Using LabView server , is it possible to use the multicast protocol to send VIs to clients using Run Time Engine?

[Federico Marangoni]

I need to know if it is possible to configure Labview web server to send remote control information with multicast protocol

[altenbach]

Well, it won't be the "web server", because web traffic is TCP and multicast requires a stateless protocol such as UDP.

LabVIEW 7 and later include multicast support in the UDP palette ("UDP multicast open") so you should be able to to implement multicast communication with your own code.

(I don't understand your title "... send VIs to clients...". Could you clarify?)

[Federico Marangoni]

I know that by means of a web browser it is possible to control a remote panel using the run time engine software.
So remote clients are connected to the labVIEW web server to interact with the remote panel.

I'd like to know if it is possible to configure LabVIEW web server in order to use UDP multicast protocol, instead of TCP unicast, while transferring data to clients.

[rolfk]

Federico Marangoni wrote:
> I know that by means of a web browser it is possible to control a
> remote panel using the run time engine software.
> So remote clients are connected to the labVIEW web server to interact
> with the remote panel.
>
> I'd like to know if it is possible to configure LabVIEW web server in
> order to use UDP multicast protocol, instead of TCP unicast, while
> transferring data to clients.

HTTP which is used for HTML is TCP/IP based and not UDP so there is by
definition no way a web server could use UDP communication. If you mean
that a web server can handle multiple clients that is another issue
which is inherently part of the TCP/IP protocol. But in the case of the
Remote Panel functionality you need the according nu
mber of NI Remote
Panel licenses installed on the Server, before the server will actually
allow more than one client (if you have the FDS license) or 3 (maybe
that are 5) (for the PDS license) to connect.

Rolf Kalbermatter