Re: Plotting a second data into a chart

I have tested your modifications but i dont see the registered data of the analog input channel in the graph. The analog input channel is supposed to be registered continuously, but i dont see this data plotted in the graph. I think it measures a single point, but i dont see a dot in the graph. i

How can I display a specified y-constant line on a graph where the input variable is a spike graph?

I currently have a signal going into a graph which displays the value over time as a spike graph around zero. I want to add onto this graph a line which shows a limit that the signal should fall within at say +-10. ie a horizontal line added to the graph. Is there any way that I can do this.

Re: fixing size of control

thanks for reply.. it's working fine Thandal

displaying array of strings

I have an array of 3 strings and i want it to be displayed in the following format. how do i do this? Name Value% abc1231 def4562

Saving Arrays to one Array, Arrays zusammenfassen

--5115536.1084540059314.JavaMail.quiq.tekken Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Hallo, I have two arrays, f.e. 1 2 3 4 5 and 6 7 8 9 0, an I want to save them in one array like: 1 6 2 7 3 8 4 9 5 0 (two values in one line seperated by tab) The Build

Re: How can I cancel a runing program?

So how can I stop it? If Dan's suggestions for stopping it don't work, you might try other ways of opening it so that it doesn't start running. The VI is set to run when opened, but if you use the palette's VI... button to drop the subVI on a scratch VI, then double click it, it will not

Re: Graphs placed over indicators causing slow operation.

Dave, You wrote: ...human cognitive processing is generally believed to be limited to about 7 items... Curiously, crows have been reported as being able to count up to seven! If several hunters enter a blind and a few leave, the crows can tell if they've all left and it's safe to fly again,

DAQ counter output

I want to give out a counter signal on a PCI 6025 I tried to do this with DAQmx. I was able to realize such a signal, but thre is only the possibility (within the DAQ assistent) to give andless signal, or a adjustabke number of signal, or only one signal. My problem is, when I use the endless

Hi!!Does anyone know how can I programm a vi to launch Labview in Linux?

I want to build an aplication to launch Labview. But the problem is that I am working with Linux, so I can't use Active X to do that. How can I do it? Is there VI server in Labview for Linux? and if is there Vi server, how can I use this, to launch Labview? Thanks!! Graci

Re: timeout error when reading from visa (c

That read error means that there's no data to be read at the serial port. The cause of that is probably because the instrument did not receive a valid command. Why it didn't could be because of any number of reasons. Is the baud rate, parity, data bits, correct? Is the cable correct? Are you

Using synchronisation functions.

Can you explain me how to use synchronisation functions in LabVIEW 7.0 ? With examples if possible ... Thanks

why does

Import CVI Instrument Driver menu selection generate a LLB that has VIs which have not been generated correctly when a VI function parameter returns a ViSession pointer. The only one generated correctly was initialize, however, autoConnectToFirst was not. They both have similar prototypes in the

Import CVI Instrument Driver doesnt work when parameter is viSession pointer

Why does Import CVI Instrument Driver menu selection generate a LLB that has VIs which have not been generated correctly when a VI function parameter returns a ViSession pointer. The only one generated correctly was initialize, however, autoConnectToFirst was not. They both have similar prototypes

Re: Saving Arrays to one Array, Arrays zusammenfassen

--6962399.1084543713436.JavaMail.quiq.tekken Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Thanks Dave, it works ALMOST. Look into the output file. Arno --6962399.1084543713436.JavaMail.quiq.tekken Content-Type: text/plain; name=substract_ausgabe.txt

Re: send serial command in decimal format

Have you tried sending the string with the decimal data and appending a CR? Typically if an instrument expects a space between two numbers, the numbers are sent as ASCII numbers (i.e., in string format). Is the instrument you are communicating with similar to those NI has instrument drivers for

pwm in closed loop

I have a switch mode Power Supply that has two modules. I would like to be able to test the modules separately. One module is the power converter section and the other is the pwm control section. My question is can I control the power converter module using Labview and a 6020E series Daq Card

Re: Using synchronisation functions.

This question is way too open-ended for a concise answer here. You need to do a little research and learing by using the NI Example Finder and looking around NI.com for examples. LabVIEW help is also very useful. Dave.

RE: Re Corporate PC purchases for factory test, your experiences please

I have had the same problem lately, exactly as you described. 1.-I also think IT is dreaming, but we have to have the problem in perspective, most of the IT managers have come from administrative /or small companies where rarely there is a need to them to manage and handle an PC for testing, most

Re: Write in buffer with DAQmx

First of all, the card doesn't output current. It outputs voltage. I don't have the specs handy so for max current output, you'll have to look them up and see if the board meets your needs. If it does, and if you have a know load, you can convert the current you need to a voltage specification

Re: Any support VIs for FireWire interface

Hi GunnerStat, Below are a few documents that discuss LabVIEW and Firewire: a href=http://digital.ni.com/public.nsf/websearch/42B604435E3F9604862565E20043CD30?OpenDocument; Can I Use Third-Party USB or IEEE 1394 (FireWire) Devices with LabVIEW or LabWindows/CVI?/a a

Re: problem with system exec.vi and windows XP pro (again!)

Thanks a lot, guillaume.

Re: Continuous Waveform 1Hz

Thanks. I think I figured that out but I appreciate your response. One more question...I need to also acquire my analog inputs (8 of them) simultaneously while outputting my waveforms. I'm still working on trying to get one thing to use DMA and another interrupts using the DAQmx stuff. Any help

Re: Number to binary

Hi Nick, You might need to explain what you are trying to do a little more clearly. Are you trying to send 8 bit numbers between 0 and 255 (unsigned 8-bit integers) or are you trying to send 32 bit real numbers (singles)? For the first option, all you need to do is wire the

How to properly initialize the graph?

I would always be confused with initializing the graph indicator. I know I could use the property node and pool down all the parameters and assign the values to them but somehow those values don't dictate the way the graph gets initilized. Is it that autoscale options overwrite it? I tried taking

Re: Labview 7 and USB control

Jeff, Good luck in your attempts. Remember that the first step is just to get the device to be recognized as a standard parallel port by your computer, then VISA should see it just fine. Post here or start a new thread in Discussion Forums if you need more assistance. Scott B. Applications

Re: windows media player 9 labview 7

Dave, This is a known issue with the compatibility between Windows Media Player 9 and LabVIEW 6.1, 7.0, and 7.1. When you play a movie file with WMP9, the video portion of it does not show up in the Media Player display. Microsoft has changed the version of the Windows Media Software Development

Re: How can I detect if LabVIEW is the active (frontmost) Windows application?

That can work, but in my application I have nearly 800 VIs in memory, so opening a reference to all of them and checking the property for each one over and over is quite inefficient.

Re: Take windows screen shot and output to file

I didn't find that page that has the VI. But here is a document that allows you to save a front panel window as a picture: a href=http://pong.ni.com/public.nsf/websearch/942DAA35C7B35616862565FE005F713F?OpenDocument;How Can I Programmatically Save a Front Panel Image as an Image File?/a I hope

Re: multiple plotting but not with static inputs but using a control

Hey Tanisha, The reason that the VI is only displaying one graph is because you are giving it a one dimensional array of coordinates. If you look at the shipping example XY Graph.vi, you can see the valid types for making an XY Graph. If you want multiple plots, I would suggest using an array

Re: How to show only 10 channels at a time in a Chart

I dont think you can have different colors on the built-in plot legend. But sure, you could read the PLOT COLOR for each plot, then set the TEXT COLOR in each element of the array to the corresponding color.

Re: What do the labview installers put onto Windows operating system

The VI's installers could install runtime versions of LabVIEW - with different options. Some may be just basic, others may have the 3-D graphs, etc. If these computers do not have full LabVIEW development systems on them, then they need the runtime libraries. They could be confused. I don't

How do i use the peak detection vi in labview when designing...

How do i use the peak detection vi in labview when designing a plugin for Datex S5Collect that calls this Labview plugin every 500ms? ie. how to do realtime peak detection when the data is flowing into my plugin VI in realtime? the plugin doesnt show up in S5Collect when i add the peak detection

Re: VISA Write Timeout

Have you tried wiring the error out from the VISA Write to a Case Statement where the case Error causes a Break at Serial Port.vi and where the No Error cases simply wires through? The idea is to send a break to the serial port and hopefully recover without having to close LV in order to regain

Re: Conversions dots on cluster wires-- any quick way to tell which element it is?

Good idea, I'll use that technique.

Re: pwm in closed loop

The PWM function should work fine. Check out the DAQ examples for counter timer PWM functions. The second part of the question is closed loop control. How fast do you need to close the loop? How accurate does the loop need to be? 6020 Certainly you can close the loop at low rates (10 Hz for

Re: Labview 7 and USB control

Thank you for the help. Jeff ScottieB wrote: Jeff, Good luck in your attempts. Remember that the first step is just to get the device to be recognized as a standard parallel port by your computer, then VISA should see it just fine. Post here or start a new thread in Discussion Forums if

Re: How to properly initialize the graph?

Thanks for your help. Now I am sure about these things. Another thing I wanted to clear out is about clearing the graph at the initialization stage. I assigned the constant 0 to it and it clears but then something still sort of remains from the previous stage and it shows up on the graph right

RE: Subject: DOS window

Nuno, I recommend using the redirect command to send the output of the DOS program to a text file. Syntax is procmd my_output.txt. Then use simple fileio to parse your results. If you need to send keystrokes, that gets more complicated. Search the archives! Dave Hoadley. V I

graph

J ai fichier tableur comme ci dessous EssaiValeur 1 10 2 20 3 30 1 40 2 50 3 60 .. ... Je voudrais a partir d une commande trac=E9 un graphe en fonction du num=E9ro d 'essai, comment faire? merci pour votre aide

Re: windows media player 9 labview 7

I tried yours and the same thing happens. What version of LV are you running?

extfunc.cpp

Fatal Internal Error : extfunc.cpp line 1623. What does this mean? LV 7.0.

Re: How to properly initialize the graph?

You attached the wrong VI... I think I know what you mean. Thanks for your time. Have a good weekend, Pedja

Why do some older instruments require waits between writes?

This is something that I have wondered about. Often when using older instruments with newer computers it is necessary to slow down the writing of instrument specific commands (ie set freq, get number of points). Writing two commands too closely in time causes the test instrument to lock up or

Re: Send path control or reference to path control to sub vi

Thomas Json [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED]... Hello! I have a question of how to build correct labview structure. I have a path control in my main vi and want to check if it is correct in a sub vi. If not correct, ask the user for a correct one in the sub vi. I see

Re: create all combinations elements 1D array of cluster of arrays

I believe that I have a decent solution as well. I posted a similar question, and have promised to post my code when I have time to finish it. Let me know if this paraphrase of you problem is correct? You have a number of independent variables such as frequency, amplitude, etc (think of each

Thermotron SM16C with a 2300 controller

Title: Message Has anyone developed a LV instrument driver for the Thermotron SM16C with a 2300 controller? I noticed that there are only IVI drivers on their web site and for newer models only. Jeff Christensen IPCore GatewaysMotorola, Broadband Communications Sector [EMAIL

RE: ActiveX server in Labview

What you ask is possible. I've done this before with some success but in the end I decided to go with a LabVIEW DLL. The DLL had function calls that performed actions on my LV executable. If you prefer activeX then here is a good example to help you get a kickstart. It contains everything you

Renaming vi's in llb

Is there any way to rename the vi's in a library and have all the callers of the vi updated automatically? I have a library with lots of vi's in it that were named rather haphazardly (by me). I'd like to rationalize the naming, but I don't know how, other than to Save As, and then delete the