VISA: Characters of termination two RS232

Similar Questions

• VISA: (Hex 0xBFFF003A) using a RS232 USB converter

  Hi, I'm reading a pH meter and it is connected to my computer by USB using a USB RS232 converter. NOR-MAX recognizes the instrument, but when I try to play the instrument in the testpanel I timeout error. When I read the status byte, it gave me the following error VISA: (Hex 0xBFFF003A) cannot start the operation because the installer is not valid (because of attributes defined in an inconsistent state). I looked in the attributes and saw the following error VISA: (Hex 0xBFFF001D) the specified attribute is not defined or supported by the resource referenced. the pH meter is a unit of office of simpel with the following characteristics: baud rate 9600 8 data bits years 1 stop only bit no control flow or parity.

  Why try to read the status byte? It is not an instrument based GPIB is?

  What attribute? I asked in your original post to attach a screenshot of MAX. Why should someone have to guess? I suspect this attribute doesn't apply to serial devices OR and is not relevant to try to read the status byte.

  Check if you are using the right type of cable and check to see if you add the correct end character. You also do not mention if you write what whether in port or just do a reading. You mention also the seller or the model number of the meter.

• Den inst and Mettler balance does not not for the Visa print command

  Hello, I am working at the interface a S-8001 Instrument in Denver and an analytical balances Mettler Toledo PB5001 in the same .vi. Using the subvi VISA I can get two scales to account for their mass in the .vi, but only if I send them constantly of the data (i.e., baud and comm port, etc. are configured correctly). My problem is that ongoing surveys are both unnecessary and are prone to error and the .vi are save only a part (or a zero) in any event given sample. I can confirm in addition to using hyperterminal print control correct for the Denver Instrument balance is "esc + P", and I think that the command of Mettler is a variant of '' IF. '' However, enter either of these commands (and other variations) in the terminal 'chain to write' the visa write .vi does not appear to send the necessary information to the balance to deal with the measure. I spoke with support technique both Metter and DI and after spending time with each other that they were unable to solve the problem... but suggested that perhaps the wonderful world OR maybe get an idea. Forward to your response. Thank you!

  How do you send the esc character? You can just type esc. Hex 1B then you could do a right-click on the control of the chain and select "hexadecimal display. There are other such features a cast and table byte in string that are useful when doing non-ASCII.

• What does Visa Read.vi? with a number of zero bytes

  If I use the bytes to property node Port to entry VISA Read.vi number of bytes, and the value is zero, what happens?

  VISA will Read.vi return immediately with zero byte?

  VISA Read.vi returns immediately with however the number of bytes may have shown in the buffer in the meantime?

  VISA Read.vi expects bytes or characters of termination?

  VISA is Read.vi waiting for timeout?

  The documentation does not say, and I need to know.

  Thank you.

  WARNING 1073676294 was held at VISA Read in Untitled 1

  Possible reasons:

  VISA: (Hex 0x3FFF0006) the number of bytes transferred is equal to the number of entries requested. More data may be available.

• Code sign VISA raw driver USB for Windows 8

  Hi guys,.

  I wrote a LabVIEW program that communicates with a measuring using NI-VISA (class raw USB) USB device.
  With the development of Driver NI-VISA Wizard, I created two .inf files of drivers (for XP/2000 and 7/Vista).
  It works like a charm on my computer (Windows 7, 64-bit) and on the computers running Windows XP and 32-bit versions of Windows Vista and 7.
  I also have to work on 64 bit versions of Windows Vista and 7 using "disable driver signature enforcement" before installing the driver.
  Once the driver is installed, it is listed under "devices USB of NI-VISA" in the Windows Device Manager. After that I can reactivate the driver signature enforcement, the unit will continue to work, even after a reboot.

  Alas, in the 64-bit version of Windows 8 is not as simple as that. Yes, you can temporarily disable driver signing enforcement, but not on computers that use 'secure boot' or UEFI.
  I know that there are ways to disable booting UEFI's secure, but I don't want that on our customers computers. It seems wrong, and could introduce a large number of security problems.

  The next logical step would be to sign the device driver. Our company has a valid kernel mode code signing certificate and we signed the other drivers with it in the past.
  The problem is that I don't know how to sign my device in the NI-VISA database driver. According to the .inf file it uses WinUSB.sys, a Microsoft USB generic driver (part of the Windows Driver Kit, I think).
  Winusb.sys is already signed by Microsoft and that I could replace the signature, but that probably won't work without some tweaking inf and generate a new catalog file.

  Can someone please give me some pointers on where to start? As a reference, I have attached one of the inf files for this post. This inf file works on Windows Vista and 7.

  It is even possible to create a signed driver based on NI-VISA raw?

  Thanks in advance for your help.

  Paul

  Here's a knockout who described workaround.

  http://digital.NI.com/public.nsf/allkb/36DB8D6AC385052786257A940066A421

  What you have written, you need to generate a catalog (.cat) of the inf file (as described in step 1 of the KB) and then sign the .cat with your certificate file, the same way you would sign your other components. The inf and CAT are always distributed together. The inf file contains information about the cat file that has the signature, and the cat file contains the signature information. Since you have already been distributing the components signed with your own certificate, I'm sure you can understand the process, but please let us know if you have any other questions.

  Thank you

  Pankaj

• LabVIEW 7.1 IVI - C Wrappers and VISA property node do not work together?

  Hello world

  I want to use the property node VISA with LabVIEW 7.1 Wrapper of two companies different well known instrument, Rodhe-Schwarz and Agilent Technologies.
  The two companies releasead their IVI - C for NI LabVIEW 7.1 drivers version NI Instrument Driver network and they are ready to be installed and used.

  I found a bug manifested that the LabVIEW 7.1 version that the bug is not present in whhen versions 8.0 LabVIEW or LabVIEW 8.6 than these IVI LabVIEW of LabVIEW 7.1 wrappers are used.

  Everyone could exeperience this bug if they have LabVIEW 7.1 installed and are trying to use the version of LabVIEW 7.1 of these wrappers which are published in NI Instrument Driver Network under the links below.

  Agilent ag81150ni IVI Driver for LabVIEW 7.1 install from here. Used in simulation that by definition simulate = 1

  http://sine.NI.com/apps/UTF8/niid_web_display.download_page?p_id_guid=55798957B1A633BDE0440003BA7CCD...

  Rodhe Schwarz rsngpt IVI Driver for LabVIEW 7.1 install from here. Used in simulation that by definition simulate = 1

  http://sine.NI.com/apps/UTF8/niid_web_display.download_page?p_id_guid=E3B19B3E91D6659CE034080020E748...

  After the installation of these two complete drivers close LabVIEW 7.1, if it was open, and then restart LabVIEW 7.1. You can see two new ready to be used as LabVIEW 7.1 IVI drivers in the LabVIEW Instrument Driver pallet wrappers in a LabVIEW 7.1 VI test.

  Open a new white VI and of the use of the Instrument Driver Palette two VI known, initialized with Options.vi and Close.vi adding them on the block diagram, connect all THMs. Accept all default settings except simulate parameter which must be defined as = 1 simulation.

  The two VI run OK mode of simulation without errors.

  Now select a property in the advanced Panel of VISA node and press this node between 'Initialize them with Options' and 'Close' VI and make all necessary in-out connections and error.

  Run these two simple screws of simulation

  1. When I run pilot Rodhe Schwarz IVI the property node going OK until the end. No error
  2. Whne I run Agilent IVI driver the property node is always out of the error Code 7.

  Question is why they behave different with regard to the property of node when it is used with the LabVIEW 7.1 envelopes? BTW, the failing VI of wrappers Agilent LabVIEW 7.1 works very well in labVIEW 8.0 and 8.6. That means that this problem is limited only the version of LabVIEW 7.1.

  I posted the same question on the set of LabVIEW and nobody chose their interest in there so I decided to post here. As this question is also linked to IVI, VISA drivers, it is possible the person of this group to get a clue about this annoying behavior.

  I've attached screenshots of the PNG files that show the difference of different behavior of VISA property between these two drivers node.

  ScreenTestShots.zip (152 kb)

  Thank you

  Sorin

  
  

• How to get the last 50 characters in a string

  Hi, I need to get 50 last characters in a piece of 25 characters each in two columns if the column notes less than 50 characters ex: 43 then I need to last 25 one column and left (18 characters) in the second column.     I tried using substr and the first column of length functions fine, but the second column has a problem: select substr ("ABCDEF GHIJ', length('ABCDEF GHIJ')-25, 25) of double; Thanks, Kiran

  Hello

  what I understand: if I call 'x' the length of the string:

  IF x > is 50 THEN result1 is 25 tanks, result2 = 25 characters

  IF 25< x=""><  50 ="" then="" result1="25" chars,="" result2="(" 25="" -="" x="" )="">

  IF x<= 25 ="" then="" result1="x" chars,="" result2="">

  Note that SUBSTR (x, n) selects the n last characters:

  SELECT SUBSTR ("ABCDEFGH",-3) FROM dual-> ANUS

  For example AS

  (SELECT "AAAAABBBBBCCCCCDDDDD" double str

  UNION ALL SELECT 'AAAAABBBBBCCCCCDDDDDEEEEEFFFFFGGGGG' FROM dual

  UNION ALL SELECT 'this_is_exactly_25__chars' FROM dual

  UNION ALL SELECT 'This___is___exactly___fifty___characters' FROM dual

  UNION ALL SELECT 'AAAAABBBBBCCCCCDDDDDEEEEEFFFFFGGGGGHHHHHIIIIIJJJJJKKKK' FROM dual

  )

  SELECT str

  LENGTH WHEN CARTER (str)<>

  THEN str

  WHEN LENGTH (str)<>

  THEN SUBSTR (str, 1, 25)

  Of OTHER SUBSTR (str, LENGTH (str) - 49: 25)

  END performance(1)

  , LENGTH WHEN CARTER (str) > = 50

  THEN SUBSTR (str,-25)

  WHEN LENGTH (str) > 25

  THEN SUBSTR (str, 25 - LENGTH (str))

  ANOTHER NULL

  End result2

  SAMPLE

  ;

  STR                                                    RESULT1                   RESULT2

  ------------------------------------------------------ ------------------------- -------------------------

  AAAAABBBBBCCCCCDDDDD AAAAABBBBBCCCCCDDDDD

  AAAAABBBBBCCCCCDDDDDEEEEEFFFFFGGGGG AAAAABBBBBCCCCCDDDDDEEEEE FFFFFGGGGG

  this_is_exactly_25__chars this_is_exactly_25__chars

  This___is___exactly___fifty___characters This___is___exactly_ ___fifty___characters

  AAAAABBBBBCCCCCDDDDDEEEEEFFFFFGGGGGHHHHHIIIIIJJJJJKKKK ABBBBBCCCCCDDDDDEEEEEFFFF FGGGGGHHHHHIIIIIJJJJJKKKK

  Best regards

  Bruno Vroman.

• Limit of characters in the text field (multiline). Is this true or am I dreaming?

  Hello

  I use the plugin CKEDITOR with my text entries and when dough stylized text, attributes, and other things like customers are created by increasing the number of characters in textarea html sense cannot be complete if we limit characters in the article multiline text field web app.

  A lot of pages break when the web application retrieves these fields in the details of page layout view, because html is not complete in the text field.

  Then text field for Web (Multiline) application has the limit of characters, or maybe I am doing something wrong?

  What it takes to get rid of this limit?

  Thank you

  Hi Ray,

  Please refer to this thread below the limit of characters for the two text (string and multiline) at this stage.

  - http://forums.adobe.com/message/4342388

  Kind regards

  -Sidney

• 9033 OR &amp; NI 9870 - series recording parameters do not restart the cRIO.

  Hello

  I have a cRIO OR 9033 with two RS232 9870 cards. The two cards series and their ports do not appear when I turn on the cRIO. When I run my executable in real time, once it crashes, saying: he cannot find the ports I ask. After that it crashes, the channels appear in MAX and VISA resource controls, and when I run the program a second time, it works very well. Why does this happen? Is it possible that I can have the save of the series, so I don't need to have the program crash whenever the cRIO starts?

  I run my program in hybrid mode. I Interface FPGA and including two maps cRIO outside the FPGA target, like this:

  

  I tried the cancellation of the deployment and the deployment of all, but it does not help. It blocks the first time regardless if I execute the suite of LabVIEW Development or if I deploy it as an RT executable and run at startup.

  Here are some pictures of what is happening:

  10-port VISA should be available. The two on the chassis and four for each card to 9870.

  When I start first cRIO, only the ports of two chassis looks for selection in a control channel VISA:

  

  And the channels do not arise to the MAX:

  

  Showing also currently installed software.

  When I go to the settings of NI-VISA 14.0.0 page I see this:

  

  Channels appear here, but nowhere else.

  When I try to run my program, I get this error:

  

  And after the error, the channels appear in LabVIEW and MAX!

  

  

  Series settings will remain as long as I leave the cRIO powered. If I disable, settings series pannals and I need run my program once only it crash before I can use the serial ports.

  I would really like for these settings apply automatically without having it fail the first time.

  Any suggestions?

  I also run hybrid FPGA on cRIO with cards 9870 and 9871 under the scanning engine you are. I also noticed behaviour buggy when accessing the COM ports - for example, if the cRIO running the executable version of his program and you interrupt it to run the same program in interactive mode, often, you receive the error message "missing resources VISA." So what I do is restart the cRIO with the disabled startup application.

  I honestly would not bother to configure anything through MAX when it comes to your cRIO. You configure port configuration programmatically. In the process of initialization of your program, open your bitfile, run it, wait, a few seconds to have everything settle, make a VISA "find resources" and confirm all your ports appear, then use the VISA to configure and open the port by program. This way worked for me.

• To configure a serial port using Max

  Hello

  I inherited the code that configures the serial port using the old serial code that does not allow the user to specify the term tank and turn on the tank of the term. Any ideas on how this is done with the old serial code? I also tried to use MAX to set the term tank and allow it, I am able to communicate with my device series with Max and I saved the changes when I was. So when I run Labview code, my serial code fails because the term tank is wrong and it is also not enabled.

  Everything that happens with the definition the term tank and allows ideas?

  What you do to the MAX to the extent where the configuration of the serial port have no impact on the LabVIEW program. (EDIT: which means that you can change the configuration in the LabVIEW code.)

  If you load the old code in a version of LabVIEW using VISAS for all the stuff of series then the screw would have been automatically replaced by shell screw that NEITHER created for the old code. Inside, they use just VISA. More than probably the old code use via digital port numbers. For example, in the library of \vi.lib\Instr\serial.llb of , you will see these shell screw Serial Port' writing' for example, calls the 'Open Serial Driver' VI which simply returns a VISA session. It then uses the Write VISA. So you can define characters of termination by obtaining the VISA of "Serial Driver Open" resource.

  Of course, the best solution is to rewrite the code using VISA directly. It will be much cleaner.

• Adding RAM for MacBook Pro 13 inches without retina

  Hey,.

  I want to buy a MacBook Pro 13 inch without retina. The description says that I can buy the version with 4 or 8 GB of RAM, but I wish I had 16, at least. Is it possible to put a 16 GB of RAM on a MacBook Pro 13 inch without retina?

  Let me know, thanks!

  If this is the model of non-retine of 2012, then you can install 16GBs of RAM, but not by Apple. Then buy the 4 GB model then visit OWC to buy two 8 GB modules to replace the two accompanying him.

  Maximum memory	(Real) 16 GB 8 GB (Apple)
  Memory locations	2-204-pin PC3-12800 (1600 MHz) DDR3 SO-DIMM

  The above is for 2012 non - retina 13 "model.

• Inbox displays white page in the default font size

  When you visit Google Inbox in two of my books (the office works OK), I have a display problem weird quite appear empty (see image).

  If I open an email and start scrolling down, then the fonts appear.

  I have the latest version of Firefox in all three of my PC, I tried to clear the cache and cookies, enter private browsing mode, enter safe mode, but the error still there.

  Well well... happen in Firefox 41.0b7, then... fixed. Sorry for the inconvenience.

• On Windows 8, some widgets, such as the menu near the upper right button, stop working after awhile, and restored by restarting the PC.

  I use the latest versions of Firefox as soon as they are available on a PC in Windows 8. Firefox works fine, usually a few hours before the annoying problems manifest. The problem, that I address here is some widgets, including some widgets Firefox and widgets (such as buttons and selectors menu drop down) isolated in some sites stop functioning. In Firefox, the Menu button (the icon of three dashes stacked) stops working. And the download arrow sometimes stops working too. Sometimes, sub-items as printed stop working. A pull-down, the high and arrow down keys could still work even if I might now be able to select with the mouse. Closing and re-opening Firefox usually restores some functionality. However, I usually have to restart the PC to restore all the functions that has stopped working. So I'm good for usually a few hours yet. Another inconvenience, which others have addressed, is the appearance of Chinese characters - to research on the tab toolbar labels at the top. Restart Firefox gets rid of these for the moment. Thanks for the study.

  Philipp,
  Thanks for the quick reply and for the advice that you have presented.
  I downloaded and installed the graphics driver that you recommended. The process went well. I have hardware acceleration disabled by an earlier recommendation to remove these Oriental characters.
  After two days of problem apparently having been fixed, I considered replying to report success. But before I could get around to doing so, abnormal behaviors reappeared. Thanks for confirming the source of these Oriental characters. Previous research indicates that the source was with McAfee or Firefox, a bit like a battle for "pointing the finger" in between.
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• Why doesn't my password work?

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  In addition, I tried to change my password of Firefox on my desktop PC to be rejected for the same problem. So I can't even change my password (it takes the old password).

  Password for what?
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• Satellite C660/C660D - shift key causes the screen to go black

  After purchasing the Satellite C660/c660D less than a month ago.
  I am disappointed to see the SHIFT key (left), as well as the CTRL pressed, causing the screen to go black intermittently when you type my blog...

  Course not blogger like tested also in word.
  All the ideas that is weak given the reviews and prices...
  Help... dosnt do it every time, but most of the time. Not happy!

  It is a fault, I don't expect this brand

  Thanks for any help

  Hello

  > I am disappointed to see the SHIFT key (left) and the CTRL pressed, causing the screen to go black intermittently when you type my blog...

  What does this mean exactly? Press SHIFT and CTRL button turn off the display, and you are not able to see anything on the monitor?
  Is this good?

  Have you checked if this happens with the help of an external USB keyboard too?
  If this isn't the case, I guess that your keyboard is malfunctioning and needs to be replaced.

  One of my friends had a problem with my keyboard. The cursor jumped around and some characters are displayed two times this could be resolved by the BIOS update I m do not know if your laptop uses the latest version of the BIOS, but you can check this too.