Changing local variable dynamically

Hi, I'm testing 8 motor wich run in sequence for a certain amount of time... Each motor has a specific graph and information that should be updated... I'm using a for loop (n=8) and I'd like to use a generic local variable (changing its reference according to 'n') to update the right graph each

Ploting graph on button click

On button click i am appending a new element to array, so that i can have selected reading in my array. This all things mention above is done in case structure, at true condition. now i want to use this arrays(witch are created at true case) When i press button plot, i should get a graph of above

Buying LabVIEW abroad

Hi folks, Here in the UK, the Full version of LabVIEW costs 1685 UK pounds. In the US, it costs $1995, = c. 1100 UKP at the prevailing exchange rate. Even supposing we have to add VAT at the prevailing UK rate, this only takes the price up to c. 1300 UKP. So, is there any reason at all why I

creating enum from list

I would like to update a number of enums in my system using some sort of script, that would take c++ files, find enums in them and convert these enums into LV eums. I'm pretty sure we can get to the point where we have the elements of the enum in some sort of list, and the c++ enums will start at

Removing files from Source Code Control

I have 420 seperate Vi's that form a project that is part of the LabVIEW inbuilt source code control , however due to test equipment problems I now need to have two slightly different versons of the same project and ideally they will be installed on local machines (currently on network drive) for

Labview UK pricing?

An excellent question - maybe our friends at NI(UK) could give us an answer? -Original Message- From: [EMAIL PROTECTED] [SMTP:[EMAIL PROTECTED] On Behalf Of Simon Whitaker Sent: Wednesday, March 31, 2004 9:41 AM To: Info-LabVIEW List Subject:Buying LabVIEW abroad Hi

LabVIEW and USB to 1-wire (DS2490)

I have made an USB to 1-wire adapter using DS2490. I can communicate with the DS2490 using USB standard requests, but I'm having a hard time getting data from the device attached to the DS2490 (i.e. DS1820). I'm using LabVIEW 7express.

Re: dinamically reading load cell

How did you progress ?

excel headers

I am continously acquiring data from transducers nad tthermocouples using the while loop and writing data to exel sheet. My problem is that i have not been able to automatically write headers of my choice to the excel sheet thereby categorizing the data from each transducer and thermocouple. How

Re: LabVIEW Plug-in architecture

If you have LV7, there's one here: \Program Files\National Instruments\Labview 7.0\examples\viserver\plugins.llb\Plug In Example.vi HermanChan [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] I found in LabVIEW User Manual 17-2 saying that: Create a plug-in architecture for the

Re: microsecond counter

err how to post in group? yeah it indeed help me in getting time stamps more than what i required(nanosecond counter)

Hi!!I want to scale an analogic signal, and I don´t...

Hi!!I want to scale an analogic signal, and I don=B4t understand very well how interpolated option works in Scaling and Mapping. Can anyone explain to me, the option Interpolated, in the function , Scaling and Mapping? Thank you!

Re: Changing local variable dynamically

dumbest_dummie [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] Hi, I'm testing 8 motor wich run in sequence for a certain amount of time... Each motor has a specific graph and information that should be updated... I'm using a for loop (n=8) and I'd like to use a generic local

Re: Ploting graph on button click

hi Julion.. i am very new to LabView, I am learning and working at the same time on LabView7 thanks for your help.. your both asn. was exactly what i want thank u very much. I gone through you ans to other que. Can you please tell what is that language. Regards Shital

Re: Ploting graph on button click

hi Julion.. i am very new to LabView, I am learning and working at the same time on LabView7 thanks for your help.. your both asn. was exactly what i want thank u very much. I gone through you ans to other que. Can you please tell what is that language. Regards Shital

How do I register to DotNET events?

Hi there, a couple of months ago I tried to register DotNET events with a labview application. I was told, that would be impossible right know. Through this feature stays very interesting for us, I'd like to re-request if anybody knows how this can be done or when NI plans to support this

unable to open resource files

I'm trying to execute a LabVIEW executable application from a simple C program, but I keep getting the error message unable to open resource files. The Labview application runs fine if I just execute it from the command line, but from a C-program it doesn't. I've tried the execl() function, and

Pointer to Pointer from DLL

Hello Dear Wireworkers Actually I'm drawing Code (some vi's) which give me access to a USB-Device. For this I'm using a dll which is provided by the manufacturer. It works great. I can send and recieve the data really fast. All the Basic Functions are woring properly. Now there is a Function

Re: clear xy graph...

hi while searching for my problem of clearing graph, i got your ans. i am very new to labView,i have labview7 i don't understand what is this cwgraph1.cleardata please give tell me indetail thanks in advance shital

Bill Gates Endorses the LabVIEW methodology

From a Reuters news story dated March 29, 2004 Gates also said advances in programming will allow software developers to create applications in less time by using visual representations of the inner workings of software rather than writing lines of programming code.

How can I define where my program opens a dialogue (for example in the middle of the monitor)?

I don't want to change the whole appearance of my VI, so it could be easier to define the position of my dialogue box that opens when I save my data. At the moment the dialogue box covers buttons where I can see what I'm saving (information I need to name my files).

Re: Labview UK pricing?

One guess might be Import taxes from a non-EU country. Another might be because of the localisation which has to be done for europe which might them be spread over ALL European versions of LabVIEW. Just guessing. Shane.

Re: Ploting graph on button click

I'm sorry, I'm french and I didn't really understand what you meant there ??!? Regards Julien

Re: excel headers

The easiest way to do this is to build a two dimensional array of strings. In the first row you can place your column headers. They you can use the array to spreadsheet string function. This will allow you to specify a delimiter, default is tab. They simply use the write characters to file

using picture ring with multiple controls

I am using a picture ring with 21 pics in it.each pic represent a state, I am using a flat task structure to execute this states. the question is how can I increment the picture ring from inside every single state/task? regards Luis

Re: How can I define where my program opens a dialogue (for example in the middle of the monitor)?

Are you using the standard SAVE dialog? Or are you using a custom VI as a dialog? If you're using the standard box, you can't change its location. You could move the window that calls it (the one with the info you want to see). Make it bigger, move the buttons to the outside edge, whatever. You

Re: VI loading times-out for 50 seconds when another networked PC is shut down

The paths to one or more of your VIs still point to your old computer. Only if it can't find the original does LabVIEW start to look for them locally. Once you've loaded everything with the old pc off the network, you should save every VI and the next time you do a load, it should automatically

Re: clear xy graph...

it's just a property node. like if you were to run a macro then look at the code for it. this is what it would look like. Just do what A rafiq said and you'll be fine.

Re: How can I fix this error code -1300..

That explains the error you got from the LV driver. The first thing it does is send the ID? string to get the type of instrument. There's a few more things you can try. Check or replace the GPIB cable. Try a different instrument and see if you can communicate with it. If that works then you know

RE: OpenG Coding Challenge - Remove Backspace

It will be some work, but something like the evaluation done by NI on the different submissions. My vote is evaluation for not only minimum time but memory foot print etc. For the 1st NI challenge I was just out of the top 10, but I was about 0.1% of the size of any of the top 10. I always

Programming guide for Amplifier research 30W1000B

Does anyone have the programming guide for an AR 30W1000B amplifier? Their website link is does not provide the manual and their customer service reps are out to lunch?

Re: Who can create a clock for me with the following functions??

Can you be a little more specific on your timer? From what I understand: I believe you want a countdown timer. You can set the time from which you would like it to count down. When the start button is pressed, it starts counting down. When you press stop, the time stops. If you press Start

I am looking for the solutions of application note 163, I tried but..

But it doesn't work as it should.

Re: Multiple Plots In Seperate Windows

Thanks thats really similar to what I am doing its just that my main form sends data which is causing the flashing. This design is a great idea. Thanks a MILLION for your help and time!

Re: How do you write to a 3D array?

3D array handling is not much different from 2D, you just have another coordinate to specify - page (row, column, page). Create a 3D array constant and wire it to e.g. the replace function and it will automatically scale up to show you the index and length options involved... PS. If you have XY

Re: OpenG Coding Challenge - Remove Backspace

Hmm. Just got round to my second approach and it also takes 20ms. However if I change it to subroutine it comes down to 8ms here. Have the posted results been normal priority or subroutine? -- Dr. Craig Graham, Software Engineer Advanced Analysis and Integration Limited, UK.

Can I create a drag and drop interface with Labview

Can I import COM objects and use these objects as a drag drop Laview user interface?

Re: How do I register to DotNET events?

I think now they have this fixed with 7.0. I do know that there was a bug. here is a link. hope it helps http://exchange.ni.com/servlet/ProcessRequest?RHIVEID=101RNAME=ViewQuestionHOID=506500080009ABECategory=LabVIEW.LabVIEW+General

RDA delay

I am using SCXI 1000DC with 1121 ,1160 modules .these are installed at server .from remote computer I am running my application built in Labview7.but there is small delay when i run application from remote computer,because the processing and diplaying in the remote computer The two computers are

Re: Need to output time

Yeah,I keep getting the same results, so I don't think it's the timer turning over. I worry that it might have to do with my buffered counting and the DMA channels. I have 3 DMA channels and all are being used in the counting. Could that somehow affect my counting? Thanks a lot. I'm a novice to

Re: Adjusting Bitmap color range

The easiest way to do that would be to use a picture ring and modify the bitmap image for all the stages that you would need and place them into the picture ring and update the ring for each case.

Re: Multiple Plots In Seperate Windows

ithats really similar to what I am doing its just that my main form sends data which is causing the flashing.=A0/i --- I would suggest putting the data into a separate global function (better than global variable for non-trivial amounts of data), and letting the slaves pull it out. At least

Adjusting Bitmap color range

Hello everyone I am currently using Labview ver 7.0. I currently have a bitmap picture of an AutoCAD drawing that I would like to edit programmatically. Basically I have some temperature sensors on my hardware and I would like to add a color range to a specific spot on my bitmap image. The way

How to create a PC self test in LabView?

I am evaluating the possibility of creating a PC self-test program in LabView. Is this possible?

Re: Digital I/O with multiple SCXI 1162 HV

Hello Randall, You can configure each SCXI-1162HV as a 32-bit port. This is cool because you can do a single read and acquire the status of all 32 lines. Since you have 4 SCXI-1162HV modules, you will need to configure each port and then you can read each port continuously in a while loop. If

Re: Adjusting Bitmap color range

does anyone know how I can actually make a color area I want to make the colors fade from one to another, the same way a meter does

Re: How to create a PC self test in LabView?

help us understand your question. Do you mean that you want it to check various things on start up (ie monitor pluged etc) or what type of self test are you talking about. Please be more specific

Re: OpenG Coding Challenge - Remove Backspace

Craig Graham wrote: Hmm. Just got round to my second approach and it also takes 20ms. However if I change it to subroutine it comes down to 8ms here. Have the posted results been normal priority or subroutine? Apparently the tests are being done reentrant, but not with the VIs set to

key navigation.

Dear LVers: I am sorry, my english is not so good. Anyway I will try once again. I can use the key navigation dialogue box, to choose keyboard shortcut that sets the key focus to control or that change the status in a boolean control. But I can choose only the nexts keyboards: home, page up, page

Re: How to create a PC self test in LabView?

Memory test, HDD, Buses, Clock, Ports,... after a PC is manufactured a final test.

Re: VI loading times-out for 50 seconds when another networked PC is shut down

I agree with Dennis. I also want to point out that mass compiling would solve the loading delay problem for all of your VIs.

Re: How to use a USB-to-parallel adapter to communicate with my switch device?

Hey kelvin, Did you see the link that I posted earlier? If not, you can read my response above and view the text at the following url: http://exchange.ni.com/servlet/ ProcessRequest?RHIVEID=101RPAGEID=135 HOID=5065000800438A UCATEGORY_0=_49_%24_6_UCATEGORY_S=0 If that doesn't address

Re: How can I communicate betwen parallel asynchronous VIs?

tmh, No, I'm pretty sure you understand perfectly, as that's exactly what I wanted to do. I knew that if you had two loops on a block diagram, they would execute in parallel, but I assumed that if you had a loop and a SubVI on a block diagram, that whichever one started executing first would

Re: Need to output time

I believe the buffered counting could be the problem. You might consider posting to the daq forum for help on this aspect of your code. Were you able to learn anything when you auto indexed your wires? I was thinking over lunch that the default values for numerics is zero and when you

Re: Digital I/O with multiple SCXI 1162 HV

Thankyou Bill for the answer. It will be a few days before I start this project but wanted to head off any problems I could prior to starting it. Will there be any need for semaphores or other synchronization methods to prevent collisions with these vi=92s at the driver level? Thanks again for

Re: Multiple Plots In Seperate Windows

I actually got mine working with out using occurances. What benefits would I get by using them? As of right now as can be observed in my code, I just having everything in a while loop. I imagine this is as ineffiecent as possible due to constant polling. Is this what occurances would

Re: dinamically reading load cell

1)=09Yes, you are right. It isn=92t undersampled really, but reviewing the block diagram in my improvised Write Loggin VI , I have found that the =93raw=94 signal was averaged too (300 samples) and I recorded it as is. This is an answer for your item 3} too. 2)=09Sync pulses have different

Combobox pausing operation of other VIs

Okay, I have a main VI which contains two paralell while loops. The first of which has 3 subVIs which contain a graph that upon user request get opened. Note the main VI does not pass any data to the subVIs. The other loop is what takes care of user events like a button being pressed and these

Re: Multiple Plots In Seperate Windows

i The way I have wrote it causes the windows to lose and gain focus as expected.=A0 Does anyone know how to stop the focus from constantly changing?=A0/ip The focus is changing because the execution is changing (in the same thread). You have the VI with the graph execute, and then quit. This will

Re: 500 cycles in a LV for loop, a c dll function can't open files anymore. why?

rtyu, If it is a memory leak, the task manager should show this behaviour just as Naresh suggested. Is the error generated for some specific file every time you run it ? Could you please send an example of a code which can reproduce the error. Arkadiusz Roszczewski National Instruments

Re: Excel collection variant

Dave, Your code is password protected, so I'm not able to review it. Even so, I tried implementing what you are doing on my own machine without success. I can neither read nor modify a DocumentProperties object. I can modify other visual basic objects, but not the documentProperties. My

Re: Print panel to selected printer

Steve, LabVIEW may not be populating your graph when you call the subVI. It's possible that you will have to open the front panel, print the graph, then close the front panel. This is particularly the case if you are using an older version of LabVIEW (pre-5.0). Knowledge Base (KB) 18FB2692

Re: saving and restoring,default controls values(LV7)

I can't explore yet, all Property Saver Toolkit features in deep, but I think that it is really GREAT !!! I get an easy and powerful solution to my requirement. Many Thanks.

Re: Multiple Plots In Seperate Windows

You have a rather hairy state machine going on (I looked at your code again). The difference I see is that you have ONE button which spawns window #1 or window #2 or window #3, depending on who's up already. But the logic to support that is part of the polling process of every loop. My app had

Re: How can I communicate betwen parallel asynchronous VIs?

and I guess I should come up with a new expression other than frustratingly lacking at times, since I used that one already...

Re: three way switch?

kohokoho; Check out the followings: a href=http://sine.ni.com/apps/we/niepd_web_display.DISPLAY_EPD4?p_guid=B123AE0CB97A111EE034080020E74861p_node=DZ52036p_submitted=Np_rank=p_answer=p_source=External;Using a 3-State (3D) Switch in LabVIEW /a a

Re: Pointer to Pointer from DLL

Marco Tedaldi [EMAIL PROTECTED] wrote: Now there is a Function to read and write the Contents of the EEProm on the Device. This DLL-Call wants a struct with some values in it. some DWords, some Booleans... no problem. But It also wants 4 pointers to strings. As the only possibility to

Re: Details on use of Device Control/Status.vi

Brooke Clarke [EMAIL PROTECTED] wrote: I'm writing an application where I need to be able to bit bang serial port output lines and check the status of serial port input lines in LV 5.1. In the vi.lib\instr\_sersup.llb folder there is the serial line control.vi and it uses two sub VIs to allow

Re: OpenG Coding Challenge - Remove Backspace

Craig Graham [EMAIL PROTECTED] wrote: Apparently the tests are being done reentrant, but not with the VIs set to subroutine. Both changes give the same doubling in performance- I assume from ditching debug and UI code internally. Does a similar speedup from ditching debug code occur naturally in

Re: Video capture cards, LV and Linux

Steven Hammer [EMAIL PROTECTED] wrote: Does anyone out there have any experience with a video capture card that can be used with LabVIEW (with IMAQ) and Linux? Any recommendations based on experience with any good cards? The main hassle (I'm sure - I'm a relative Linux newbie) will be setting

Running two copies of VI and seeing two FPs

Hi folks, I'm trying to get a VI set up so that it can have more than one open FP available at once. It's a log viewer and I'd like to be able to have two instances running side-by-side, with a different log file loaded into each one. Setting the VI to reentrant doesn't appear to be the complete

Re: OpenG Coding Challenge - Remove Backspace

Rolf Kalbermatter wrote: What speeds up things is, that for time critical or subroutine priority VIs, LabVIEW not only disables front panel updates (done anyway if the panel is not open), but even the code necessary to buffer the data for front panel display. A bitch to debug such a VI, (you

Re: dinamically reading load cell

I could only work from the data you supplied, so I looked at the graph. What you post, more often than not, determines who and how good the answer is. I still think that the damping of your measurement system will be critical to effective and accurate measurement as well. Check out the following

RE: OpenG Coding Challenge - Remove Backspace

Craig Graham [mailto:[EMAIL PROTECTED] wrote: Rolf Kalbermatter wrote: What speeds up things is, that for time critical or subroutine priority VIs, LabVIEW not only disables front panel updates (done anyway if the panel is not open), but even the code necessary to buffer the data for

Re: three way switch?

http://www.openg.org/tiki/tiki-index.php?page=3+Way+Switch

RE: Video capture cards, LV and Linux

Steven Hammer [mailto:[EMAIL PROTECTED] wrote: Curses. No IMAQ in LV for Linux. That aside, I can still think of a use for a video capture card that works in LV/IMAQ under Windows AND is useable with Linux (without LabVIEW or IMAQ). Any recommendations for a card that fits both

Re: LVM file special blocks

Dear Lucke, For more information and/or examples on how to use the Read LabVIEW Measurement File Express VI, please refer to the VI, Function How-To Help under the Help menu and search for Read LVM. You will learn more aboit the special blocks. Refer also to the LabVIEW Help for this Express

Re: unable to open resource files

Hello Marnix, The reason for this may be that the computer is not searching the correct directories when the application is called. To change this, you will need to specify the LabVIEW directory as one of the default directories to search. Make the following changes while logged on as root. Edit

Does anyone know if VI Analyzer Toolkit is included in the Full Labview 7.0 Package?

I have read that Analyzer Toolkit is a tool to improve your programm , and I would like to know if it is included in the Labview 7.0 that is composed by the followings CDs:Measurement Studio, Labview 7 Express, Toolset Sofware,, Device Drivers for Data Adquisition, Instrument Control..., Manuals,

Re: tab control manipulation

Just create a local of the tab control and write the index of the page you want to that local.

Re: Hola!!!Yesterday, I asked a question about serial port...

Dear Mads; I have put the Bytes at port inside the while loop, and surprise!!!it works, but in one vi it works properly, and in another vi it doesn=B4t work, and the programm is similar, so I am thinking that it depends on the command that I sent.So, I will see if I can find a solution!! Thank

Re: unable to open resource files

Hi Erik, thanks for the quick reply. I'm afraid it doesn't solve the problem though... I checked /etc/ld.so.conf, and the line you specify was already there. The directory it points to exists, liblvrt.so.6.1 is in it. Running ldconfig poses no problems either... What surprises me most is that the

Re: Why every GOOP Get Data to Modify is set as reentrant?

Hi Pawel, The reason for the Get Data Modify.vi to be reentrant is that if you for example have two parallel executing VI which both tries to access and lock the attributes of the same object, one will successfully lock the attributes and continue execution. The other VI will be forced to wait

Why every GOOP Get Data to Modify is set as reentrant?

Hello All I found out that in every GOOP programs like e.g. report generation the vi Get Data to Modify is set as reentrant. Can somebody explain to me why it is so? thanks Pawel

RE: OpenG Coding Challenge - Remove Backspace

Paul Brown wrote: The best way to estimate your speed is to run both the example and your vi on your machine. Multiply the ratio of these by the speed of the example on the official machine (1008.6 ms). This should give you a decent prediction of your official time, despite the differences in

LV and GOOP

Hello all I have recently become interested in looking into GOOP for LV (I have been doing quite a bit of C# lately). I tried going to NI and downloading the GOOP wizard etc... but the link doesn't work. I am currently downloading Open G Toolkit etc... which I think has started down this road. I

Re: UDP Package Size and Cycle Time

Hello Luca, Thank you very much for your detailed anwers. Unfortunately I am not able to open the UDPBuffer.vi. Whenever I try, there appears following message (sorry german installation): Resourcen nicht gefunden. Beim Laden des VIs 'udpbuffering[1].vi' ist ein Fehler aufgetreten. LabVIEW

Re: Does anyone know if VI Analyzer Toolkit is included in the Full Labview 7.0 Package?

If you have LabVIEW full Development System it contains Analyzer Toolkit. For more informations/service please call NI-Germany.

Re: To associate the value of a control like a value of a selector of a CASE Structure

The Case selector value can only be decided during edit mode. It can not be dynamic in execution. Joe

Re: LabVIEW and USB to 1-wire (DS2490)

Did you check your hardware driver? Try do download the current driver for your hardware.

New Version of LabView - cool beans

Looks like NI is finally taking on Java... I'll drink to that! http://www.ni.com/news/releases/april0401.htm - andrew

To associate the value of a control like a value of a selector of a CASE Structure

I need that the value of the selector of a CASE Structure is din=E1mic. To need to connect the value of the selector with a numeric Control

Re: VI Slow Down/performance

Normally introducing a sub-VI is trouble-free and as you say it's better to arrange the code that way. If the code is to be called repeatedly (thousands of times) and it all needs to finish as fast as possible the accumulated overhead introduced can get significant and you must skip the sub-VI.

Re: VI Slow Down/performance

Hi Glen, Could it be that you're updating indicators on the main VI panel through references in the sub-vi? I know LV does this automatically sometimes when you make a sub-vi out of an existing piece of code and as far as I know uses a lot of CPU time... Even still, 10 times slower is really a

Re: To associate the value of a control like a value of a selector of a CASE Structure

I'm not sure exactly what you mean. A case selector may be a Boolean, a string, an enum, or a number. You cannot dynamically add cases though so you would have to anticipate each possible value when you write the program. You can even specify a range. For example, if you have a numeric control

VXI libraries update

I'd want to upgrade some VIs from LabView version 4 to version 5.0.1, 6 and 7. When I open them, VXI VIs (VXIin.vi, VXIout.vi, ect) are recalled as VXIin_old.vi... and they don't work because LabView cannot find the code interface node (.lsb files) to load in these subVIs. Where could I find

Re: VI Slow Down/performance

Sorry, to see the differences in performance, set the speed switch to the left position. Then compare how quickly the X-axis increments. The one without the sub vi goes more than 10,000 points in a second. While the one with the sub vi does more like 1,000.

LV and GOOP

Hello all I have recently become interested in looking into GOOP for LV (I have been doing quite a bit of C# lately). I tried going to NI and downloading the GOOP wizard etc... but the link doesn't work. I am currently downloading Open G Toolkit etc... which I think has started down this road. I

Re: Trying to display histogram to look out for peaks but I am unable to do so.

Can you save and post your vi for earlier versions of LabView, say like 6.1?

Re: hide a subpanels border

I've had the same problem too. You cannot hide the subpanel borders with Labview 7 Evaluation or Full Development versions, only with the Professional version. However, you can of course Cheat ! The solution is to simply copy a subpanel with it's frame already hidden and paste it into your own

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