TCP

[Fala]

Hello
I have a problem with TCP (LabVIEW 4.0.1).
I have two computers in network.
I read data from board AT-MIO-16-L9 [computer 1], while a
TCP Listen listens for a connection.
I have a program on computer 2 (Simple data client.vi),
it uses TCP Open Connection to initiate a connection, then reads the
incoming data, and plots it on a chart.
When I stopped Simple data client.vi and start again I cannot
make connection. Is it possible ?

thanx in advance
best regards
Greg

[Cyril]

Hi

To establish a TCP connection with a remote port, a 'TCP Create Listener' followed by a 'TCP Wait on TCP Listener' can be used. However, if the connection is closed with a 'TCP Close Connection', a new connection cannot be established with the same port unless Labview is closed down.
If you would have had a more recent version of labVIEW, there's an example on the web that allows to reconnect to a TCP connection without closing LabVIEW.
I'm still giving you the links:
http://zone.ni.com/devzone/explprog.nsf/6c163603265406328625682a006ed37d/8e52fb6a9c13a4e38625670d005b16c1?OpenDocument
http://zone.ni.com/devzone/explprog.nsf/6c163603265406328625682a006ed37d/c0888cf95e6c19c88625694c0076bde5?OpenDocument

Regards,

Cyril Bouton
Applications Engineer
Nation
al Instruments.

[Fala]

Cyril wrote:

> I'm still giving you the links:

[cut]

Thank you very much.

When a connection is established I can read and write data (1D-array)
to the remote application Can I write and read 2D-array ?

best regards,
Greg

[Cyril]

Greg,

Instead of reinventing the wheel here I'm just giving you a link to another discussion that gives a lot of tips on how to do that.

http://exchange.ni.com/servlet/ProcessRequest?RHIVEID=101&RNAME=ViewQuestion&HOID=506500000008000000CB2A0000&ECategory=LabVIEW.LabVIEW+General

Regards,

Cyril Bouton
Applications Engineer
National Instruments

[Kami]

Hello , i have problems with the conection between my PC and IGW/400 CAN via WLAN.

I dont even know where exactly the problem is? may the problem is the configuration of the IGW/400-CAn or by my tcp.vi.

I try to connect the the IP and port if IGW/400 with the tcp conector, but unfortunatly it dose  not work.

Maybe some body know about this problem.

Anyway best regards and thanx in advance

Kami

[Kami]

 

Hello , i have problems with the conection between my PC and IGW/400 CAN via WLAN.

I dont even know where exactly the problem is? may the problem is the configuration of the IGW/400-CAn or by my tcp.vi.

I try to connect the the IP and port if IGW/400 with the tcp conector, but unfortunatly it dose  not work.

Maybe some body know about this problem.

Anyway best regards and thanx in advance

Kami