LabVIEW 2010 with CDAQ-9188 and NI9205

Similar Questions

• I need to upgrade my Mac (MacBook white unibody mid 2010) with a SSD (and iMac mid-2010) and the RAM and SSD

  I need to upgrade my Mac (white unibody MacBook mid-2010) with a SSD (and iMac mid-2010) and the RAM and SSD: I look to buy upgrades site Crucial and OWC site and there is a little difference, in terms of money: it's better to buy the Crucial site or OWC site.

  MacBook, OS X El Capitan (10.11.4)

  < re-titled by host >

  They have good tools to find compatible parts for your Mac models.  The OWC took is here

  http://eShop.MacSales.com/MyOWC/

  OWC tends to have the most detailed information on the Mac.  If I look to the top of the part to OWC and review specifications.  OWC offers often information based on the Mac-specific tests.  If Crucial offer something similar for a substantially lower price, buy it from Crucial.  I'm sure they have a refund is not political, if a part they say is compatible.  I bought the RAM and SSD both Crucial and OWC.  From my experience, be it high quality.

  For the 2010 iMac, OWC also offers a "kit" (with the tools and support) to replace the hard drive of 3.5 inches with a 2.5-inch SSD.  Eventually, if it's a 27-inch iMac, I think that you can Add the SSD instead of replace the hard drive.  And they have self-produced how-to videos on the process, related to many of their lists of products.  OWC provides a lot of information with added value and service for Mac users.

  OWC also offers kits to replace the optical drive on some Macs (including MacBooks) with an SSD (as a secondary internal drive).

• LabVIEW: Concerns with local Variables and the readability of the program

  Hello everyone. I was hired for the summer to work at my University to a new laboratory. All right, but I have some problems with my main VI. I am a new user of labview coming from a C++ background. I went through several iterations of adding features, fixing bugs and doing my readable program. Before the last "cleaning" my program was so big that I couldn't see it all at once on my screen. My goal was to solve this problem. My solution contained three parts: use a state machine show parts of my code at the same time, to remove the son as much as possible, and use structures element to position my code manually.

  I met since problems write other programs that brought me here, and I saw a series of messages condemning the new programmers for their use of local variables instead of cables. I do not know my use of structures element as fancy boxes I can exclude the automatic cleaning is also a terrible practice.

  After doing some more reasearch on the subject I see local variables to add the duplicate in memory entries and their suppression can significantly speed up execution time. I have a delay programmed in a part of my code, but the rest can run as fast as he can as far as I'm concerned.

  I have attached my main program. Looking at it I think I did a good job to make it readable. But I'm not a user expert labVIEW.

  How to balance (do not use local variables, these structures element, etc.) efficiency and readability. Before you make these changes, there was so many things and so many threads all over the place that I couldn't even tell what was going on, and even less my teacher. I really wish I could see my entire program without scrolling on this computer of the laboratory (resolution 1280 x 1024).

  Advice on how I can achieve the efficiency, simplicity and common readability would be greatly appreciated. I feel I've done the latter while sacrificing the first two. Ultimately the three should probably be equally important.

  Thank you.

  Nukem

  LabVIEW 2010

  

  As said altenbach, attach your event structures.  It should really be only need structure of an event, especially for a simple VI like that (I counted 3).  This is the second time I have recommended this today, but fetch JKI State Machine.  I use as the basis for most of my interfaces.

  Here's a way to manage the break with JKI.

  

  

  

• Simulate the sine wave using LabVIEW FPGA with NOR-myRIO and display in real time

  Hello

  I'm relatively new to LabVIEW FPGA. I am trying to test (and later apply) controllers high speed on myRIO.

  At this point, I'm trying to simulate the sine wave from 1 to 10 kHz using Sinewave generator VI express. I also intend to display the sine wave on the time real (RT) using FIFO. However, I had a bit of trouble to understaing various synchronization parameters.

  1. how to encode information about the sampling frequency generating sine wave? (The side FPGA vi requires only the frequency of the signal and possibly phase and does not rate update lines)

  2. how to estimate the number of items in a FIFO? (that is, the relationship between the rate of updates to loop (RT), the signal frequency, sampling frequency and the number of items in the FIFO)

  It would be great if we could share a very simple program (side host and target) that did something similar.

  Thank you

  MILIN

  Milot,

  I think the problem is the type of data in your FIFO. Your FIFO is configured to use a data type of I16. The problem is the number, it displays only ever will be-1, 0 or 1. To resolve this problem, you must send the sine wave as a fixed point data and convert it to a double on the side of the RT. This should significantly improve your resolution.

• I overload with cDAQ-9172 and the NI 9234

  The DAQmx Read property for ' overloaded channels exist "is not supported by my hardware (cDAQ-9172 with NI 9234). What can I use to stop the vi if the tension in the analog input is overloaded?

  

• Using instrumented hammer model PCB 086D 50 with the NI9234 module and chassis OR cDAQ 9188

  Hi all

  I need to try to shock with a PCB 086D 50 instrumented hammer hammer. I use the chassis OR cDAQ-9188 with the NI9205 and NI9234 modules. The hammer is connected to the NI9234 and accelerometers are connected to NI9205.

  When I test the modules in SignalExpress I get very good results for the dog, but the accelerometers are ok. Also, if I am controlled the hammer OR Max where I have the option to activate the IEPE the result is ok. In SignalExpress, I couldn't find the option to activate IEPE.

  I have no experience using software, but I started to learn. Does that mean that I need to program the system for my setup in LabVIEW? Also, the installer of the equipment makes sense, the modules that I plugged on the cDAQ can be used simultaneously? Should I have the additional device in order to use the hammer with cDAQ 9188?

  Thank you very much

  Emina

  You can enable IEPE in SignalExpress. Here is a configuration for a single power hammer and three accelerometers a 9234-related.

  

  You don't mention the model for accelerometers. They are also the IEPE sensors? If so, have what conditioning of signals you added before the 9205?

  The Assistant Sound and Vibration (built on SignalExpress) contains an example of Impact Test. The Sound and Vibration Toolkit comes with a sample project for the impact test. With free evaluation period, go ahead and look at how one of these examples is implementing the configuration and the triggered acquisition.

• You use HP 4156 instrument with Labview 2010 in Windows 7

  We recently bought Labview 2010 for Windows 7 and some software porting, we had on Labview 6.  These programs of control of two instruments: HP (Agilent) 4156A parameter Analyzer and the Keithley 7001 switch system.  When I looked for the drivers of instruments for these two systems, they were no longer available for Labview 2009 and associated NI-VISA 3.2 driver is not compatible with Windows 7.  You have any suggestions on how we can run Labview 2010 on Windows 7 with the ch (Agilent) 4156 A and Keithley 7001?

  A pilot in 2009 can be loaded in 2010 and this is the minimum VISA version, you can use. You need not even the driver of instruments most recent. Just run your existing code.

• cDAQ-9188 Ethernet connection problem

  We bought 2 cDAQ-9188 and I can't get them to connect to the computer via the Ethernet connection. I can make them work if I use a short cable (10 ft), but the location that I need them is about 180 feet away. When I do right click on network devices and select Find devices that it returns Nothing found. Is there any suggestions on what I might be wrong or what I should do to make them work? I'm running LabView 2010 SP1 and the drivers provided with the units of the cDAQ-9188.

  Of course, the PC Ethernet card we use is low. I have them connected to a router and placed near the PC router, and now, they work very well.

• LabVIEW 2010 crashes when you try to open vi

  Help!

  When I try to open my vi in LabVIEW 2010 only, it hangs and stops.  I have attached the vi, if someone can help me and maybe the file vi recover or at least so I can see the Bock diagram, it would be most appreciated.  Otherwise, I'll have to start over again.

  Sorry... This is 2010.

• Is it possible to put a picture in a dialog box with two buttons and a legend?

  I wish I had a pop-up dialog box that shows a picture with a caption and allow an operator to click 'OK' or 'Cancel '.

  This was done before or are at - there alternatives? I thought to have two separate pop ups, but this would not also be treated for a definitive solution.

  Thank you.

  Hello jmc.

  See the links below. This will be useful for you.

  http://forums.NI.com/T5/LabVIEW/A-picture-as-a-dialog-box/TD-p/236851

  http://forums.NI.com/T5/LabVIEW/dialogbox-with-user-input-and-image/TD-p/1601214

• What to do with downloaded .exe and .7z installation files to reinstall Adobe CS4 Web Premium?

  Hello. I bought Adobe CS4 Web Premium for my computer Windows 7 Professional 64 - bit in early 2010 with volume licenses and installed using the trial CD, I bought with it. The disc is a 30 day trial which can be converted to a licensed version with a license key, which is how I originally installed volume license software. After the reinstallation of Windows 7, I found nothing wrong with my DVD player - all other software on disk can be installed very well of him. But the Adobe drive will not work. It is not damaged. It is stored safely as with all my other drives. But he is still blocked permanently on the "checking system profile '. To remedy this, I tried to download and install the software. I can't find anywhere, but finally persuaded a consultant chat Adobe to provide a link despite the CS4 is no longer supported. But I was not able to do anything with the files to download. The .exe was told to wait for the archive .7z being fully present, but when it is, I don't see anything that is past. There is no instructions on the download page, so I tried to extract the .7z manually in the case which provided clues, but sees nothing to do with the extracted files to guess. I downloaded all 4 + GB a second time in case there was something wrong with the first set of files, but I got the same result. Another consultant to chat Adobe told me that I really need log volume license Adobe's Web site to obtain the right to download files. I did not see why this could be the case, because I had really anywhere with the download of existing files, files don't "know" that I am a volume license customer to give me an error based on the files being bad. In any case, the volume license site does not recognize my login as that of an authorized user, despite the fact that I have never changed since my original volume license email told me to use it to connect it. If anyone can help, that would be appreciated. I would be happy to provide you with all the other features are needed.

  As for Adobe CS4 Web Premium download files are faulty and Adobe does not care, and the people on the forum can not help with a file Adobe Adobe will not solve, I'll end this thread here.

• buffer size and sync with the cDAQ 9188 problems and Visual Basic

  Hi all, I have a cDAQ-9188 with 9235 for quarter bridge straing caliber acquisition module.

  I would appreciate help to understand how synchronization and buffer.

  I do not use LabView: I'm developing in Visual Basic, Visual Studio 2010.

  I developed my app of the NI AcqStrainSample example. What I found in the order is:

  -CreateStrainGageChannel

  -ConfigureSampleClock

  -create an AnalogMultiChannelReader

  and

  -Start the task

  There is a timer in the VB application, once the task begun, that triggers the playback feature. This function uses:

  -AnalogMultiChannelReader.ReadWaveform (- 1).

  I have no problem with CreateStrainGageChannel, I put 8 channels and other settings.

  Regarding the ConfigureSampleClock, I have some doubts. I want a continuous acquisition, then I put the internal rate, signal source 1000, continuous sample mode, I set the size buffer using the parameter "sampled by channel.

  What I wonder is:

  (1) can I put any kind of buffer size? That the limited hardware of the module (9235) or DAQ (9188)?

  (2) can I read the buffer, let's say, once per second and read all samples stored in it?

  (3) do I have to implement my own buffer for playback of data acquisition, or it is not necessary?

  (4) because I don't want to lose packets: y at - it a timestamp index or a package, I can use to check for this?

  Thank you very much for the help

  Hi Roberto-

  I will address each of your questions:

  (1) can I put any kind of buffer size? That the limited hardware of the module (9235) or DAQ (9188)?

  The samplesPerChannel parameter has different features according to the synchronization mode, you choose.  If you choose finished samples the parameter samplesPerChannel determines how many sample clocks to generate and also determines the exact size to use.  But if you use streaming samples, the samplesPerChannel and speed settings are used together to determine the size of the buffer, according to this excerpt from the reference help C DAQmx:

  

  Note that this buffer is a buffer software host-side.  There can be no impact on the material available on the cDAQ-9188 or NI 9235 buffers.  These devices each have relatively small equipment pads and their firmware and the Driver NOR-DAQmx driver software transfer data device to automatically host and the most effective way possible.  The buffer on the host side then holds the data until you call DAQmx Read or otherwise the input stream of service.

  (2) can I read the buffer, let's say, once per second and read all samples stored in it?

  Yes.  You would achieve this by choosing a DAQmx Read size equal to the inverse of the sampling frequency (during 1 second data) or a multiple of that of the other playback times.

  (3) do I have to implement my own buffer for playback of data acquisition, or it is not necessary?

  No, you should not need to implement your own stamp.  The DAQmx buffer on the host side will contain the data until you call the DAQmx Read function.  If you want to read from this buffer less frequently you should consider increasing its size to avoid the overflow of this buffer.  Which brings me to your next question...

  (4) because I don't want to lose packets: y at - it a timestamp index or a package, I can use to check for this?

  DAQmx will meet you if all packets are lost.  The default behavior is to stop the flow of data and present an error if the buffer of the side host DAQmx overflows (if, for example, your application does not pick up samples of this buffer at a rate equal or faster than they are acquired, on average).

  If, for any reason, you want to let DAQmx to ignore the conditions of saturation (perhaps, for example, if you want to sample continuously at a high rate but want only interested in retrieving the most recent subset of samples), you can use the DAQmxSetReadOverWrite property and set it to DAQmx_Val_OverwriteUnreadSamps.

  I hope this helps.

• How to sit interface with matlab 2010A and labview 2010

  I use tools of simulation interface 5.0 with matlab 2010A and labview 2010, I want to take my cue from matlab, labview but signal transfer, I am facing a problem. I want to know is there any compatibility issue in sit 5.0 or I do something wrong?
  photos of errors are attached.

  natasftw wrote:

  http://digital.NI.com/public.nsf/allkb/02F5FA55FC28BDE1862578A30071F975
  While it is for 2011, I doubt that they decided to remove 64-bit compatibility as they went forward as 64-bit has become more rather than less demand.  In this document,notes LabVIEW Simulation Interface Toolkit does not support 64 bit versions of MATLAB application software."

  The extent of the compatiblitly for 32 - bit, I'd take a peek at: http://digital.ni.com/public.nsf/allkb/D174674A91E5536286257428005C2426

  The OP's question was SIT support 64 - bit version of LabVIEW and 64-bit version of the MATLAB/Simulink itself, not the operating system software.

  Document in your second link is on a completely different topic to have API for LabVIEW and MATLAB/Simulink/RTW (well, mostly Simulink & RTW). Here is the relevant link for the 32-bit compatibility: http://digital.ni.com/public.nsf/allkb/049295038FF0EE2A86257A06006B2DAD is no SIT 64-bit.

  Other underlying issues is that Pharlap does not have a 64-bit version. Finally, simulations are better performed on some RTOS (embedded PXI) for a deterministic execution rather than PC operating systems.

  -BTC

• LabVIEW 2010 FPGA: problem with the mean and the variance Subvi

  The Subvi 'Average, Variance and standard deviation' seems to not work properly. The calculation of the average value is ok but std and variance are bad and the results change with representation in an unexpected way. Everyone knows about this problem? Is there a problem with the use of this function?

  Thank you

  Andrea

  Hello Andrea,

  Here is a test for the configuration of your VI (entered I16, 16 samples), saved in LabVIEW 2010 SP1 and the new Subvi. It is relatively simple to adapt it to other configurations, but it does not reconfigure several nodes and constants on the diagram. Let me know if it will work for you.

  Kind regards

  Jim

• Multifrequency 9223 9215 sync and 9213 in cdaq 9188

  Hello

  I'm trying to synchronize three different modules (NI 9223 and NI 9215 NI9213) every acquisition given to various higher sampling frequencies (e.g. 9223 = 1000 hz, 9215 = 100 Hz and 9215 = 2 hz) and write files to separate data for my task. I am using a cDAQ-9188 ethernet and all modules are in the same chassis. There is an external trigger (which comes from an external source) to start acquiring data which are wired connected to the PFI0 channel in the chassis. What I want to do is: whenever the trigger is high, acquire 10seconds of data according to different sampling frequencies high above and write in separate data files. I followed the procedure referred to in the http://www.ni.com/tutorial/5376/en/

  Here's a snapshot of the block diagram

  

  Now, the problem I am facing is the 'average frequency (NI 9215) data' and 'data of Thermocouple (NI 9213)' are acquired and written immediately after that I have start the labview program. Fast speed data (NI 9223) are not written, and wait for the trigger signal. And then it throws an error 200284. If I do just a finished sample rate on NI 9223 alone (without adding/attempt at sync with other modules) with expectation of release it works without any problem.

  LabVIEW files are attached.

  Suggestions very much appreciated and you wish all happy new year.

  Thank you

  Roy

  Hi Roy,

  'average frequency data (NI 9215)' and '(NI 9213) Thermocouple data' is acquired and written immediately after that I have start the labview program.

  Yes.

  You forgot to set a trigger to start these DAQmx tasks!

  And then it throws an error 200284.

  The description of the error says something like "use a higher timeout value. Have you tried that?