how to replace extra local variables

[Broken_Arrow]

DFGray,

Can you provide, or point to, a demo showing how to use New Data Value Reference to communicate between two loops?

Thanks.

[Norbert_B]

From the LabVIEW 2009 help:

You also can use a data value reference to store data without creating extra data copies. Data value references are slightly more efficient than queues but have no timeout options. Instead of transferring data to a queue, you can create a reference to data and pass around the reference. To operate on the data, use the In Place Element structure. The Data Value Reference Read / Write Element border node accepts a data value reference as an input, allows you to operate on the data within the In Place Element structure, and replaces that data in the original memory space.

Attached a small example.

hope this helps,

Norbert

[Edit]: Correction done in example.... 

Message Edited by Norbert B on 08-21-2009 02:55 AM

[Norbert_B]

Information about the Data Value Reference is also already on the forums, please see this link 

Norbert 

[Broken_Arrow]

Very nice, thanks Norbert.

[zainudin_jaafar@nuclearmalaysia.gov.my]

hello Mr.Patha,

i also had the same situation, please guide me, thank you

zainudin

here is my vi

[zainudin_jaafar@nuclearmalaysia.gov.my]

i'm sorry, subvi for the main vi

[zainudin_jaafar@nuclearmalaysia.gov.my]

here another link to main vi

[zainudin_jaafar@nuclearmalaysia.gov.my]

,,some more call vi

[jareds]

Zainudin,

The way to get around using local or global variables changes depending on how you're using them. If you're using them to pass data, then the posts by DFGray should explain the options.

If you're using them for control of your application, then the best approach will probably be a state machine. You can also use a cluster with all of your settings and pass it through a shift register to the different loops.