plot waveform graph
I believe you can do this with a 2-segment property node. IN the first segment, select the "Active Plot" property, In the second segment, select the "Plot/visible" property. Hope this helps. Dave
Re: How can I programmatically change the number displayed on a digital control?
Right click on the digital control and select "Create Local Variable", write to a default value if the user input is invalid. or, right click on the control and select property "Data Range", you can change the data range which will be forced upon when user enter data. Joe
Re: Hitting Back Space in Remote Panel while entering character in string control
Hello A. Senthilnathan, Thank you for your inquiry regarding Remote Panels. After building an application using Remote Panels I understand the problem that you are having. However, the Backspace keystroke is assigned to IE and can only be reassigned by possibly modifying the IE registry. One possible solution if the string to be typed is not long is to use CTRL+BACKSPACE in the text field. This will reset the text field and allow you to retype the desired text. Another solution is to use IE 4.0. More information on this topic can be found at the following site http://support.microsoft.com/default.aspx?scid=kb;en-us;191931 I hope these resources help. Let me know if I can further assist you. Shea C. Applications Engineering
Re: Stanford SR830 Driver
I don't know much about the 830 lock-in amplifier, but most instruments use the same commands regardless of whether you use GPIB or RS232. So, I suggest that you download the LabVIEW driver from http://ni.com/idnet/, and modify it to work with the serial port. It may work with no changes. Or, you may have to modify the Initialize VI by adding "VISA Configure Serial Port" to set the baud rate, parity, handshaking and other RS232 settings. Let us know if this works. I hope this helps. Brian
How can I programmatically change the number displayed on a digital control?
In my application, there are two while loops. The inner loop has a digital control where the user can enter a number. If he enters an invalid number, I want to clear his input.
/drivers/daq/setup/ni_rundll or one of its components not foun
I cannot install daq because of this message. Where is the component? thanks
Re: How can I send an Email automatically?
Hi Mike, I would like to send you an email directly to ask you for the LabView drivers for Watlow 942. I tried their website and find nothing. I am a beginner in the forum and looking for the way send you an email directly (just for some private questions) if it is possible and legitimate. My email is [EMAIL PROTECTED] Thank you very much. Thang
I would like to know how to download the fieldpoint software for fp-1000/1001.
I can't find any ways to download the fieldpoint software in "ni.com" and also "ftp.ni.com/support/fieldpoint/Server
Re: I would like to know how to download the fieldpoint software for fp-1000/1001.
You will find the Fieldpoint Software, both firmware and drivers, in the Drivers and Updates section. Simplest way to navigate there is to follow the steps below. I also attached the URL at the end of this responce. 1. goto http://www.ni.com/ 2. Under the Support category select the link to Drivers and Updates 3. In the Browse Option Select 'Current Software Versions' 4. Follow the first link for 'Distributed I/O - Fieldpoint' 5. You should now be able to download both the Firmware and the Hardware Driver for the FP-1000/1001. Alternatively the direct URL is: http://digital.ni.com/softlib.nsf/webcategories/85256410006C055586256BBB002C0E29?opendocument&node=132060_US This should get you what you are looking for. Regards, -Christer
Re: Problem building a VI to test a dll.
Hi Ajit, I will generally give 4 start rating to self-answered Q's but you have not provided any information! What was the problem you had? How did you over-come it? By providing this info, your question and answer becomes a resource that may help others in the future. Ben
Re: Grant/reject access to USB thumb drive
Thanks. This partially answers my question. What exactly I want is USB port access control via LabVIEW either directly or through dlls. I am using LabVIEW 6.1 currently but will soon be upgarding to 7.0. Sheela
Re: Where can I find the virtual thermometer in the LabVIEW 7 express evaluation?
Hello, Thank you for contacting National Instruments. It is my understanding that you are trying to find a VI that mimics a thermometer within LabVIEW 7.0. Fortunately, LabVIEW 7.0 has a library of built-in example VIs, several of which deal with temperature analysis. First, open LabVIEW 7.0 and select [Help]>>[Find Examples]. Search for "temperature." Six example VIs will appear. I think the "Temperature System Demo" VI will best suit your needs. Please keep in mind that you can save any of the example VIs under a new name and proceed to customize them for your desired functionality. I hope this helps. Please let me know if I can further assist you. Have a great day! Kind Regards, Joe Des Rosier National Instruments
Why doesn't LabView scale my objects properly in the front panel?
In LabView 6.02 (Windows 2000) I have experienced problems when using the "Scale all objects on panel as the window resizes" option under VI properties. Try the following example: Go to the front panel and draw two arrows (from Decorations), one vertical and one horizontal (make sure they are perfectly straight). Now, resize the window, using the bottom right corner several times. You will soon find that the two arrows become increasingly missaligned and are not perpendicular to each other anymore. The problem gets worse the more you play around with the window size and they will never return to their original state. Installing the 6.02 patch did not seem to help at all.
Re: Memory leak only when compiled
Thanks Randall, the problem was related to file I/O. I found a subVI that was using converted LabVIEW 5.1 versions of the configuration file VIs with references opened with the LabVIEW 6 Open.vi. The reference was passed back out and closed with with the LabVIEW 6 close, but apparently there is some incompatibility here that only shows up when the application is compiled. Matt
Re: Utility VI for searching for the occurance of a string in all files in a directory
It should be very simple to build it. The first step is to list all the files in a directory, then for each file, read the file (use the Read Characters From File.vi, depends the file size, you might want to break up the read operation), then use the "Match Pattern" vi from the string pallette to find what you need. Following is a simple psuedo code. Get a list of all files in a directory For each file read the file in as binary string or character search the string using "Match Pattern" or "Search N Replace" do whatever you need with the result Next file Joe
Re: unable to read the freq and amplitude
thanks for the intrest got the problem sorted
Re: Turn off a single plot of a multiple plot waveform graph
Hi Wayne, http://sine.ni.com/apps/we/niepd_web_display.display_epd4?p_guid=B123AE0CBC3E111EE034080020E74861&p_node=DZ52038&p_source=External";>Here is a link to an example vi that shows you how to do it. Basically, it uses the Active Plot property and transparent plot colors to "enable/disable" certain plots. Hope this helps! Let me know if you have any other questions! Jeremy L. National Instruments
Re: Type descriptors of controls and indicators
Hello Jim, thank you for your answer. It is no big problem. The reason is I want to use different front panels with different controls (placing as a subpanel), but the main program in the background is always the same. Due to your answer I have to lock the registration to the controls names now and I'm not very flexible. It would be more comfortable to use only "mechanical action" instead of names. Therefore I'm very interrested in your workaround. Regards Heinrich
Re: P4 Hyper-Threading and LabVIEW7Express
Elizabeth, I agree with Bruce, it is frustrating trying to use the NI site to answer questions about compatibility. Or what is the latest version. For instance, see if you can find the answer to the question does DataSocket server work with XPpro? With Hyperthreading? With XEON processors? With dual processors? What is the latest version number for Measurement Studio for Visual Basic? How do I check to see if I have the latest? I have found the answer to these questions only after hours of searching! That said, on the balance the NI product is super. Brad Boyce
Re: /drivers/daq/setup/ni_rundll or one of its components not foun
I had already tried this, the problem is that the path that autoinstall is looking for is inside the codes on the CD and I cant access that to change it, it does not give a browse option, it is hardwired. The problem is that ni_rundll exist on the CD in drivers/DAQ/cabs/setup/ but it is listed as ni_run~1 as are several other files.
Re: After reconfiguring a 6534 from output to burst input, I get error 10614.
Hello John, It sounds like you've figured out the answer to your problem. For a bit more information on programming DIO boards, check out the product manual. The manual can be located by going to http://www.ni.com and clicking on support. In Option 3, select "Product Manuals" and in the keywords box enter the specific board you have (e.g. 6534). There is a "Creating a Program" section in Chapter 2 which gives various flowcharts for performing handshaking. Happy coding, Grant M. National Instruments
Re: Problem with linking dll.
Hi Becky, I could figure out the way to do this, I will get back to you if I have further doubts. Thanks a lot for your help, Ajit.
Re: Run-time licenses
This is from the LV 5.1 license agreement: "7. DISTRIBUTION RIGHTS. (A) Generally. For SOFTWARE not listed in 7(B) below, you may distribute your application (.exe, .dll, html, .alx, etc.) created with such SOFTWARE and/or utilizing relevant configuration utility executables (i.e., NI-DAQ Utility, VXIEdit, VXItedit, etc.) that are part of such SOFTWARE without royalties or fees to NI, provided that: (1) your application is not itself a general-purpose development tool, function library, or component for data acquisition or instrument control operations, user interface operations (graphs, strip charts, gauges, meters, etc.), analysis routines, or National Instruments TestStand( sequence files; (2) you include the following copyright notice, either on-screen in your application's About Box or in your application's written documentation, with each distributed copy of your application: "Copyright (c)[yr] National Instruments Corporation. All Rights Reserved"; (3) you do not use NI's name, logo, or trademarks to market your software program without NI's express prior written permission; (4) you agree to indemnify, hold harmless, and defend NI (including its officers, directors, employees, and agents) and its suppliers from and against any claims or lawsuits, including attorney's fees, that arise or result from the use or distribution of your application; and (5) if you are using Microsoft SDK files or other third party files, you must conform to the requirements described in the SDKLIC.TXT or the other applicable files. (B) Run-Time License Required. If the SOFTWARE is National Instruments SQL Toolkit, National Instruments IMAQ(TM) Vision, National Instruments TestStand(TM), National Instruments Test Executive, National Instruments Lookout(TM), or such other software product as NI may from time to time designate as requiring a separate run-time license for application execution, you may not distribute applications (.exe, .dll, html, .alx, etc.) created with (or if applicable, utilizing) such SOFTWARE unless: (1) the end-user of the application has acquired a separate run-time license from National Instruments for the applicable SOFTWARE for each computer on which the application is used and (2) you comply with the provisions of 7(A)(1), (2), (3), (4) and (5) above. Please contact NI or, if applicable, the NI subsidiary serving your country for more information regarding the current list of software requiring separate run-time licenses for application distribution and obtaining applicable run-time licenses." It was my belief that the only restriction on distribution was the run-time licenses mentioned in 5B above and not for the LabVIEW run-time. I certainly distributed a lot of different executables with my single LV license. The LV 5.1 run-time engine is available for download so I don't see where there are any restrictions but then I'm not a lawyer. There was a rather lengthy discussion on http://www.info-labview.org/";>info-labview a couple of months back regarding the licensing of LV 7 executables and VISA so you might want to check that out.
Re: setting a single button to do a task in different loops
Hi Rob, thanks for the reply, My program requires the button to have the "Latch until released" property, so I was wondering if you could tell me a little more about using a notifier Thanks, Dogbert
