Lack of vi DAQmx

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• NOR-DAQmx tools lack

  Hi all

  I installed the latest versions of NOR-DAQmx and NOR-DAQmx base software. I would use the tools NOR-DAQmx (like on the video tutorial: http://zone.ni.com/devzone/cda/tut/p/id/5370) but I can not find the software (screenshot attached) tools. Anyone know what's the problem?

  Thank you!

  Hello Joonasmikkola,

  You should be able to have the DAQmx Base and DAQmx installed on the same PC (I have both in my other computer).

  Could you open measurement and Automation Explorer, expand the software tab, check if you see list of NOR-DAQmx?

  If it is not, I'll try to repair OR DAQmx of Windows Control Panel > add/remove program > National Instruments > NOR-DAQmx and do a repair on the pilot.

• Do you need 'DAQmx start task' vi read from a device NI DAQ (NI 9205)?

  I have a NI 9205, which I use to get a waveform data. To get started quickly, I used the wizard DAQ Vi. The code below (FIGURE 1) is the acquisition of data help VI looked like when I convert LabVIEW code and made some minor adjustments.

  When I looked online to see how to get hardware DAQ data, many sources use the task start DAQmx in figure 2.

  DAQmx start using VI makes another?  Materials using DAQ assist in loop gives you a lack of performance?    If so, figure a will have a lack of performance too as it is basically the DAQ help code?

  FIGURE 1

  Hello sticyfinger,

  Help for the Start Task function:

  "If you do not use this VI, a measurement task starts automatically when execution of the reading DAQmx VI. Automatic start of theDAQmx VI entry write determines if a build task starts automatically when the execution of the writing DAQmx VI.

  If you do not use the DAQmx start task VI and VI task DAQmx stop when you use DAQmx Read VI or VI to write DAQmx several times, as in a loop, the task starts and stops several times. Start and stop a task repeatedly reduce the performance of the application. »

  Hope that helps!

• DaqMX wait the next sample causing slow down Clock.vi

  Hello

  I have a question about the proper use of DaqMX wait for next sample clock.

  I read channels analog voltage on a map or pcie-6259.

  I would like to read as soon as possible make your comments between each of these points of single data points.

  I wish I had an error generated if I miss a data point.

  From reading the forums, I've gathered that the best way to do it is using the Timed Single Point material.

  A simplified program that I use to test this is attached.

  If I remove the DaqMX wait for next sample Clock.vi, my program seems to work.

  I added a counter to check the total time is as expected.

  For example, the program seems to work at the speed appropriate for 120.

  However, without that vi, it seems that the program does not generate a warning if I missed a sample.

  So I thought that the next sample clock waiting vi could be used to determine if a single data point has been missed using the output "is late."

  However, when I add inside as shown in the joint, the program seems to slow down considerably.

  At high rates as 120000, I get the error:-209802

  14kHz is the approximate maximum rate before you start to make mistakes.

  My question is: is this the right way to check a missed sample? I don't understand why the wait next sample Clock.vi is originally a slow down. Without this vi, the program does just what I want except that I do not have strict error control.

  My confusion may be based on a lack of understanding of real-time systems. I don't think I do 'real time' as I run on an ordinary pc, so maybe I use some features that I wouldn't.

  Thank you

  Mike

  Mike,

  You should be able to read to return delays errors and warnings by setting the DAQmx real-time-> ReportMissedSamp property.  I think that if you enable this, you will see errors or warnings (according to the DAQmx real-time-> ConvertLateErrorsToWarnings) in the case where you use read-only.  I'm a little surprised that you have measured your application works at 120 kHz without waiting for next sample clock (WFNSC), although I'm not surprised that it would be significantly faster.  I think if you call read-only, you'll read the last sample available regardless of whether you would of missed samples or not.  When you call WFNSC, DAQmx will always wait for the next, if you are late or not sample clock.  In this case, you will wait an additional sample clock that is not the case in read-only.  Once again, I expect that, in both cases, your loop would not go to 120 kHz.

  Features real-time DAQmx (hardware Timed Single Point - HWTSP) are a set of features that are optimized for a one-time operation, but also a mechanism to provide feedback as to if a request is following the acquisition.  There is nothing inherently wrong with using this feature on a non real-time OS.  However, planner of a non real-time OS is not going to be deterministic.  This means that your app 'real time' may be interrupted for a period not confined while the BONE died in the service of other applications or everything he needs to do.  DAQmx will always tell you if your application is to follow, but can do nothing to guarantee that this will happen.  Thus, your request * must * tolerant bet of this type of interruption.

  There are a few things to consider.  If it is important that you perform the action at a given rate, then you should consider using a real-time operating system, or even with an FPGA based approach.  If it is not essential to your system, you might consider using is HWTSP, where you do not declare lack samples (DAQmx simply give you the most recent example), or you could avoid HW timing all together and just use HAVE request to acquire a sample at a time.  What is appropriate depends on the requirements of your application.

  Hope that helps,

  Dan

• my channel DAQmx property node missing RTD?

  RTD may be available in the menu shown? I do not have a RTD hung right now; could be the problem? However, I don't have a thermistor or thermocouple and these options appear. I'm putting A, B, C, and R0 by program.

  

  Hi Greg,.

  By default, DAQmx filter properties that are not supported on the devices installed. So if your device does not support the RTD channels, then this is quite normal.

  However, one of your previous discussions spoke the USB-6009 case, so I tried with it. The 6009 supports channel RTD but the property for the 6009 filtering info missing properties of RTD, which is a bug. I dropped the CAR #295521 on this subject.

  The workaround is to set the property filtering node to "Show all attributes": lack of properties in the property DAQmx nodes

  Brad

• Error 200077 (frequency) and 200452 (task control loop) error occurred DAQmx create calendar Source.vi

  Hello

  I'm trying to control the timing of a timed loop. So far, I have tried several approaches via the software and which worked very well except the time loop in some missed cases 1-2 Ms I want to make sure the timing is right. I tried to provide an external clock through the acquisition of data I. The system I use is NI USB-6212. It has two counters and DIO and AIO, but I keep getting errors. I tried two different approaches. One was to use directly the game 'DAQmx create calendar Source.vi' in frequency mode, and when I did, I got error 200077. Then I found a post of somone saying that sometimes it is not possible and an alternative method is to use the same vi but set task of loop control mode. This one gave me Error200452. For this one you will see in my attachment the suggestion was to use an AI then the moment of him and then use this task for Creat DAQmx synchronization Source.

  I don't know what the problem is or if I need to put something differently.

  Please let me know if you can help me with this.

  I'll try to continue to work on that, but if anyone of you a suggestion I'll be very happy to consider the issue.

  Thank you in advance,

  Best, Massimo.

  Massimo,

  In my view, the errors that you see are the result of your hardware USB-6212 is supporting the functionality of the task control loop.  I have a M Series PCI card that is capable of operating both of your screws attached without problem (although they still +/-1ms variation on occaision).  When I try to use a USB-6212 simulation, I get the same error codes that you do.  Unfortunately, it's just a case of a lack of equipment.

  Kind regards

• DAqmx and IMAQ pallets do not appear in my palettes of LabVIEW 2011

  Hello

  I use LabVIEW to my University via a Campus license since 2005. I installed it on several computers.

  My problem is related to a new LabVIEW installation on a brand new computer.

  I have the license Site LAbVIEW 2011 Academic just installed and validated (via the License Manager) in this new machine running 64-bit Windows Seven.

  [I also installed the DAQmx and the "distribution of February 2011" IMAQ drivers (downloaded from OR) as well as the NI Vision Software (version for LabVIEW 2011, the same distribution as the LabVIEW 2011).]

  I launched LabVIEW Ant checked to see if everything was there, specifically the DAQmx and IMAQ functions, since I have the cards OR to make the acquisition of data and images. Note that I have not yet installed these cards in the PC. I m going to do only when I would have ensured that all the software is ok.

  The subpalette DAQmx in measurement of i/o functions palette is missing.

  Also, if I'm looking for the NI-IMAQ subpalettes in the range of Vision and movement functions they also lack.

  Notice that all other subpalettes in the range of functions of Vision and movement are OK and there appear (utility of Vision, Image Processing, Machine Vision, and Vision Express).

  Then, I checked if the installed drivers are really there. For this I used the MAX or (measure explore), and it looks like it all everything is there.

  I mean, under NI MAX > my system > software I can see these articles:

  NEITHER Vision TERM 2011

  NOR-IMAQ 4.5

  NOR-DAQmx... several entries

  I checked if the forum or knowledge base in NOR have any clue on what to do, and I found somewhere by the idea of trying to fix the installation via the Windows 7 Control Panel > programs and resources > OR software.  I did this procedure twice, just in case...

  I also tried to remove and reinstall all software (including drivers) and NO, I did it twice. The result is always the same.

  Any suggestions?

  When you install the drivers, you include support for LabVIEW 2011?  If this isn't the case, you won't see the LabVIEW screw in your palettes even if the software is installed.  Normally I expect that the Setup program automatically adds this support, but he can't do it, especially if you have installed the drivers before installing LabVIEW.  See the image below:

  

• Lack of external function DAQ channel read

  Hello

  I did a few installers to share on the network variables, one is based at DAQmx readings of analog channels use modules of simulations and the second donkey receives variables shared these radings... I thought it was pretty good, because I have the main application (channels read and share variables) in my main PC (which has istalled LabVIEW 2012) and the other track in a regular PC (no software OR installed until my Installer Act) and it worked fine. However, I installed the main application in the regular PC and I got an error stating: lack of external function DAQmx read single sample DLB... I guess I should include in my Installer features on DAQmx but I Don t know which ones to avoid this error and be able to install my apps in any PC... Thanks I await your advice!

  Well, I found the solution...

  I've just included confiuration NI DAQmx MAX support to my app Installer and I solved the problem...

• . Exe missing DAQmx subVIs

  Hi all

  I built an installer for my .exe. I have included:

  1 OR LabVIEW Run-Time Engine 2012 SP1

  2 NOR-DAQmx Base Runtime 9.6.2

  3 NOR-DAQmx Configuration MAX 9.6.2 Support

  The computer I did the VI is a Windows XP computer. The computer I want to run the installer is a freshly installed Windows 7 machine. When I try to run the installer, I get the following error:

  Missing Subvi DAQmx create Task.vi... lack of sub - VI DAQmx create channel (TEDS-A1-tension-Basic) .vi.... Missing Timing VI (sample clock)... Missing control task.VI... Missing clear task.VI... Task.VI stop missing... Lack of function external nilvaiu.*AQReadNChanNSamp1DWfm:C...

  Looks like I'm missing VI DAQmx, yet I've included DAQmx in installer.

  Thank you.

  I know this sounds like a stupid question, but have you run set - up.exe volume? You can open MAX on the target machine?  If Yes, what are the software components are listed?  Did restart you to complete the installation?

  My 8-Ball is screaming that this is a simple mistake that will involve a time .

• Reading USB-6008/DAQmx sampling

  I use LabVIEW Student Edition 2009 with an acquisition of data USB-6008 on a Windows 7 computer.  I must confess that I am rather self-taught in LabVIEW and may lack in fundamentals.

  I wrote a code to move motor back with a sine wave with the 'Signal to simulate"VI and VI"DAQmx Write. "  I think that this part of the code is OK but its probably sloppy.

  The part that that concerns me is the "DAQmx Read" part - I use this to get a feedback of the motor position on an analog scale 0 - 5V via the port of AI1.  I also use this DAQmx Read to get another feedback voltage from a force sensor that feels the force in a piece of material set by the engine.  I want the information to all-terrain such as graphs or tables with the last 30 seconds, and then a value of information, but that's all I want to see since this cycle repeats for hours.  I also need to process this information - if the strength of the material gets high, I need to stretch less etc.  So far, everything is working fine, but now I want to use the "peak detector" VI for expressly that the "peak" of the sine wave is part of a certain range of strength and the '' Valley '' falls into a second range of force and clearly since I read this information as a single integer/sample there is no 'memory' of the last seconds in the form of a table of examples past or a waveform or something like that I can't detect the peaks.

  So my question is - should be sampling this information differently to temporarily store information (such as a waveform or something?) or should I use individual samples to build a continuous array for the last 30 seconds?  In other words, what is the best way to read this information in a way that will make it easy to detect the peaks on the final seconds, but not to store hours of endlessly repeated information?  I also want the release of LabVIEW and feedback from the system graphics to match so that the signal sent to the engine for the same positional signal back to LabVIEW from the engine.  I should add that I do not know if the system works in real time or on a little late, but nothing like over delay of 30 seconds.

  I have attached a code that I use to calibrate my system - is not the same as I mentioned earlier, but things 'DAQ read' are the same and you get the idea with the rest of it.  I can also reach more detailed code if it would help.

  Yet once again, I'm sorry for my skills of coding bush-league and thanks for any help!

  -Chris

  If you always use a waveform chart to display your data and your happy with length of time of the chart, you can use the 'Historical data' property node for recover your data from 'short term' gathered.  From there, you take the data and make a type of waveform data using the 'build' primitive waveform.

• Counter DAQmx signals routing

  People,

  I'm unable to learn how to change the routing of the counter on a cDAQ-9174 chassis entries.

  There are two modules OR-9401 in the chassis, one is used for the inputs of a rotary encoder.

  In this announcement (first a page on), Tom W mentions using a knot of DAQmx channel property to select the input terminals.

  In the attached file Task count, I placed a channel DAQmx property node.

  I don't get any routing options when I use this property node. What I am doing wrong?

  Software environment: LV2010, DAQmx 9.2.3 Max 4.7.7

  I enclose a configuration file that you can import to MAX to create a simulated with modules cDAQ chassis.

  Thank you

  Steve

  Hi Steve,.

  Please double-check that your property filter setting is "display attributes for configured devices ': lack of properties in the property DAQmx nodes

  Brad

• good resources DAQmx

  Ive just started trying to play with a box daq for my current project. Ive been searching google to find good resources out of which continues, but most things seem to be quite lacking. specifically, I'm trying to use events and I had a push button to work the activation/deactivation of an indicator, but now im trying to read in the accelerometer data and which seems to be a bit more complicated.

  all links to the good info on the use of the acquisition of data with events would be great.

  Thank you

  Hello

  You can share your code?

  Have you searche the examples that come with LabVIEW? There is an example in the material of entry and exit-> DAQmx-> Analog Input-> voltage (events) - continuous Input.vi

  Good luck.

• Lack of App music

  Hi can anyone help solve my problem?  My husband iphone 5 IOS 10.0.2 lacks the music icon, I tried to get into the settings and then reset and then reset homescreen layout but it always appears, I also tried to restart the iphone?  I can not find how to get it back?

  I have the same problem on iPhone 6 and can't seem to find any help online... Please HELP, Miss me my songs...

• Indicator light charging cable does not go on when connected to power what a lack of cable or battery problem? Advice please. I have

  Indicator light charging cable does not go on when connected to power what a lack of cable or battery problem? Advice please.

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• iPhone storage mystery! (Lack of 42 GB of storage space!)

  OK the Forums of Discussion... it is a mystery.

  My father has been to complain his iPhone 64 GB 6 by saying that he did not have enough storage. I thought it would be a simple solution like the removal of unused applications, turning on iCloud photo library and the optimization of the photo, but what I discovered has totally confused me.

  My father's phone shows that it used 55.2 GB in settings > general > storage & use iCloud > manage storage. Yet when I add everything in the storage management screen it is only 13.2 GB, a difference of 42 GB.

  I decided to do the same exercise with my phone. It is said that I used 28.1 GB and when I add the items in stock to manage, I get 23.2 GB which is a much more reasonable difference of only 4.9 GB.

  So where is the lack of 42 GB?

  Any help would be great. Thank you!

  When I go to settings > general > storage & use iCloud I see two options "managing storage. One is local storage 'my device' and the other is iCloud.

  Do you see the two options (1), (2) your device?