Basic visa write and read the example

Similar Questions

• error timeout on write and read VISA

  I'm having problems of error timeout with a VI who just writes and reads the necessary data and will be eventually added as a Subvi. Everything is set up the same as my camera. I tried to increase the timeout for the session, but it does not work and I don't know what else to try.

  Any help would be appreciated!

  The \r is the termination character (carriage return) and YOU set the constant/control channel for------display Codes. It is a right click option.

  The driver is located by help > find the instrument Drivers. The driver page main has links on what makes a driver is and how to use a.

  http://www.NI.com/downloads/instrument-drivers/

• NEITHER the 6602 write and read frequency

  Hi all

  I have NEITHER 6602 calendar card and I am trying to use it to write and read from the

  DAQmxWriteCtrFreq (taskHandle1, 0, 1, 10.0, DAQmx_Val_GroupByChannel, & freq, & duty, & writtenVal, 0);

  and

  You should have the following sample installed on your PC that can help you in this task: DigPulseTrain - Cont.prj (it could be found in \program files\National Instruments\CVIx\samples\daqmx\counter\generate pulse folder)

• Write and read files 8859_1 but miss char

  Hi all!
  I tried to write heart (♥) tank in a text file on Windows, but to re-read when the return was a question mark (?).
  
  I wrote and read with codes like:

  String iso = "8859_1";
  
  [...]
  BufferedWriter bufferedWriter = null;
  try {
       bufferedWriter = new BufferedWriter(
            new BufferedWriter(new OutputStreamWriter(new DataOutputStream(new FileOutputStream(file)), iso));
  } catch (FileNotFoundException e) {}
  
  [...]
  BufferedReader bufferedReader = null;
  try {
       bufferedReader = new BufferedReader(
            new BufferedReader(new InputStreamReader(new DataInputStream(new FileInputStream(file)), iso))
  } catch (FileNotFoundException e) {}

  What is wrong with him?
  
  I'm worried because I want to write the encrypted text in the future... and so I'm worried I may lose some data if encrypted text includes characters that are not written / read in the right track to be decripted!

  Patcha wrote:
  Hello.
  Sorry to get back to.
  I want just one last question (somewhat strange)...

  Is there a way to simulate a write and read entry and exit flows without actually writing a file?

  The javadocs are your friend, you know. If you check out the javadoc for InputStream for example:

  http://docs.Oracle.com/javase/7/docs/API/Java/IO/InputStream.html

  Check out the "direct known subclasses. I'm sure you're smart enough to not need more than information to determine what your options are. You just need to know where to get information!

  And of course, there is no one stopping you to create your own stream of input/output 'false' when there is no option :)

• Find and read the worksheet file target of target folder

  I'm trying to find and read the worksheet file target in the target folder. Help, please. Thank you.

  

  Build Path VI will solve the problem.

• I want to open and read the tax document encrypted from my class last year, how can I do?

  I want to open and read the tax document encrypted from my class last year, how can I do?

  Do you remember the password?

  Did you change your computer, or reinstall Windows after you saved the file?

  What version of Windows you have now?  And what version you have when you saved the file?  Specify the service pack level.

  How do you encrypt and save last year?

  What tax preparation software you use?

• If I put a restriction of password which only allow customers who purchase print it (no copy or modification of the document) have an impact on the quality of the file when people open and read the file on mobile devices like phones and tablets?

  If I put a restriction of password that only allow users who buy to print it (no copies or the modification of the document allowed)-it will have no effect on the quality of the file when people open and read the file on mobile devices like phones and tablets?

  Some mobile devices won't be able to open it at all, but if it is open, the quality is not affected.  Please note and understand the warning you get when you set security: indeed, it is largely ignored by many apps.

• At the same time perform write and read

  Hello

  I use
  DAQmx NOR-USB-6259

  I have problem with parallel
  run the analog signal (for example 1000 points of writing
  by 1 second) channel Dev1/ao0 physics and at the same time read
  1000 points per second physics channel Dev1/ai0 1
  How to do this?
  I tried to use DAQmxExportSignal, but it does work well, or simply, I
  don't know how to do
  correctly maybe I should use a different
  the function?

  Best regards

  AndrzejS

  Hi Andrzej,

  Yes, it's possible, but with your device not at the same time, just with a little delay (about 1 US).

  The track is almost the same thing, you need to add 2 more channels of analog inputs to your task and use playback of multiple samples. Just check the VB Clk Acq - Int example.

  I can't help with particular code, because I'm not familiar with VB, but daqmx functions are very similar, if this change is 3 click in LabVIEW, then it must also be very easy in VB. You manage tasks, if your task contains more channels HERE you will receive samples of all channels.

  I hope this helps and let me know if I misunderstood something.

  Gabor

• Write and read data from the user's local file system

  Hello

  I write my first extension for dreamweaver. My extension should backup the data on the local file system of the user. I know that I can use DWfile.read () and DWfile.write () as described in Chapter 2 of the Dreamweaver API reference. I store the data using the XML format. What is the best way to read and parse the XML data in the file? What is the best way to write the XML data in the file?

  If you recommend one format other than XML, I'm open to suggestions. The data are only a few configuration information for the extension which should be persisted.

  Thank you

  mitzy_kitty

  How will the data be used? If it is used by JavaScript, use JSON format which includes js. If you use XML, then you will need to find an XML parser to read the data.

  Randy

• Writing and reading the same excel file

  Hello.

  I wanted to write a few values in the excel sheet and after doing some math here I want to read the same file.

  Can I do this? Or there is a better way to accomplish the same task.

  Kindly help.

  Thank you

  To do this you don't need a file. See the attached example, I guess it will work

  

  

• Select the list box file and read the data from file

  I can list the files in the folder in the listbox

  1. I want to just list file .txt files

  2. How can I read data from the selected file (.txt)?

  I think that's what you want, enter a model in your list of files vi (for example, *.txt) and then just use File.vi text of reading by using the selected item in the list box (double click on event or value change) and use the starting for the vi records list path.  I have included a crude extract for your pleasure.

• fundamental question of write and read.vi series

  I downloaded the basic_serial_write_and_read.vi so that I can learn how to make my VI communicate through series.  Why the example diagram shows the resource name VISA, baud rate, parity, etc. as small rectangles, but when I go to create my own vi and the attempt to put what I think, it's the same controls down, they appear as squares of normal sizes?  I have chosen the wrong controls?  I do not know how to attach a file, or I will show you my vi.

  Tron

  What you call "normal sizes squares" is called the display icon and for those of us who use LabVIEW for awhile, there is nothing normal in their subject. You can right click on any of these and check/uncheck the "view as an icon. To place all the controls/indicators on the scheme in the form of smaller objects, go to tools > Options > block and uncheck "terminals in front Place as icons.

  PS why you download this example? It is part of the examples provided with LabVIEW.

• Report and read the Excel file

  Hi all

  I need to match the styles of paragraphs with Indesign and files the Excel file.

  Excel file consists of (approximately 500 paragraph Styles) naming of the files of standard paragraph styles

  Files InDesign with 100 paragraph Styles.

  My request:

  I need to generate the report if Indesign paragraph styles that are not in the Excel file.

  for example,.

  Indesign file Excel file

  h1                             H1

  h2                              h2

  h3                              BL

  tx                              tx1

  TX1

  TX2

  Create the report as:

  Paragraph error style is H1 and BL in Indesign file

  Created script:
  

  var myDoc = app.activeDocument;
  
  var myPstyles = app.activeDocument.allParagraphStyles;
  
  alert("myPstyles: " + myPstyles.length)
  
  for(i=0; i<myPstyles.length; i++)
  {
       var IndesignPStyles = myPstyles[i].name;
      alert(myPstyles[i].name)
      }
  //_____________________________________________________________
  
  //Help Here
  
  var myFile = File.openDialog("Choose a tab delimitted txt file:");
  if (!myFile){
  exit();
  }     
   
  myFile.open('r');
  while (myFile.eof==false){
       line=myFile.readln();
       line = line.split("\t");
       myFind = line[0];
  }
  
  
  

  Could someone help with this request.

  Thanks in advance

  Beginner_X

  Hi BEGINNER_X,

  First of all, you must convert the excel file to the format of files "*.csv or delimited by tabs. (I use commas .csv file).

  You posted in above code JS reading only the names of paragraph style. Then another code is read only comma-delimited text file, but you are not comparing the paragraph style in the list of excel files. You missed here.

  Please try the JS code below his works very well, but not generated the report file. I hope that you will generate the report of your side file.

  var myFile = File.openDialog("Choose a tab delimitted txt file:");
  if (!myFile){
  exit();
  }     
  
  var myArray = []
  myFile.open('r');
  while (myFile.eof==false){
      var line=myFile.readln().split(",");
      myArray.push(line[0]);
      }
  
  var myDoc = app.activeDocument;
  var myPstyles = app.activeDocument.allParagraphStyles;
  
  Array.prototype.contains = function(obj) {
      var i = this.length;
      while (i--) {
          if (this[i] === obj) {
              return true;
          }
      }
      return false;
  }
  
  var myMissingStyle =[];
  for(i=2; i
  THX,
  csm_phil
  		   

• Difference b/w reading synchronous file and read the file adapter Service

  Can someone tell me the difference between synchronous file read the service and the service of simple reading of the file adapter functions.
  
  where exactly do we use the synchronous file service? Please give me some example of scenario where we can use file synchronous read characteristic of service...

  Synchronous reading is used for playback of files mid process. People tend to use for consuming files based on a business rule. You can specify which files you want to read. An example of this would be an an email is sent telling the faile abc.csv has been downloaded. The BPEL process shuts down gets it. You can also cheange the location of the file dynamically in the process as well.

  Using the file adapter is used to call a process so when a file is placed in a place the BPEL process is called. It is most commonly used.

  see you soon
  James

• Barcode Excel and read the data

  Hello

  I'm creating a program where I would like to scan a barcode in LV and there LV scan a spreadsheet excel for this barcode and returns the data in this row. I found an example online that allows the discovery of bar code number in excel, but I'm not coming with a strange issue when you try to view the information in this row. My program is the correct barcode in all cases. Only when I get the number of rank 1 line information will be correct. When I enter the information in row 2 lets say it shows the information of line 3. When I enter the tier 3 program line 5 information display. Attached is my draft of the code (this is my first stab at ActiveX control so bear with it please) and a worksheet example I created with some information on how the program works. I have checked the other posts for similar problems and could not find one this hepls with my particular issue. I also checked the thread specific excel but found no link to the code that can help. Any help is appreciated. IM thinking that I'm more looking for something, but since this is my first shot at this type of programming im not very well what it is. Thanks in advance for any information.

  NYC says:

  The other thread is not VI or Excel.

  I'm curious to know what is happening in the VI, but I can't open it.

  It's the same question, except that this time the OP has provided a follow-up saying: ' OK, here's what I got, and it does. ' " Why? "I would have just kept in this thread. No matter what.

  In any case your mistake is that you don't want to connect the line found on all of the methods of Range.Item (get). You must connect a constant of 1 for 'Row' parameters for these two. As you operate on a found range, you don't want to change the line.

  As it is now your VI does not close Excel when finished. The Excel process continues to run in the background. See the example with LabVIEW, which closes Excel when finished.