VISA LabWindows timeout exception

Similar Questions

• in VISA READ timeout

  Hello everyone,

  I am in training course of end of study and my mission to carry out an automatic test bench.

  Not being an expert in Labview and ASCII language and that no one in the company is now capable of answering my question, I turn to you because you're the only who can help me please.

  United Nations instrument of I Doi to communicate en RS232C with SEFELEC DMG50 + not the DATASCHEET (page 85) is attached via Labview program that I found in the examples of the United Nations and works not bad (as an attachment also), EXCEPT THAT at the time or I send a request with a response to return like e.g. IDN (* IDN?) Application solutions), the referral program an error timeout-1073807339.

  As I understand it he tells me that he doesn't have enough time pour answer. But he wrote the answer in almost all still...

  The question I ask myself.

  1 - Why he answers while it displays a Timeout

  2. is this a problem of parameters (for me everything should be fine)

  3 - Can you tell me if I have chosen my flow control and the character XON and XOFF parameters

  I will be very grateful if someone can help me solve this problem because I galley not bad on this thing

  Thank you

  solved

  Thank you very much, because both of you (Albert.geven & SAMUEL_NIF) has been essential to clear the timeout error. For this I have

  1. I separated VI Write and Read VI and made a VI wait... because VI Read needs time to respond as you said

  2 - I also used a property of node (VISA bytes to the Serial Port)... because it gives a necessary shot for reading

  the new program is attached to understand more

  Thank you

  Auto

• VISA read timeout error - Keithley 2400

  I am using LabView 2010 to control a Keithley 2400 Sourcemeter on an RS-232 Interface. I want to set up a measure and take a reading (e.g. ground voltage / time)

  I took an example of "Keithley ReadOnly" library code, but the 1073807346 error to retrieve box "initialize". Then I looked in 'Initialize. VI"and found there is a VISA (timeout error?) reading error. I have attached two screenshots that shows errors. Can someone tell me how to solve the problem? Moreover, I am very new to labview, if someone could suggest a solution that is not too 'Advanced '? Thank you very much.

  
  

• VISA READ timeout error - several GPIB resources

  Hello

  I'm working on a network 3 GPIB instruments (Optical Attenuator, amplifier in fiber, spectrum analyser), controlled using VISA sessions in Labview. When it is run separately, the three corresponding screws (which are located in three different Labview projects) works as expected. However, when they ran at the same time, one gives them timeout-1073807339 VISA READ errors. These errors seem to occur when another instrument is sending / receiving data / instructions at the same time that she is.

  The exact context of the error is either:

  -an another VI is running, which includes sending several requests and responses every 100 ms, reading

  -by failing VI starts, I get an error of waiting time among the first Subvi containing a VISA READ operation to perform (sometimes initialize.vi (in situation 1), sometimes one of the subVIs connected the rest State (State 0) on the time-out of the structure of the event).

  or:

  -the default VI is running,

  -by starting another VI, which includes repeatedly sending requests and reading the responses, the failing VI up a mistake among the first Subvi containing a VISA READ operation to run (one of the subVIs linked the State of rest (0) on the time-out of the structure of the event).

  What I tried:

  -gradually increasing the delay between the VISA WRITE and READ operations to the relevant instrument (from 10 ms to 10 s), without success. More surprising are my observations which, by operating this single VI, increasing WRITE it / READ delay results in the same timeout errors. I have found no mention of such behavior through research google and forum. I hope that this may point to a solution to the main issue,

  -switching between synchronous and asynchronous VISA WRITE / READ operations.

  -reorganization of the network GPIB to a star to a linear topology topology (three instruments have different GPIB addresses in case anyone is wondering).

  My thoughts:

  It seems to me that the error is related to a delay introduced between a VISA request and its read operation by the transmission of another query associated another instrument in the same network GPIB. But I have no idea why pass a query to another instrument would introduce such a delay, or why this delay would result in a timeout error (and only an instrument, while writing / reading in each pilot screws are basically the same). Hopefully a more experienced Labview-er will be able to shed some light on my problem.

  Included is the project that contains the default VI (main.vi) and the driver custom made use of.

  There are a number of ways. If you want to keep separate projects for instruments, you can use semaphores often slandered around calls for screws in each project. Locking is not expected or predictable, but it would give controlled access to the GPIB resource.

• VISA read timeout

  I don't know why the function of reading im getting an error of timeout to the VISA (error that says "timeout expired before the operation is over"). I made sure the serial port of Labview and my cameras are serial port configured exactly the same. I even tested hyperterminal with the same port as in labview settings and it works perfectly, but my labview program gives me an error. My device ends each order he sent with a carriage return, then I mounted VISA READ to stop playback of data when he meets the CR character. I also made sure the carriage return was infact sent by my camera. Any thoughts?

  

  

  
  

• VISA Read Timeout error when using stream protocol BUS

  Hello

  I currently use the BUS Flow for a MFC Protocol and I get a time-out error VISA Read:

  Error 1073807339 occurred at VISA read in Send Setpoint.VI-> test.vi

  Possible reasons:

  VISA: (Hex 0xBFFF0015) timeout expired before the operation is complete.

  I extracted the part of the code and it attached to this message. Basically, whenever I hit OK to send a VISA just read set value times out. I tried to use the sub VI who is responsible to send the set value and it was fine (when manually, I copied and pasted the ASCII codes) but when I run the global function it times out.

  Any help is appreciated

  Thank you

  If you have a command string or a constant you enter a \r\n in, you MUST have '-' Codes view turned on in order to enter the actual control characters. If you enable "\" Codes to display and see \\r\\n, then you have used Normal display to enter the characters.

• How to run vi continuous when the VISA read timeout happens

  Hello

  I'm using LabView 2010 through a series of Agilent 6000 Oscilloscope. The Oscilloscope reads data from another experimental machine which will occasionally fail due to failure of the sample. When the machine breaks down, it ceases to send signals to the oscilloscope and leads to the error timeout of read VISA and the vi It is over.  Is it possible that I can run the vi permanently when the error occurs? For example, when the error occurs, it stores the error in the thread of the error. When the vi read the error code of the wire, it sends a command to stop my experimental machine then stop the vi.

  So far, it stops simply during the execution of the visa, playback function. In that case, why do we mistake in and out? Vi stop just when the error occurs.

  Thank you

  Laurent

  
  

• Interactive Control VISA & VISA Read timeout expired

  VISA control gurus,

  I am trying to contact my wireless AGILENT N8300A Test set.

  I am able to do the same thing via NI VISA Interactive Control...

  (Attached is the captain)

  But if I tried to do the same thing with a sample program.

  (Also attached below)... program shows a

  VISA: (Hex 0xBFFF0015) timeout expired before the operation is complete.

  I tried to use Async mode and synchronization in the VI... Reading VISA.

  But it always shows error timeout.

  I'm not able to understand what could be the difference, if it works well

  in an interactive control NI VISA, but not in my program

  Any help or pointers would be appreciated...

  Kind regards

  Diakité

  Hello

  very good that you have added the vi.

  You add a CR instead of a line break.

  You can do that in the string by selecting "------" mode for the string constant, you can use any string appearing in your comment as the display string constant.

  Good luck

• ksoap2 timeout exception

  Hi all

  In my application, I use ksoap2.jar for webservice call.

  WebService with a method called "HelloWorld".

  After the code that I used: -.

  String serviceUrl = "http://192.168.5.38/BlackBerryTime/Service1.asmx";
  String serviceNamespace = "http://tempuri.org/";
  String SoapAction = "http://tempuri.org/HelloWorld";
         
  SoapObject CPP = new SoapObject (serviceNamespace, "HelloWorld");
         
  Envelope SoapSerializationEnvelope = new SoapSerializationEnvelope (SoapEnvelope.VER11);
         
  envelope.bodyOut = rpc;
  envelope.dotNet = true;
  envelope.encodingStyle = SoapSerializationEnvelope.XSD;
         
  Ht HttpTransport = new HttpTransport (serviceUrl);
  HT. Debug = true;
                 
  Try
  {
  HT. Call (soapAction, envelope);
  String result = (envelope.getResult ()) m:System.NET.SocketAddress.ToString ();
         
         
  }
        
  catch (Exception ex)
  {
  String bah = ex.toString ();
  System.out.println ("wrestling..." + ex);
  }

  Copy the following code returns "java.io.InterruptedIOException: Local connection has expired after ~ 120000" exception.

  My call webservice as below: -.

  POST /BlackBerryTime/Service1.asmx HTTP/1.1
  Host: 192.168.5.38
  Content-Type: text/xml; charset = utf-8
  Content-Length: length
  SOAPAction: "http://tempuri.org/HelloWorld".

  
  container http://www.w3.org/2001/XMLSchema-instance"="http://www.w3.org/2001/XMLSchema"xmlns:soap ="http://schemas.xmlsoap.org/soap/envelope/">" "
   
      http://tempuri.org/"/ >
   
  

  1. How can I solve this problem...

  2. What are the ways that I set up in my code.

  Thank you Inadvance.

  put the creation of transport in a class outside.
  You can now test the webservice call using JUnitTest (by the importation of HttpTransportSE).

  What about your error: try to reach the address of the Web service in your browser.
  did you start the MDS Simulator or add deviceside = true?
  read the sticky connection thread.

• VISA general parameters: Timeout Value vs Async lock timeout

  I think I found a bug in my code caused by a misunderstanding, I want to double check. In general, I set a timeout of the VISA (GPIB) using the property node ' General Settings: Timeout Value. Due to the multitude of GPIB communications that I do, I always wrap by read and write code in the async VISA locks. My previous assumed that the timeout from the setting in the property node would transfer on and be used by the node of VISA async timeout.

  In the screenshot below, "5000" is attached to the lock VISA async timeout value. If I were to delete, the time-out for the lock of async VISA would be '0' (the 'default' vi for) or '500' (as defined in the node property)?

  

  Thank you!

  Hi tkott,

  The value of VISA timeout property node sets the minimum for any VISA request timeout, while Timeout entry VISA Lock Async.vi specifies the maximum number of waiting to ask this lock.  The minimum expectation of property node (which by default two seconds) should take precedence when it is longer than the time-out of the VI entry, otherwise entry timeout value will define the duration of the time-out period.

  To answer your question, the node property will usually define your timeout, unless wire you a higher value of the lock of VI.  Is this the behavior you're seeing?

• issue of timeout for the fpga 9870

  I'm collecting series instrument (read-only) data, instrument using 115200 baud, 8 bits, no parity 1 stop and no control flow, none of which are configurable.

  It works generally fine but sometimes it starting delay, by examining the properties of port, it says 0 bytes available there, but the instrument is always sending bytes. Disconnect the cable series and reconnecting gets it going again... But why?

  I detect and recover with happiness (framing, etc) communication errors, but I can't get anything to recover from occurrence of timeout exception of physical intervention.

  If I only connect the instrument and the start (forcing a real timeout) and plug in the unit, it will always be fortunately seems to start.

  At this point, I would be 'reset' the port on a timeout, but I can't find a method/technique to do so.

  It is a 9014 with 9114 chassis module 9870 (among others) and a labview 11 sp1

  Eric416,

  I had a 9870 running in a cRIO-9074 (scan mode) for some time now without any problems.  I think I'd still try the isolator just to eliminate the posibility of equipment short.  Then I hang a noculars on the TX/RX and see what kinds of things are spend on start-up/power.  Have you tried to have your code close, then reopen the VISA session when the time-out occurs?

• Visa erroneous zero byte in reading series

  Hi all

  Trying to debug a problem that I have with a Labview2011 VI and the USB-485/2 device.

  The installer has been simplified to get the wire from port 1 to port 2 in a 2wire-auto configuration. As described here:
  http://digital.NI.com/public.nsf/allkb/D5CC369B3E3E6F0586256D1600563245

  and here:
  https://decibel.NI.com/content/docs/doc-4169

  Port 1 sends a message of 8 bytes by using visa / writing then begins a visa-reading of 8 bytes. (timed content in a loop of 10 Hz)

  Port 2 is configured in a single loop using the wait for event visa byte, then visa-read 8 bytes, connected directly to visa / entry.

  For 1 Port data transmitted, the data received and read visa error code are recorded on the disc.

  The success of installation passes are receives data without loss... so the back loop work...

  However! Occasionally, another zero byte is read from visa-reading the port1.

  Almost all the code read visa back operations "1073676294" port 1 (the number of bytes transferred is equal to the number of entries requested. More data may be available) which is very good. Even if sometimes the error code '0' is back (operation completed successfully). This "0" code seems to be associated with the extra byte in the receiver.

  This causes a problem because it throws the mismatch scheduled application command/response pairs.

  I tried many tariffs buad, visa-read timeouts and transmit frequencies, the problem remains. Adding a visa-flush buffer prevents the error from reproducing, but won't stop him intervened and upsetting the logic of command/response.

  Any ideas would be appreciated.

  If you send real binary data (which it looks like you are), you should have the off stop character.  Remember that reading VISA will be completed when the FIRST of the following: the desired number of characters is read, the character of endpoint found, there is a timeout.  So if there's a 0xA in your data, which will stop the read before that you would like it.

• Exception type: 1F88A3ED family safety

  I set up the family safety on my windows laptop 8 without problem. At that time, I used my work e-mail account as my login information from microsoft.  I then added a mail alias electronic outlook my live account from microsoft as my primary alias.  When I logged in security for the family with this alias, he wouldn't let me change family safety settings and directed me to change my account on the family safety website. He did not know how to do, so I ended up add me as a parent again using my new alias.  Now I can't use the family safety website at all, I get a message saying that something went wrong, please visit the forum Exception Type: 1F88A3ED.  I can't find information on this particular problem, can help you please.

  Hi there - this happened to me, and the only way to fix it was to remove the second version of me on the family safety website. I hope it will work for you too!

• Browse using code

  I'm new in the world of labview and written my first code to move a linear step crossing using the velmex NF90 controlled engine (Yes, it's very old).  For my code, I wanted to enter the total dist and stop at intervals.  However when I run it, it does not how I like.  If I just run from the front panel traveres an interval, then stops.  If I use the excution of high point, and then he turns and not stop cross until the program ends.  I don't know if the length of the race has nothing to do with her or just a coincidence, but any help would be greatly appreciated.

  Tim,

  After that several hours to scan my code, I found the problem.  I did not expect until the controller told me that the order has been completed to continue.

  However, I stumbled across a little problem (more of a bump in the road).  Towards the end of the run, I have to wait for a response from the controller to indicate the engine is originally, I get a VISA playback timeout error.  This error is not present until the command is so doesn't effect the command but it can sometimes boring.  Is there an easy way to deal with the error if the user is not asked?

• Guard application launch at the start of the appliance, also need advice for the implementation of network methods

  Hi all

  I'm new to the development of Blackberry and I'm writing a relatively simple application to run on 7.1.

  So far the development was interesting, I managed to create my user interface using resources online (mainly this forum), but today I tried to implement some of the network classes that I need and now I just met constant problems.

  I use Eclipse SDK 3.7.2 (the one that comes with the plugin RIM)

  First question:

  I'm not sure what I changed, but today I noticed that whenever I start the Simulator (by sim 9360) my application is started during the initial startup process. I don't think he did this before, but to be honest, I wasn't paying much attention. I think it starts at the start of the device is because I put a breakpoint in the constructor for my class from the main screen, which is hit before the Simulator happens even to the point where it is ready for user interaction. In addition, once it is ready, if I press the BB button, I see my registered application.

  I don't have it set to automatic start in .xml descriptior enforcement.

  I started this application on the HelloBlackBerry sample, here is my main method for the entry of the application:

  public static void main( String[] args ) {
          appSettings = AppSettings.fetch();
          // Create a new instance of the application and make the currently
          // running thread the application's event dispatch thread.
          HelloBlackBerry theApp = new HelloBlackBerry();
          theApp.enterEventDispatcher();
          //openConnection();
  
      }
  
  
  

  As far as I know, this is the only entry point for the application.

  More code

      public HelloBlackBerry() {
          // Push a screen onto the UI stack for rendering.
          mainScreen = new ScreenHelloBlackBerry();
          pushScreen( mainScreen );
      }
  

  Here is the method of. my class AppSettings fetch()

      // Retrieves a copy of the effective properties set from storage.
      public static AppSettings fetch()
      {
          AppSettings savedSettings = (AppSettings) _store.getContents();
          return new AppSettings(savedSettings);
      }
  

  Some of this code that I wrote myself, the persistence store cause the launch of my car?

  I tried to reset the Simulator to the factory settings, no change.

  All applications initialized during the startup of the device and then closed shortly after?

  Part 2: Need advice for the implementation of functions of network in the application

  I need to implement some methods that will retrieve data from a web service, and I also need to send data to this service. What I've read, the ConnectionFactory is the way to go. I want my application to make a request when the application is open and can check on a set interval. I didn't know exactly how to go about adding another thread for networking, I understand that network connections should not be created on the thread main event, so I tried to do this:

  The constructor of my class that implements screen (ScreenHelloBlackBerry), I use the following to create a modal dialog box to prompt the user for a username, I also try networking wire in the same segment of spawning:

          public ScreenHelloBlackBerry(){...initialize fields and managers, add it all together...then near the end
  
  //This will open the confirm dialog when the application is launched
          UiApplication.getUiApplication().invokeLater(new Runnable() {
                public void run() {
                    openConfirmDialog();
                  //start connection - Possibly broken
                    ConnectionThread ct = new ConnectionThread();
                    ct.start();
                }
          });
  

  I don't know if it's somehow OK to do, but it seems to work for what I need. I want a user who launches the application at the prompt, and if a user switch applications, when they come back they wondered again (unless they close the app and reopen it).

  Here is my ConnectionThread:

  public class ConnectionThread extends Thread
  {
  
      public void run()
      {
  
            ConnectionFactory connFact = new ConnectionFactory();
            ConnectionDescriptor connDesc;
            connDesc = connFact.getConnection("http://www.google.com");
            if (connDesc != null)
            {
                HttpConnection httpConn;
                httpConn = (HttpConnection)connDesc.getConnection();
                try
                {
                    final int iResponseCode = httpConn.getResponseCode();
                    UiApplication.getUiApplication().invokeLater(new Runnable()
                    {
                        public void run()
                        {
                            Dialog.alert("Response code: " +
                                          Integer.toString(iResponseCode));
  
                        }
                     });
                    httpConn.close();
  
                 }
                 catch (IOException e)
                 {
                   System.err.println("Caught IOException: "
                        + e.getMessage());
                 }
            }
      }
  }
  

  At the moment it has basically unmodified code from a sample that I found, I'll be retooling to meet my needs whenever I can make it work. I HAD this work to the point where, after the closed user confirm this dialog, a few moments later a an alert dialog appears with the 302 response code. I don't know what changed, but now it doesn't work at all, and if I try to scroll with the debugger, I can't past the httpCon.getResponseCode (). I've seen some mistakes earlier on "no record of service was set up", and I also had once a timeout exception.

  I'm sure I'm doing this wrong, but at the same time as I said WAS working, and now it is not. If someone has done this far, thank you very much for your time and advice are much appreciated.

  Also, should I try to start the thread of the network of the UIApplication class instead of the screen? There is currently very little happening in the class that extends UIApplication, do I spend most of my business logic out of the class of the screen and in the UIApplication class?

  Thanks in advance!

  Hi all

  Just to conclude this topic for those who are interested, I found an excellent guide to the implementation of networks in applications of BB, click here for a link.

  About my application being started at the start of the simulator of the device, I found that on a device real this behavior is not complied with, and in addition, the behaviour seems to have stopped after uninstallation and reinstallation of my Simulator.

  See you soon,.