Precison display digital DAQ assistant tank

Similar Questions

• How to change the input range (DAQ assistant) with a digital command?

  Hello everyone

  I am currently working with the NI USB-6218 acquisition card.

  In order to acquire a signal, I would like to be able to choose the input range of the DAQ with a digital command Wizard (and not opening the window of DAQ assistant) (as 'number of sample' and section 'rate'...)

  Is this possible and if so, how?

  Thank you very much in advance for your answers!

  You can't with the DAQ Assistant so just click on and select "generate the Code of OR-DAQmx. You can edit the Subvi who performs the installation.

• digital output without DAQ Assistant

  Hello

  I can produce a digital output signal of some sampling rate 10 kHz with the acquisition of data-assist. Now I would like to implement the same functionality with normal DAQ - screw, as I have to synchronize serveral exits lateron. However, I failed get the normal screws so that they work as the DAQ assistant. The most important thing is out the arbitrary signal with 10 kHz.

  Thank you.

  

  Thank you very much. The idea of watching inside the acquisition of data-assist helped.

• NEITHER 9205 digital output configuration with DAQ Assist

  Hello

  I have two NI 9205 Analog Input Modules which I have configured to read from each of their 32 channels.  I used the DAQ Assistant help generate the vi which contains the task out - DAQmx event and also the DAQmx Read vi.

  I used the Wizard twice, once for each module 9205 and then put the playback functions in a sequence structure so that only read would be carried out at the same time.  It all works very well!

  Now, I want to add in the code to wait in a loop before all loop containing playback functions, so that the user can press the GUI to send a logic 1 to the unit under test, and after it is sent immediately starts collecting data.

  The DAQ Assistant Help does not recognize the module 9205 when I try to set up a task to write a digital output.  9205 a 1 digital output so why is the wizard does not recognize this?  I also tried to create a task manually, but I got stuck.

  Someone please help.  I can reach the source if needed, but I thought that the descriptions above were sufficient.

  Thank you

  Gary

  Hello

  You are right it shows a line in this user manual, and in fact, you have found an instance where an important piece of information was left out of the documentation. This digital output line is actually only available when you use a cRIO chassis. It will not work with the chassis for the acquisition of data compact 9172. Here is a knowledge base that explains it. I'll also go ahead and file a request for corrective measures so that this note be included in the next version of this manual. Thanks for the comments.

  Chris

• Device simulated in MAX, auto test without error and has work Test panels, but is not displayed in the DAQ assistant.

  I am trying to create a development machine, where we can test the new code without using our physical hardware. I followed this guide to set up a system of simulation. I get to step 3.2 b, but the device does not appear in the DAQ assistant. MAX, the device self test and gites calibrated successfully, and when I open the test panels, I see some sort of signal. I guess that's a default entry simulated since I didn't that device to look for anything? Note that two devices, I am creating the show upward into the devices section and Interfaces, but that, even after running auto calibrate, automatic Calibration date is not yet specified.

  

  When I try to test the device and create a voltage according to the guide, I can't see a device in the creator of data acquisition task.

  

  Steps 1 and 2 of this guide are of course met. Step 3 is not, but this is not surprising because a simulated device is in device in any case manager. Also, I'm not under RT, so step 4 is satisfied.

  Someone at - it ideas?

  That would be because the PXI-5124 is a digitizer not an analog input device.  You must use the NI SCOPE not NOR DAQmx driver

• Control relay with Boolean switch using DAQ assistant 9481 - problems

  Sorry for what may be a stupid question but I'm stuck in quicksand.

  I use a relay module 9481 and have two external relays connected lines 0 and 1.

  When I create a digital output 0 line by line, I can run the test inside the express and activate the relay and turn off without problem.

  The generated block DAQ expressed expects a Boolean input of 1 d. (See attached photo).

  I want to connect a Boolean switch relay line disk 0. You can connect live not because the switch is Boolean and the input is Boolean 1 d - I'm a conversation in the pict.

  All plumbing lines display results, the relay never active.

  Any bunch would be greatly appreciated! Thank you

  

  Mr._Mechanical,

  Welcome to the Forums of switch OR this forum is generally intended for products OR-SWITCH [such as the NI PXI-25xx & NI SCXI-11xx], I think I know the answer to your question.

  I think the reason why it's a failure is the conversion you make generates a table of 16 Boolean [as the 'boolean to (0,1)' function creates a data I16 type] with your data more false data points 15.

  

  When you try to control the relay, he sees 16 datapoints are you Commander to a single port [channel] and so error out.

  

  My suggestion would be to use normal DAQmx digital output screw [with, he set up as ' Digital > single channel > single sample > Boolean (1 line) "] rather than the DAQ assistant.

  If you use the daq assistant, simply by using the function 'Building the table' will transform your simple Boolean data point in a Boolean array containing a single element.

  

  While the DAQ assistant is very easy to use, I recommend that you use the DAQ assistant, because this reduces the features and increases the execution time.

• 201003-error occurred in the DAQ Assistant

  Hello. I use "cDAQ-9178" and "NI 9215" and "NEITHER 9402" are added on. "

  However, when I run Labview code, "Error-201003" occurs.

  {

  Device not available. Possible causes:

  Device is no longer present in the system / device is not powered.

  Device is turned on, but was temporarily without electricity / device is damaged

  }

  (Error appears as the 1st and 2nd figures below).

  (Plans of logic is the figure below).

  Thank you.

  I could be something with the pilot

  Check this box:

  Error 201003 to the MAX test panel or all by running the DAQ Assistant

  http://digital.NI.com/public.nsf/allkb/5413F392D88326148625746B006745C5

  In this forum, they speak the same error:

  Spontaneous error code 201003 for acquisition of data PCI configuration

  http://forums.NI.com/T5/SignalExpress/spontaneous-error-code-201003-for-PCI-DAQ-Setup/TD-p/830707

• Multiple entries to the DAQ Assistant

  Hello

  I'm doing my DAQ Assistant, in several (formed of an array) Boolean inputs where there is 1 digital output. (see attached software folder)

  Physically, I want a valve to open and close at a certain pace, where the user can install/control this pattern until the program starts.

  I think that the best way to do it is to have multiple Boolean values that the user can press or unpress.

  Before that, I started, I tried with only Boolean 1 where it worked perfectly.

  As seen on the attachment (error), it is possible to an easy problem to solve, but I just can't figure it out, I'm stuck at my already made solution.

  I use USB6008.

  I hope that there is a gentle soul who can help out me.

  Best regards

  Kenneth G. Vejen

  Hi Kenneth.

  When the output to the generation mode is set to "sample 1", which means that whenever you call the DAQ Assistant will generate 1 sample. In order to generate 5 samples, you must therefore call 5 times.

  I have attached a modified version of your VI, which shows a way to archive it. However, be aware that the samples will be generated fast and not at 100 ms note your loop runs. It depends on your application, if it is as you want samples to be issued.

• In Labview 8.5, what happens if the input signal exceeds the scope of the signal defined by the DAQ Assistant?

  Hi all

  This should be a pretty simple question, but I can't seem to find the answer online and currently do not have the functionality to test this:

  I'm using LabVIEW 8.5 and have a VI that imports data from sensor through the DAQ Assistant. In the configuration tab, there is a range of signal input. What happens if my sensor exceeds this range? I get a warning? The default value is the maximum (or minimum)? I was interested in writing a code to display an error that I approach the limits of this range, but did not know if I also need to include code to display an error if the scope is exceeded as well.

  Thanks for the help,

  Tristan

  Hello, Tristan,.

  The behavior depends on the selected range and the device you are using.

  If you are using a device with a single input range is valid, we will use this range, even if you set a smaller minimum and maximum in the DAQ Assistant.  So, if your device only supports ±10V and you set the range to ±8V, you will still continue to get valid data after your top sensor 8V until what you approach 10V.  When you reach the limit of the extent of your device, the output will be 'rail', and simply return the maximum value until the signal is less than the maximum value again.

  Note: A device that is nominally ±10V usually has a go-around (such as ±10.2V) which are usually specced in the manual.

  However, if you use a device with several ranges of entry then things become more complex.

  NOR-DAQmx player will choose the smallest range that entirely covers the interval you choose.  For example, suppose that your device supports the following input range: ±0.2V, ±1, ±5V, ±10V and you choose 0V - 3V as the range in the DAQ assistant.  The NOR-DAQmx driver will focus on the input range and the list of the entry lines that your hardware supports and choose the smallest encompassing the entire range that you set.  This would be the ±5V, because this is the only beach that contains up to 3V.  Thus, all between ±5V input signal is returned and none outside this range will be 'rail' to the maximum or minimum value.

  We do this because using small beaches make more efficient use of the resolution of the ADC.  So, we try to use the most effective range based on what you ask without picking up a range that will make you miss data.

  Let me know if I can clarify it more.

• DAQ Assistant as a selector of case

  Hello

  I'm reading an entry to my daq assistant digital camera, and then to hold for x number of seconds, up to that time. The entrance to the wizard matter not after the first entry.

  So, I used a switch case and started trying with a virtual switch. Everything worked fine... until I begin to try with the daq assistant. The output of a data acquisition assistant is a table 1 d of boolean. The entry for the case selector is a Boolean value.

  It is possible to select the cases according to the output of the daq assistant? If it is true, how can I do this?

  Greetz Margaret

  I added a table of index to your code that modifies the array to a single digit. Remember that this only gives you the first digital input. If you switch to a different channel, you'll have at this table to a different number of the index.

  Second time isn't a very good way to measure time so I changes the way vi a measure of time.

  Thirdly, the outside while loop is not necessary. The two loops will be run until you press the stop button. I think about the use of an event to capture the stop function so that you don't need to a stop button.

• I use several DAQ assistant but it seems impossible...

  Hello world

  I'm on a project for some time.

  To summarize, I had 3 modules for the project: Anolog, digital, input resistance meter.

  My main program works, but now I have to connect with an excel file.

  I found an easy way of this solution, but now my problem is bigger. The fact is that I use my screws and screws with this how to link my data, but according to LabVIEW Sub, I can't, in the same program, do something in relation to 2 modules different. Obviously, each module works with a DAQ Assistant.

  To be more specific: I want to put the data from the 2 (thanks to the analogue of the module), and wire different sensors 1-> 0 or 0-> 1 (thanks to the digital module)

  And when I link 2 DAQ in the same file or 2 screws secondary who got 1 acquisition of data in entry of a measurement file, it does not work. The error that I can not launch the DAQ second after the first... so...

  I hope you understand my problem.

  You have a solution for this problem? Should I change a large part of my program to do this or is it just a small detail?

  Thank you in advance! I'm really disappointed-_ - I'm for several times... and I'm late for my project...

  Best regards.

  ML

  
  

• Is the DAQ Assistant compatible with LabView7?

  I am equipped with a LabView7 and a NI DAQ - 6015 Pad and am trying to monitor the temperature with two thermocouples. I searched some tutorials online, but most suggest using assistant DAQ, which is not listed in the section of my functions palette entry. I have downloaded the NOR-most recent DAQmx driver who is supposed to be compatible with LabView 7.x. I don't know if this means that it is compatible with LabView 7.0. I still do not see the DAQ assistant appear.

  Any help or suggestion (about DAQ assistant or how to program in LabView7 to solve my problem) is greatly appreciated!

  Thank you.

  It looks like the DAQmx latest version is 8.1 which will work with LV 7.0

  See here http://digital.ni.com/public.nsf/allkb/97D574BB1D1EEC918625708100596848

• DAQ Assistant as input for the formula

  I need the output to my DAQ assistant for that entry into a knot of formula. But I can't do it because the terminals are different; data Dynamics vs double [64-bit real (precision ~ 15 digits)]. Is there a way in which I can use these dynamic data in a node form?

  Look in the express palette under the manipulation of signal for an another express VI, called "DDT".

• Consecutive calls to DAQ assistant

  Hello

  I'm working on something that is very probably simple.  Maybe the problems stem from a bad initial design choice.   The VI (and subVIs) are used at a voltage output, read another tension and react accordingly.

  First the error I get is "error-200547.

  Here's how the program works:

  1 MOVR.vi

  This generates two analog output signals, controlled by the same signal generator.  There is also a digital signal, but I don't think that's the problem.

  2 MTUL.vi (and MDTL.vi)

  These use MOVR and read another voltage.  Essentially, the voltage must be created until the limit is reached, and he decides to stop.

  These two work as expected on their own.

  3 IsoMeasure.vi

  This is where the problems occur.  Basically, this VI take MTUL and MDTL and makes a loop in a loop for, change the frequency of each increment.  The observed performance is MDTL will work and try to start MTUL.  It's when 'Error-200547' is thrown.  The error code appears to be understandable, but "autostart" isn't clear for me using the wizard.

  I would avoid using all daqMX code, but I will if I have to.  If that's the suggestion, a good example is that sort would be great.  If I can put the autostart Assistant, I guess it would help as well.

  Thanks for all the tracks.  I think it should work.

  Hi drevniok,.

  The reason why you get this error is that you try to restart your DAQ Assistant several times in your application. One important thing to note is that a task DAQmx configured and started only once each time the DAQ Assistant is called for the first time. Therefore, since you are stop and start the DAQ Assistant, in your application, the second time you call the wizard, it does not start the task. This is made more so by the fact that the function of writing in the DAQ Assistant DAQmx has his automatic starting of entry set to False.

  Using the DAQ Assistant for Analog Output returns an error-200547

  That being said, the DAQ Assistant is mainly used as a quick and easy to set up and use your DAQ hardware, however, it is a bit limited in functionality compared to the lower levels DAQmx live. This is a case that illustrates this limitation and therefore, I believe that the best solution this problem would be to use the DAQmx LabVIEW vis a lot shipping examples that can help you get started developing your application. These lie in you NEITHER example Finder under the menu help. "" The example I want to show you is the Regeneration.vi Clk - no Cont Gen Wfm - Int voltage under input and output material"DAQmx" analog generation "voltage.

  Is another resource, I want to tell you the getting started with NO-DAQmx: Homepage, which are a collection of tutorials online on DAQmx programming.

  I hope this helps.

• Calendar and the problems of data collection with the DAQ Assistant

  Hello NOR Developer area,

  I am a Novice of LabVIEW and have seen how helpful you all can be, and if I come to ask for your help.

  I'm having some trouble with a VI I built that specifies an input voltage, a SCB - 100 connected to a PCI-6031E and converts this tension in a temperature displayed on a waveform table. The goal is to give a constant reading of the temperature and display it in a chart for as long that the VI is running (and to reset the chart the next time the tracks of VI).

  The problems I've encountered currently are:

  -After a few minutes of the VI running, I get an error message 200279: tried to read samples that are no longer available. The requested sample was already available, but has since been replaced. (to the DAQ Assistant express VI).

  -I don't know how to change my chart so that the minimum value X is both during which the VI was launched and have the maximum X value increases with each iteration of the loop. Currently, I have the VI get the time system and contributing to the property node X scale. This worked for the graph of the voltage, but not for the temperature chart

  I appreciate those of you who took the time to read my post.

  Thank you all for your help.

  Sincerely,

  Ethan A. Klein

  SB candidate in Chemistry & Physics

  Massachusetts Institute of Technology

  Class of 2015

  PS I enclose my VI to give you a better understanding of my current situation.

  E A Klein wrote:

  Thanks for writing.

  What property node is talking?
  I do not understand that many different data types. How can I go on the treatment of all the data?

  (Did you mean I should wire 'blue' data for mathematical functions rather than using the node property tension?)

  Sincerely,

  In fact, one of the nodes property.  I mean specifically the tension property node.  But in reviewing, I noticed the other nodes in property for the chart.  Just set auto-scaling to the X scale and that should take care of two of the nodes property (right click on the graph, X scale-> AutoScale X Scale).  I also recommend placing your mathematical functions in a Subvi to make things easier to read.  Attached, that's what I think you're after.

  I hope that these small tweaks will speed things up enough to avoid your error.  If this isn't the case, then we should begin to look at the design of producer/consumer model or take readings at the same time.  It might also be worth looking away the DAQ Assistant and DAQmx real screws.  But one step at a time.