Thank you for contacting National Instruments.
If I understand your question correctly, you are trying to configure your PXI-4461 as an analog output and the PXI-4472 as an analog input.
If you are interested in using LabVIEW or CVI for this, we have several examples available on the NI Example Finder under Help>>Find Examples. Once the NI Example Finder browse to Hardware Input and Output>>DAQmx>>Synchronization>>Multi-Device. The first example called Multi-Device Sync-AI and AO-Shared Timebase & Trig-DSA, illustrates continuous analog input and output operations. It configures a total of four tasks on two PXI Dynamic Signal Acquistion (DSA) devices. Each device runs a task for analog input and another for analog output.
We have other examples available through the NI-Developer Zone: Example Code that allows you to search for other examples.
Hope this can help you get started.
Thanks for your response. I want to use the PXI-4461 for both input & output and the PXI-4472 channels for input.
Can the input channels & output channel specify as:
"Dev1/ai0:7,Dev2:ai0:1" input channel for PXI-4472 (Dev1) and PXI-4461 (Dev2)
"Dev2/ao0" output channel for PXI-4461(Dev2)
How do I synch them for acquisition. Do I need to create one input taskhandle and one output task handle or two input task handle and one output task handle?
Yes, you can have an input task that handles two different boards by specifying the physical channels as: “PXI1Slot2/ai0:1,PXI1Slot3/ai0:5” where slot 2 has the PXI-4472 and slot 3 has the PXI-4461 or like you specified with Dev1/ai0 if that is the name of your board in MAX.
I have included an example that shows you how to do synchronization by using property nodes.
Hope this helps,