Visualization of more values on the graph of the DAQ card

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• 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.

• Satellite P300-1EI (PSPCCE) - how to allocate more memory to the graphics card?

  Hello

  I have a laptop toshiba satellite P300 with this graphics card: ATI mobility radeon HD 3650.
  I want to allocate more memory for this graphics card. How could I do?

  I can't do this in my bios, I don't have this option...

  Another way?

  Hello

  Something like that is not possible because the graphics card driver it controls automatically.
  If the graphics card would need more graphics memory then the driver assigns the amount of necessary RAM automatically.

• BlackBerry Smartphones blackBerry Apps such as facebook and more stored on the memory card

  Hello!! This is my first post. Just bought my blackberry curve 8900 from t-mobile and I can't understand how to store my blackberry apps that are downloaded on my card instead of the phone's memory. I need help please

  Cannot do. The applications are stored ON the memory of the device.

  Now, if you want to disable and a backup application, you can do in AppWorld (for applications downloaded on the AppWorld) and re-install later.

  You can also use the software Aerize which stores the apps on the map in support, but install them when you are ready to use them.

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• selection of the daq card to get the angular position of 6 motors with encoder

  can you suggest me best daq card to use 6 positions of engines as outputs using encoders attached to the engines. I'll use single window for each engine. Or what can I use a single window for all the coders of engines?

  Hello Prabhakar7117,

  You need a counter for each encoder. Because you are going to use 6 encoders, you should get a DAQ hardware with 6 or more counters. Take a look at the PCI-6624 or PCI-6602. Another option would be a CompactDAQ chassis with modules that are able to access counters. Take a look at them.

  PCI-6624

  PCI-6602

  KB which cDAQ Modules can be used to access the counters of the shipped?

  Best regards

  Alina M

• How to use a switch connected to the DAQ card as a source of events in a Structure of the event

  Is easy using a switch on the front panel as a source of events. However, I like to use an external switch electrician on my card for the acquisition of data (NI PCI-6229) as the event source in the Structure of the event. Can anyone help?

  Happy New year to you too!

  Attached is an example in BT 8.5

  • It uses the time-out loop (running every 100ms) to simulate your reading of the data acquisition card.
  • A shift register is used to keep track of the previous value of the switch.
  • When a change of the switch is detected, the user event is raised and the display will show the new State.

  Running the vi with activated highlight performance can be useful.

  Steve

• How to give input to the DAQ card three times

  Hi all...

  How to assign three channels of entry (as Dev1/ai0, Dev1/ai1 and ai2/Dev1) DAQ card at the same time?

  Rd,

  Ganesh

  BMETTENT wrote:

  Hi all...

  How to assign three channels of entry (as Dev1/ai0, Dev1/ai1 and ai2/Dev1) DAQ card at the same time?

  Rd,

  Ganesh

  Use Dev1 / ai0:2?

• Recommendation for the DAQ card

  Hi guys, =)

  I m currently developing a project in a gas control, where I need Messure tempertures and be able to open and close a valve.

  My implementation are 4 termocouples and 4 relays to turn off the valves and...

  I was hoping if someone could help me choose a card of data acquisition for two things. where she has 4 analog for

  thermocouples and 4 digital (5v) output 4 relay. and be able to use them on the same card DAQ, USB PCI o preferably. or

  use a map of data acquisition for entry and one for exit.

  Thermocouples type K are...

  TNX in advance...

  Sincerely

  Luis Alonso

  Hi Luis,.

  How current are required by the relay? Is the combination of a cDAQ-9174and NI 9211 , NI 9401 sound like it might meet your needs? You can also focus on devices that have integrated relays, such as the NI 9481 or PCI-652 x.

  Brad

• Average value in a second a series of signals from the DAQ card

  Hello

  I'm trying to average signals in one second of my DAQAssistant.I am using a shift register to add all signals in a second interval and then dive out of the turn register by the number of iterations of my time loop (which I think should be the total number of samples per second-1). But when I studied the value of i from inside while loop by placing an indicator it always returns a value that is equal to my (sampling rate of DAQAssistant) / Samples as follows. This means that the average value I get something wrong, it is the average value seems within the reach of the signal I get.

  I wanted to use an array to store all the signals in a second, but I might have to increase the samples up to read the value in this case it will not be a very efficient way to store 500 data in a table.

  Any reclassification help how to get mean value over a cycle would be greatly appreciated.

  Thank you

  This is because an iteration of the loop returns a type of dynamic data that is under the hood an array of 100 samples.  The loop runs 10 times because you stop the loop after 1 second, only lasts only 1/10 of a second because she the 1000 Hz divided by 100 samples.  That's why I + 1 is equal to 10.

  Now you have 10 bays (buried in the dynamic data type) added.  Divided by 10 gets you the average of these 10 tables.  But this average is always an array (buried in DDT), but when connect you up to the average indicator, is to return only the first sample of average average array which is why your average seems essentially functional.  However, the averages of the other 99 data points (x iterations of the loop 10) are lost.

  You would be better off away from the DDT.  Just work with arrays.  Add the 10 tables to each other.  Now, you'll have an array of elements of a thousand that you can all wire to the average function in the range of statistics.  You won't have to worry about count the iterations of the loop, in summary and dividing.

  

• Output voltage continuous to the DAQ card provides a discrete signal

  I'm looking at the exit of a continuous decaying signal as shown below.

  

  (For now, let's assume that I must leave the Fs sampling frequency: 1000 and #s: 1000)

  In the loop where the signal is generated, I inserted a block 'Wait (ms)' so that iterations would maintain the good timing. If this is not the case, the speed of the iterations would be too fast. Although, when I measure the output to the BNC connector, the actual output is in discrete steps, which depends on the speed of the iteration. (for example, for the signal preceding with freq = 1/4 Hz, the result would still be 1V for two seconds, 0, 5V for a second and 0V for a second, then repeat)

  Is it possible to fix this?

  Before I tried this method, I had used the output of Wizard DAQ, which had no need of me having to insert the "wait (ms). But the problem with this method is that there is a delay between when the program has sent a message and when the output BNC connector has received the signal.

  I guess that the second method not released by discrete steps due to the buffer that is maintained in the wizard. I tried to have some sort of buffer to the first method, but could not because of lack of experience, I guess. If I could also, it seems that I could introduce a delay once again, which is undesirable.

  Any help on this would be appreciated. I will attach a copy of the article that gives me bad.

  Thank you.

  Mike

  As I said, the filter must be set up the EQUIPMENT. Just as an anti-aliasing filter on an analog input must be done at the hardware level, so a reconstruction on an analog output filter must be implemented in hardware.

  Sometimes robust filtering is necessary, but in general a simple RC works very well. Google 'Filter RC' or "low-pass filter" to get examples and design equations. Often the hardest part only is coming with good places for mounting of all.

  Mike...

• multi values in the unique setting in plsql

  Hi, I need your help... How you can pass multiple values in the unique parameter in a function?

  The values "AAA 1', 'BBB 2', 'CCC 3' should be passed to the same v_tipo_alerta of parameter, the values will be sent. based on the selection in the drop to the front screen The user can select one or more values in the list and these values must be passed to the procedure which will in turn passed to the WHERE clause of the select within the procedure. If I pass a single value, it works fine.

  Example of

  CREATE OR REPLACE FUNCTION FN_GET_ROWS

  (v_fecha_ini IN DAY,

  v_fecha_fin IN this update,

  v_tipo_alerta in VARCHAR2

  )

  RETURN TEST_TABTYPE

  AS

  V_Test_Tabtype Test_TabType;

  BEGIN

  SELECT TEST_OBJ_TYPE (DATE, NAME, ALERT( )

  BULK COLLECT INTO V_Test_TabType

  (Select date, name, alert)

  table

  Where DATE BETWEEN v_fecha_ini AND v_fecha_fin

  AND alert in (v_tipo_alerta)

  );

  RETURN V_Test_TabType;

  END;

  Please help me.

  Emanuel

  concatenate all use a standard separator, then use split() to bring back them to the unique variables.

• Adding values over the link to the column in the Apex

  Hello
  
  Is it possible to add extra or more values in the column link in the Apex. I have already 3 name of the column and the values associated with another report.
  .........
  For example: -.
  
  The column link:
  
  Text link: #COUNT #.
  
  Value name
  DATE #DATE #.
  PRICE #PRICE #.
  COST #COST #.
  .....
  
  I would like to add a name like 'ID' and correspondent and value #ID #.
  
  Help, please...
  
  Thanks in advance...
  
  Published by: user13561710 on January 10, 2011 09:20
  
  Published by: user13561710 on January 10, 2011 12:34

  Change the target in "URL".
  and set the URL as

  f? p = & APP_ID.:: &: NO::DATE, PRICE, COST, ID of SESSION.: #DATE #, #PRICE #, #COST #, #ID #.

  Replace properly

  CITY

• XW8400 Worksatation: install more memory for the XW8400

  What is the quantity of RAM MAXIMUM that can take the XW4800 workstation, I currently have 32GB I would like if possible at least double that to 64GM or even 128 GB, as I do massive CAD assemblies who are greedy memory

  Thank you

  Well this Did IS NOT CORRECT after I posted to this group I sent a request for assistance from HP according to page 5 of the 2009 edition of quick tasks, with the Core 5160 Intell Quad 3.00 GHz I can go up to 128 GB

  Memory NOTE: Dual Channel is only supported when the system is configured with DDR2 memory symmetric (i.e., 2 x 256)

  Configure for Notes of Support order (CTO)

  ECC DDR2 - 667 PC2 - 5300F Full Buffered DIMM CTO

  HP 512 MB (1 x 512 MB) DDR2 - 667 ECC FBD RAM

  HP 1 GB (2 x 512 MB) DDR2 - 667 ECC FBD RAM

  HP 2 GB (2 x 1 GB) DDR2 - 667 ECC FBD RAM

  HP 4 GB (4x1Go) DDR2-667 ECC FBD RAM

  HP 4 GB (2x2gb) DDR2-667 ECC FBD RAM

  HP 8 GB (4x2Go) DDR2-667 ECC FBD RAM

  HP 16 GB (4x4Go) DDR2-667 ECC FBD RAM

  HP 16 GB (8X2Go) DDR2-667 ECC FBD RAM

  HP 16 GB (8X2Go) RISER of RAM DDR2 - 667 ECC FBD supported ONLY w/double processors.

  HP 32 GB (16X2Go) DDR2 - 667 ECC RAM taken FBD supported ONLY w/double processors.

  HP 64 GB (16X4Go) DDR2 - 667 ECC RAM taken FBD supported ONLY w/double processors.

  HP 128 GB (16x8GB) DDR2 - 667 ECC RAM taken FBD supported ONLY w/double processors.

  I'm so Noah folloing place on it with another HP support Question to clarify ther information they provided

  This e-mail is in reference to the case number: [case number edited by moderator] .
  This is in continuation to our response with regards to your support request.
  Please ref the link for more information about the Memory cards supported on this unit on Page 5 and 6 .
  
  http://www8.hp.com/h20195/v2/GetDocument.aspx?docname=c04136962
  
  Thank you for contacting HP.
  
  Regards,
  [Name edited by moderator] HP Technical Support Engineer
  

• Channel of the DAQ (SMU-4498) task order

  I have an SMU-4498 for which I generate an acquisiiton task programmatically. When the task is created channel order is not necessarily in ascending order of channel number.

  My question is if the DAQ card will return the data in the order in which I defined the task or channel order?

  Thank you

  It seems that the answer is that channels must be specified in the order, when creating a task.

• The export of certain values of the graph xy to the worksheet

  Hello

  I'm newish to labview and I'm trying to extract the values used to draw the graph XY, but only for x = 0, 10... 90, 100... 360.

  instead of extract values 361, I only need 37. I tried to use another statement, but with no success.

  Any help?

  Or use the table decimate for each 10 value in the input array.

  Mike...