Caliing My Computer in LabVIEW

Hi,
By using ActiveX, i can use windows media player in LabVIEW. Is there any function in ActiveX or any other pallete which can be used to explore "My Computer "
By using LIST FILES vi, i can view the folders and files of a drive. But i want some other way
Somil Gautam
Think Weird
Solved!
Go to Solution.

I think this one is just for selecting some particular file.
See this vi which i have made.
First it will show the drives on your PC, then start entering the path of the drive you want to explore.
I wanted something like "MY COMPUTER" . Just by clicking he folder/file, we can explore.
Check this
Somil Gautam
Think Weird
Attachments:
Explore your computer.vi ‏31 KB

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How can i make the .exe run on the computer without Labview?

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You need to install the LabVIEW Runtime engine for your specific LabvIEW version.
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Why cant i see the opc servers on the computer where labview is running?

Hello,
i have 2 Computers in a network. On both computers is installed the NAPopc Server. On the computer where Labview is running, i can not
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Thanx, Daniel
Best reguards

Hi Daniel,
in your post you're saying that you have the "NAPopc-Server" installed. Did you mean the NI-OPC-Server? As you can see in the screenshot attached you should be able to see any registered OPC server that is registered properly, no matter if it's installed on your local host or elsewhere.
You mentioned that you can see the OPC server on the other computer, so you should be able to see the OPC-server on that machine when you choose the settings-tab and select "localhost" as machine. Is that right?
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Can I interface a normal DC motor with a computer using LabView?

I am trying to find a DC motor that can be interfaced with the computer using LabView. Is that possible? If so, HOW?

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In 1992 my lab purchased a Particle Size Analyzer (Microtrac series 9200) that came with a Compaq computer (DOS 5.0, Win3.1) and a printer. Due to proprietary software restrictions I currently need to keep the analyzer software operating on the DOS computer (to calculate the particle size distribution according to Microtrac's evaluation), although everything else about the system is out-dated. In fact the printer just died last week.
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In dos you can use the copy or print command. More about it here. http://www.computerhope.com/issues/ch000199.htm I have also used a memory stick on dos system. I have USB memstick driver. This works fine. However This will require that your host computer do have a USB port.
Most computers from that time do have one or more serial ports. If you have a free serial port I would have used this and hyperterm on the XP computer. In order to transfer the output file. But before you do this you must set the serial ports on both computers to the same setting. In DOS this is done with the mode coomand http://www.computerhope.com/modehlp.htm
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Issues in understanding parallel computing in Labview

In my data acquisistion project, I use case strructres in while loops to navigate through my entire project. Some of the while loops are:
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Labview Learner
Solved!
Go to Solution.

Ashaironix wrote:
basic question is will labview be able to handle running two case structures parallely within a same while loop.
Two different case structures? Yes. Two cases inside the same case structure? No.
From your description earlier, it sounds like you are having loops inside of your case structure. If that is the case, then you are blocking your loop with the case structure from being able to check for messages. Everything inside of a While loop must complete before it can iterate to run again. If you have a repetitive case to run, reenqueue that state so that you can check for messages and run again when it gets dequeued.
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Computer with labview runtime engine (v8.2) cannot find sub-VI NI_AALBase.lvlib:Mean.vi. What do I have to do?

I am trying to run an exectutable on a computer that has the labview v8.2 runtime engine. The error I am getting is: Cannot find sub-VI NI_AALBase.lvlib:Mean.vi. What is the easiest solution?

the matrix,
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Connecting Keithley 2100 DMM to computer with LabView

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Hi,
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Fast enough computer for LabView?

Hello, I would like to know if I have a fast enough computer for the
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Pentium 150 running Windows NT with 64MB of memory. I'm writing the
LabView program to contain 16 individual while loops for each ports of
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Thanks,
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I may be wrong about this, but most NI cards seem to use a single UART and
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Jaime Rios wrote:
>Hello, I would like to know if I have a fast enough computer for the>application
I'm developing. I have just ordered the PCI/232-16 Serial>Interface card
from National Instruments and plan to use it with a>Pentium 150 running Windows
NT with 64MB of memory. I'm writing the>LabView program to contain 16 individual
whi
le loops for each ports of>the interface card (that's 16 while loops,
just to let you know). I'll>be constantly writing and reading from the ports
and displaying the data>read by the port. If anyone can comment on what I
have so far, or can>say anything about how fast LabView code executes, I'd
greatly>appreciate it.>>Thanks,>Joe>

Computer running LabView loses time

Running LabView VI on HP Brio pc
Computer clock loses time non-linearly
e.g. after 24 hours lost 5 mins, after 36
lost 20mins. Time stamped log file is therefore wrong.
Happens with both Win95 or Win98 OS but worse on Win95.
The VI is reading data from instruments on serial port
and also a GPIB interface. Very slow
logging though (1 reading/min over many days).
Does this look like a hardware or software issue? Has anyone ever experienced this?
Help appreciated

Mine does too - and I can loose an hour in a day! I posted it on
a microsoft newsgroup and they explained that it was my problem,
my application was too cpu bound to service the time interupt
requests. There is no need to reset the time, just reboot. Windows
it seems only reads the time from the BIOS once at startup.
Call it a feature...?
I call it a bug!
"Mark Hanning-Lee" wrote in message news:[email protected]...
> GP wrote:
> >
> > Running LabView VI on HP Brio pc
> > Computer clock loses time non-linearly
> > e.g. after 24 hours lost 5 mins, after 36
> > lost 20mins. Time stamped log file is therefore wrong.
> > Happens with both Win95 or Win98 OS but worse on Win95.
> > The VI is reading data from instruments on serial port
> > and also a GPIB interface. Very slow
> > logging though (1 reading/min over many days).
> > Does this look like a hardware or software issue? Has anyone ever
> > experienced this?
>
> A general points:
>
> Win98 tends to be worse at this than other OS; not just a LabVIEW issue.
> My Win98 PC used to lose minutes per day; my Win2000 PC loses only a few
> ms per day.
>
> Make SURE that every loop in your code has a Wait or Wait until next ms
> Multiple. That frees the CPU.
>
> If a problem gets worse with time, see whether your memory usage is
> growing with time.
> If so, look for Build Array that is running in a loop, causing a large
> array to grow without limits.
>
> Also make sure there is a Close function for every Open.
> Make sure that you aren't opening & closing inside a loop; correct
> behavior is to Open before a loop, Read and/or Write inside the loop, &
> Close at the end.
> That's true for serial i/o, for VISA, and for GPIB.
>
> Lastly, if you are now using classic GPIB & serial functions, consider
> switching to VISA. Or vice versa!
>
> In general, you can keep the clock sync'd by running the free Dimension
> 4 software from www.thinkman.com . That sets the PC clock at regular
> intervals so it stays more or less on time.
> (But I'd be reluctant to do that when the program is running; might mess
> up loop timing.)
>
> Mark

Has anyone tried to use labview to measure tcp/ip throughput between 2 computer using labview?

I was wondering is LabVIEW can be used to measure throughput of the ethernet connection between 2 computers. Data in Mbps such as uplink and downlink on the connection.
Thanks

I've included a link to an article for determining the maximum TCP/IP transfer rate in LabVIEW. You can download the example that is included in the article. This example VI measures the communication from a real-time target to a host PC, so you'll need modify it for your application. Please let me know if you have anymore questions, thanks!
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How to connect 2 computer in LabVIEW?

Hi,
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Thanks
Ridhwan Ali
Solved!
Go to Solution.

Cool! I had a look at the examples and test it. It works.
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Thanks

On how many computer can i install labview student edition?

I intend to purchase labview student edition in a near future, and i was wondering on how many computer may i install it. All for personnal use. I currently have 2 desktop, and one laptop. But I will soon get a surface 2 pro and my laptop start to be old so I will also replace it soon, and I was wondering if I could get the student version work on all those.

If you are a student, you can get a renewable 6 month license for free here. no need to purchase anything.
As for the number of computers you can install it, you need to read the Software Agreement. Look for section G(1). The software can be installed on up to three computers but can be used only on a single computer at any given time. If you get a new computer, just deactivate on the computer to be retired and activate on the new computer.
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How can I run two independant LabView applications from the same computer, without taking a performance hit?

I have two identical, but independant test stations, both feeding data back to a Data Acquisition Computer running LabView 6.1. Everything is duplicated at the computer as well, with two E-series multifunction I/O cards (one for each test station) and two instances of the same LabView program for acquiring and analysing the data. The DAQ computer has a Celeron processor w/ 850Mhz clock and 512MB memory, and is running on Windows NT.
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Thanks in advance for any tips, hints and spoon feedings (!)....

Depending on your application, you may or may not be able to improve things.
Firstly, each task requires CPU time, so a certain performance difference is guaranteed. Making sure you have a "wait until ms" in every while loop helps in all but the most CPU intensive programs.
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Avoid also displaying data which doesn`t need to be displayed. An array indicator which only shows one element still needs a lot of processing time if the array itself is large.... Best is to set the indicator invisible if this is the case.
I think
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How do I install Shared Variable Engine on a computer not having Labview?

Hi,
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LabVIEW Champion . Do more with less code and in less time .

Caliing My Computer in LabVIEW

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