Return the execution of DLLS in Labview data table

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  I need a function to return the lines
  
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• How to transfer data from a DLL Delphi pascal class to a LabView data cluster?

  Hi all

  I have the following problem:

  I use a dll written in Delphi Pascal to transfer data to LabView by using the "Call library function node".

  My Delphi dll contains this class:

  TFlash = class
  Fi: TFileInfo;
  constructor Create;
  procedure LoadFi (Filedir_and_nametring);
  end;

  TFileInfo = record
  IDX:smallint;
  IdxLstSpl:array [0.4] of longint;
  Ms: Word;
  [0.4] SP:array of the word;
  end;

  I created the record datastructure of TFileInfo in a cluster of LabView to have the 'same' variable.

  My plan was to call a DLL Deplhi function with the "call library function node" and pass the address of the folder TFileInfo, so the data would be transmitted to the cluster of LabView.

  When I do a simple delphi dll function as this works because I only spend a small integer to Labview (without reference to the data structure):

  ...

  var data: TFlash;

  ...

  function GetNrOfRows(FilePath:_string):integer; STDCALL;
  Start
  Data: = tflash. Create;
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  Result: = Data.Fi.Idx;
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  When I try to use this procedure instead of the above function, in order to pass the address of the data set structure complex 'Data' (TFileInfo), I am unable to get the information of 'Data' in my Labview cluster:

  procedure LoadFileInfo (FilePath: string;) DataPointer: Pointer); STDCALL;
  Start
  Data: = tflash. Create;
  Data.LoadFi (FilePath);
  DataPointer:=@Data;
  end;

  Parameters of call library function node:

  -stdcall (WINAPI)

  -Run in the UI Thread

  -Function prototype: void LoadFileInfo (PStr FilePath, void * DataPointer);

  * DataPointer--> Type: "adapt the type" and the format of the data: "pointers to the sleeves.

  * FilePath--> Type: 'string', format of the string: "pascal string pointer.

  I'm struggeling with this problem for almost a week now and I can't really find a solution on the forum or google.

  I also read the following posts:

  http://forums.NI.com/NI/board/message?board.ID=170&message.ID=229930&requireLogin=false

  http://forums.NI.com/NI/board/message?board.ID=170&message.ID=77947&requireLogin=false

  http://forums.NI.com/NI/board/message?board.ID=170&message.ID=51245&requireLogin=false

  (or did I miss something in these messages?)

  Hope my explanation is clear.

  THX

  A little further:

  Seems like it's not possible to pass data from Delphi to Labview through a DLL when I create a cluster with 2 bays in it in Labview.

  This part of Delphi, I've had to make in Labview:

  TFileInfo = record
  IDX:smallint; {integer; Convert tool}
  IdxLstSpl:array [0.4] of longint;
  Ms: Word;
  [0.4] SP:array of the word;
  end;

  Instead of using 1 cluster with all the different data in it, I did a unit (1) with my 2 items (smallint and word).

  To pass my data in my tables from delphi to labview, I created another group (2) in the unit (1) with 5 elements of longint (because my delphi is going to 0.4) and another group (3) in the unit (1) with 5 Word elements.

  Right-click on the unit (1) and the clusterorder in the right order. First the smallint, then the longint table, then the word and the Word table.

  When I then use this code in my dll Delphi, IT WORKS! :

  procedure LoadFileInfo (FilePath: string;) DataPointer: PtrTFileInfo); STDCALL;
  Start
  Data: = tflash. Create;
  Data.LoadFi (Copy (FilePath, 2, length (FilePath)-1));         --> I need to cut the first part of the pascal string because it's length, and I only need the string itself
  DataPointer ^: = Data .fi;       --> pass the record structure to the cluster of Labview
  end;

  Thanks for the info Ralf!

• Dashboard of the LabVIEW data recover indicators of the poll

  Hello

  I have attached my entire project, including the error messages that I receive. I have my labview VI to put in place to have 3 different screws. My entries, my global entries and my "side". I created my web server and all the controls and indicators that I linked. However, when I try and run the dashboard of data project, all my indicators have error signals indicating that he "could not connect to the server. I have no idea what I'm doing wrong. Any ideas?

  The reason why this does not work, it's that your web service code is not quite structured reason. When you call a web method in LabVIEW it does is run the VI related to this method. In your case you have mapped to the URL http://host:8080/FINALCOAST/COAST.vi SIDE, and then you have a poller to web service linked to this URL. When you run your dashboard the poller accesses this URL, which causes the web server of LabVIEW run COAST.vi. If you look at COAST.vi, however, you will notice that what he does is run a loop that runs until the stop button is pressed. Is not supposed for a web method. He has no one to press the stop button. In fact, there is no user interface for anyone to interact with at all. This means that COAST.vi will work forever. Finally, data dashboard gave up and closes the connection because it should not take long for the web server that responds.

  So what is the correct way? It depends on what you're trying to do. In your case, it seems that you take just a bunch of inputs, do some calculcations and producing a bunch of outputs. You could do that in a VI with the method of a web that has just a bunch a bunch of outputs and inputs. In this case, you use just a web service calling (button) connected to one of the methods. Because this method has two inputs and outputs, you will get two entry and exit of Terminal ornaments around the button that you can use to connect to your commands (entered) and indicators (outputs). When you press the button it brings together the current values of the controls and those on the server to use as inputs to call your VI sends, and then he retrieves the results from the server and puts them in your indicators. In my example attached (see the file updated the dashboard) I show you how to do this. Note that I also modified the code of VI to create a Subvi for calculation of Basic code, and it is this VI which is used for the web service. This VI has no loop in him, so he just runs once with data values and returns the results.

  If you want to rather than having a continuous process that is continually measures your system in real time you need another way to access this data from a web service. It seems that that's what you were trying to do here, even if you use data in real time. Suppose that you were, however. In this case, you were a little close, but we need to make some changes. First of all, the running process doesn't have to be part of your web service. It may be, but it's a little more complicated. Instead of this, your process running (COAST.vi) can be just a regular VI running in LabVIEW. You just open and press run as usual. However, you want to only change VI to share its data with other processes. You have tried to do by using globals. Globals allow you to share data between the screws running in the same process, but web services actually run in a process completely separate (in the web server), so you'll need something else. A drop-in substitute would be shared network Variables. You'll see that in annex changed code I replaced your globals with shared variables. Then in your web service if you just use the same shared variables. Network shared Variables allow you to share data between processes (even on machines on the network) so that you can easily access the same data to both your VI running and your web service screw I modified your COAST.vi for this (and he calls the same Subvi from the calculation of the kernel).

  In this case, you could do just a single method "inputs" and only one "exits" method, but it might be better to break up to the less distinct modes which include the strongly bound values just to make things a little neater. It can be tedious to deal with a large number of terminals.

  Alternatively, once you use shared variables you has actually connect your controls and indicators on the dashboard of data directly to these shared variables. This has the disadvantage of requiring more ports to be open through your firewall (and you can not use security as you can do with web services), but for the use of internal network, it is easier to implement. To do this, just run your VI as before, and then as soon as it runs you can select each control or indicator in the dashboard of data, press the small button below, choose 'Shared Variables' and look for your variables on your machine. In this case, each control is directly bound to the variable, and so there is no need of a button. Changes that you make in the dashboard data are immediately placed on the server through the variable sared, and your VI (which is still running until you press stop) will see the new value, update the outputs and then repel these new values to the dashboard of data via other shared variables.

  I did not create a dashboard for the last two approaches, but if you may not know what I'm talking about, then I can create examples for those as well. The screw and the project must be configured to work in any case, if the only difference is in the configuration of the dashboard.

• Cannot run Simulink DLLs at the same time that the execution of the target time real VI

  Hello

  What I try to do is run a dll created in the Simulink model to control some servo through a CompactRio 9014.

  For the moment, I managed to create three screws

  (1) in the FPGA target that performs the PWM channel desired

  (2) which takes the value of a variable that contains the desired position and network that feeds to the 1st VI

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  I can get these three work screw and the servo controlled, but when I try to update the value of the network variable using simulation, by deploying to the target of RT simulation and running, he said:

  ' Access denied: this objective is already used by another host or project. »

  I guess that's because the project is already connected the cRio, so I unplug and am able to deploy the model files.

  However, when I try to run one of the screws in the Targer RT as well as simulation I get the error:

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  With a large number of missing screws...

  I'd do this wrong, i.e. is there a simpler way to control inputs FPGA using the simulation, or is there something I have missed?

  Thank you

  Geoff

  Hi Geoff,

  I think I understand what you're trying to do and what you've done so far.

  If I'm not mistaken you have passed through the SIT connection manager, set your target RT (select DLL, mappings and hardware i/o) and this is his 'magic '.   If this is the case of look for the project pilot LabVIEW which was created by the SIT connection manager.  This should live in the same folder where is your DLL.  Open the pilot project, search for VI driver and open it.  Then go into the Sub - VI # 5 has with the name of the loop rate Base.  It's the Subvi who reads/writes on the material and the reads/writes the data to the DLL/OUT model.  If you want to read the output of your model and then manipulate the data that is where you need to add your code.

  Inside of this Base rate loop VI there is a Subvi with number 4 and called SIT take model Timestep.  This VI is the one who makes the call to the DLL model.  The output of this VI is your data from the model.  This data goes into slot - VI # 5, which is responsible for the drafting of these data to the material.  Since you want to manipulate that data from the model, you need to recover data from the wire coming from the Subvi 4 (SIT take model Timestep) before it gets to the Subvi # 5.

  In this VI of Base rate loop, you will see that there are a few empty block structures.  These images are for you to put any code you want.  The reason is that any changes you make to the driver VI and subVIs that aren't inside of these frame structure will be lost if you decide to go in the connection manager to sit DOWN again and make some changes.  The VI pilot gets new script whenever you do something in the SIT connection manager.  Whatever it is inside these frames will not be erased.

  So, if you have a code you want to run in parallel to the simulation you just have to drop it inside this driver VI.  Very probably within this Subvi 5 (Base rate loop). To add your code just drop the VI in one of these settings and make any changes that him so that he can read the data in the model.    Furthermore, the model (Subvi 5) data in a table.  For the index of each element in the array and its meaning look for a file in the same folder where the DLL is named readme.txt ports.  This file has a description of the inports and small ports and their indexes.

  This VI driver is called when run you the host VI so you won't have to run sepearately.

  Kind regards

  Ricardo

  National Instruments

  Systems engineering

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  Dear Sirs and Madams,

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  My next test was to use the "call library function Node", as well as documentation in the .h file, but it didn't work. I don't know if I missed something or the 32-bit .dll file does not work on 64-bit operating system. Could you please help me to use the "call library function node" to investigate the weather that the 32-bit dll does not work properly?

  Please find the file h., (html.zip) documentation of the h.file and the VI, it must indicate the position, attached.

  Best wishes and thanks in advance!

  
  

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  Hello

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  2 did you a recent software or hardware changes to the system?

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  Because you tried to reinstall the drivers for video card, you can try to perform a clean boot and check if it helps.

  A clean boot to check if startup item or services to third-party application is causing this issue.

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• execution of DLLs. Error loading cbbxw.dll. the specified module could not be found. -what it means and how do I get rid of him?

  execution of DLLs. Error loading cbbxw.dll. the specified module could not be found. -what it means and how do I get rid of him?

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  Malware scan:

  http://www.Malwarebytes.org/MBAM.php

  Malwarebytes is as its name suggests, a Malware Remover!

  Download the free Version from the link above.

  Download, install, upgrade and scan once a fortnight...

   

  How to use Malwarebytes once it is installed and updated:

  1. open Malwarebytes > click the update tab at the top > get the latest updates.

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  6. you will now be at the main scanner screen. At this point, you must click on the button toview the result .

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  9. when MBAM has finished remove the malware, it will open the scan log and display it in Notepad. See the log as desired, and then close the Notepad window.

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  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

  If the error persists after scanning, use the program to out startup:

  http://TechNet.Microsoft.com/en-us/sysinternals/bb963902.aspx

  This utility, which has a knowledge of auto-starting locations of any startup monitor, shows you what programs configured to run at system startup or login and that the entries in the order of processing windows. These programs include those in your startup folder, Run, RunOnce, and other registry keys. You can configureAutoruns to show other locations, including Explorer shell, toolbar extensions, helper objects to the browser, Winlogon notifications, auto and many start-up services even more. Autoruns goes way beyond the MSConfig utility bundled with Windows Me and XP.

  See you soon.

  Mick Murphy - Microsoft partner