Synchronizing 4 AI's and 2 AO's on two PXI-4461

[Anand87]

Hello,

I have two PXI-4461 cards. I will be generating two different swept sine from each of 4461 card to perform FRA (Frequency Response Analysis) on a UUT.I have on task for all 4 AI acquisition, 1 AO task for one AO channel of first 4461 card and another AO task for one AO channel on second 4461 Crad, So, I have 3 tasks:

1. AI tsk for 4 channels AI's

2. AO task for first 4461

3. Ao task for second 4461 AO.

I am able to synchronize 4 AI by acquiring all of them in a single task. But the problem that I am facing is that I am able to synchronize my AI task with only one AO task not both of them.Attachment shows the way I synchronize my AI and two AO tasks.

Please suggest what can be done

[Izzzzz]

Hello Anand87, 

In order to synchronize these two task I would take a look at this community example (it is also located in LabVIEW 2011's example finder) which displays the feature you need. Also, for your reference this KnowledgeBase Article and White Paper are great doucments to peruse in order to learn more about the various sychronization options for DSA. 

Best Regards, 

Izzy O. 

Applications Engineer

National Instruments

ni.com/support