Enumerate devices VirtualBench in LabVIEW

Similar Questions

• Enumerate devices OR and get information about the device C / C++

  Hello

  I use using NI_DAQmx.  How to find and enumerate devices OR and obtain information about each device listed in C / C++?

  I am implementing a dynamic configuration allowing to access hardware OR on our system.

  I need to get logical device names, for example "Dev1", and then find what device OR, for example NI 6008, is associated with each device name.

  Thank you.

  -Neil shore

  If you just read the device information while you use DAQmx properties to achieve what you need:

  To get the names of all the devices in your system:

  DAQmxGetSysDevNames

  To get the product to a given device number (each product has a number of unique product in accordance with the reference C DAQmx help, for example, the USB-6008 case is 0x717A):

  DAQmxGetDevProductNum

  If you need to actually define the names of devices or whatnot, you would then focus on the System Configuration API.  I've never really used this outside of LabVIEW, but the Readme indicates he has CVI supports so you might be able to make it work.

  Best regards

• Measuring frequency VirtualBench with LabView

  Hey guys,.

  I recently acquired a VirtualBench for testing through LabView. The test installation I want to do is very basic. Use a DC power supply to power a crystal as a device and the oscilloscope to measure the frequency of the device.

  By using the software application OR virtual bench, I had the installation works perfectly in less than 5 minutes.

  However, when I move the setting in Labview I don't know the correct VI so that I can output the frequency measured as an indicator of the façade.

  I installed the drivers for the virtual bench and can set the output to DC and retrieve a graph of the frequency, but like I said, I can't find a single VI included in the package that will give me the frequency as a measure as the application software OR virtual bench.

  I'm missing this VI right in front of me, or the VI for measuring frequency has not been created yet?

  I enclose two photographs. One is the application virtual bench doing exactly what I want. The second photo is of the VI more close than I thought to take care of my needs (read the OSM aka paid), but as you can see the only way out is an analog output, no measure included frequency.

  Thanks for any help!

  Best,
  Andy

  There is a dial tone measures Express VI.  Or you can extract a single signal.

  There are also many FFT analysis or spectrum of VI.

• Search for device drivers in LabView

  I try to install the device, via the Help menu of LabView drivers. I select the manufacturer and a key word, but I can't click ' search for > '. The button is grayed. What should I do to be able to click on this button?

  As far as I know all the drivers, you can download through this screen, you can also get NI.com directly:

  Driver search page

  It is a little less convenient that you must put yourself in the instr.lib folder and restart LabVIEW for them appears in the palettes, but it's better than no drivers at all.

• Connecting two devices myrio single labview VI

  Can a single labview VI tracks/controls two myrio peripheral at the same time? Or I should perform only a single device and do communicate wirelessly with each other?

  If you collect signals at a place with a myRIO and send the signal to an another myRIO somewhere else, what myRIO use yo signals control two motors. I understand?

  A simple solution is to have the myRIO signal collection write the signal to a shared variable, and have the myRIO control read the shared variable engine and the engine control. Two MyRIO will work asynchronously in this case. Are there special requirements for synchronization? Because it is quite difficult to more wireless sync.

• Operate devices cDAQ in Labview 8.0

  Can you run cDAQ features in Labview 8.0 using the latest version of DAQmx Labview 8.0-supported? I bought a cDAQ-9174 and some modules, but the included driver disk (DAQmx 9.5) is not supported in 8.0 LV. Is it possible to install drivers without installing DAQmx 9.5 so I can use the DAQ with DAQmx 8.X Wizard? Thank you.

  According to this list, the minimum version of LabVIEW for the 9174 is 8.2.1 and the minimum DAQmx version is 9.0.2. I expect the first of these two to be the main issue here.

• Is it possible to enumerate devices by PCI properties, HAVE / AO?

  I asked this in the CVI forum yesterday, but there are probably more people who know NIDAQmx here.

  Reason: I would like to program my application to use some HAVE and AO, he can find on a CompactDAQ chassis. It is the 4th update to this app in 20 years, and I would leave the possibility to change the hardware without having to recompile.

  So, I saw AQmxGetSystemInfoAttribute (DAQmx_Sys_DevNames) which gives me a list of connected devices of NOR.

  Great, I can analyze that.

  But then I wanted to know which ones is input analog and analog outputs.

  I first looked at DAQmxGetChanAttribute (task, channel, DAQmx_ChanType, & Type), but you must have already set the channels yourself... Needless.

  Then I looked at NISysCfgGetResourceIndexedProperty() but I don't see any property that lists the available channels and tell me if it is ME or AO.

  How is that possible? I forget some obvious function calls?

  Thank you

  Thank you, I finally found it by looking at the header file that these functions are not all in the Panel of the function:

  DAQmxGetSystemInfoAttribute (DAQmx_Sys_DevNames, Str, 255);

  cDAQ9184-19E4514, cDAQ9184-19E4514Mod1, cDAQ9184-19E4514Mod2

  For a list of devices. And then for each device:

  DAQmxGetDevAOPhysicalChans (channel, Str, 255);
  cDAQ9184-19E4514Mod1/ao0, cDAQ9184-19E4514Mod1/ao1, ao2-19E4514Mod1/cDAQ9184, cDAQ9184-19E4514Mod1/ao3

  DAQmxGetDevAIPhysicalChans (channel, Str, 255);

  AI0-19E4514Mod2/cDAQ9184, cDAQ9184-19E4514Mod2/ai1, ai2-19E4514Mod2/cDAQ9184, cDAQ9184-19E4514Mod2/ai3

• Can't control RS232 and GPIB devices simultaneously with labview.

  Hi all

  I have a thermostat that has a RS232 to my computer connection and a counter from the source which has a GPIB to my computer USB connection.

  I have screws that allow me to control each device separately. But when I did a VI to fight them together that I can communicate with the GPIB device, but not with the RS232 device. I think that the VISA GPIB and RS232 VISA having a problem to determine this.

  Do you know what I could try to fix this?

  Thanks for your help.

  
  

• Use VirtualBench API without LabVIEW. Example: Python, dll, etc.

  Hello

  I would like to know if there is a way to use the API VirtualBench without LabVIEW?

  As the use of python or something.

  Thank you

  We just released version 1.1 of VirtualBench that adds a C API and a bunch of other features, see http://forums.ni.com/t5/VirtualBench/Announcing-free-firmware-update-version-1-1-adds-SPI-and-I2C/td....  With whom you could use VirtualBench in your programming language of choice if you write the appropriate links.

• Basis of LabVIEW Development with Compact RIO device software

  Hello.  Currently, I have the LabVIEW Base development software package and have been using it with DAQ Compact devices for the acquisition of basic data.  I would now like to start integrating controls in my system, changing to RIO Compact for deterministic real-time features.  My question is that I would be able to build applications for the Compact RIO system using only the basis of LabVIEW Development package without updating immediately?  Maybe some features are not available for me, but could at least get a good start like that?

  A CompactRIO embedded time real operating system (RTOS) called VxWorks you need to target the deployment of LabVIEW code to the device. Classic LabVIEW screws you will have been written so far are built to target general purpose operating systems (GPO) such as windows.

  To create screws that are deployable to STSOp, you will need the real-time Module that is not included in the basis of LabVIEW. As a result, to take advantage of the embedded FPGA, you'll need to install the LabVIEW FPGA Module as well.

  As long as you have the FPGA modules and in real time, it seems to me that you should be able to control these devices with LabVIEW Base. Without these software components you will not be able to create an instance of the device target your LabVIEW project.

• generate the TTL signal for synchronization from another device with Labview

  Hi all

  I use NEITHER-6071E and try to generate and send a TTL signal so I can synchronize another device with my Labview code. My code (code attached) generates a sine wave, and I want to send a singal TTL out at an angle of phase on the sine wave. Currently, the code sends a sinusoidal signal and a square using similar wave output on BNC Plug. I thought I could just use a square wave, and send it out as analog output for the other device, but apprantly that he works with a TTL signal.

  Could you please take a look at my code and advice me how to generate a TTL signal while being able to send it to some phase shift?

  Thank you davance

  Pooya

  There is almost everything using examples > find examples... menu

  but here is one which simply sends a single impulse:

  

  Note that I expect the line have been pre-defined in MAX (it's always a good idea to check that your DIO line behaves as expected by trying it in MAX).

• Create a device simulado desde y MAX utilizarlo en LabVIEW

  Hola

  He has created a device (PCI-6221) desde MAX simulado.

  

  LabVIEW desde ahora y utilizando Assistant DAQ hago uso del device created, for example buy una Señal analogica para.

  ¿Hay alguna forma of simular device este desde LabVIEW Señal analogica adquiera y?

  Espero haberme well explained.

  MUCHAS Gracias

  Raul

  

  Hola Inmacu,

  Tal y como lo has hecho esta. Yo he terminado el codigo para as veas como quedaria you he hecho una captured. Por otra parte, so lo questions are if are you can buy una Señal real con una tarjeta simulada the answer are in Quebec no, las señales solo pueden ser simuladas. Piensa than than indicarle tienes a LabVIEW device fisico del cual leer el y been exist.

  A greeting.

  Jesus

• LabVIEW crashes when I add USB R Series devices

  Hello

  I see my USB 7855R of the MAX. But when I add the device to a LabVIEW project, it freezes and stops working. My system configuration is as below.

  Windows 7 64 bit

  LabVIEW 2013 SP1 f2(32bit)

  LabVIEW FPGA 13.0.1

  NEITHER RIO 14.0.1

  Does perform a work around for this issue?

  Best regards

  Joonam

  No, you cannot compile R USB series on a 32-bit computer. So, I used the compile the machine(64bit) another FPGA on the network server.

  On the other hand, I discovered that works well with the 2014 LabVIEW and LabVIEW FPGA 2014. However, this doesn't always work with LabVIEW 2013 SP1. Even examples of navigation of USB R series are not able to open.

• can I use labview 8.01 whit usb device 6009 with vista home

  can I use 6009 with labview 8.0 and Windows Vista home OS usb device?

  LabVIEW 8.2.1 is the first version that is compatible with Vista. While 8.0 could operate, NOR offer any guarantee.

• I have a problem with finding a PnP USB audio device when you search for available audio devices.

  Hello.

  I am building an application that can find a PnP USB audio device and play a tone if the device is connected. I am able to search audio devices using "Sound Device Info.vi" of the lvsound2.llb that comes with labview.

  The vi can find the USB device in good conditions, but there are problems - I'll try to describe 2 scenarios.

  1. the USB device is connected before 'Sound Device Info.vi' is called for the first time.

  In this case, the program can find the USB device. If I unplug it, the device disappears from the list of found audio devices. If I reconnect to the same USB port, it reappears in the list. It's all good.

  If I reconnect it however a new USB port, the device is not found. This is not good.

  2. the USB devices is not connected when 'Sound Device Info.vi' is called for the first time.

  "Sound Device Info.vi" is not able to find the device. Disconnect and reconnect does not make a difference.

  I'm under labview 2012 on windows 7.

  I am running the application as an exe to build.

  I call 'Sound Device Info.vi' as a 'call for reference"and the reference is closed between calls to the vi. I was hoping this would unload the dll used in "Sound Device Info.vi" and would solve the problem, but it didn't.

  Is there a way to reset the information usb labview during execution?

  Concerning

  Stephan.

  Hey Stephan.

  The sounds screws require a DLL located in:

  C:\Program Files (x 86) \National Instruments\LabVIEW 2012\resource\lvsound2.dll

  Internally, LabVIEW uses the DirectX API to enumerate devices. The one caveat is that probe us for devices when loading the DLL. We probe not later. So that it works for Bluetooth, USB, fire wire, etc. devices that can be inserted or removed at any time, you control somehow when this DLL charge and discharge. To do this, please see the following document:

  Dynamically that I can load and unload a DLL in LabVIEW?

  http://digital.NI.com/public.nsf/allkb/77594203D78D12278625729100758BE5

  I would also recommend that you provide a Kudo to this idea:

  Updated library lvsound2 (Sound Input/output Sound live) to support audio devices change on the fly

  http://forums.NI.com/T5/LabVIEW-idea-Exchange/update-the-lvsound2-library-sound-input-sound-output-V...