It is used to write a file in ansi to utf data format

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• what object to use to write uploaded files to the server?

  Hello

  My question is trivial, but I do not know how to solve. I need to download file *.xml server on my cell phone and write it on the mobile. There are input/output streams to read/write. OK, but what I should write the file I've already read? byte [] table? but I don't know what should be the size... cause, I guess I can't write data directly on my mobile? If Yes, can someone suggest me how?

  concerning

  Oh God, I'm so stupid! It's so http:

  _httpConnection.setRequestMethod ("post");

  _httpConnection.getResponseCode ();

  works great!

  concerning

• Saving the JSON files with Notepad in UTF-8 format causes error in Unflatten of JSON VI

  After doing a flatten to JSON and write in the text file, I open the file in Notepad and edited one of the fields. Then I registered under and marked 'UTF-8 '. The function JSON Unflatten fails with the 375003 error "the JSON string is not valid. The JSON strings must be encoded in UTF - 8 and must conform to the JSON grammar.

  I did change the numerical value in the field. Does Notepad save not a 'real' UTF-8 file? Someone else had this problem? Which makes it pretty hard to let users to change if the software cannot read it.

  Notepad adds a BOM header said at the beginning of the text file. This indicates a conscious drive UTF UTF type so boutien multibyte UTF encodings (e.g. UTF-16, UTF-16BE, UTF-32). Unfortuntaly notebook is so 'smart' to do it seamlessly and without any notification.

  If you use Notepad ++, or any other smarter text editor, you can avoid this problem of having this BOM autmagically added to the file to save.

  Basically, UTF - 8, you get three codes hexadecimal 0xEF, 0xBB, 0xBF at the start of the file. You can read the file yourself and check these three characters in this order and remove them if they exiist, before passing the string to your string in JSON format Unflatten and everything should be good.

  See here for more details on the UTF BOM.

• write file.vi worksheet with the data of type long

  Sorry my English

  I need to monitor and record data for three hours, power x time.

  I wish that every 1000 dry, a new file would generate and save the part of systems of measurement for three hours.

  is this possible?

  My idea is to have different parts of a single measure, the sets of measurement in theory would not slow down

  OBS: I use to write the file.vi worksheet to record data

  Thank you

  Your code is slow because you're constantly tables.  Whenever you add to a table, a new location of memory needs to be done to contain the table in its entirety.  This becomes very tedious when berries become large.

  Since you are using graphs, simply write the current values in the chart.  Now for the backup of the file, you should only open the file once before the loop and close once after the loop.  Inside, you want to use the string in array to worksheet and functions to write the text file to write data to the file.  It will be much more effective that completely overwrite each loop as you do.

  With these two patches, it is therefore no reason to constantly accumulate your berries.  So those spending records are not needed and get rid of some of these insert into table (which should really be table to build anyway).  Just write the last values anyway.

• Write backup files as reading takes place in the event of computer failure

  Hello

  My application involves sometimes to test outdoors.  We have a PC equipment and robust data acquisition.  I'm in the Northeast, where in recent weeks were cold and we had to do a test on the outside.  Long story short, in the middle of the test the computer shut down (probably because it was too cold for the computer according to the data sheet) and I lost all the data from the sensor.  The coomputer works fine BTW when I brought it back inside.

  The reason for which the data have been lost was because the program never completed and so the function that creates the data file has a chance to run.  Now, the data acquisition card, we used is very old and obsolete.  I am trying to upgrade the equipment with components or (PCI-6221) and a box of CSC-2345 with modules for two load cells load cells.  At the same time, I am writing a LabVIEW application that improves the old, obsolete program.

  I want the application to write a file in spreadsheet with all the information of the sensor continuously as the test proceeds in the event of failure of the computer midtest.  In this way, I at least have some saved data.  I explained all this to another engineer here and he says that he cannot make this way at high sampling rates (I want to run the program at 1 kHz for 60 seconds).  His reason was that the writing on file screws up the waveforms that we measure because the file must be opened, the data gets written and then closed for each line of data points.  He argues that the resources of the computer will be linked up as it tries to write the file while the program is data acquisition and store these data in a buffer.

  So my question is: what is the recommended architecture to write a backup file as a test occurs with a high (1 kHz and 10 kHz) sample rate when the computer shuts down or some other failure?  Also, what are the limits of performance when writing data to a file within the same line as the VI 'read '?

  Thank you.

  Rate from 1 to 10 kHz are in fact rather slow. You can use an architecture of producer/consumer to save text files, and there is simply no reason to open and close files permanently. With DAQmx, you can listen directly to the disk at much higher rates.

• Cannot use yyyyMmmdd as date format

  Hi all
  We are at the OPA/OPM 10.2
  
  I would use a format such as date 2011 Sep 07 on a determination of web
  It worked for me in Phase 1 with an earlier version of OPA, but now we are in Phase 2
  
  My modules has a GB
  My messages.en - GB.properties file has a line
  entry-date-formats: yyyyMmmdd
  and
  format-release date: yyyyMmmdd
  
  No work, as well as variations such as yyyy-Mmm-DD yyyyMMMdd
  It still requires the format dd/mm/yyyy
  
  Any suggestions?
  
  Thank you
  Allan

  For OPA 10.2 or later version, it is the region setting in the project which determines the formatting of dates, not the language. For this reason, the settings that were previously in every file of properties of messages are now supported only in the application.properties file, as this setting overrides the regional settings in the form of virtual machine JAVA or .NET framework.

  You can consult the section "Files of Configuration Web determinations" in aid of the OPA 10.3 Developer:

  http://download.Oracle.com/docs/HTML/E24274_01/content/technical%20Reference/Config_Files.htm

  BTW the "yyyyMmmdd" format is not sensible. It displays the date ISO '2011-09-08"as"201190008"because"mm"refers to the minutes (see http://download.oracle.com/javase/1.5.0/docs/api/java/text/SimpleDateFormat.html). Assuming you want it to be registered and indicated as '2011 Sep 08' then the format should be "yyyyMMMdd.

• How to write a file using BB 10 HTML5WebWorks

  Hello

  How to write a file using Blackberry 10 HTML5WebWorks API.

  https://developer.BlackBerry.com/HTML5/API/BlackBerry.IO.file.html#.SaveFile

  The example above does not work in BB 10.

  Please guide me.

  Of course, look at line 95 of this file:

  https://github.com/BlackBerry/BB10-WebWorks-samples/BLOB/master/invoke/invoker/invocations.js

• Read/write PDM files

  I'm looking for TDMS files as a way to save disk space for long trials.

  I have trouble finding a clear tutorial on how to write several channels (but I think I got including this one), but more specifically, how to read several channels on a sort of a waveform graph. My research did not give much.

  Is there a better data format to use?

  Rick

  Talk wrote:

  So if I understand well to do a PDM read function for each registered channel?

  No. one is the reading of many channels.  In this case it receives all channels waveform data in the data group measured.  You could also provide an array of channel names if you want to be more specific.  But all channels from a single reading must be of the same data type.  That's why the other two readings are separated.

• Problems of non-sinusoidales waves «Write to file»

  Hi people,

  I have a problem with "writing of the waveforms to file". Is attached a very simple vi which gives the error message: "error 4 has occurred open the file...". LabVIEW: end of file encountered. NOR-488: invalid argument or arguments to the function call. »

  It gives this message that I put in a new file or name of one that already exists.

  The last part is rather confusing because I do nothing with GPIB.

  I found this article in the knowledge base, but is not the same case, because it is the first time I address the file:

  http://digital.NI.com/public.nsf/WebSearch/0576444C8FD4DC0F86256E83007FA540?OpenDocument

  It's Windows 7, SP1 2013 LV.

  Any advice would be much appreciated!

  In the examples provided with LabVIEW, there is one that should be useful waveform - wave write to FIle.vi

• The additional write custom file VI data feed

  I'm working on a program that will record data thermocouple (NI9213) as well as some power data from some DMM. For the moment, I have thermocouple data, being introduced in VI 'Write in a file as' and I write current and power in a separate using scripture to VI file file worksheet.

  What I'm looking for is a way to combine these two in a log file. Is it possible to add these additional variables in the data from the signal arriving at the writing on a measure VI file? If this isn't the case, ideas on how to merge the data into the file only newspaper would be greatly appreciated!

  
  

• Based on file format is not write to file, if there is an error defined by the user?

  While using the function in file to create a text file of some test results, I've noticed that if there is an error format on the error stream VI seems to work fine, but the Format of the file function is not actually write data to the file. I never noticed this behavior in Labview on any another function while if there is an error in this function does not work. As a general rule, if I don't want to run a section of the code when there is a mistake I have to surround themselves with a case statement and run the error stream in the case selector ignore.

  I've noticed this in a test application where I generate set errors when certain failures occur during my test, but I'd like when even the application to write my log file no matter if there is an error of no. In this case if my defined errors occur it does not write a log file. I deliberately to clear all errors before calling my VI of logging that I really don't want to do.

  So my question is why this behavior is present in the Format based on file? If it is expected that behavior are there other features that this happens with that I don't know everything?

  I have attached a VI that illustrates this behavior.

  The vast majority of the functions with an error to not not run if an error is present. In General, if a function runs with an error (i.e. close VISA), noted in the help it works even with a mistake.

• Write to file path control

  Hi all.

  I was wondering if it is possible to write to a file of trajectory control. Right now I use control path of file for selectable modules that is then written to a configuration file. From the beginning, I want the config read to write in the same path of file control. Instead, I have to read the configuration of a path of the file indicator file instead which is not ideal. Is it possible that I can write directly to the file control?

  Select this option.

  Right-click the control on the front panel, then select Create the local Variable. Then, drag this variable in the same place you have the led terminals. This will write the value in the control.

  

  You will hear many people say that you should avoid local variables (race conditions, hard to debug, etc.), but in this case, they are OK. I use all the time to initialize my UI to a config file.

  P.S. Did you put more thought into rewriting the code?

  P.S.S. you took my picture at the school 15 years ago?

• How to use 'IMAQ Write queue'

  I want to use 'IMAQ read the file' and 'IMAQ write File2' to read, view and save an image, but I don't know how to use the file 'IMAQ Read' and 'IMAQ write File2', please give me some examples, thank you very much! (I use LabVIEW 8.5)

  

• LV RT 2009 write a file on hard disk PXI OS Pharlap converts \n \r characters

  I know, in LabVIEW help, it is said that the 'end of the line constant' in the channel palette is converted into the "end of line platform-dependent value", but where does say that the 'carriage return constant' (\r or ASCII 13d) is converted to a linefeed (\n or ASCII 10 d) on the same platform?

  I was debugging a process on my 1044 PXI chassis with embedded controller PXI-8106 running LabVIEW 2009 and created a simple text log file based for this purpose, using the 'end of the line constant' (what some people would associate with a combination of \r\n, or as I like to put it, [cr] [lf]) to delimit each row added to the file.  I was a bit surprised to see the lines delineated with the line break (\n, ASCII 10 d) instead, but not too surprised because of the opposition in the help to the substitution (for "end-of-line") on some platforms.  However, when I wrote in the file help of characters in the string to the palette of the concatenated string to a newline immediately followed of a line, I was surprised to see the combination of characters replaced in the file each time with a single power line.  I then experienced and tried to use just a single \r to delimit lines but even single \r ([cr] or 13d ASCII) characters are converted to \n (ASCII 10) characters. I now use the line break (\n) to delimit the lines in the file, but why a \r cannot be used in a text file on this platform?

  This is the expected behavior?  If this isn't the case, someone else experienced and reported this NC?  If this is the case, when it is mentioned in the documentation?

  Bill

  Bill,

  No worries - I'm still here.  I was just doing some research on my end.  You have accidentally unchecked option "EOL convert' to 'Write to File.vi text' and 'reading of text File.vi?  (Right-click on the VI and uncheck this option.)

  These explanations are available in the corresponding help files:

  Write to text file feature

  «This function adds platform end of line (EOL) characters in the elements of a table even if you right-click the service dependent and remove the check mark next to the menu item contextual EOL convert .»

  Read from text file function

  "The function converts all characters in end of line depending on the online platform of linefeed characters, except if you right-click the function and remove the check mark next to the menu item contextual EOL convert ."

  Kevin S.

  Technical sales engineer

  National Instruments

• How to put more than 100 acquisitions to "write text file.vi?

  Hello

  I work with labview for about a week and I need help.

  I use the "write to text file.vi" in one of my screws and now I've discovered, that the number of acquisitions in this VI seems to be limited to 100.
  but I need a larger number (around 10,000). So I need to know how to increase the number.

  If you need more information, tell me and I've got the poster!

  THX
  Fr33k

  Propably the control's properties from the beach.

  Right-click on the control and select Properties. Then go to the tab of the range.

  Felix