Data transfer

[clecio]

What is the best way to transfer data from a RT controller over ethernet to a host "vi"?

[jgcode]

It may not be the 'best' but 'a' way is to use Network Streams:

http://zone.ni.com/reference/en-XX/help/371361H-01/lvconcepts/networkstreams/

http://zone.ni.com/reference/en-XX/help/371361H-01/lvcomm/ns_networkstreamspalette/

ShaunR also has a library in the LAVA-CR that would be worth checking out - but I'll let him comment wrt your question.

Cheers

[Roderic]

What kind of data are you willing to transfer? You can also use STM, create your own TCP stream, or if you want to transfer files you can use the FTP protocol.

[JamesMc86]

Check out the cRIO developers guide at www.ni.com/compactriodevguide. It has a whole chapter on this, even if you are using a different RT target the same should apply.

Cheers,

James

[Nitin Singh]

the best way to transfer data over RT platform is RT FIFO or shared variable enabling rt fifo, from host to target.

good luck,

nitin

[JamesMc86]

Hey Nitin,

Do check out the guide as well. Both of those are good techniques but it depends on the type of data you are transferring that will decide for the best on a case by case basis. For example if you need to stream continuous data the RT FIFO is the best inter-process but then over the network then network streams are much better than shared variables. There is rarely a catch all technique.

Cheers,

James

[nitin_123]

Hi all,

 

Can any one tell me how to save data comming from CRIO to a text file???

 

Thanks & regards

Nitin

[Wire Warrior]

That depends on the mechanism being used to transfer the data.  Is it serial? TCP/IP? FTP?  Once you answer that use the Example Finder to look up the protocol type along with log to file and you should see some examples you can use as guides for building your own program.