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From: JordoTheGreat on 7 Nov 2006 11:10
Hello thescar,

 

Thank you for contacting National Instruments and sorry for the delayed response.

 

The fact that both are written using a DDE server may or may not cause conflict? Who wrote the subVIs? Do they use code interface nodes (CIN)? If so, does the smartDDE and FlowDDE call the same .lsb file? If yes, then you shouldn?t see any conflicts and like you mentioned (start, check, poke,?,etc) will be the same.

 

Now, as a suggestion, if your application needs reliable synchronization of data transfer, you may want to use TCP/IP instead because it provides queueing, acknowledgment of data transfer, and support for multiple connections at the driver level.

 

If you are able to, I would really recommend taking a look at the following application note on DDE in LabVIEW

 

<a href="http://zone.ni.com/devzone/cda/tut/p/id/4531" target="_blank"> http://zone.ni.com/devzone/cda/tut/p/id/4531</a>

&nbsp;

Thanks again and if you need any further clarification, feel free to send us a post!
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