Interactive Control VISA & VISA Read timeout expired

Similar Questions

• 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.

• 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 - 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.

  
  

• 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

• 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

  
  

• Possible GPIB communication through interactive control of Visa, not with Labview

  Hello

  I have a communication problem with Labview with GPIB instruments (with functions of visa).

  I get:

  "Error 1073807298 occurred at the VISA opening

  Possible reasons:

  "VISA: (Hex 0xBFFF003E) failed to perform operation due to i/o error."

  However, it works with an interactive control visa and this is where I am confused!

  Here is my setup:

  -Labview 2011 assessment

  -VISA 5.1.2

  KUSB - 488B with the associated drivers (adapter USB to GPIB of Keithley)

  Because I can speak with my instruments in visaic, I guess the installation of drivers for the Keithley interface is ok.

  Trace IO NOR I see beeing of commands passed through Labview to VISA so that they "see" between them.

  I found a thread where someone had the same problem and its solution was downgrade to Labview 8.5.1, which is not possible for me.

  http://forums.NI.com/T5/instrument-control-GPIB-serial/Keithley-2700-driver-problems/TD-p/1474212/PA...

  You have an idea to solve this problem?

  Kind regards

  Baptist

  Here's a follow-up on this issue.

  I tried with Labview 32-bit on main machine: it works.

  The pleasure is that I have to use Labview 64-bit.

  So the ultimate solution is now to run a client and a server of visa on the machine: Labview 32 bit can directly access my resources GPIB, Labview 64-bit must go through the closure of the network.

• Why is-Visa Interactive Control unable to find or load the visa library

  I'm using LabVIEW 8.5.1.  I recently installed driver VISA tektronix to connect with one of their products.  That has proved to be a bad idea.  I've uninstalled it one then installed VISA460, but when I try to write a labVIEW driver that communicates via RS232 or USB, I get this error:

  LabVIEW: (Hex 0xBFFF009E) VISA or a library of code required by VISA impossible situated loaded.  This is usually due to a required driver is not installed on the system.
  =========================
  VISA: (Hex 0xBFFF009E) a code library required by VISA impossible located or loaded.

  When you try to run an interactive control Visa I get an error saying unable to find or load the visa library.  Is there anything else I need to download?  Any help would be great. Thank you.

  I had already done this, but had no luck.  However, I could be back up and running using Msiblast.  This is a great little program.  So, if anyone has problems in the future, simply download Msiblast and delete everything has VISA inside and then run the Setup program OR Visa.  Thanks for the help.

• VISA: (Hex 0xBFFF001) timeout expired before the operation is complete. I get this error when you run a VI (instrument is set up to be controlled remotely using the TCP/IP Protocol)

  VISA: (Hex 0xBFFF001) timeout expired before the operation is complete. I get this error when you run a VI (instrument is set up to be controlled remotely using the TCP/IP Protocol)

  Please suggest a solution.

  Thank you very much, it worked!

• Need help to test the VISA interactive Control: Sorensen XBT32 - 3FTP USB connection problem

  Hello

  I use Windows 7. I installed the USB driver provided in this link:http://www.sorensen.com/products/XBT/XBT_Downloads.htm.

  Max is on the ASRL5: COM5 series & parallel in the Device Manager it is listed in the port: COM5

  I don't know how to test using VISA interactive control to ensure that the connection is established.

  Here are the parameters:

  Serial settings:

  Baud rate: 38400,

  Data bits: 8

  Stop bits: 1

  Parity: None

  I use the default settings for the other options such as flow control: none, Timeout = 2000ms etc.

  In the attributes view tab:

  Attribute: is the connected port

  Current value: error VISA: (Hex 0xBFFF001D) the specified attribute is not defined or supported by the referenced resource.

  I don't know if it's important.

  When I write * IDN? \n (bytes to read: 6), I return the Count: 6 bytes

  When I click on "Read Status Byte":, I get the following error:

  Error reading STB operation VISA: (Hex 0xBFFF003A) cannot start the operation because the installer is not valid (because of attributes defined in an inconsistent state).

  If I click on "Query", I get the following error: reading operation error VISA: (Hex 0xBFFF0015) timeout expired before the operation is complete.

  I also tried to create USB raw driver help driver of VISA Assistant. In this case I kept getting timeout errors: read operation error VISA: (Hex 0xBFFF0015) timeout expired before the operation is complete.

  Can you please tell me what I'm doing wrong?

  Thank you.

  Who cares about the number of bytes written? And configure the windows com port is not relevant. What is important is how you set the com port in the VI or max.

• Cannot set COM parameters in NI VISA Interactive Control

  Hello everyone,

  I made a custom pcb that communicate constantly with the pc via RS232 (this is a one-way communication from the device to the LabView). I followed the example of serial communication and the .vi seems to work very well via the loopback test, but when I try to read the real signal from the turntable there is zero byte available at the port.

  I used the block VISA Config to set up communication (9600 bps, 8 bits, no parity, 1 stop bit, no stop character) and the block size of the buffer, but in interactive of Visa OR the serial port control is configured with the transmission buffer and receive buffer sizes to 0 and to search for a character of endpoints (line break) on the bed. I tried changing the settings and I get a message "no error", but when I apply the changes and close the port window, they are returned to the default values.

  This could be the reason why I get no data in the buffer? How can I change the settings for interactive control?

  Thanks in advance to everyone

  I see nothing in this dialog box that aims to "save changes".  I don't see that to apply to which probably applies only while you have this open test session.

  If you do not want to change the 'default' settings to a port, do you with Max when you click the port.  Change a setting here, and you can click on save.  I would never recommend to do.  For me, the VI should be the setting of the parameters.

  It shouldn't matter anyway.  Set the parameters in your VI will overwrite everything that comes as default values by Windows, or MAX.

  senor_homme wrote:

  This would explain why there is no bytes in entry, because there is no character endpoint not found.

  The use of the character of endpoint has nothing to do with the question of whether the bytes to the port there.  The stop (if enabled) character is a method to tell when a reading VISA will come back with data.   A VISA read returns with data every time that:

  1. the stop character arrives at the port, if it has been activated.

  2. the number of requested bytes returns (and asking for zero byte means that it returns immediately with nothing.)

  3. the timeout has expired.

  Have you tried to see if your device sends data using another terminal Windows of the program which is not LabVIEW?  Used to come with Hyperterminal of Windows, but it disappeared.  I don't know what I would recommend instead.

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

  Hello

  We use LabView to control a sequencer of high-voltage (HVS448LC 3000 D) LabSmith using LabView drivers from the manufacturer, power supply. Everything works well in our program (attached) until we try to use another program on the computer at the same time. For example, if we try to open a window for our camera, or even a folder in Windows, the program gives the following error:

  1073807339 error has occurred in the CITATION read in FromHVS448.vi-> CommandHVS448.vi-> RegulateVoltage.vi-> Gated timed injections version 06.the vi

  Possible reasons:

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

  We would like to be able to control the camera software and the power of LabView by using the same computer, but we do not know what could cause this problem. We would appreciate any suggestions! Thank you!

  You should really put a lot of orders of pre-instrumentation in parallel.  Force an execution order by using the wire of the error.  Serialize all commands to the instrument.  You may have an order interfere with one another.

• When you create a program to install the application in BT, which driver or the runtime must be installed to install the interactive control of VISA?

  I have created an installer requires the use of the LabVIEW application builder and use it to install NI MAX.  However, after you run the Setup program, interactive control of the VISA is disabled in NI MAX.

  The installation program installs the following components of NEITHER: NI LabVIEW Run-Time 2014 SP-1(64-bit) NI LabWindows/CVI shared Run-Time Engine 2013 SP2, OR Measurement & Automation Explorer 14.5, NOR-488. 2 application Development Support (including the time of execution), - VISA Support Configuration 14.0.1, OR - VISA DURATION 14.0.1, 14.0 Server NI-VISA, NOR systems Configuration Runtime 14.5.0, vision performance, performance dc power.

  If I download and run the installer 488.2, interactive control of the VISA is activated in NI MAX.  But the Setup program created with the application builder does not seem to install the necessary components.

  What needs to be added to the installer to allow the interactive control of VISA (VISAIC)?

  Thank you.

  I neglected to include OR-IMAQdx in Setup, which explains why NEITHER MAX was not to recognize the camera on the computer with the new facility.

• Possible timeout in VISA read/write in While loop

  As the title says, I have a while loop that is constantly written followed by reading using VISA read/write.  I'm waiting for buffer correspond to a certain one, which the true value would end the loop.  In this loop, I have an indicator showing how many times he runs. All of this is repeated in another while loop.

  My problem comes the counter arrives at 10, then stops at the "write" command.  Do not know why.  I tried to increase the time-out of the instruments, but nothing has changed.  I added a delay of 10ms in loop, which also has not changed anything.

  For reference, I use a tektronix scope series 3000 of the MDGS and checking its state of relaxation.

  You said chill to read earlier!

  But it is not supposed to have to write it either.  Experimentally, access all VISA nodes, right-click and choose the Mode of synchronous i/o.  Make it synchronous instead of asynchronous.  The watch symbol will disappear from the top right corner.  See if that changes anything.

  What kind of serial port are you using?  What is an integrated in the PC?  A USB to serial port adapter?  Makes the chips on that, Prolific and FTDI?  You can try with a different serial port or a brand of adapter?  A lot of people have had problems with prolific chips.  And I have also heard of people having problems using adapters who had fake chips in them.