Re: Displacment value to be represented by up and down blinking arrows

Ian Thanks for that, didnt even know those property nodes existed. Works great, BUT the number that controls the direction needs to works that if the number is positive to the previous number it flashes down , and if the displacment is negative to the last number it goes up(Blinks) ,not relative

How to turn off the new LV7 error probe while debugging?

Hello All Every time I restart LV7 and want to place a probe on error wire it places the new fancy (i.e. not working properly) error probe. In order to place old fashion (i.e. working great) error probe I need to right click select custom probe and choose generic probe. Is there any way to make a

Three-PC network clock

Hello, I'm trying to put together a small system that does the following: Imagine 3 different rooms, where some event (a lecture in this case) has to start simultaneously, and last for exactly 20 minutes. Each room has a PC (and network). One of the PC's is the master. When the people in the other

Re: setting up position of front panel objects using input from file

Does the program run properly when you just press the run button instead of run continuously? I try to avoid using run continuously, even during development, and instead program my own run continuously with a button on the front panel which is monitored to determine when to put the program into

Re: Update from 2.0

Hi Robert, The Links that you put is broke, do you know another link to download the upgrade toolkit. Tx Frro

Re: State machine with login

If you want to use that data that you outputted in another vi yes you will have to create a connector on the left of a subvi and pass the data in. I would assume that you will have another mode that will view the data just like the example in the class correct? If that is the case all you will

File Permission Error (8) when trying to delete file

I am trying to programmatically delete (using the delete fx) a config(.ini) file that was originally created using the Open/Create/Replace fx. The file directory path is correct and the file is closed prior to the delete operation. I get a file permission error (8) when attempting the delete

Re: File Permission Error (8) when trying to delete file

Don, could you post the code so we could have a look at it? thanks Brandon

Re: In NI Spy why is there not a buffer tab for viReadAsync commands?

Hi, Thanks for the response. I am using Labview 6.0.2 and do understand the function and that it has a read buffer. Using the function in Labview returns the buffer data to the vi. This is not a problem. The problem is in NI Spy. When I go to view the properties for each call there are only

I must push the enter button to press OK with my One button dialog box

When I run teststand with a sequence, which call a One button dialog, the first validation must be made by the enter Press on the keyboard. With the mouse, it doesn't work? Are you an idea ?

Re: Hit any key

Hi. Thanks for the 'press any key sub, which is really helpful. However, I'm trying something slightly different. This VI waits until keypressed. But I have a rather large VI Running, and I want it to keep running until keypressed. So I want this VI to exit anyway, but with a boolean output key

adding plots to the current w/o changing color of them

I am scanning over a range for a couple of times and plotting one property and I am plotting simultaneously. for first run it's ok. but the real problem comes when it switches direction. Now I need to plot old data too so I am plotting old data and new data on the same plot. but I am not able to

How to get the name and status of the windows, programmatically?

Hi List I need to get the name of all the windows that are open. Also, I need to find out the status of the windows i.e. Which one of them is maximized or minimized? (This is NOT limited to Labview windows, any other window must be included) How can I find out which window is active? Any help

analog modem remote panel web publisch

Hi, I wrote a program in LabView 6.1, which runs under Windows NT to acquire temperatures. Since I'm using a lot of local variables and property nodes to make it user friendly, it became 6.3 MB. I allowed the web publishing and the remote panel modes. When the client is attached to the server over

Re: Labview GPIB connection.

Thanks. Ninskaya

RE: Detecting Lurking VIs (was Confounded and Ranting)

Paul, One solution, that works very well in this sort of situation, is to invoke the General (or Simple) Error Handler by reference. But, make sure not to open the reference (and thus load the VI into memory) until an error has actually occurred. Regards, -Jim -Original Message-

DOS comand.

Hello! Is it possible to execute a DOS comand from LabView. I mean, if I would need to execute copy (.txt file) lpt1, How could I do it? Daniel

Error Thread.cpp Line 1938

Hi, I keep getting this error when I run my executable. I am using Labview 6.1 on Windows XP. I followed the troubleshooting guide from NI website to disable the run in multithread and I am not calling any library(that I know of). My application does use the Database connectivity toolkit which

Re: Decorations - Draw a straight vertical line??

Actually, I had to turn OFF the alignment grid. When making a straight vertical (horizontal was ok) line, it would toggle back and forth around 0, but never let me get to zero. A modifier that turns off the grid (like pressing the control button while dragging, or whatever) would be nice! NI? :)

Re: File Permission Error (8) when trying to delete file

The code is a subsection to source code of over 100 mb llb for our ultrasonic scanner. I am trying to figure out a creative way to form a simple version of the problem but whenever I craft a basic VI utilizing the delete fx, the delete operation works just fine So as of yet I am not able to

Re: I must push the enter button to press OK with my One button dialog box

This is the regular message popup step type that you're using or is it a VI you've written? I've never experienced this in TestStand 2 and I use a lot of popups. Could you post an example sequence and if it's a custom VI, post the code for that?

Re: How do you access the properties of a decorations?

Actually, you can control multiple decorations in LV 7.0. The reference is an ARRAY of refs to the decorations, and they are indexed by front-to-back order. Did you get the invalid ref due to the array, not a single ref? Works for me.

RE: [A] Infinite continuous logging of 16 TV (A+V) channels

Thank you all who responded to my original email. I passed the info and obviously someone got wiser and re-defined the inquiry: Digital Video Recorder Input: 16 channels (A/V) / Multiplexer, Output: 1/4/9/16 simultaneously Video, 1 channel Audio Memory: HDD 320 GB Again I am not sure I

smart text read

I need to read from a text file that has over 2000 Two-Column entries. What I want is to have the user input a data number, i.e 150, and have a sub-vi search the file for that value and retrieve the associated column with that value. However, since it is a big file, there needs to be an optimized

Re: I must push the enter button to press OK with my One button dialog box

I'm not sure what's going on but I set the Load Option to Run Dynamically and the Unload Option to unload After Step Executes and that seemed to fix the problem. If I have more time, I'll try to experiment to see if there's a fix that doesn't cause a bit of a slow down in execution. You also might

Re: how to acces remote database using labview and db connectivity tools

Connecting to a remote database is exactly the same as connecting to a local one - you do it either through the ODBC Administrator (in the Control Panels) or by creating a Data Link file (*.udl). I prefer creating UDL files by going to the ToolsCreate Data Link dialog. In the Provider tab,

Re: Measure a Linear Scale Unit, with sine wave signal

Hi Luis, If your inputs are sine waves, you're probably best off using analog input, though if the voltages are correct, you might be able to use counters. The conversion from the voltage outputs to mm distance is dependent on the sensor, so you will have to look in its documentation or search

Calling DLLs from LabVIEW

Still somewhat on the subject of data formats, I am looking at the FITS library. I grabbed a dll from their web site and I am taking a crack at using that to write some sample FITS files. The C++ header is: int ffopen(fitsfile **fptr, const char *filename, int iomode, int *status) I am

C like structures in Labview

I'm programming a motor control application based off some C example code. In the C code there is a structure containing motor profile constants (max speed, slope, limit) and varibles (current_postion, status). I have created a cluster of numeric controls for the constants so I can easily pass

Re: red square border prevents continuous vi execution

The red square border is indeed a breakpoint. Just select the breakpoint tool and point to some blank space inside the diagram. If the cursor is an empty (not filled in) stop sign then there IS a breakpoint there. Just click and the red border should go away and the cursor change to a filled stop

Re: latest NIDAQ version for LabView 5.1 and AT-MIO-16DE-10

Hello eharley, The most recent NI-DAQ driver that supports LabVIEW 5.1 is 6.9.3. The free download can be found a href =http://digital.ni.com/softlib.nsf/websearch/50F49E43A22C0D2186256BF3006B9A96?opendocumentnode=132070_UShere/a. Have a nice day! Robert M Applications Engineer National

Re: Getting started - help with general concepts?

I have used both VB and Labview to do what you are asking. In my opinion, Labview is far easier to use and maintain. Non-programmer design engineers have picked up on my Labview programs quite easily for minor modifications. They could not have done so as easily with VB. Also, if you use

Re: Shared Library and DLL in C

Carl, Here are a few more suggestions/tips to try/look into. According to a href=3Dhttp://developer.apple.com/tools/xcode/Apple/a, XCode is the newer version of Project Builder, so you should be ok there, but it does require some configuration when switching from CodeWarrior (see bottom of the

Re: C like structures in Labview

You're correct that you can only have either Controls or Indicators in a cluster. You can operate on individual cluster elements regardless of which type (control or indicator) they are initially. Define your cluster with all the elements you need, pass this into your sub-vi and use either the

Re: oheapmgr.c line 60, I can't change blk dgm

Hello Gstan, Thank you for contacting National Instruments. I was able to open your VI in LabVIEW 5.1. It behaves as you described. Try holding down the shift key and right-clicking on the block diagram. This will bring up the tools palette. Select the arrow and you should now be able to

Re: an Analog Input Task with Multiple Measurement Types

Wwert, In order to measure multiple temperatures you can create a single DAQmx task and create virtual channels for each individual measurement. You can also create separate DAQmx tasks for each individual measurement, each with a single virtual channel, to further modularize the types of

Re: How to select NIDAQ traditional instead of NIDAQmx

I think I have a couple of answers for you. 1. Your 16E-4 might very well be supported by DAQmx. I know the PCI-MIO-16E-4 is supported. 2. To add the SCXI chassis under traditional you can right-click on Traditional NI-DAQ Devices and choose Add SCXI Chassis. Regards, Doug Norman

Re: ActiveX Events

Hello S=E9rgio, There is a wonderful example that does exactly what you are asking. In the NI Example Finder, look for the =93ActiveX Event Callback for IE.vi.=94 I=92m not sure what ActiveX application you are using (this one is for Internet Explorer), but the principles are the same. If this

how to clear Multi COlumn List box

I have aMulti COlumn List Box Indicator in my program. This list box is updated while my program is running. When i stop my Program and start it again with out closing the Window. The new data is appended to the old data. Is there any way to clear the existing data in the list box when I start my

Re: Anything in Labview like an MS GroupBox?

Thank you for the reply. This answer was what I was afraid of. If there are any NI engineers listening, then this is one of the things that iritates me about Labview, the fact that it doesn't incorporate the Windows Look and Feel at all. I realize that it is a cross platform product, but a simple

Re: Understanding the Pattern-Matching algorithm

Sean I'm using NI 1409 Frame grabber with LabView 6.1 and Vision 6.1 Pattern matching Vi's using the IMAQ Setup Match Pattern.Vi and IMAQ Match Pattern that uses LV_MatchPattern. So the Algorithm is NI's. I'm trying to figure out the reason that it sometimes can't find the pattern at all. As

problem with 'unbundle' function

hello, in another vi, i collect data (2 1-D array) that i bundle, i am also plotting this real time with XY graph - no problem about that. Now i'd like to plot (off-line) the data that i've recorded but i have problems to unbundle it (i am using the 'unbundled' function). does anybody has an idea

Re: How to turn off the new LV7 error probe while debugging?

Hi Pawel, I do not believe that there is a method for changing the default error probe. Once you make the selection of the generic probe, LabVIEW will default to that, but does not remember this when closed and restarted. I apologize for the inconvenience. If you have any more questions or

Re: With Labview what do I need to run vi's on computers without Labview installed

You need the 'Application builder' to create an EXE. See the 'Labview Player' information on this site as well.

Will Labview work with Windows 2000 Advanced Server

I have a computer with 12 Gbyte of RAM. I must use Windows 2000 Advanced Server in order to recognize at least 8G of the RAM. Will Labview work with this operating system?

Re: is it possible for the test equip. to tell me the measured data is ready?

That would depend upon the particular piece of test equipment. How are you talking to the instrument (IVI, PlugPlay, SCPI commands through LabVIEW VISA calls)? Look in whatever instrument documentation you have for status register information. You should be able to set it up so that a status

Re: Displacment value to be represented by up and down blinking arrows

As Russell has pointed out, you can modify the vi to suit your needs. Your creativity is now the factor :) Cheers!

Re: Integrate IMAQ Vision picture into frontpanel

Hi, Felix, I believe what you are asking is how to display images on a LabVIEW front panel. If you are using LabVIEW 7, there is now an embedded front panel control that you can use for image display. This control is found in the following location on the Controls Palette: Controls Vision

Re: Why does priority of NON RUNNING vi affects execution time of

--- This was our inferred explanation - good to have confirmation. I'm still not sure why a priority-switch is equated to a thread switch, though. It isn't obvious, is it. OSes add multitasking and priority execution by adding the abstract process and thread concepts. Threads and processes

Re: Displacment value to be represented by up and down blinking arrows

No , no , Patience is the factor here ,Plenty of creativity to go around. Back to the books and examples Thanks Brett Scott

Re: adding plots to the current w/o changing color of them

I am scanning over a range for a couple of times and plotting one property and I am plotting simultaneously. for first run it's ok. but the real problem comes when it switches direction. Now I need to plot old data too so I am plotting old data and new data on the same plot. but I am not able

Re: Anything in Labview like an MS GroupBox?

How about a simple GroupBox next time? There are lots of NI engineers on this list, including me. In fact, I was the head of the team that developed the UI controls for LabVIEW and developed a few of them myself. The groupbox that adapts to the platform, and draws like in the Windows

Re: Some way to easily find all the hidden *indicators* on the front panel?

ah ha, the problem I'm having is that the hidden indicators are on a tab page. how can i make these visible? thanks again...

Can I use active X buttons and dynamic events in a remote pannel?

I am using an active-X toolbar in my LabVIEW 7.0 application. A callback vi is used to trigger a dynamic value change event which is registered to a control on my front panel, (when a button on the toolbar is pressed, the callback vi picks it up and writes the button value to a value (signaling)

Re: i am gettign objheap.cpp error

I also keep getting internal Labview fatal error in objheap.cpp line 592 (labview 7.0). It started after I added couple of controls on the main.vi. Is there limitation on the number of controls on the Front panel ?

how to plot multiple channels in a single chart

HI My problem is basically offline analysis only.From the given data i have to plot the difference between any two channels.But i have to plot up to 8 differential signals as per users selection in a single graph.Somebody please give some idea how to do this.Thanks a lot.