Variable between TestStand and Labview

Similar Questions

• Parameter passing between TestStand and Labview

  Hello world

  I'm trying to pass a value of LabVIEW 8.5 to 4.0 TestStand.  After reading some of the posts, it seems that I must have terminals coming from the icon and that these can be edited in the "connection" pane

  I spent a long period of time to search for the "connection" pane and is an instance of unedittable in the class browser.  I have attached my simple VI below.  I want him to give me the ability to change the value of output in TestStand string when I load the module.

  Anyone know how I can place on my VI terminals?

  TIA

  Sean

  Hello

  Try LabVIEW user manual Chapter 7 creating VIs and SubVIs and build the component connector in Chapter 7.

  See also the computer demo sequence file card mother Test Sequence.seq (the version of LabVIEW) found in the folder examples TestStand.

  Hope this helps you

  Concerning

  Ray

• Connect the large number of parameters and variables between Verstand and model of Labview

  We have an installer of dyno with a chassis PXI-E running Veristand 2014 and 2014, inertia. In order to strengthen the capabilities and timing of the Veristand, I would use models of Labview to perform tasks is not possible by Veristand and inertia. An example of this is to determine the maximum amount of a large number of thermocouples. VeriStand has a comparison function, but it compares two values at once. This makes long and rigid emissions. LabVIEW, on the other hand, has a function which words one to get the maximum items in a table in one step. I need to use Labview to 'send' the thermocouples of 50 or more to the Labview model. In addition to the variables that must be communicated between Veristand and Labview, I also need to present Labview with the threshold and setting parameters. Forums and user manuaIs understand that you must use the connector pane in Labview Veristand System Explorer mapping to expose the inports and isolated villages. The problem is that the part of Labview connector is limited to 27 I/O. How to overcome this limitation?

  BTW. I'm relatively new to Labview and Versitand.

  Thank you.

  Richard

  You can work around this limitation by putting your orders and clusters indicators. Then set the cluster to be required or recommended to indicate whether contained controls are entered or parameters, just normal.

  

• How can I pass data between DIAdem and LabVIEW?

  Hello community,

  in fact I use a LabVIEW application to control a test system, collect data and store it in a file.

  DIAdem is executed (using ITOCommand) and then create a report (PDF).

  This works already.

  But also, I would like to receive a return value of tiara, a real number, as for example the register R1.

  No idea how can be achieved?

  Thank you!

  Espelkamper

  Declare records, variables in the script of tiara that store the calculated result. Read records in labview

• TestStand and LabVIEW treat differently polymorphics with instances with bodies of private classes.

  I have a class of LabVIEW and the class contains a method that is a polymorphic VI, and that polymorphic instances has. If I put the scope of Private, and the polymorphic bodies access to the public, then I can force developers who use the class to use the polymorphic VI (and not to call directly the instances). It's great. I like that.

  but...

  I have build a TestStand API that uses a polymorphic and instances as described above. I create a time of LabVIEW, with a type of call class member, and I target my class. TestStand does not support polymorphic VIs, meaning that polymorphs or its instances appear in the name of the Member list.

  This means that, to support my LabVIEW users and my TestStand users, I need to create two separate APIs, which is not a place of happiness to be. No matter who encounter this and found a solution? Or I'm looking at this wrong?

  It dawned on me later that we could actually change TS to be a static link to a particular instance VI via the polyVI. After all, you can manually select an instance specific polyVI. It would be just a way to declare in TS "link to this particular instance of the polyVI." Allowing the TS to say "I'm going through a public interface to join a private function."

  So instead of linking "A.i" you could bind to ' PolyVI.vi: A.i ".

• Passage of Variables in TestStand through LabView

  I have an error, I am developing a crush on the recall of database Options. I say TestStand what database to write. I am in him passing a variable and I get an error. Here is a description of the error.

  Here is the statement I use:

  DatabaseOptions recall that I use a statement that change the data of databases is stored.

  I have a VI that passes a string that represents the location of my data file, I want to use. I stored it as a variable in database called StationGlobals (it's currently a string but I tried the executable file and the way too with the same error).

  Parameters.DatabaseOptions.ConnectionString = StationGlobals.Database

  StationGlobals.Database has the value

  "\"Provider=Microsoft.Jet.OLEDB.4.0; Persist Security Info = False; Data Source = C:\\Users\\Public\\Documents\\\National Instruments\\\TestStand 4.2.1\\Components\\Models\\\TestStand Results.mdb;. » »

  There must be a problem with variables, because when I copy and paste what StationGlobals.Database in and use the following statement it works perfectly fine.

  Parameters.DatabaseOptions.ConnectionString = '\"Provider=Microsoft.Jet.OLEDB.4.0; Persist Security Info = False; Data Source = C:\\Users\\Public\\Documents\\\National Instruments\\\TestStand 4.2.1\\Components\\Models\\\TestStand Results.mdb;. » »

  Here is the error I get:

  Details:

  An error occurred calling "LogResults" in "ITSDBLog" of "ZNIUGOL TestStand database logging"

  An error occurred initializing a connection to a data binding.

  Connection string: "Provider = Microsoft.Jet.OLEDB.4.0; Persist Security Info = False; Data Source = C:\Users\Public\Documents\\National Instruments\\TestStand 4.2.1\Components\Models\\TestStand Results.mdb. »

  Description: [Microsoft] [ODBC Driver Manager] data too long name source

  Number:-2147467259

  NativeError: 0

  SQLState: IM010

  Reported by: Microsoft OLE DB provider for ODBC drivers

  Source: TSDBLog

  Error code:

  -2147467259; User-defined error code.

  Possible system error: unspecified error

  Geographical area:

  Step 'Results of the log to the database' sequence "Log to database" in "Database.seq".

  Please help I can not find a solution to this issue.

  Thanks a lot for any help

  Once more, the channels of Expression, stumbled to another programmer!

  Parameters.DatabaseOptions.ConnectionString is not a string but an Expression string and your assignment of an StationGlobals.Database (just a string) causes this error.

  Here's what I did to solve your problem:

  1.) StationGlobals (start and remove the leading "------"------"' chain of database") must contain NO beginning or end quote

  StationGlobals.Database = Provider is Microsoft.Jet.OLEDB.4.0;. Persist Security Info = False; Data Source = C:\\Users\\Public\\Documents\\National Instruments\\TestStand 4.2.1\\Components\\Models\\TestStand Results.mdb.

  2.) rappel Database Options use the following expression to define the Data Source

  Parameters.DatabaseOptions.ConnectionString = "StationGlobals.Database".

  There are other alternatives as stated in this link.

  http://zone.NI.com/DevZone/CDA/tut/p/ID/4793

  Good luck

  PH

• Manipulation of variables between Moodle and Captivate?

  What I want:

  -A highscore table that is stored in the SCORM package that I downloaded on Moodle.

  -It sets and gets the variables to and from Moodle (image below).

  

  Problem:
  -Currently, it records the table of scores and is there when I closed and reopened the game.

  -Every person has a different Highscores table. Everyone needs to see the same the highscore table.

  Note:

  -J' use JavaScript to manage the table of scores (set() and get() variables).

  If you know how I could do it, it would be a great help, because I can't find anything on SCORM outside quizzes.

  Thank you in advance.

  There is no way to do with SCORM. You will need to do something like the brothers e-Learning:

  How to create a ranking for e-Learning with Google (part 2)"eLearning brothers

• passing variables between CFSCRIPT and Javacript

  The example below is a very rough diagram of what I am triying to do but is there a way to do it with cfajaxproxy or something? Can we post or a link to an example please?

  < cfscript >

  name = "hulfy".

  < /script >

  < script >

  var myName = #name #.

  < /script >

  The easiest way is to use tags around your script tags cfoutput.  It will work for simple variables.  For tables, queries, etc., toScript() or cfwddx would be useful.  As far as I know, they do the same thing.

• Error during the update of variables a teststand through LabVIEW API

  Hello

  
  

• Passing variables between LabVIEW and TestStand

  Hello

  I'm just learning how to use TestStand and although there are a multitude of resources available, I always find me at a loss on how to pass variables between TS and LV, leaving me to think that there is one fundamental thing that I'm missing which is likely, given that I have a weeks experience with LabVIEW and a days of experience with TestStand.

  I took a glance to the example of 'Clusters' to the Code Modules in TestStand examples (I use TS 2016 if it matters) because I thought it would be quite ideal for what I hope. In this case, I hope to be able to pass a string (a file path) to LabVIEW and VI power take this string and use it as part of an order for the Exec.VI system.  Then, I would be able to pass strings back to TestStand to show the user if an error occurred, but I thought I should get the first part of work.

  I guess my question is what do I have to wait to see in clusters to the example of the Modules of Code? The Watch window displays all defined variables premise on which has the ContainerOut in the Variables pane, but I don't see any kind of update on facades (VI1.vi and VI2.vi) LabVIEW code. Should I be?

  I looked at a few other discussions of the forum here and here, as well as the document of the basis of knowledge here, but could not recreate their solutions. It seems that the connector pane would be a viable way to go, but I'm not sure on how we create and use effectively. According to this document , it makes it seem like it should be simple enough to makes these terminals, but I am still missing a key step. I was able to follow all the steps on the knowledge base document and run the sequence, but then had no idea if it worked or not; I have the report show me the values of the variables I put, but I have no idea whether or not he actually did anything with the LabVIEW VI, or how I could see that.

  Please let me know if you need further information or clarifaction everything I ask.

  Thank you for your time,
  JColvin

  Digilent, a company of National Instruments

  If you want to enter values, you must create a vi for instance dialog box

  

  

  The OK button will allow new values to pass to the output terminals.

  A Cancel button will pass just the original through the output values without alteration. The VI will close when either the OK button or cancel were pressed.

  Concerning

  Ray

• Localhost UDP connection between FCR and Matlab

  Hi all

  I have a question about the connection between Matlab and FCR UDP. My idea is to Exchange data between Matlab and Labview on the same computer.

  So I found the 'UDP Simple' of the FCR 2.0 sample project where periodically a datasample is generated randomly and sent to the remoteport 61557 local host. In the project a 'fractional number of string for transmission' is used for the transmission of data. The receiver of the sample project reads from the same port to receive the datasample.

  Now, I'm interested to read this simple stream from Matlab (just at first), however, it does not work and I'm not sure why. What I do in Matlab is the following (code Matlab)

  delete variables;
  u = udp ('127.0.0.1', 61557); % Of installation UDP Object
  fopen (u); open reading port %
  A = fread (u, 1);  % read an element
  fclose (u);

  With this code, however, I get a timeout by saying: "' WARNING: unsuccessful reading: the amount of data specified has not been returned within the time limit." "

  I'm not sure why this happens, maybe you could help me out here? I guess that the formet serving to VCF is not the same as in Matlab? Maybe the Terminators are not the same?

  See you soon,.

  Steve0

  Hey

  So, regarding the problem actually, I found the solution today. It was not the firewall, but a simple configuration in Matlab seting the UDP port. So the side of Matlab, to change the definition of udp object according to

  u = udp ('127.0.0.1', 'Thelocalport', 61557);

  If you have

  u = udp ('127.0.0.1', 'Thelocalport', 61557);
  fopen (u);

  A = fread (u)

  fclose (u);
  Delete (u);

  Who does the trick and you can read from the port. Then of course you say Matlab that you read from the "LocalPort" x, which I wasn't aware of.

  On the transmitter side, you simply:

  u = udp ('127.0.0.1', 61557);

  fopen (u);

  fwrite (u, '1');

  fclose (u);
  Delete (u);

  Here, you set just the port of transmiting.

  About the format of the data: I used the simple UDP protocol streaming Comms project where a random number is generated as a double, transformed into a string (ASCII values) and transmitted. At the level of the receiver, you get as much the UDP packet with the ASCII values that you must turn if you want to find the number.

  I hope this helps anyone having the same problem.

  See you soon

• Best way to pass an array between TestStand, CVI

  Hello

  I was not able to judge or to find the best practice to pass arrays between TestStand and CVI. I'd preferably done in pass pointer to array. For example, if I have a function written in CVI DLLs:

  int GetAverage (double* aBuffer, double aSize, double* aAverage)
  

  TS I have an aBuffer double array [100]:

  -I can't simply pass

  GetAverage (aBuffer, 100, &aAverage)
  

  - or, I can go:

  GetAverage (&aBuffer[0], 100, &aAverage)
  

  -The only thing that is TestStand accepts:

  GetAverage (aBuffer[100], 100, &aAverage)
  

  I don't think not good because the size is just repeated.

  I had no problem if I could write

  GetAverage (aBuffer[100], &aAverage)
  

  but the problem is in this case there is no possibility fo CVI to determine the size of the table, like sizeof (aBuffer) just return, sizeof (double).

  Can you provide me with advice for best programming practices in this case?

  Concerning

  RB

  Hello

  Just in addition:

  Is there another way to access the tables.

  Often, I use for this task, the TS-API. The only parameter you need is in this context of the sequence.

  Maybe you should also visit this example:

  TestStand 2010\Examples\AccessingArraysUsingAPI\UsingCVI\AccessingArrays.seq

  Concerning

  Jürgen

• How to share a variable between the Mathscript Windows and a Mathscript node

  Hello

  I'm trying to share (just) a variable between the Mathscript Windows and a Mathscript node. I don't know why, but the use of the "global" Matlab function makes the mathscript node output formats change.

  I'm looking for a "Mathscript RT V9.0.1 module" as it may seem, there is. French technical support have some difficulty to find...

  Hi patrick33,.

  The code that you have attached should not report an error, so it seems that something has gone wrong with your installation of MathScript. My best guess is that it is the problem that is described in this knowledge base article. Your signature says that you use f3 patch, which is a good start. But the KB lists some other steps to take when you see errors about MathScript, impossible to compile. Can you try the procedure described in the article and let us know if that fixes the problem?

  Thank you

  jattas

  LabVIEW MathScript R & D

• Interruption USB Raw: flow of data between USB Raw Device and Labview!

  I do the USB communication between device (Microcontroller) Labview and USB RAW. I did all the things like the raw driver OR USB and I am able to get the 8 bytes using getusbinterrupt.vi, but my application requires continuous data transfer between pc and microcontroller, inorder to achieve that I put continuous loop in the microcontroller, so it transfers the data of continuos on pc, (in this case e.g.0 to 255 and again from 0 to 255 and so on.) , but I'm not able to get increment of 1 as written in my program, instead of that I'm getting increment of 5 to 10... is it because Microcintroller is very fast as my pc? If so how can I get continuous data without breaks...

  I enclose... graphic instant with output vi this jump of the variable data... I run my vi continuously on mode...

  Like, I would also like to write to the device with labview, can you also suggest for this also? I read messages like:

  http://forums.ni.com/ni/Board/Message?Board.ID=170&message.ID=382144&Query.ID=445342#M382144, but I am facing the same problem as this user...

  Thanks in advance.

  MRS.

  26314362 wrote:

  I enclose... graphic instant with output vi this jump of the variable data... I run my vi continuously on mode...

  MRS.

  Run a quick code continuous mode is completely unnecessary.

  In your code you continiousely who and unregster events, it takes a while, maybe the following will help to improve the code:

  

  I don't know, but you might be able to reuse the event.

  Tone

• From the telnet session between calls of LabVIEW, TestStand

  TestStand, I'll call telnet.llb VI.

  In a step TestStand am opening a telnet session to IP address and the collection of the telnet (U32) connection. In the next step of TestStand, I pass the telnet connection to a telnet writing VI, but this error occurs.

  "Dequeue item to acquire Semaphore.vi:1-> Write.vi:1-> Telnet Write.vi.ProxyCaller Telnet"

  The telnet open, write, read and close the excellent work if I get the number of telnet in the same VI session. But I need to keep the session open between TestStand calls because a huge VI is not possible.

  Thank you

  Josh

  Verify that your adapter for LabVIEW has reserved the execution. If it is already, I don't know, you may need to create a parallel thread that keeps the session active.

  CC