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Found 11 results

  1. I am implementing a TCP connection between MyRio(client) and Python(server). The goal is to send data from the server to the client, perform some calculations, and send the result to the server. I need to keep changing the data being sent to the client. I noticed the first data works fine and the result returned to the server, but the client could not read subsequent data. I debugged and was able to detect that the error is coming from the first read function is the "Reading values subvi" but I don't know how to correct it. How do I go about it? I have attached the files below. Readin
  2. Hello, I'm trying to send data from my RPI b+ to labview and store the information in a spreadsheet, right now the data I'm using is just a sawtooth generated in the python code but eventually it will be sensor data adquired via spi, the data comes at =~ 6-7khz but the time it takes to send the data to labview is much greater, I fear the circular buffer I intended to use to store the data before sending it via tcp will get filled pretty fast. I'm not very experienced in either python nor Labview, I was wondering if i could get some advice in the optimization of the code. I attached
  3. https://www.winemantech.com/blog/testscript-python-labview-connector From release blog... Summary: Test engineers typically add manual-control screens to LabVIEW applications. While it would be helpful to repetitively execute varying parts of those manual-control screens, LabVIEW is not optimal for dynamic scripting, or on-the-fly sequencing with flow control. (Imagine editing the source code of Excel each time you wanted to create a macro.) And while Python is built for scripting, it requires advanced custom coding to interface with LabVIEW. Announcing TestScript: a free Pyt
  4. Senior Engineer Cupertino, CA 95014 1 year and extendable Domain: Consumer Electronics Must have : Python, C/C++ (preferably Python), LabView • Work closely with the design team to analyze the requirements and help with defining the test criteria • Work with the team to develop the automated functional and regression tests using apple’s testing framework. • Actively participate in code reviews conducted by the developers • Evaluate existing testing methodologies and suggest new techniques that will help us deliver high-quality features faster. •
  5. Hi everyone I'm doing some preparations for my future project, which has to display a bunch of different measurements on the 3d graph. Those measurements will be taken from IMU sensor and GoPro camera and based on what the user selects they should appear ideally on the same picture. The data from the IMU sensor will display the way that the object went and will be something like this. The images from the GoPro should be displayed after user clicks on some part of this 'road'. I'm trying to use Blender to creates a nice renders of this "road" and paste images or video from GoPro ect.
  6. How do you decode, unpack a flattened string in python which was sent by a LabVIEW TCP server? I want to exchange data via loopback. Therefore I take a sine wave and flatten it to string and sent over the network Simple TCP - ServerSINE.viSimple TCP - ServerSINE.vi. Then I have to decode the incoming data in a way that I have the correct numerical values like when I plot them in LabVIEW. I did this so far in python_client.py but the values are wrong. Does anyone know how to work with the transferred Data in python?
  7. Jupyter (formerly known as IPython) is a language-agnostic architecture for Interactive Computing with a nice interactive notebook frontend. It is a very powerful project and it is increasingly widely used. It is becoming the go-to tool for many Scientific Computing and Data Science workflows. It is glaringly missing a LabVIEW kernel, however. See here for a list of available kernels - https://github.com/ipython/ipython/wiki/IPython-kernels-for-other-languages. I know that I would use a LabVIEW kernel regularly in Jupyter (inline with some Python, Julia and Bash scripts) for hardware c
  8. Hi, I try to use LabPython with Python 2.7.8. After some difficulties in the beginning I am now able to run simple scripts and also import certain modules, for example the following: import numpy sampling = 1/timestep millivoltage = numpy.std(voltage)*1000 But if I now try to add a def statement (like the one below) to the script, the VI gets stuck at PYTHON Execute Script (if it is called) or throws a ZeroDivisionError (if it is just added but not called in the script): def test(): return 0 Are there certain things that are forbidden when using LabPython like certain statements?
  9. I want to use the Python extension libs such as ROOT (http://root.cern.ch/drupal/content/how-use-use-python-pyroot-interpreter and http://root.cern.ch/drupal/content/production-version-528), but it is strange for me to use the labpython. I write a demo.py to import ROOT(just like this "from ROOT import gROOT, TCanvas, TF1") which is running in LabPython, but it seems to crash for LabVIEW, but it can be used outside of LabVIEW if python it in the command line. And If I run the python script without ROOT lib, it is normal in LabPython. How can I solve it? My python version is 2.6, th
  10. I've posted this in the NI forums, but I thought I might get some more traction here... Does anybody have any ideas on a way to stream commands to a python console? A little background on the issue: I am able to control instruments in a system through a .dll that I call using python. I have already implemented a VI that can create a script "on the fly" and execute it to perform simple commands. The problem is that this creates a new instance of python every time I execute a command. It would be very advantageous for me to keep python running and only stop execution when I'm done sendin
  11. Hi All, On a system we're working on, we are allowing the operator to enter a python script. The script is executed with LabPython, which seems to work well. We implemented the script editing with ScintillaNET (http://scintillanet.codeplex.com/) We also implemented pre-execution script checking (I don’t know the right term for this) with pylint (http://pypi.python.org/pypi/pylint) Attached is an example of our implementation. I’m posting this in case anyone might find it useful. A couple of items that could be improved 1) This implementation used system exec to run pylint, could pyl
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