How can I use USB interface in Labview?

Hi.
Does labview allow to USB interface?
I have been seen allowing GPIB and RS232.
I'm beginer at Labview and wanna use USB interface for my target system and pc.
I wanna know how to labview interfaces from target system to pc.
And if Labview doesn't provide USB interface module, how can I use USB?
Is using a USB at Labview hard to beginer?
Plz, answer to my quetion.
sorry, my English is very poor.
thx for reading my article.

You can access devices connected to the USB port, but not in the same way as you would a GPIB or RS232 device. There are no USB drivers like there is VISA for GPIB or serial. Rather devices that plug into the USB appear to the systen as some sort of standard resource like a printer, disk drive or IO board. LabVIEW then interacts with these devices as it would any other device of the same type.Look at it this way, if you have a USB daq device you will access it through MAX the same as if it were a plugin card. Mike...
Certified Professional Instructor
Certified LabVIEW Architect
LabVIEW Champion
"... after all, He's not a tame lion..."
Be thinking ahead and mark your dance card for NI Week 2015 now: TS 6139 - Object Oriented First Steps

Similar Messages

How can i use activeX Control in labview?

how can i use activeX Control in labview?
please describe me step by step.
thanks.

Well..that was quite helpful..but now I'm encountering certain problems. I've attached the VI I've made.
I don't need sound at the moment so I dropped it. (Although I tried to play it..but all I could hear was a very annoying sound.) Secondly I don't want to display any date or time..so i dropped that property too.
Now when I run this Vi...the webcam turns on, the screen of videocapx pops up..then the webcam light goes off..and another pop up appears saying..labview is not responding..and i have to close it reluctantly.
I haven't placed the stop capture property in this vi. i checked it by placing it too..but that doesn't work.
I would like to notify that my actual task is to acquire image and then compare it with another one already present on my pc. I want you to please help me out..solve my first query then I'll proceed with the latter part.
Attachments:
activexvideocaps.vi ‏20 KB

How to use USB interface with LabVIEW Embedded for ARM

Hi everybody.
I am developing an application based on the "LabVIEW Embedded for
ARM". Now I am doing various tests using
the evaluation board 2300 (with NXP LPC2378), but soon I will
dedicate to program the micro used in my project (NXP
LPC2148).
During the tests, I have seen that "default" LabVIEW interface allows the use
of CAN, I2C and SPI interfaces of the micro. I want to know how can I also use the
USB interface that is on the micros -both LPC2148 and LPC2378- (pin USB_D + / D-, USB_UP_LED,
USB_CONNECT, VBUS).
Thanks in advance for your suggestions

@chueco85
If you've created an application in LabVIEW for ARM and you build it.
you can go to tools >> ARM Module >> Show Keil uVision
then go to he build options.
the hex file will be created when you do a build.
with flash magic :http://www.flashmagictool.com/
you can program your device.
Wouter.
"LabVIEW for ARM guru and bug destroyer"

How can I use USB camera with NI cRIO 9022, please see my strange problem.

Hi,
I would like to use a USB camera with NI cRIO 9022. I used the same USB camera with NI USB 6216 DAQ device and developed a VI(within a PROJECT and outside it). So, It is working fine with NI USB 6216 device when I use the Vision Assistant Express VI and gets detected in its Initialization Window. Please see JPEG File 3 where I get NO ERROR.
I am facing a problem when I want to use it with NI cRIO 9022. What exactly I am doing in this case is:
1) Create a NEW PROJECT
2) Add Targets and Devices(NI cRIO 9022)
3) Use the Scan Interface mode
4) Create a NEW VI under the cRIO 9022 device
5) Use a Timed Loop(Synchronized with Scan Engine) for continuous Data Acquisition and Sending from the Analog I/O modules.
6) Use the Vision Assistant available through the NI Vision Acquisition 2010 Module(I get STUCK HERE! The Express VI opens the Initialization Window, but I don't see the USB camera like in JPEG File 3)
I am facing difficulties with this HOST COMPUTER, cRIO implementation differences. On my host computer I have the software packages as shown in JPEG File 1, and on my cRIO 9022 as shown in JPEG File 2.
Can someone guide me how to overcome this and get the USB camera detected when I am using NI cRIO 9022?
NOTE: If this is a problem with software mismatches on HOST and NI cRIO 9022 device, please see JPEG Files 1 and 2 for available software and Host and cRIO 9022.
Thanks.
Amar.
Attachments:
Host Computer Image or Vision Acquisition Software Installed.JPG ‏91 KB
IMAQ and dx Modules Installed on my NI cRIO 9022 hardware(No NI Vision Acquisition 2010 SP1).JPG ‏82 KB
NI Vision Acquisition Express NO Error for NI cRIO 9022.JPG ‏48 KB

When you select My Computer, you are running the program on the PC. In this case, the camera works because it is connected to the PC. The scan engine doesn't work because it needs to run on the cRIO, not the PC.
When you create the program on the cRIO, you can use the scan engine because the program is on the cRIO. You can't use the camera because it is back on the PC, and can't be found on the cRIO.
The project is a wonderful tool, but it may be making the programming seem too simple. It may not be clear to you that by moving a program to a different location (PC or cRIO), it is running in an entirely different environment on a totally different machine, even though it is just a little further down in the project. You can't easily access the hardware on one machine while running the program on the other.
So the summary is: The camera is attached to the PC. The scan engine runs on the cRIO. Never the twain shall meet.
Bruce
Bruce Ammons
Ammons Engineering

How can i use multi threading in labview?

i want to run a Digital storage oscilloscope and an energ ratio meter simultaneously using labview. i am using GPIB interfacing and windows XP. how can i do this using multi threading. Bot the instruments shd run and give data at the same time.

You can't do this - at least not with a single GPIB board. It has nothing to do with threading or LabVIEW. There can only be one talker at a time over the bus. Depending on the instruments, you could probably set them up to take measurements simultaneously but you have to sequentially poll them to get the data.

How can i use JMSProducerStats interface

hello,
every application server implements the interfaces of javax.management.j2ee.statistics , how can i get the results of the methods given by those interfaces (such asJMSProducerStats ) on the runtime of the as.
Thank you.

You can access devices connected to the USB port, but not in the same way as you would a GPIB or RS232 device. There are no USB drivers like there is VISA for GPIB or serial. Rather devices that plug into the USB appear to the systen as some sort of standard resource like a printer, disk drive or IO board. LabVIEW then interacts with these devices as it would any other device of the same type.Look at it this way, if you have a USB daq device you will access it through MAX the same as if it were a plugin card. Mike...
Certified Professional Instructor
Certified LabVIEW Architect
LabVIEW Champion
"... after all, He's not a tame lion..."
Be thinking ahead and mark your dance card for NI Week 2015 now: TS 6139 - Object Oriented First Steps

How can I use local variable in LabVIEW-Action?

Hi All!
There is local variable (for example "MyVariable") in local scope of project. There is Action-step, created by LabVIEW. One of input terminals step is "Sequence Context".
How can I access to MyVariable by Sequence Context? Unbundle? It does't work.
Thank you.

On the TestStand palette there is a VI called TestStand - Get Property Value.vi. Use that. Attached is an image showing how to use it. The trick is making it produce the correct data type. Do that by right clicking on the VI and selecting Select Type. Then you can choose the type. I think in LV 2010 and TS 2010 it is a polymorphic VI and you can just change it. I wrote an example here for Chaz: http://forums.ni.com/t5/NI-TestStand/How-to-execute-two-steps-in-parallel/td-p/1449874
It's the second example that's attached.
Hope this helps,
jigg
CTA, CLA
teststandhelp.com
~Will work for kudos and/or BBQ~
Attachments:
AccessLocalVar.JPG ‏67 KB

How can i use NXT toolbox in labview?

Hi i am newbie in labview and trying to get Lego RFID communicate with labview.
But i couldnt get it done. because i could not understand how to connect each other toolboxes.
there is no describtions for newbie, but words what i cannt understand, like buffurs thing. T.T
attached file is the .vi file what i messed up and plus, somebody's RFID circuit which i can not use.
please save me.... T.T
Attachments:
RFID2_NXT.vi ‏37 KB

Please post to the Mindstorms board - http://forums.ni.com/t5/LabVIEW-for-LEGO-MINDSTORMS-and/bd-p/460
You can click on Options and request the moderator to move this.

Can I use USB 6008 with LabVIEW 6.1 RT?

Hi there,
I've been using LabVIEW 6.1 RT for my applications and so far I haven't felt the need to upgrade.
However, I decided to try the USB 6008 and I'm learning the hard way that this device will only work with NI-DAQmx and apparently not with the latest NI-DAQ 7.4.2 (legacy) In fact, I can't see the device in MAX 4.1
Is there any way I can use the USB 6008 with my 6.1 RT version of LabVIEW ? or should I send the thing back to NI ?
I will appreciate your guidance on this issue.
Thanks a lot,
at

Hi at -
Allisso is right. There is no way to use the USB-6008 with LV 6.1, because neither of its drivers (DAQmx and DAQmxBase) support that version of LV. You'll have to either upgrade to a current version of LV or work with another device. I recommend contacting your sales rep at NI for help.
David Staab, CLA
Staff Systems Engineer
National Instruments

How can i use modal analysis in labview and Sound and Vibration toolset in my structural studies.

I am working on structural analysis of buildings during earthqauke.I ahve NI 4472, labView, sound and vibration toolset.Now i also want to carry out Modal Analysis. Where can i find thisin NI software.

There are third party software packages that support modal analysis. These include IDEAS from MTS, Smart Office from m+p, and ME Scope. You can use LabVIEW to save a file or export the data directly via Active-X. If you have some specific functions that you would like to see implemented in LabVIEW, drop a note to one of our developers, Hui Shao or myselfat : [email protected] on what you would like to see.
Kurt Veggeberg, BDM Sound and Vibration.
[email protected]

How can I use the NI PXI-6508 with Lab View 7? what are the first steps to get started??How can I use the channels with lab view 7????

I have a 8 slot PXI system with 2 NI PXI 6508 and 1 DMM 4070 in it. I want to get started with programming the digital I/O cards (6508)! How can I use this cards with LabView 7?what is the best way to get started, or where can I get examples showing how to use the several channels?
Thanks!
Philipp

Philipp,
The best way to get started is to decide if you want to use traditional NI-DAQ or NI-DAQmx. Recently we released NI-DAQ 7.1 which provides NI-DAQmx support for the PXI-6508. In my opinion, NI-DAQmx is more efficient and much easier to use.
To get started with examples, simply launch LabVIEW and go to Help>>Find Examples. Then expand Hardware Input and Output>>DAQmx and select the appropriate digital group for your application. This should help get you started.
Please repost if you need addition assistance. Good luck with your application!

How can I communicate the instrumnet in labview using RS485 interface?

I am using NI USB RS485 to connect the instrument, but I donot have instrument driver,I have to use VISA write and read data. the connection and serial setting are correct, I used a software ModScan32 from win-tech, the communication works well. I want to use the labview as my platform, How can I use VISA? please give me any clue or sample code. the instrument has a Modbus commmunication protocol.ThankS!

Hi,
VISA allows you to send/receive string data to/from the instrument. Serial communication with RS-485 is just like RS-232, so any of the labVIEW examples on serial will work. For serial you basically need to use VISA Read and write, that's it.
If you need information on what to send, you can check out the modbus website (www.modbus.org) and the documentation for the device.
Hope this helps.
DiegoF
National Instruments.

How can I use a existing USB Driver in NI VISA 3.0

Hello,
we have an ftdi USB driver for our measurement device.
The FTD2XX.sys is registred in C:\WINNT\system32\drivers
Also I have a FTD2XX.dll and an FTD2XX.inf file.
But I don´t know how can I register them in NI LabView or VISA.
Have I to do a new *.inf file for VISA?
Thank you
Cedric

You can either use the manufacturer-supplied driver or NI-VISA to control your USB device but not both. If you have installed your device, each time you plug it in the FTD2XX.inf will associate your device with FTD2XX.sys. Then, you can use FTD2XX.dll to talk to your device using the call library function node. The DLL usually contains a whole bunch of useful functions that someone else already designed to talk to your device. This is the easier route and I would recommend it if you already have the DLL and the installed driver.
The second method would be to uninstall or disable the driver for your device and create an .inf file with NI-VISA Driver development wiazard. This .inf file will tell Windows to use VISA as your device driver. You will, however need the vendor and product ID of the device to use VISA as your driver. The details of this are outlined in the NI document "Using VISA 3.0 to control your USB device."
The drawback of this method is that VISA is just an API to talk to your device and you have to implement the communication protocol to talk to your device. This might take some time to do.
This is why I recommend the first method. Someone else already implemented the driver for your and you just have to use the functions from the dll to implement your application.
Hope this helps.

How can I use LabVIEW to send the equivalent of a CTRL D (in VT 100 format) out the serial port of my computer?

I am trying to write a vi that interfaces with a piece of OEM equipment that is set up to talk with a VT 100 terminal. I can't seem to locate the ASCII equivalent string (if there is such a thing) of a CTRL D. Is there a vi that emulates VT 100 commands?

If I recall, CTRL-D is EOF on most ASCII tables.
You'd probably have to use an escape sequence
or if you can use an unsigned 8-bit that might be
easier.
In article <[email protected]>, TLS
wrote:
> How can I use LabVIEW to send the equivalent of a CTRL D (in VT 100
> format) out the serial port of my computer?
>
> I am trying to write a vi that interfaces with a piece of OEM
> equipment that is set up to talk with a VT 100 terminal. I can't seem
> to locate the ASCII equivalent string (if there is such a thing) of a
> CTRL D. Is there a vi that emulates VT 100 commands?

How do we use if statement in labview?moreover can i use if statement inside for loop?

how do we use if statement in labview?moreover can i use if statement inside for loop?

The if statement in LabVIEW is the Case structure. You can find that on the Structures palette right next to the For Loop. If you're still on the same subject about terminating a for loop early, then what you do is enclose your functions inside the loop with a case statment and make one of the case's empty except for one or more constants that you might have to wire. Hopefully, the attached picture will explain what I mean. Also, as I mentioned in one of your other posts, I think this technique is not as good as using a while loop. The array in the attached example is the same size no matter what and you may have to handle stripping extra or invalid elements.
Attachments:
For_Loop_with_Case.jpg ‏21 KB

How can I use USB interface in Labview?

Similar Messages

Maybe you are looking for