AutoStart VeriStand using LabView project

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• test transistor using labVIEW project

  Hi all. I'm new in labview... pls guide me... Thank you...

  I am a student and I have to do a project on labview, my project is: "DEVELOPMENT OF AUTOMATED TEST SYSTEM for TRANSISTOR USING LabVIEW.

  I already installed labVIEW 8.5... can someone give me a tips to get started on my project?

  I need to find a coding for CC, Osciloscope and Transistor power...

  Thank you...

  Start by writing a project plan.

  What do you want the program to do?  What are the tests that you must run on this transistor?

  What are their contributions, what are its results?

  What are the series of steps you have to do to go from A to B?

  What material did you use?  You mentioned a DC power supply and an oscilloscope, which brands and models?  You use data acquisition cards?

• Is it possible to start the gateway of 2014 VeriStand using LabVIEW 2014 programmatically?

  Hello

  There is a reload of the Is-there-a-possibility-to-start-the-VeriStand-2011-SP1-Gateway because what worked in 2011 SP1 is no more in 2014.

  I've worn the code in the previous topic, do the same thing (calling "__cdecl Int32 StartVeriStandGateway (excluding handle Int32)" in "C:\Program Files (x 86) \National 2014\Data\NationalInstruments.VeriStand.Gateway.dll".)

  Do this from a .NET (console process or windows) program or directly from a node DLLS in LabVIEW 2014 seems to have no effect, knowing the .NET code worked in 2011 even when it is called from a Windows service.

  Is there a new way to do it?

  Moreover, the "NationalInstruments.VeriStand.WindowsRegistry.GetInstallationDirectory ()" method disappeared from assemblies.

  Best regards

  I remember before I saw this. There was a problem where the dll cannot run in the UI thread, but has no way to specify any thread, but the LabVIEW user interface thread. So, the solution was to put DLLS in a sub - VI, value than Subvi to run in the 'standard' thread and calls the value of the call to the DLL to run in any thread. See attachment.

• float to bytes conversion using labview

  in the project of the University to number of float serialy using labview. I don't know how to convert his individual bytes actualy I want to encode float in its float bytes. kindly help me in this regard

  Send "bytes" is usually done in the form of strings. Just use catalogued with the disconnected type entry (or use "flatten chain").

  To get started, simple would be to use the finder example in LabVIEW and search for serial communications.

• Is there a way to determine the equivalent ANSI C code of a Labview project?

  I'm a complete newbie to Labview.  I have this quite complex Labview project that was used to create a DLL that matlab may call to order my card PCI-6534 without having to know NIDAQmx calls.

  I am trying to find how to make these calls directly from Matlab NIDAQmx, but I do not get the same results when I call this DLL mentioned above, so I thought I would try to give a sense Labview projects live I begins to make sense of the general economy of the screw, but I would like to be able to run the project , step through it and perhaps see NIDAQmx orders (or something equivalent, so I can determine how to call NIDAQmx commands in Matlab).

  Is this possible to do?

  Thank you

  Jason

  Yes. The toolbar allows you to turn on highlighting so that you can run the VI and see the content of the son. You can put sensors on the wires. You can single-step through the code. This is explained in the help of LabVIEW under Fundamantals-> running and debugging screw-> Concepts-> Debugging Techniques.

  In what the question implied in the title of your message, don't you can directly convert LabVIEW C code in the development environment. Yes, there are tools to convert LabVIEW in C, but which is intended for microprocessors.

• How to program using Labview to an accelerometer

  Hello:

  I got an accelerometer which has digital I2C/SPI serial interface, so I bought a USB - I2C converter for data acquisition. I would like to know if I can use Labview to acquire data of com port and also program for the accelerometer to capture the data of the axis z. I have a box of white myDAQ NOR but SB. says that it is not an appropriate device to acquire before I2C/SPI signals. The datasheet of the accelerometer is in the accessory and the specification of the converter is this link: http://www.robot-electronics.co.uk/htm/usb_iss_tech.htm .

  I hope someone can solve the problem for me. It is best to use the software labview for me because most of my project work is based on that.

  Best regards

  The f

  Good and bad news.  You have an accelerometer that 'speaks' I2C or USB to I2C converter, so if you connect both of them, you can send 'orders' of your accelerometer easily of LabVIEW by using communication series live that's the good news.  The bad news is that it seems that you need to address your accelerometer using calls very low level, a work, I certainly don't want to face!  This crys on a 'pilot', a middle piece of equipment that does all the "hard work" to take a high level order ("Please tell me the acceleration") and he translates things your device includes (including the Setup program, records, calendar, packing and unpacking of the bits and bytes, etc.).

  Bob Schor

• Thesis using Labview software

  Good Aftrnoon.

  My thesis is based on software developed by using Labview.  Can anyone suggest the best way to write the main sections?

  For example, how to describe the experimental flow? My ideas have been use explanatory, take the labview code print screens describing what each of the subVIs. Does anyone have experience in this field?  Or if you can share a thesis based on LabView program written, it would be ideal for reference. Thanks in advance

  Kiryl

  If your project markers are not familiar with LabVIEW, then frankly they should not be monitored a LabVIEW project.

  In the same way that you would not be supposed to literally print code of entire base of a project in a written language, you don't need to go into the same level of detail with a LabVIEW project.

  You can document your code with system diagrams, annotate them extracts of interesting pieces of code, writing pseudocode to illustrate the feature.

• Deal with failure when using LabVIEW 2011 and DSC MODBUS communication

  I'm currently reading from operating records a PLC with MODBUS/TCP. I confirmed that the PLC will update the values and in response to a MODBUS communication correctly by using a third-party program called Modbus Poll. However, when I try to query the PLC using the LabVIEW shared variable engine, I am unable to read the values of the same addresses that I consult with Modbus Poll.

  My installation is simply to a PC directly connected to the controller via Ethernet without a router between the two. I'm using LabVIEW 2011 SP1 with the DSC module.

  I opened the Manager of distributed systems OR to display the State of all variables in the Modbus Library that I created, and I noticed that the ILO CommFail permanently the value 'true '. All other variables with a 'read' access mode signal "failure of process". I tried to restart the process and stop and start the local variable engine without success. I also restarted my computer several times to see if any services did not exist, but this does not appear to have solved the problem.

  Finally, I resorted to listening to communications on the network card I have the PLC connected via Ethernet using Wireshark and found that while Modbus Poll communicates with PLC, number of MODBUS and TCP packet is sent and received. However, when using only LabVIEW or the DSM OR communicate with the controller, there don't seem to be any communication on the network card.

  Something that may be interesting to note is that I could communicate with the PLC and to read values with the DSM just once, when I understood everything first what address I should be reading of. All of this has stopped working shortly after. Prior to this, 'CommFail' was not generally set to 'true' with my current setup. Thinking it was my firewall, I have since disabled my firewall, but this seems to have had no effect on the problem either.

  Any help on this would be appreciated.

  So, I thought about it. It turns out that the IP address of the server i/o MODBUS must be set to the address of the MODBUS slave, not the local computer. The address of the i/o MODBUS server is defined by the navigation in the Explorer window projects, expanding the variable engine shared library for MODBUS and right click on the server MODBUS (for example Modbus1) item and select Properties.

  In addition, the addresses seem to be shifted by + 1.

  Thanks for the tip so.

• There is a possibility to run Labview projects or to set them off from a batch file or if the exist and the ability to control labview or run it from an external application?

  Hi, I m a bit new in LabVIEW and I'd like to ask a few questions...

  -There is a possibility to run Labview projects or to set them off from a batch file or if the exist and the ability to control labview or run it from an external application?

  -One API PI or raspberry beaglebone exists for LabVIEW?

  -Power supply Wich can recommend you control with LabVIEW? (some chip solution witn 0 - 30v / 0 - 3A DC)

  Thank you very much for your advice!

  Best regards

  Elena

  Elena,

  I know raspberry, so no comment on that.

  For the rest:

  -Do you want to create tools for developers? If so, we must look in the API of project VI and VI server. If this isn't the case, please compile your application LV as executable and call this one using a batch file.

  -LV prefer specific supplies. LV is a programming language. There are several power supply providers (including OR) which provide directly the LV API for their power supplies. So, essentially, the approach is:

  1. choose food that serves your needs.

  2. check if the power supply has a standard interface for programming (such as Ethernet, GPIB, or if the power supply is PXI, is already providing a programming interface!)

  3. check if the LV API (so-called "instrument driver") is available for the device. In the case of a PXI system, get you a device driver (for example NI DCPower).

  4. check if the LV samples are available (for example in the Finder for example LV once you have installed the driver).

  Norbert

• How to implement the wafer map using LabVIEW?

  Hello LabVIEW Masters!

  I have a project which includes control and searching for information on a PROBER. One of the difficulties I have now is how to implement a WAFER card using LabVIEW. According to the requirements of my client, the element of pads varies between 6 k and 23 k. I guess that do everything (a = a ctl/indicator led) will be a hell of a task, especially on how to effectively manipulate each elements. Does anyone have a better idea on the way whose that?

  Please, I seriously need your help...

  Thank you and best regards,

  Dennis DG

  Hi Dennis,

  This wafer GerdW post card appears to me as a sort of histogram (for example http://www.ni.com/white-paper/4158/en#toc3);

  Altenbach post well this example that shows how to use a plot of intensity to create a 2d histogram:

  http://forums.NI.com/T5/LabVIEW/overlay-plots-as-intensity-graph/m-p/211222#M119248

  Learn how it works and try to adapt it to your specific task.

  Alex

• stop using LabVIEW

  I use two machines (computers) and two separate projects for a single system, I would like to stop using LabVIEW 2010 64 bit... Is - is this possible?

  Exec-vi as mentioned and checkout system use the back command "shutdown-s".

  /Y

• Unable to connect target RT in the LabView project

  Hello

  I use time LabView real-time 8.5 on a desktop PC. I see the target at MAX where I can change the network settings on the target and use FTP without problem. But it is impossible to connect to the target in a LabView project.
  The error of the target journal wrote:
  ####
  #Date: Monday, June 9, 2008 03:04:29
  #OSName: PharLap
  #OSVers: 13.0
  #AppName: PH_EXEC
  #Version: 8.5
  #AppKind: AppLib
  #AppModDate: 09/06/2008 06:55 GMT

  LVRT. DLL loads the address: 0x003EE000

  Can someone help me?

  Thanks in advance

  Hello everyone.

  The problem is solved! The reason of my problem is that LabView RT 8.5.0 supports no more than 2 GB of RAM installed on the computer, as described in this document.
  My RAM GB setting the things that were not possible before:
  -to connect to the target in a LabView project and deploy the code.
  -to activate the multiple core processor in the BIOS of the machine

  I said that the withdrawal of the USB keyboard is useful. Indeed with my keyboard plugged in, when I install other software as server VISA for example, MAX do not recognize the target automatically, I have to add it manually by specifying the IP address and I can not connect to the target in a project of LV.
  Unplug the USB keyboard (and other devices) to solve this problem.

  Good day...

• Sending sms using labview

  Hello!!

  It comes to my school project. I need to implement the design to send sms using labview. And I use iTegno 3000 modem and I have no idea where to start. Can someone has a basic idea for me? All the specific commands to use for the modem I use?

  Thank you very much for your help

  Good day! looking forward to all your kind reply...

  Your sequence of structures aren't absolutely necessary and are just getting in the way so delete.

  You do not have a phone number - the yyyyyy is not all correct and you do not send a CTRL-z character. You send the text "ctrl + z". Set the string to display hexadecimal constant and enter 1.

• Creating a LabVIEW project

  Hi all

  I was in charge of the creation of a basic gas distribution system using labview. I know that I need to create an IO serial server, shared variables and a few VI (operator VI, maint VI etc.). Don't know what controls are required if and how start.

  Would appreciate any help.

  Thank you.

  Dave,

  How to start any project (at least one project that will take more than 15 minutes) is through a deliberate and thorough design process.

  Start by setting the specifications that must meet the program/system.  Define inputs, outputs, functions or processes, specific such as the calendar, regulatory limits, security issues and requirements that what (and who) determines the success. Then the design of the program.  To-do lists, flow wagons, diagrams of State and other documents can be very useful.

  This is design from top to bottom.

  Sometimes backward is also important.  Here you can make small test programs or part which can become subVIs to determine how things actually work in the real world, or to demonstrate certain features.  GUI of the trial is often useful if end users have not been exposed to programs like this before.

  Finally, write the program.

  Lynn

• Client server of executable activex LabVIEW project with excel vba

  Hi all

  I submitted a ticket to support nor on this problem, but my deadline for this project is very close, so I would like to ask the community to see if someone has encountered this problem before (I hope it's ok that I'm doing this!). I did a fair amount of forum-scouring, and I didn't know this even discussed problem.

  I built a labView project which is essentially in the material data and
  preforms various visualizations and transformations on the data. A bit of the
  Screws in this project are available by VBA Excel as a Server ActiveX with LabView and
  Excel as the customer - and it works! I recently discovered I would need to do a
  executable version of my project, so I'm now trying to figure out how to do the same thing
  with my executable file as the server instead of LabView. Here's a simplified version are
  My VBA code:

  Void Button1_Click()
  Dim lvapp As MyServer.Application
  Dim vi MyServer.VirtualInstrument

  Set lvapp = CreateObject ("MyServer.Application")
      
  VI the value is lvapp. GetVIReference ("Main.vi", "", True)
      
  Sheet1.cells (1, 1) = vi. GetControlValue ("Path")
      
  lvapp. Quit smoking
  End Sub

  I replaced LabView here with the name of my server. The code
  failure of the CreateObject method with the following error:

  Run-time error '13':
  Type mismatch

  Things, I'm pretty sure I'm doing it correctly:
  -L'application is configured as an ActiveX server in the build options
  -J' ran the VI once and close/re-open it just after each build before trying the
  worksheet
  -In excel, VBA method is configured to reference the type library of the server.
  -J' have LabView itself closed when I run the .exe

  Thank you

  Alex

  My versions and such:
  Software of NEITHER: LabVIEW version 2012
  OS: Windows 7

  It's interesting - I'll have to look into the issue. In the meantime, I found a solution.

  It's quite mysterious, but it seems that all I had to do was make sure you only the type library of the server executable has been referenced in VBA (no LabView or OLE type library) and declare the variable app as object, rather than MyServerName.Application. Honestly, I have no idea why this works, but it does. Also, I learned that you need to use the executable file paths, which are a little different than the paths of project files.

  Thank you

  Alex