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• LabVIEW 8.5 problems using strings with MATLAB Script node

  I am having some problems that seem to be a bug that I can not understand how to solve using strings in the MATLAB script node.

  I have two subVIs that make some calculations and both include a variable called "errortext" is a string. The two subVIs do their calculations using the MATLAB script node, so all the outputs are defined in the script node.

  The first sub - VI outputs that string and a number. The string is sent to an indicator on the front panel. The number is sent to the second Subvi which performs some calculations more and then returns another string of the same name to an indicator on the front panel. This second string is different from the first (error different two messages should appear).

  I did have problems with this in the past until this morning. This morning, it seems that two of these channels are now somehow mystically connected to each other. The second string repeat that what the first channel said despite the fact that the first string is not be linked to the Subvi where lives the second string. The only link between the two is a calculated value of double which went from #1 to the Subvi #2 Subvi.

  I tried many things: I tried to rename the strings so that they do not have the same name. Initially, he would not let me and gave me an error saying that the renowned string was a undefined variable (which is ridiculous). After removing and replacing things, I finally managed to do so I would change the name, but now it displays nothing at all and even more I think it might still display a completely different another string in my code!

  I also tried to remove the channel indicator and replace it. Yet once, it wouldn't let me initially. I would like to highlight, press DELETE and nothing. Finally after replacing all the subVIs with them, I was able to remove the flags, but this did not help the problem.

  Any idea for these problems pecular is greatly appreciated!

  I totally understand what you did, you were talking about variables in your fist post, and it was not clear if you were referring to a variable you have defined in the Matlab code, or you try to call a variable indicator/control, where is often seen on this forum (and who isn't). That said, the crux of The Matlab Script communicates with Matlab via ActiveX, and when you use a command window opens small. This is the workspace of Matlab environment. A variable that you define in a Matlab Script node will be visible in the other, even if it's in another VI (see attached for an example, figure). This is because the script nodes are running in the same environment space. It seems to me that if this is what is happening.

• Disable a node using scripts

  Leave well as I a VI.  Using scripts I can find all the objects of a particular type on the block diagram.  Is there an easy way to tell is now drawing a design schema for the disabled around all nodes, I found?

  Like lets say I want to find all nodes property on a block and disable them.  The only solution I found was to find all nodes in property, by using the crossbar for GObjects, then I can make a new Structure to be disabled with the new object VI, put in the same place and the limits that the property node, with the same owner.  But then, I still need to move the property node in the case of persons disabled structure.  But then, I have all kinds of broken wires that were once on the property node that I now moved ousur.  I need to understand how it was designed before the move, it wire to the tunnel Structure with disabilities then wire the tunnel on the pod on the property node.  I need to do for each wired terminal and each property node.  And then I need wiring through the case turned on the structure.

  What I was hoping to find a way to pull the disabled schema structure using scripts, but perform the same operation as if I drew the structure is, and this are also all nodes I captured with my draw, in the case of people with disabilities.  Is there a way to do this with scripts?  Can anyone think of a simpler way to disable nodes using the design schema disabled?  Thank you.

  Try to use the method of Sélection Enclose . There is here an example of shipping for it:

  examples\Application Control\VI Scripting\Moving Objects\Enclose selection and Move.vi

  .. .aaaand I just now discover after the opening of this example that someone recommended this method recently for a new method of selection to reach 2 . I'll take the updated example.

  Anyway, the strange thing about this method is that it must give the method a reference to an actual structure to define what kind of structure you want to encapsulate the code with. This requires usually drop a dummy structure, by calling Enclose Selection 2, then removing the dummy structure after that wraps the code.

• MATLAB script node error: 1046

  Hello world

  I now use Labview for data acquisition and want to use MATLAB
  function of node script to do the work of image processing.

  I have some problems get MATLAB script to function properly. The
  It is:

  Whenever I tried to run the program, Labview gave me the following
  error:

  "Error 1046: Labview does not initialize the script server, make sure that the server software is.
  installed. »

  However, MATLAB is installed in the PC. I think that the reason of
  This error is that I'm using a PC based campus University. I got into this PC MATLAB is a network
  versioned. (i.e.
  installed on the network server, but not in the local hard disk).

  Is that what I can do to work around this error?

  Kind regards
  Kent

  Hi hykwei,

  Unfortunately, it is not possible to obtain the MATLAB Script nodes to work
  LabVIEW under your current network configuration. So that the
  Node MATLAB Script to work properly, it takes that MATLAB is
  installed on the same machine as LabVIEW. This means that you will need
  either install MATLAB on the local computer on which you apply
  LabVIEW or you need install and use LabVIEW in the same
  Server computer where MATLAB is installed. Function of MATLAB
  feature, you may be able to make some sort of minimum installation on the
  local machine that adds MATLAB to your registry and program files list,
  but who sends you right to the copy of MATLAB on the network.
  However, I am not aware if it is still an option or how you could go
  on the implementation of this scheme, so if you are interested, I would contact with
  MATLAB for more on this topic.

  Kind regards

• Use scripts to change the name of the tab

  Hi all

  I'm trying to use scripts to add tabs to a tab control in an existing VI.  I am able to add new tabs easily enough, but I can't understand how to change the name of each tab when they are added.  Each name is extracted a TDMS file using a loop for.

  I looked through the existing discussion forums, and there are a few old messages that indicate I should look for the 'independent Label property', and that I should put it to allow me to change the caption of the tab.  There is always an explanation of this property in the help files, but I am unable to find my path to it in the current schema.

  Assuming that this property still exists in my version (2012), could someone tell me the correct sequence of references and property nodes to access this property?  Right now I use the class "TabControl".  If this property is obsolete, can someone let me know if there is a new method to achieve this?  Thank you.

  GSinMN

  After you have added the page, download the Pages property of the index of the newly added page, tab control, use the PageLabel of this page for the label.  It would be cool if the Add Page method returns the reference to the new page.

• Spend the MATLAB data types 'cell' between MATLAB script nodes in LabView?

  Hi all

  I need to pass a variable of data type of cell of a MATLAB script node in LabView to another, but the cell is not listed as a data type 'exit' in the script node.

  Is it possible to do without converting them into a 2D array?  Each column of my cell has a different number of lines...

  Thank you!

  Mike

  Too bad...

  Rather than use a typical LabView, I just say

  assignin ('basic', ' varname', varvalue ");

  in the first script and varname called from the second node to get my cell.

  Easy... duh leaving here if anyone has the same issue in the future.

• Use scripts to create digital orders without button increase/decrease

  I'll have fun using scripts to do things that were once "impossible", like the creation of a cluster programmatically in a list of variable names and their types associated with (use in a later program).

  When I create a digital control on a front, she has the visible increment/decrement key, by default.  I wanted to create controls without this feature, but I could not understand how (or even if it is possible, but I don't see why not).

  Any ideas?

  BS

  Just above the digital named menu item is the one you are looking for: digital

  Use the digital constant digital control for Style and class.

• Features of the Matlab script node

  Comparing only the specific features that overlap of Matlab and Labview, is there an advantage for the latter to be able to run blocks in parallel? What exactly is the purpose of the Matlab script node in Labview?

  MathScript can be deployed on real-time hardware (if that is the question). I don't know about the others.

• How to use the node function call library for a function in the dll with the data SUB type

  Hi all

  I would ask for your kind help

  I am facing a problem with the call library node.

  I have a C++ (stdcall) function, which has Sub as data type

  XXXX error code (hwnd, lid, getValue, * Sub data1, * Sub data2)

  data1 and data2 types are constantly changing based on the value of 'getValue '.

  Mainly I can use the call library node several times and adapt each node according to the types of data data1, data2 and extract the values and use in the code. Here is no question. Real question is:

  My question:

  How can I use a node of library time call and make a case according to the 'getvalue', who will control the data1, data2 data type. Here I really seeking solutions.

  My tests:

  I used varaints as entry to the libray call node of the data1, data2 and selected parameters in the call libraby node as "Adapt to type. Here labview just crashed.

  I appreciate your suggestions to feedbackand.

  Thank you

  Karine

  You must allocate enough space for data1 and data2, and then pass a pointer to this space. An easy way to do this is the function to initialize table. Set the U8 type and size for the number of bytes required. Pass this array to the function as a pointer of table data.

  After the function call returns, you need to extract the data in the table. You can do it manually, but a simple approach is to use the array of bytes to a string. Then, in a housing structure, use Unflatten chain to convert the string to the correct data type. This method also converts the "endianness" which will be probably necessary; Be sure to only set all entries for unflatten correctly.

• How to use the node to call a library function to convert C++ source codes

  Hi all

  There are two dll name 'QMSL_WLAN_Transport.dll' and 'QCAMSL_MSVC10R.dll' and some codes c ++ to connect to the DUT. The two DLLs work together for communicaite with the DUT.

  I am confused as how to use the node to call a library function to load the 'QCAMSL_MSVC10R.dll' function as

  g_hResourceContext = QLIB_ConnectServer_UserDefinedTransport((HANDLE) USER_HANDLE,
  UserDefinedSend,
  UserDefinedReceive,
  UserDefinedFlushTxRx,
  true,
  true);
  

  It seems that 'UserDefinedReceive, UserDefinedSend, UserDefinedFlushTxRx' Processaddress?  And "UserDefinedReceive, UserDefinedSend, UserDefinedFlushTxRx"'s functions in 'QMSL_WLAN_Transport.dll '.

  UserDefinedReceive = (_UserDefinedReceive)GetProcAddress(hUDT,"UserDefinedReceive");
  UserDefinedSend = (_UserDefinedSend)GetProcAddress(hUDT,"UserDefinedSend");
  UserDefinedFlushTxRx = (_UserDefinedFlushTxRx)GetProcAddress(hUDT,"UserDefinedFlushTxRx");
  

  Attached DLLs and C++ code snippets.

  Need help.

  Thank you.

  These parameters are reminders - pointers to functions that are called by the DLL - and there is no way to duplicate this purely in LabVIEW. Search this forum for the word "recall" and you will find similar questions (for other DLLs). You will need to write your own DLL (in C, C++, etc.) that implements these functions and provides a way to transfer data to LabVIEW.

• How to change the value of string clustered, to implement using the node value of property instead of writing directly on the flow of data or using the variable

  new to labview :-) and I have a problem when I want to change the value of a string in bunches, and I want to implement this using the node value of property instead of writing directly to the stream or by using the variable, enclosed is the picture.   No matter, I have change in cluster (control) or value of Popery out (indicator) cluster, the value (sensor 7) dataflow keeps unchanged even I gave the new value by value of property node. Thank you to give me some advice about this.

  

  Hi GerdW

  Thanks a lot for your answer. The reason I'm stubbornly tring to break the flow of DATA is: we have a test system that have about 100 screws, they have a few connected flow, some of them will be unbundling a cluster dataflow chain to check the value in order to make the different cases.  Now I want to insert user event by changing the control and influential cases during run time.

  As I initially uses a global variable (to control cases) instead of unbundle string data flow, it works well.  But then, I found there are a lot of screws that are using the string unbundle.  One of the 'lazy' means, I tried is to change the value via the property node (because that way, I did not need to find all the places where using the unbundle string and replace them with the global variable), then I noticed a problem with "dataflow", the value in the stream of cluster in fact will not be changed by changing the value of the property node.

  I did a test with VI simple (like the picture in last post), and after reading your advice, I tell myself that I need to understand the concept of "DATAFLOW" in labview, it seems that my "lazy" way can not work in this scenario.

  I have attached the criterion VI here, have you furthur suggestions on what I can do in this case?

  Mant thanks!

  Minyi

• Add the occurrence to a structure of the event by using scripts

  Hello

  IAM trying to (using scripts) updating a structure of the event (the case of the event add) on a vi is not on memory.

  I get error 1054 the specified object was not found.

  Here's a picture of him.

  any help in this will greatly be apreaciated.

  The error comes from the open air, because looking for structure in the wrong place. While it is perfectly logical that the owner would be the loop in practice yet script is not that friendly - you need to get the reference of the schema of the loop and use it as an owner.

• whenever I'm on facebook, play games, I get a message that if I continue to use scripts, can lock up my computer

  whenever I'm on facebook, play games, I get a message that if I continue to use scripts, can lock up my computer.

  I don't understand what that means.

  What can I do to fix this?

  I have windows xp

  I guess that your topic is not correct, since it is the problem with the site NOT updated.

  The problem of script depend on the site Web that when you play a game, there are several scripts written in the game that cause your browser becomes slow. Try to delete your browser history and also update your Windows.

  It is advisable to report this problem to the game devloper, since this question primarily related to the design of the game, they could solve it.

• Dump to IMPORT ORACLE 9i to ORACLE 11 G database by using script

  Hi all

  I'm trying to import a dump of an Oracle 9i database from exp in the Oracle 11 g database using script.

  
  

  (1) the export using 9i client script:
  

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

  #! / bin/sh

  testsync_home= / home/oraexp / / DMPtestsync

  log_home =/ home/oraexp/testsync/log

  file userid=test/test@testsource exp = $testsync_home/usr 'date' + %m %d %Y ".dmp tables =userdata2015 ACCORDING = y compress = buffer n = 655350 log = $log_home/exp_test_usr.log

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

  
  

  2) the import using 9i client script. Import the dump into Oracle database 11g. The imp can't exit normally, although the data has already been imported into the testdb.

  If the next part of the script can't be executed.
  

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

  #! / bin/sh

  "sync_date ='date + %m %d %Y"

  testsync_home = / home/oraexp/testsync/dmp

  log_home = / home/oraexp/testsync/log

  sqlplus test/test@testdb < < EOF

  truncate table userdata2015;

  commit;

  quit smoking

  EXPRESSIONS OF FOLKLORE

  file userid=test/test@testdb IMP = $testsync_home/usr 'date' + %m %d %Y ".dmp fromuser = touser = test test tables = userdata2015

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

  Can you please give me some advice on this situation?

  
  

  Thank you very much in advance.

  DO NOT USE THE DATAPUMP.

  You do not use expdp and impdp.

  You will use the 9i client exp and imp 11g client.

• I want to create new sequence from a clip using script.

  I want to create new sequence from a clip using script.

  You can pop the dialog box new sequence (which requires interaction from the user to confirm the name of sequence), or create a new sequence from a .sqpreset file (and specify the name); There is no API around the feature 'make a sequence corresponding to this project item', available in the project Panel.