Acquisition of data GSM using NI USB-6221

Similar Questions

• How to create a simulator of hall sensor using NI USB-6221

  Hello.

  I am creating a hall sensor Simulator using the NI USB-6221 case.

  The idea is to have three digital outputs that generates output a digital pulse according to six different stages train.

  See the table below.

  

  And it's interesting to have this work in for example 5000 RPM (meaning 2 milliseconds between each stage).

  My question is, is it still possible with the NI USB-6221 housing?

  I tried to create a simple state machine, leading the outputs according to a predefined table.  But it became clear that it is far too slow.  The NI USB-6221 uses 10 to 15 ms to generate a numerical value of LabVIEW.

  Thanks for any ideas on how to do it.

  Looking at the datasheet.

  http://sine.NI.com/DS/app/doc/p/ID/DS-10/lang/en

  Under the digital I/o, you can see that the digital lines on Port 0 maximum clock frequency is 1 MHz.  This means that you can go from a Summit to a minimum once all the 1 micro second.  Your hardware is capable.

  The software side of things you should realize that to change the digital line from a high to a low that fast, you need to use certain types of calendar that does not have Windows.  Windows (and other operating systems) are not deterministic.  So instead of being in a loop from one State to the other, put in the buffer of the DAQ one card series of digital States and then specify the DAQ hardware to read at a given speed.  Then your synchronization is performed by the hardware, not by your software.

  Search for finder example for Digital - output continuous for an example on how to do this.

• Generation of two channel analog output using NI USB-6221

  
  

  Full question

• Neither USB-6221 thermocouple

  Anyone who has used the USB-6221 for measurement by thermocouple? I'm doing a number of analog measures with two of them being J type of transport CANADA, have not used the 6221 before, but my client is not the money to go the compact DAQ road on this project. I would like to have compensation CJ, don't know how I'd do.

  A similar position is on the page of multifunction data acquisition, know that this one gets more views.

  Thank you

  I got my answer in the multifunction, DAQ card so I guess that it really is looked at frequently! Sorry for those who are hiding on this Board! I guess my point of view, LabVIEW-centric shows!

• Read for the acquisition of data entries are overwritten

  Hey there

  I have a Daq reading input in a spreadsheet file

  Data acquisition was told that one is supposed to have some time a loop around it and I cannot get it to run without one, so good

  But my main problem is that it means that it replaces my written file each time that the loop repeats

  He also asked me to choose the file to write in several times

  How would I go about fixing this?

  Thank you

  Yes, you can convert digital to the chain, check the attached VI. I recommend you to go through the basic materials of LabVIEW and also play with example of NEITHER which comes with LabVIEW. Remember not to use the attached example and the acquisition of data, always use separate loops.

• Test capacitor does not load when DAQ USB-6221 is used as a measuring device

  Forum of NOR expensive, I have a Setup (see below) which is supposed to read the tension between a capacitor and a resistor in series.  Unfortunately, I found that the capacitor is unable to load completely with the connected acquisition of data entry.  However, if I remove AI0 connection of the circuit and the capacitor charges normally...

  I would be grateful if someone could explain to me:

  • Why this happens
  • If there is a way to change my test circuit in order to fully load the DAQ capacitor is connected

  For reference, I tried to change the position of resistance and capacitor (i.e. initially the capacitor in series), and in this case, the capacitor had no problem charging.  But for my purposes, I will need to test with first series resistance because I already have a lot of maps of test which are built this way.

  The food is set up to provide 75V (the rated voltage of the capacitor) when put on and the current limit is set at 20 Ma.  With these settings my capacitor only charge about 20 or 30 V with DAQ in the circuit.

  

  Let me know if I can give more details and thanks in advance to those who give thought to my question,

  You may test the limits of your USB-6221 surge.  I hope that you don't him don't have not damaged.

  You should be able to use some simple resistive voltage dividers for tensions in the acceptable range.  They will limit your ability to measure the leakage current.

  Lynn

• Need a new acquisition of data USB multifunction device

  Hello

  Currently I use a PCIe - 6321 Multifunction DAQ hardware to control my stepper motor. I need to change the PCIe - 6321 and use the engine with a device for the acquisition of data USB multifunction bit PCIe - 6321. I'm not sure which USB model to select. Can I please get help about the choice of the right MIO USB data acquisition device that works similar to the PCIe - 6321.

  Thank you

  Bharath J S

  The 6212 differs from the 6321 somewhat on the digital side, which probably you use to control your stepper motor.  For example, it was only software DIO timed tasks and has only 2 counters with a set of features (e.g. no output meter in the buffer).

  Best regards

• Acquisition of data NOR usb 6008: a strange problem: mxwcgoutrunsilent.VI is not respected

  Expensive OR

  Today, I bought an acquisition of data NOR usb 6008

  and I'm using labview in 2011
  the problem is appear when after I end the process of configuration of the i/o data acquisition Wizard

  the following image shows the mxwcgoutrunsilent.VI is ignored and an error has occurred

  

  someone can help provide this VI for me

  What is the complete labview modules can also so I could do a real time data acquisition

  Best regards

  mangood,

  You received an error code? If so, what is it? What version of NOR-DAQmx driver you have installed? It seems your driver potentially incorrectly installed, and you may need to reinstall the driver.

  Here is the link to the latest version of the NOR-DAQmx driver: http://www.ni.com/download/ni-daqmx-9.8/4297/en/

• Looking for a way to mount an acquisition of data USB-6008

  Anyone has a suggestion for an acquisition of data USB-6008 mounted on a Panel. I use it for a system where it should not be loose. I have a few ideas, but hope that someone smarter already has a good solution.

  Thank you

  It is not a robust application, but the box will be moved and I don't want it put in the open air. I simply put a velcro pad on the back and the atttaching in this way. Should be all I need.

• Generation and acquisition at the same time, acquisition of data USB-6356

  Hello

  I have a VI how is able to read entries with a USB DAQ-6356 and I use a generator of signals 'Agilent 33522 A '. I want to generate and acquire with the acquisition of data.

  In fact it works but not well, the frequency is not very stable and does not stop the 2nd loop with 1 (2nd is generating, 1 is Acquire).

  Thanks in advance

  P.S my VI isn't a state machine true because I need to fight against it at the moment.

  OK, so you're at 3 ms/s in writing and reading at 1.25Ms / sec and you wonder why he has a little difference in the frequency set?  Ideally, you want to read and write to share a sample clock but by selecting at least the same frequency clock (or one that is one multiple of the other) would go a long way to fixing this source of your error.

  The second source of error: you generate a contineous waveform.  unless you select 'whole number of cycles' there is a discontinuity when the end is reached at an arbitrary phase and the phase is reset to zero at the beginning of the wave.  DAQ assistant writing can "Use Waveform Timing" to adapt its sync settings to the dt waveform and the number of samples.

• Acquisition of data using C++ and cRIO-9066

  Hello!

  I want to write a C++ application that would make the acquisition of data from modules installed in the cRIO-9066 chassis and this application should work without LabView. How can I do? This chassis connect to my PC using NI-DAQmx? Is this possible?

  Hi aanodin,

  When you use a device that uses our architecture of RIO, it is usually best to use LabVIEW to develop your application. In this way, you can also program the FPGA with LabVIEW FPGA module and makes programming much easier real-time processor. In fact, your model of cRIO is officially supported by our LabVIEW programming language, as seen on page 4 of the Manual: (http://www.ni.com/pdf/manuals/376186a.pdf).

  Due to the FPGA interface, you cannot use DAQmx with cRIO. I hope this helps.

• temperature sensor with the acquisition of data usb-6009

  Greeting

  I want to use a sensor with usb-6009 to save the variation of body temperature about 15 minutes and then use these data in labview.

  If you please you can advise me with the best low-cost use and the way/circuit sensor connect it to the usb-6009.

  Hi ba7soun,

  If you can use with USB-6009 LM35 depends on the range of output voltage of the sensor. I understand that it requires a 5V supply with respect to the ground, which you can provide to the USB-6009 (more than 200 my should not come from the USB-6009).

  The maximum range of the USB-6009 is - 10V to + 10V, while the minimum range is - 1V to + 1V, also probably the output signal of the LM35 will be in this range. What you need to do is to compare the full range of the output signal with the range of the DAQ divided by 2exp (14) (because it is a 14 bit ADC) and ensure that the first is much more than the latter.

  Kind regards

  Condette Dhruv.

• Acquisition of data using the DAQ card

  Hello everyone

  I need assistance with the acquisition of data of the generator of signals through DAQ cards. I plugged the signal to the SCB-68 generator where the analog inputs of the generator are connected to AI CH5 and AIGRND of the Terminal Board. Then the output of the block is connected to the DAQ card. The maximum sampling frequency of the card is of 250 kech. / s. The problem is for reason that I am not able to see the waveform on the labview. I looked at other examples to find the problem, I am, but I am not able to understand this. I want to be able to choose the sampling frequency. I attatched my code as an attatchment for you all to help me know what the problem is. Any suggestions will be appreciated.

  There is no task!  You have not specified any hardware (i.e. your data acquisition card) anywhere.

  Here's a suggestion.  MAX aperture.  Find your DAQ hardware.  Open a Test Panel.  Implement a continuous sample of N Points to some sampling rate.  Press Run and convince yourself that you get the data.

  Now, while remaining in MAX, to create a task, using the same settings.  Call for example something sensible ("MyFirstDAQTask" is not a good reputation).

  Now, go back to your code.  Eliminate the first two functions DAQmx.  Wire a constant task to the DAQmx Start feature.  See the little triangle down?  Click it, and it should show you the tasks he 'sees', the only one should be the task that you created in MAX.

  Note that 'Samples Visible' is now 'hard coded' in the task.  To get its value back out, you need to put a property node Timing DAQmx after the task start and pull on the quantity of the sample, samples per channel (which, for reasons that escape me, is a Dbl, you need to convert to an I32 before importing it into the while loop).

  Bob Schor

  P.S. Thank you to join your code.

• Use two assistants for the acquisition of data at the same time

  Hello

  I want to read multiple data channels of analog inputs on my DAQ hardware. However, when I try to create two separate data acquisition assistants for each entry, it gives an error saying "is reserved for the specified resource. The operation could not be performed as indicated "." Can't use two assistants for the acquisition of data at the same time?

  I have to add different channels in the same assistant DAQ? I tried, but I couldn't separate the data in different graphs.

  How does this work?

  Kind regards

  Allard

  You can't have multiple tasks of the same type (in this case inputs analog) on the same device.  Just so having 1 DAQ Assistant read all your channels and separate your channels for individual transformation.

• Multitask acquisition using NI USB 4432

  Hello

  Is it possible to perform tasks DAQ of tension HAVE (1) and (2) accelerometer at the same time using NI USB 4432?

  I am trying to program a LabVIEW GUI to read analog voltage and acceleration at the same time with the device. As the nature of the tasks is different, I put two 'DAQmx create Channel.vi' in the same pattern, with specifying one as 'I-voltage-Basic' and the other as "I-acceleration-accelerometer. When I run the VI, error - 50103 appears to help run the VI.

  Thank you.

  SH

  The USB-4432 has five input channels that share the same timing engine which means that they will share the same timing and synchronization. The five input channels are all part of the same atomic analog input on the 4432 subsystem. Even if the types of measure are different, you can add them to the same task. If you want to treat tension and acceleration differently (for each type of measure), index the strings in the array of channels acquired after your Read DAQmx.