communication of 64-bit application with 32-bit application on a PC?

In a project of image processing, we started using x 64 LabVIEW to meet our need expanded memory. However, in order to communicate with the production plant is integrated in the machine, we wanted to use a Profibus DP - COMSOFT PCI card, which is a no x 64 support yet. Since we try to keep everything in a PC we thought we might be able to get the feature Profibus-Associates running in an x 86 application to talk to the x 64 running simultaneously on the same PC. In this way, simply using VI server, us just transfer the data from one application to another and vice versa for interprocess communication.

My first test was this:

  1. start a VI in x 86 instance of LabVIEW
  2. load the ref this VI VI in a VI in a x 64 LabVIEW instance
  3. identify the necessary element of the x 86 FP umpires
  4. read the values of the elements of x 86 via the property node

The two described screws are attached. The result is that LV x 64 receives an empty array of elements of FP of the VI x 86-load ref. What I also realized: it is not possible to transfer objects from an x 86 x 64 BD BD. This brings me to the conclusion that what we had planned does not work. At least not the way experienced.

Is it possible at least that it will work on 2 different PC? Or maybe the shared (local) variables are an answer (I have never used before)? Perhaps one of the screws must be transformed into an executable file to be able to distinguish between instances of the application of different. Advice on this topic are appreciated. Alternative: If someone knows of a material Profibus DP can be controlled directly through LabVIEW without the hassle of the OPC, which was x 64 support, please share your knowledge.

Thank you very much.

comrade, Berlin, Germany

Dear comrade,

If I get the right idear, want to share data between LabVIEW 32-bit and 64-bit Version. Fortunately I have LabVIEW 2011 SP1 (32-bit & 64-bit) running on my Windows 7 64 bit. I think using VI-reference will not work in this case

I have prepared projects associated with your questions:

The first point that you mentioned is to dynamically load a x 86 - VI in x64VI: this could be addressed through the configuration of the servers-VI versions of LabVIEW, working on different network ports. Therefore you must determine your VI server settings (Tools-> Options-> VI server), for example data via the TCP/IP Port sharing your x 64 (x 86) for example: '3336'

If you call the VI by reference, you must also open an application on the server of VI reference and then use open VI VI reference to open the specific VI that you want to call:

Regarding the value of sharing of variables I would say to create the network publishes the Variables (VAN).
Here, you find a short summary on the help of LabVIEW network Variables: http://zone.ni.com/reference/en-XX/help/371361H-01/lvconcepts/ni_psp/.
In addition, I provided the link to a white paper that illustrates the use of network of Vars: http://www.ni.com/white-paper/4679/en

The important is that until you can use the Variables, you must deploy them, so you have to right click on the lvlib in the project and say deploy all, demonstrated in the picture below.

If all goes well, it is what you are looking for?

If you have additional questions, do not hesitate to contact me.

BR

romi_wo

Tags: NI Software

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