Similar Questions

• Imaging multi channels using the acquisition card OR

  We have a 1408 IMAQ being controlled by LabVIEW 8.0.

  We want to install multi-channel of imagery. All the channels work individually. However, when I was trying to show two channels simultaneously, single channel works and I got the following error message:

  Error 1074397150 has occurred to IMAQ enter Setup.vi

  Possible reasons:

  NOR-IMAQ: A timeout error occurred while you wait for the specified event. If you expect a picture, make sure all the video data is acquired during the period. If you wait for a signal, check that the assertion of signal occurs within the period.

  Sometimes I get a different error message asking me to assign different buffers to both channels. I understand that IMAQ 1408 has only analog digital (ADC) converter to digitize the incoming video. It may acquire up to four different cameras, but only of a camera at a time.

  I don't mind do frame rate in half. I think to show only one channel at a time and do the two channels alternantly. But I need to know how config routes to get there.

  I've attached an example that should work.  I could not test it because I don't have the equipment, so it might need some settings.  I would test it with one channel by setting the channel # 1.  Once it works, define channels # 2.  I set the display to use snapshot mode so the same image can be used for all screens.

  The only reason that I can think of that would make multi-channel acquisition fail when single channel works is the lack of synchronization between signals.  The start of frame signal must be the same for all channels.

  Bruce

• Multi-channel acquisition - simultaneous Acquisition of sampling 1 & 2-channel single sample in a task

  I am able to get a multichannel simultaneous sampling on my acquisition of data (USB-6363) without problem. But what I want to do is make multi-channel acquisition in a single task where sampling requirements are different for each channel. For example, I want I want to acquire a total of 1000 samples on 3 channels in a single task with DAQmx as follows the characteristics of sample:

  • AI0: Analog Wfm 1Chan NSamp (998 samples)
  • AI1 + ai2: 1 d analog NChan DBL 1Samp (1 + 1 sample/channel)

  I know I could do just a regular multiple sampling multi-channel acquisition through all three channels then average down from channels 1 + 2, but I don't have that several samples to spare. AI0 is a bandwidth hog in my application and consumes all the samples of data acquisition (2. MECH / s), but I can save a few samples to make analog measurements further (for example, temperature, pressure).

  Ai0 takes place also permanently so additional analog measures on ai1 + ai2 need to be included in the same task.

  I don't know how to go on this matter or if it is still possible. Any ideas or thoughts would be greatly appreciated.

  Currently I use a second DAQ to read these additional channels at a lower rate but I need to pass a single data acquisition.

  How should continuous ai0 really be?  You of course can enjoy on ai0, and one of the other entries at the same time, then there would be some gap in your data.  In addition, if you want to go to the full 2 MHz, you may sample ai1 ai2 twice in order to allow entry to set (the maximum specified multi-channel rate is only 1 MHz due to compaction of the constraints on the MUX I believe).

  DAQmx sort of you lets set something up like that, if you "cheat" it by configuring each sample as a single channel in your task (see an example similar here).  If your 998 + 1 + 1 (or 996 + 2 + 2) becomes a task of channel 1000 (takes a bit more memory, but should still be feasible).

  I would consider a 2nd DAQ card a better option if ai0 really needs to be continuous.  You can go with a (9174 or 9178) cDAQ chassis a 9223 (only 1 MHz if) for quick entry and your choice of module for the slower entries.  On the cDAQ chassis a module can run a separate task of AI from other modules (up to 3 tasks HAVE by chassis) at different speeds.

  Best regards

• AI trigger and measure multi channels

  Hi all

  I have a simple problem (using USB-6259).

  can repeat the measurement trigger of AI and measure multi channels, but not both at the same time.

  -DAQmxCreateAIVoltageChan(hd, "DEV1/ai0",...)                    define the ai0 as the trigger channel

  -DAQmxCfgSampClkTiming

  -DAQmxCfgAnlgEdgeRefTrig

  -DAQmxStartTask

  -DAQmxReadAnalogF64 (hd, "DEV / ai0:3 ', / / I want to measure more channels"ai0:3"not just"ai0")

  Thank you

  Hassan

  Hi Hassan,.

  If you use an analog trigger with several analog channels, you will need to use the APFI0 input as source of relaxation. See this KB: Why do I get error-200264 when running analog reference trigger? All you need to do is to connect your analog signal online 0 to APFI0 (Paperback 20 in your case) and set the source of relaxation at APFI0.

  The reason is that you don't have that an NOC on Board (series E or M) and she's going to have to switch between the different lines (see this KB: modes of sampling). This parameter collides with the idea of a trigger analog reference on a specific line (constant sampling of data in a ring buffer up to what a condition is met). The APFI0 line, however, has its own CDA. Therefore, it can run simultaneously.

  However, please note that the ADC is fast but has lower resolution to HAVE it sampling ADC. See these KBs: series E and M series Analog Input Trigger resolution, be aware of a possible error between the analog trigger threshold and the value of the first sample

  Hope this clarified the issue.

  Best regards

  Peter

• Control with Labview instead of MAX PCI-1422

  Hello Experts,

  I need your help in one of my problem. I have a camera of sensors unlimited that is SU - 640 1.7 RT - D and a card parallel NI PCI-1422. I can use and acquire data with power MAXI of the camera, but I want to exploit, use and acquire images from the camera by using LabView. Is it possible to export or using the camera with Labview instead to write fresh code in LabView?

  LabView offers it all support or bed automatically PCI-1422 or any possible solution that I get the code for the use of this device block diagram in LabView.

  Please let me know, answer.

  For any help or suggestion will be highly appreciated.

  Thanks in advance!

  Hi David,

  You can use the function IMAQ write file to record the images to the disc. Please see the link for an example below.

  IMAQ writing file 2 VI

  http://zone.NI.com/reference/en-XX/help/370281M-01/imaqvision/imaq_write_file_2/#IMAQWriteJPEGFile2

  IMAQdx enter and save individual files

  https://decibel.NI.com/content/docs/doc-19537

• How can I get multi channel audio via the HDMI port on an early 2015 MacBook Pro?

  I try to get the 7.1 audio channels to flow from my MacBook Pro to a cinema set up. The display works fine now I plug the HDMI in however the sound still Mac speakers. I checked the settings and no HDMI output is available. An airtime option is available, but that returns only two channels as a maximum to the receiver. When I go to the configuration of the source on the receiver it receives video at 1080 p 60herts however it is specifically stated No Audio from the Source.

  Also, I have connected my iPhone 6 s more using an Apple through the same HDMI cable adapter and it works perfectly. We also use HDMI with our PS4 occasionally and it works perfectly, even with the 3D.

  Thus, the MacBook Pro is early 2015 with an i5, the receiver is a Harmon Kardon AVR 2700 (we run 7.1 channels of this) and we are connecting via the HDMI port through a 50 ft HDMI before. The receiver sends the audio to a projector with 1080 p 60 hertz if it changes anything...

  Also if it helps the receiver supports dts - hd master audio decoding, Dolby True HD/Digital Plus decoding, HDMI 1.4 (HDMI is compatible 2.0), as well as multi-channel input and PCM and linear PCM.

  I use a "Behringer UCA202' audio device I bought on amazon.com for only $29.

  It works very well for the audio 5.1 or 7.2. Works connect optical toslink. Just plug it into a usb port on your Mac and a cable optical toslink to your AV receiver.

  My Yahmaha 7.2 audio/video receiver is measuring process the digital signal in THX, DTS, Dolby digital Pro logic, a cinema, etc.

  

• Question: BDP-S570 or BX57 internet multi-channel flow?

  Hi all, I noticed recently that when I listen to the audio or video content on the network as my BDP-S570 diffuse now as a multichannel surround sound instead of the 2 stereo channels.
  I don't know if this is caused by the latest firmware I installed or changed content providers (or the Sony Server site) in a recent past a few days to send their audio in 5.1 multichannel, now. Or finally if my BDP-S570 went buggy and it's stuck in the PCM multi-channel streaming mode.
  It broadcasts my network all music and video internet connections in multichannel sound, even if I put the BDP-S570 "Downmix" mode setting of stereo 2 channels. I swear before I made this latest firmware update, I always had that 2-channel stereo audio from the internet network connections.
  So I need to know and ask if someone else becomes sound mode of 5.1 channels of their Internet stream?

  Update: too bad people, I found my answer. The cause of constantly multichannel PCM streaming of all my network connections was because I had the BDP-S570 DTS parameter defined on ' Neo: 6 Music ' instead of 'Off' in the settings menu. I set this to "off" and all the music from the internet is now back to regular 2-channel flows. for info. case solved.

  I'm glad that you managed to fix the problem yourself. If you have additional questions, please let us know and we will be happy to help you.

• Cannot create the multi channels Tx two USRP-2943Rs Session with driver

  I have problems of implementation of several USRP-2943R devices in tranmist both of their channels at once.  Right now my configuration is a configuration of four chains composed of two devices of RIO.  I am only able to transmit at the same time successfully CH0 and CH1.  I'm creating a session using two devices and my aim is to perform Tx on CH0 via CH3.  In addition, my goal is to use the LabVIEW driver without any synchronization, because I test fix synchronization through post-processing and you want the VI be as simple as possible without the hassle of FPGA programming. I realize has the Simple models OR - USRP Streaming Sync in LabVIEW, but additional synchronization and FPGA programming is too much for such a simple project like mine which would require no synchronization USRP.

  My VI and some screenshots of the error messages resulting is attached.  I am able to succesfully implement multi-channel Rx deals and attached is my multichannel Rx VI.  My question is why I can open and operate a session of Rx mult-channel without problem, while a multi-channel Tx session will give me errors?

  My final goal is to merge my multichannel work Rx VI with a mult-channel Tx VI work for measurements in order to test some synchronization post-processing routines that are performed in Matlab.

  I think that I found a solution to my problem.  I thought to post it here to help others.  It is important to use some sort of device to synchronize several USRPs.  However. I found that you must reset the device by setting the node of reset function blocks that open and session Rx or Tx.  "" If it is not defined, then the ' niUSRP Signal.vi configurethe ID of the specified attribute is not valid for the scope specified (or channel)." error occurs, any circuits that you define.  After the node Reset true and place an empty string for my channels Enabled, all was fine.  Also, a full duplex system you will be only to first log of Rx with a reset of the device, followed by the opening of a session of Tx without a reset of the device.

  One more thing, it is that there seems to be a bug if you feed a Tx process a table whose number of lines does not match the number of channels Tx.  This will result in weird errors funny will disappear only after doing a hard reset of the units.  So, just something to take note of.

  I hope this information will help others and this message can be marked as resolved.

• How to acquire data from both channels on a PCI-5922 (OR scope)?

  I'm fairly new to LabView (version 8.5.1) and I'm working on my first vi non-teaching.  I need to acquire analog of the two channels of a PCI-5922 data.  I made a single channel using NEITHER brought Express, but you can use NOR carried Express to both channels.  I tried two instances and that left me with a free entries or exits, I also tried to allow the two entries, but I get only one exit.  I think that I don't have my head in the right place with this.  Sorry if this is very basic.

  Thank you... Steve

  Take one of the LabVIEW base tutorials.

  Simply use the Signal from Split. Of course, it's always this evil dynamic data.

• PCI-6025E (DAQ) and cards-1409 (Image Interface) PCI

  Hi friends,

  I have PCI-6025E (DAQ) and cards-1409 (Image Interface) PCI installed on the Windows XP desktop, that connected to the deducted Mikron camera.

  Recently I spend my Labview to 8.6, but the Mikron camera installation software does not work.

  How can I solve the problem?

  Anyone have the installation software (PCI-6025E (DAQ) and cards-1409 (Image Interface) PCI)?

  Any suggestion is appreciated.

  Thank you

  Jack

  jackp6,

  For the 6205E you will need to download an install the Drivers OR-DAQmx which you can find here:

  NOR-DAQmx

  http://Joule.NI.com/nidu/CDs/view/p/ID/2214/lang/en

  The 1409, you must NEITHER IMAQ drivers that are included in the following the Acquisition of vision available here:

  NEITHER Vision Acquisition Software 2,010.08

  http://Joule.NI.com/nidu/CDs/view/p/ID/2137/lang/en

  Please let us know if you have any other questions.

  Kind regards

  Sam K

  Technical sales engineer

  National systems

• Cannot get DTS/multi channel audio via HDMI

  Hello
  I'm trying to connect my VAIO SVT15112CXS to my Bravia HDTV via HDMI to get multi-channel audio (DTS/DD) from my Bravia HT (connected to the TV via optical) with no luck at all.

  I have the same setup for PS3 works well, is it cable or equipment.

  I have already updated all the drivers.

  When the TV is not connected I don't get an Audio HDMI option in the playback devices (I checked to show disconnected devices / disabled) and when it is connected I do not get an option to change the configuration of stereo speaker.

  This way I get only Stereo sound.

  I tried passthough HDMI via ffdshow config (installed K-Lite codec pack) and there is no sound in this way.

  Is there a solution? something escapes me?

  Thanks to all in advance,

  Thanks for your time and your response.

  I got it actually work! updated drivers audio and video (not Sony ones sugested, but later of Intel and Realtek) and now I have everything works as it should.

  The only minor problem is that Vaio Care now wants me to go back to the previous version of the driver, but I'll just ignore it.

  Everyone, try this if you experience this problem.

• PCI-1422 and RS 232 control of a camera Hamamatsu ORCA-HR (HR C4742-95-12)

  Hello

  I'll have some incompatible problems when I try to control a camera Orca-HR (Hamamatsu C4742-95-12 HR) via RS232.

  I have a feeling that the problem comes from how the RS232 port emmbedded (emulated?) in the PCI-1422 is used or recognized by the various software that I've tested.

  So first, this port emulated/integrated should appear in the series, Max & list parallel port? I don't think, but he's not here, that's for sure. I have 'only' the projection of card PCI-1422.

  Case where I can access some of the attributes (accessible from limited functionality) camera:

  -By MAX I can change some settings so the snapshots of controller and make.

  -I can access these functions by IMAQ ('IMAQ camera set attributes.vi', etc. see Appendix vi example).

  -J' have a full control of the camera via the Hamamatsu Hipic 8.0 software, but only if I use the internal drivers and a different com port than those incorporated in the card PCI-1422 (Hipic offers not only port com in any case perhaps because there is no by saying?)

  Case where I can't access the camera at all:

  -If I try to use VI to a Hamamatsu (the most recent in sample screws & DLL or older version), it does not work: calls to any function of the 'tmcamcon.dll' return errors, pointing to the fact that there is no camera detected: the first sub_Vi (tm_initialize.vi) will return no error but zero connected camera and other screws return errors saying there is no camera using this handle, or no camera can be activated at using this handle.

  -I have NO camera control via the Hamamatsu Hipic 8.0 software if I use the DCAM API drivers no matter what com port (incorporated in the card PCI-1422 or other).

  Does make any sense to you?

  I just thought that the Hamamatsu screws cannot access the camera via emulation RS-232 of the PCI-1422. Is there a configuration setting, that I could use to those who do work and do not have to restart from scratch with IMAQ and with only limited functionality?

  Thanks in advance for your answers.

  Hello

  In fact, you can have access to the serial port integrated on the PCI-1422 map only with IMAQ functions.

  This explains that you cannot see in the section "Series and parallel" in MAX.

  I have not really well know PCI-1422, but there's probably a way to access the serial port on the card PCI-1422 in MAX.

  Camera attributes, you are able to access with IMAQ, y then the camera assigns the has camera driver.

  If you are able to access more attributes with Hamamatsu driver, it is the manufacturer who decided to restricted access to other drivers.

  But if you are not able to use the screw manufacturer, you should probably call him to find out why it works badly. Perhaps a version control problem or a update of the firmware?

• Too many simultaneous downloads of image AP, AP could not reach

  friends,

  wonder if any of you have seen this before, you try to join a 1142 on a WLC_SRE version 7.4.

  the AP can ping the controller and vice versa.  In the graphical interface of controllers: monitor > Statisticc > join AP, I can find the mac of the AP which I am trying to be reached.

  the details of this show of mac:

  Last error: discovery request rejected Lwapp

  last is produced at the rate of error: too many simultaneous downloads of image AP

  Last join Timestamp:

  any idea where I can increase the threshold for this?

  I've tried probably once too often.

  Thank you

  Mate,

  Where are the outputs of the APs?

• I'm trying to export multi-channel audio as apple pro res 422 HQ, but the tracks are all coming full joint rather than separately. I've implemented the multi Channel sequence already. What I am doing wrong?

  I'm trying to export multi-channel audio as apple pro res 422 HQ, but the tracks are all coming full joint rather than separately. I've implemented the multi Channel sequence already. What I am doing wrong?

  All 4 titles are coming as complete blends not divisions. I guess that's a problem with the entrenchment of the channels, but can't see how to fix. Andy

  Is what would you say to my quick thought without following through all the processes after the fact, the sequence settings? My thought is that the sequence settings must be multichannel as you show, but each Adaptive track, so this channel map is routed at your leisure. If this is not the case, already, it would create a new sequence with these settings.

  I try to upload the photo

  

• image capture multi-channel web publishing

  Hi, I used PCI-1410 to capture images of 4 cameras. It works well in vi. But when the publication on the web, the front panel on the web shows the same image on all channels of the vi front shows images of diffrenent to diffrenent channels. -Does anyone know the reason for this? Thank you very much in advance! The attachment is the vi that I use.

  I used different images for different displayers, it works on the web. Thank you very much for your help!