How to transfer Variable data from Labview to C# code and also reverse way.

[ketulpatel]

Hello

I am a Student and rite now i am doing my thesis work on Labview with controlling the robotic Arm. i have a C# program which is able to get the Spoken Speech commands From Kinect(XBOX360) Camera and my robotic arm is controlled by a Labview Program, now  i want to interface between C# Program and Labview program. I want to recognize a spoken word using C# program and then i want make my arm working with labview program according to the spoken word and also send the feedback to the C# Program from Labview.

In-short i want to send the data from a C# program to Labviewprgram and also from Labview Program to C#.

Looking forward to see some interesting answers

[davidpcl]

LabVIEW integrates really well with .NET these days - have you done a search for .NET in the LabVIEW examples - there's a few in there to get you started, but in esssence calling a .NET assemby from LabVIEW is really not much different from C# - you need to call a constructor for the class you want to use and then using property nodes and invoke nodes you can access the class' data and call public methods - these functions can be found under Functions > Connectivity > .NET on the LabVIEW palette.

Only thing that can be a pain sometimes is using native .NET objects, that's where you have to be a bit clever sometimes, but otherwise it's not particularly difficult.

[Mark_Yedinak]

I would recommend using a simple TCP server/client model to pass data between the two programs. Another alterative would be to create a dll which could be called in both languages that would be able to pass the data. this might be a bit trickier since you will need to find a way to store the data in some common location both could access. the TCP method would work quite well. Create a very simple protocol to pass the data. Generally something along the lines of the data length followed by some type of identifier followed by the data itself.

[davidpcl]

Just to add, if you're looking to transfer data between an asynchronous LabVIEW execution, and an asynchronous C# execution then there are various ways of doing this such as TCP/IP sockets, .NET Queues, I believe that you can use network shared variables in .NET although you may need Measurement Studio to do this, WCF I'm fairly sure you can use, but that might be a bit heavy weight for this application.

I would probably go for TCP/IP sockets as they are very easy to setup both in LabVIEW and .NET - but sure there are many other ways to skin this Cat!

[ketulpatel]

Ok...Man i will try this way...will update if getting some positive results