Data DAQmx finished

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• How to get the timestamp of data DAQmx Read

  Hello

  I have to read 4 analog channels using DAQmx AI read in LabVIEW 2012. I am using screws DAQmx.

  Acquisition rate is 4000 samples per second, and the number of samples per channel is 200.

  I use only one task DAQmx to read the data. I get 4 data tables for 4 channels each table length is 200, every time, DAQmx Read happens.

  But I want to get the seal of these 200 samples per channel. How to get the seal of these samples, made me know.

  Thank you

  You have not indicated your code. If you choose to read the waveform data, the cluster includes t0 and dt. That's all the information you need.

• 6036E PCMCIA + DAQmx (analog input) seems to only read in blocks of 512 samples of data

  Hello people,

  I ask this question before I post any code or software versions etc to see if there is a simple answer.

  I use a PCMCIA card 6036E to read an analog input channel (DAQmx... i. e create task, create the channel, set the altimeter (continuous samples), task, read in a programmed software loop while (ASAP)).  No matter how I put my sample rate, number of samples per channel (i.e. size of buffer), or the number of samples to be read, it looks like I can get multiples of 512 samples.

  Here are some samples freq (Fs), the 'number of samples to read' asked and the actual number of samples read:

  FS numberOfSamplesRequested numberOfSamplesActuallyRead

  200Hz   20                                                 512

  1000 1024 5000Hz

  2000 2048 5000Hz

  QUESTIONS RELATING TO THE:

  1 is this 'normal' behavior a 6036E PCMCIA card?

  2. in the case, has anyone who may have seen this problem determined the cause and how to "fix it"?

  Best regards

  Chris

  chassan wrote:

  Hello people,

  QUESTIONS RELATING TO THE:

  1 is this 'normal' behavior a 6036E PCMCIA card?

  Sort of.

  2. in the case, has anyone who may have seen this problem determined the cause and how to "fix it"?

  Best regards

  Chris

  Systems PCI DMA is used to transfer
  the data, daqmx and receive messages when the number of samples are
  acquis. Now on PC-card that does not work and the data is transferred
  When the edge buffer is full (after 2 k of data) to 2 channels
  10 Hz, it can take some time.
  There is a work-around, there is a property where you can set the transfer mechanism (I have not daqmx on this PC), or the daqmx polling mechanism. Try these.

  Found a document KB.

  Tone

• Corrupted data recovery water Iphone 6

  We know anyway to get data of an Iphone that does not turn on?

  I am desperate to get my photos from my broken phone and a loan to pay for it, but I do not know if everyone can do?

  The photos I want are not saved on icloud to bring from the phone itself are the only way.

  However, it was damaged more than a month there are water and did not put in operation since

  Thank you

  The bottom line is not. You can pay a ton of money for a service of data recovery, but it is useless with the encryption using the iOS and the iPhone with your data. All what they will recover is meaningless strings of gibberish, not files and with no way to decipher gibberish it's worthless.

  Sorry, but that the data is finished now.

• The irregular sample in PDM data storage

  I have a request where I capture data (DAQmx) waveform of several cards of analog interface as I am data capture irregularly timed to an Ethernet network.

  The irregular data comes in as an array of values from layer to about 250 Hz with each sample set precisely time-stamped.  Synchronization between the sample is so important so that these data cannot be stored as a waveform.  It should be kept as an array of pairs of channels/timestamp or timestamp value / (array of string values).

  DAQmx data, of course, are given waveform with only the timestamp and necessary delta departure.

  Then, there are suggestions of popular community (recommended ways) of:

  1. Set a TDMS file for irregular data
  
  
  2. Create a single TDMS file for irregular data and DAQmx waveform data in a common format

  Thank you

  XL600

  In this case I used my first string be 'Time' and it is stored as an array of timestamps, where every hour is a value on this index to another channel.  There is a function in the LabVIEW on waveform palette which will take a waveform and generate all the times associated with the values Y.

  Oh and so I usually have a new group for each sampling frequency, then you might have DAQ as a group at a rate that is regular, and there a Time column, and another group might be called the series that has a column of data and time to a non-regular rate.

• Using include data for a sequence

  All-

  I do not know my terminology is bad here so let me explain what I want to do. I would like to follow a com port and when the data flow happens things like analyze, draw, send to the indicators and write the data to a file. I built a series of cases to make each of the tasks in sequence. I need neatly nice to start the sequence when the data are finished coming and then wait for the next data transmission. The data are coming about once per minute. Unfortunately, for the moment, data will not come to 1200 bps, so transmission takes about 3 seconds. I think that an event structure would work, but I have no idea how create/use dataflow on the experiences to start the sequence. Thanks in advance for the help.

  [email protected] (Scott)

  ssmith490D wrote:

  I tried to use the time-out on the vi "Set up the Serial Port" but it did not work very well. The example uses a property with playback function node. How this time-out period differs from the Config Ser port. "time-out feature? Thank you.

  Scott

  I don't know what example you speak here or what property with playback function node you are talking about.

  How is it, you have 60 000 cable for the node property for the data bits?  The setting is valid only for who is 5-8.  And the only probable parameters would be 8 or 7.  I think you have that the definition of confused with the timeout.

  I would recommend opening your port configuration settings only once during the initialization of your state machine and series.  Close the port that once in a framework which occurs once only when you stop the program.  In the meantime, you simply wear the VISA reference through the loop through records shift.

  (Actually you should use much more shift registers.  You rely too heavily on local variables to get data from one State to another.  It could possibly cause problems on the road).

  Your architecture is now technically a state machine, but basically just a step above a structure plate sequence.  You can use decisions to determine what code to run then.  See the attached screenshot.

  

• Full scale PXI - 6254 DAQmx Analog Input

  Hello

  I use PXI - 6254 Board to read the analog inputs. Configured channels using DAQmx create Channel.vi with sub parameters.

  In the configuration: CSR

  Min: 0

  Max: 10

  Units: Volt

  I read the channel using DAQmx Read U16 2D with the sample of 1. I expected below the values.

  data of 0 v = 0

  10 volts = 65535 data

  but it gives 10 volts = 31544 data. Please let me know why.

  If I set up the channels with the settings below:

  In the configuration: CSR

  Min:-10

  Max: 10

  Units: Volt

  He always reads the same values (data 0 v = 0, 10 volts = 31544).

  Please let me know, how I can get 10 volts = 65535

  Thank you

  Hi LVTestek,

  The PXI-6254 is not an interval 0 to 10 V input V. The specification of 625 x OR lists the available input ranges:

  Entry level of ± 10 V, ± 5 V, ±2 V, ± 1 V, ±0, 5 V, ±0, 2 V, ±0, 1 V...

  When you set Min = Max 0 = 10, DAQmx chooses the smaller input range that allows to measure signals between 0 V and 10 V without clipping. On the PXI-6254, the smaller input range that meets this criterion is the range of ± 10 V, where - 10 V corresponds to-32768 0 V corresponds to 0 and 10 V corresponds to 32767.

  However, there is an additional complication: ranges entry on M Series devices are slightly wider to accommodate the software calibration. Otherwise, gain of a device could reduce the scope of actual entry, and offset error would move the ends of the effective input range. If the [-10 V...] 10 v] range on your PXI-6254 could be more like [-10.3 V...] 10.4 V]. 10 V is actually to 31544, rather than 32767. On another PXI-6254, 10 V could correspond to a different value of gross / scaleless and 31539 31552.

  Another side effect of calibration of the software, is that the data returned by the flavours 'raw' and 'no' to the VI DAQmx Read are benchmarked. The KB explains further: is raw data DAQmx calibrated or chipped?

  If you can modify your application to use one of the flavors "on the scale" (F64) VI DAQmx read, which should save a lot of effort. If not, could you explain why your program requires readings without scales/bullies? The right approach depends on the requirements. For example, if you want to save the data in a file and you need to reduce the file size by using raw data / scaleless, configuration DAQmx to save data directly a TDMS file can meet your needs. If you update an older application to work with DAQmx and M Series, a different approach may be more appropriate.

  Brad

• How to get the data Render completed in Browserfield2 event?

  Hello

  I shows loading screen when the user open the browser and if all data make finished at this time near if loading screen anyone know how?

  Here are two articles that I think will help you.

  http://supportforums.BlackBerry.com/T5/Java-development/BrowserField-sample-code-using-the-BrowserFi...

  http://supportforums.BlackBerry.com/T5/Java-development/how-to-track-progress-of-page-loads-in-your-...

• Utility outlineload: import the outline but not the read data

  Dear all,

  I'm trying to load a contour for the dimension "account" charged to utility contour.

  My problem is no data is read from the CSV file, but the header is good rocognize.

  When I use these utilities for extraction, all right.

  I use this command line:

  CD C:\Oracle\Middleware\user_projects\epmsystem1\Planning\planning1

  OutlineLoad A:SGAE1 U:admin /D:account /I:C:\accountMbrsSGAE.csv /L:C:\accountMbrsSGAE.log

  
  

  You can find the file, what I'm trying to import for test: https://www.hightail.com/download/bXBad0VPUzdoeWJxYk1UQw

  Member '6499U' already exists.

  
  

  Below the details of executing cmd:

  
  

  Enter the password:

  Local planning: en_US

  using java.library.path: C:\Oracle\Middleware\EPMSystem11R1/products/Planning/li

  B64

  EPM_ORACLE_HOME (C:\Oracle\Middleware\EPMSystem11R1) has the value of property FMV 'E '.

  PM_ORACLE_HOME ".

  using the property of Java for Hyperion home C:\Oracle\Middleware\EPMSystem11R1

  EPM_ORACLE_INSTANCE (C:\Oracle\Middleware\user_projects\epmsystem1) is located in

  Property FMV [EPM_ORACLE_INSTANCE].

  EPM_ORACLE_INSTANCE (C:\Oracle\Middleware\user_projects\epmsystem1) is located in

  Property FMV [EPM_ORACLE_INSTANCE].

  EPM_ORACLE_INSTANCE (C:\Oracle\Middleware\user_projects\epmsystem1) is located in

  Property FMV [EPM_ORACLE_INSTANCE].

  Affecting Mode of HBR: 2

  In lookupBRLWA()

  Found product HBR = ESSBASE_PRODUCT

  Found product HBR = ESSBASE_PRODUCT

  Found product HBR = ESSBASE_PRODUCT

  Component of HBR LWA = default

  Default HBR = http://EFHINTRAP19.Gen.eu.MDS.Honda.com:19000 / eas

  In getDBDetails()

  Found product HBR = ESSBASE_PRODUCT

  In lookupBRLWA()

  Found product HBR = ESSBASE_PRODUCT

  Found product HBR = ESSBASE_PRODUCT

  = 2015 04-16 13:57:06, 312 WARN main com.hyperion.hbr.security.HbrSecurityAPI - Er

  ROR user recovery by identity

  -Error recovery of user identity

  Initialized embedded HBR.

  Support RTC Essbase Version: 0xb1210

  List rental task Reaquired: Thu Apr 16 13:57:09 CEST 2015:1429185429479

  [Thu Apr 16 13:57:09 CEST 2015] Failed to get analytical information and/or by

  form a data load: cannot find specified load dimension 'account' in 'SGAE1' a

  application.

  [Thu Apr 16 13:57:09 CEST 2015] Failed to get analytical information and/or by

  form a data load: cannot find specified load dimension 'account' in 'SGAE1' a

  application.

  [Thu Apr 16 13:57:09 CEST 2015] Planning of vector data store finished loading processes

  exceptions: records not all input have been read errors (or a vacuum in)

  put the files). 0 data records were read, 0 data records have been processed, 0 were successful

  ssfully loaded, 0 were rejected.

  
  

  I use hyperion Planning Version: 11.1.2.0.858
  

  
  

  Thanks in advance for your help, I do not understand why block the process.

  
  

  Kind regards
  

  The utility can be sensitive to the case so if in your application, it is not account and account use the following syntax:

  OutlineLoad A:SGAE1 U:admin /D:Account /I:C:\accountMbrsSGAE.csv /L:C:\accountMbrsSGAE.log

  Your file also has number of spaces that you may want to remove.

  

  When the file is loaded, you will see the following error:

  "Exchange rates cannot be None if the Data Type is currency.

  See you soon

  John

• OutlineLoad utility not only loading text or dates in Hyperion Planning

  Good afternoon

  I tried several times to use the Outlineload utility to load the text and dates in an unsuccessful planning application. I use the Version of EPM: 11.1.2.1. Here are the steps I took:

  1. in EPMA, created a new Member, CommentsText, under the accounts dimension and all its data type 'Text' and then deployed the application.

  2. has created the following source file:

  Pilot Member, value, perspective, loading data Cube name

  CommentsText, go to my comments, here, ' Jan, FY10, USD, real, Final, C101 ", BUD_IS

  While preparing the source file, I made sure all the dimensions were represented by one member at the lower level.

  3. I ran the command below to the DOS command line:

  OutlineLoad S:Localhost A:PLN_GAL /U:admdem / m /I:d:\temp\loadtext5.csv /TR /L:d:\temp\Outlineload-log.log /X:d:\temp\Outlineload-exceptions.exc

  See the command to run successfully. This is what the log file:

  [Thu Sep 26 19:16:36 CDT 2013] Input file located and opened successfully "d:\temp\loadtext5.csv".

  [Thu Sep 26 19:16:36 CDT 2013] Record header fields: pilot Member, value, perspective, loading data Cube name

  [Thu Sep 26 19:16:36 CDT 2013] Finds and uses the 'OFADataLoadDimension' size for loading the data in the application 'PLN_GAL '.

  [Thu Sep 26 19:16:36 CDT 2013] The parent-child command option (switch/h) will not be performed: this option is not available for the dimension "OFADataLoadDimension."

  [Thu Sep 26 19:16:36 CDT 2013] Member from input command (switch/o) option file will not be performed: this option is not available for the dimension "OFADataLoadDimension."

  [Thu Sep 26 19:16:38 CDT 2013] A refresh of the cube operation will not be run.

  [Thu Sep 26 19:16:38 CDT 2013] Create filters for safe operation will not be performed.

  [Thu Sep 26 19:16:38 CDT 2013] Look at the files of newspapers of Essbase to status if Essbase data have been loaded.

  [Thu Sep 26 19:16:38 CDT 2013] Planning of vector data store finished loading processes. 1 data record has been read 1 record of data have been processed, 1 has been loaded successfully, 0 is rejected.

  But even if the log indicates that the comments were written, no text is written!

  Two possible problems, I've noticed are:

  1. the logs says: "located and using"OFADataLoadDimension"dimension for the loading of data into the application"PLN_GAL" I don't know what can be the dimension "OFADataLoadDimension."

  2 even if I put the text in EPMA data type, the data type is NUMERIC - NOT TEXT and more once I have deploy the application and check with the console service Regional. This blows my mind. I don't know why this is happening.

  Can someone please help? I tried A to Z for 2 days without success.

  Thank you!

  Luis

  I suppose that you have set the order of evaluation in EPMA - Parameter Data Type evaluation order

  To be honest that I have not used the utility outlineload to load the data when planning is EPMA mode, only in classic mode, in theory, it should work as it isn't metadata and data but not something that I tested.

  See you soon

  John

  http://John-Goodwin.blogspot.com/

• determine what httpservice is finished loading

  Hi, I have a small dilemma, get the list of countries for a form I have, from a database, but I can not set the selectedindex property because of its delay in loading data, is it possible to know when the data is finished loading and perform a function then?

  When you define your service request put a result in this handler. Flex calls your result handler when it is finished.

• How to abort Continuous Acquisition (which is set to acquire a constant number of samples per channel each iteration)?

  Hi all

  I would like to continuously acquire an input channel analog and, if necessary, be able to stop the acquisition as quickly as possible.

  I use a card NI USB-6289. I implemented a DAQmx (voltage) analog input task, set the clock sampling DAQmx 'continuous samples' and the rate required (IE 1000, which is 1 kHz). For the acquisition, I used a while loop with inside the DAQmx Read with Terminal 'number of samples per channel', wired (IE 1000). The while loop waits until 1000 samples are acquired and therefore continuously reads the channel in uniform batches of 1000 samples every second ticking. The while loop can be easily interrupted when the DAQmx has completed the acquisition of the lot being 1000 samples, but it takes the DAQmx finish their current task.

  My problem is how to stop the loop while the DAQmx Read lies in the middle to get 1000 samples WITHOUT delay all 1000 samples are received? Is it possible to interrupt the DAQmx Read?

  I could reduce "the number of samples per second", increasing the responsiveness of the while loop, but this is not the solution I prefer. I tried to destroy the task (outside the while loop), but that does not stop immediately the acquisition, Read DAQmx still finish acquire 1000 samples. I've included an example Subvi. When I was using a PCI card, I used a timed while loop with inside the DAQmx Read with Terminal 'number of samples per channel' wired-1 (= which means ' read everything in the buffer "). In this case, it was easy to stop the acquisition at any time: the timed, while the loop is abandoned and the acquisition has ceased immediately. But it does not work with an NI USB-6289 map (see thread http://forums.ni.com/ni/board/message?board.id=170&message.id=386509&query.id=438879#M386509) because of the different way the data are transferred to the PC.

  Thank you very much for your help!

  Have a great day,

  LucaQ

  Hi LucaQ,

  Your solutions are decrease of the number of samples, or record the time you want to stop and remove samples that have been acquired beyond this time. There is no other way to stop the actual reading out of the hardware store.

  Flash

• What DAQ for my project? USB or PCIe?

  Hello

  We want to make measurements with > 200 kech. / s for all about 5seconds maximum sampling rate.

  We operate a DMD that sends a trigger signal data acquisition at the beginning of the measure.

  Everything is done in C++, Windows7 64 bit.

  So my questions:

  What DAQ we should buy:

  • NOR-USB-6211
  
  
  • NOR-USB-6281
  
  
  • NOR-PCIe-6321

  And if the FiFo data acquisition memory is 4096samples does that mean? What happens if the memory is full? All data are transferred to the PC? Will there be a lack in action? Us are out of sync then?

  ben3000 wrote:

  What DAQ we should buy

  I would go with PCIe via the USB port on any day of the week.  USB has headaches when in a permanent situation.

  ben3000 wrote:

  And if the FiFo data acquisition memory is 4096samples does that mean? What happens if the memory is full? All data are transferred to the PC? Will there be a lack in action? Us are out of sync then?

  The stamp on the card is only 4096 sampels.  If the memory is full, you will get a buffer and data overrun error will be replaced before you get to it.  The solution is to continually read data (DAQmx Read) and store this data somewhere in your program (a table variable).  For example, read all the current data acquired every 100ms.  This will help keep the clear buffer.

• analog calibration on PCI-6221

  I don't get the volts per bit, I expect my Board of PCI-6221.

  I run the "Test Panel" available in v.4.3 Measurment & Automation Explorer.  I have a NOR-6221 multifunction with an installed interface BNC-2090 case.  When I run the "analog input" test, with entries dfferential and connected to ai8 ai0, I expect to 0 volt. The input values, the min max run defaults to-10 V + 10 V.  The graph shows zero + - 1 to 2 bits of noise.  See screenshot. The reported real amplitudes are + 0.000468, + 0.000144, - 0.000180, - 0.000504.  This corresponds to 0.000324 V/bit.  I expect to 20V / (2 ^ 16 bits) = 20V/65536 bits = V/bit 0.000360.  How to explain that gap of 10%? Thank you.

  Bill

  Hey Bill,.

  I could see a few things: with the M series, realize that the data returned by the ADC are not linear, so that V/bit varies over the range of the acquisition. Mcal allows us to correct the non linearity. Which may explain the discrepancy just here. Also note that the range is actually greater large - to make cal the range desired, some codes are outside the range of V 10 - generally of 5%. However this would actually push the V/bit upward. This is mentioned in the M-series user manual in the section of the analog input range . All this is taken into account absolute accuracy specifications so that they are still valid.

  Finally, when I calculate 20/65536 I obtiens.0003052 - which, once I multiplied by 1.05 gives moi.0003204, which looks a lot better. You may have swapped the 6 and 5, or the Windows calculator is fibbing to me once again

  So this brings me to my question - you notice the difference just theoretical vs measured and I was wondering what is happening, or you plan the use of this info? If you are looking to read binary (a common practice results in questions like yours), take a look at this KB when you get to the scale of calibrated data-

  3SKGA409 Ko AE: is raw data DAQmx calibrated and/or scaling?

  Hope this helps,

  Andrew S

• Programming of the event with digital I/o

  A Structure of the event can be used with digital I/o?  All the examples I've seen show the Structure of the event used with the keyboard or the mouse.  But have not found many examples showing the Structure of event used with digital input.  I'm mainly looking for a link to an example. But you can provide any help will be appreciated.

  Howard.

  Yes, you can register events DAQmx.  Look in the IO position-> data DAQmx-> Advanced-> palette of events acquisition DAQmx to start, or search for events DAQmx.  All DAQmx devices support events of change detection, which is probably what you want if you have the digital I/o, in order to verify that it is supported by your device.