Is the PXIe-PCIe8361 adequate for this system? And external clock questions...

[LucasH0011]

Hi all,

I have spent some time piecing together a system and I'd like a sanity check before pulling the trigger on this purchase.  The system will contain the following hardware:

1. Chassis: PXIe-1078

2. Controller: PXIe-PCIe8361

3. 3 x PXIe-6363 (16 analog inputs each card, 32 digital inputs each card, all internally clocked @ 10kHz)

4. 2 x PXI-6224 (32 digital inputs on one, 8 digital inputs on the other, externally clocked in "bursts" of 62.5khz)

5. Labview software

The three PXI-6363 cards will be responsible for  a mix of analog and digital measurements made @ 10 kHz, timed continuously by the onboard clock.

One PXI-6224 will be clocked externally @ 62.5 kHz and will be used to collect digital data on a 32-bit port.  These clock pulses will not be continuous, but will occur in bursts lasting for 2ms every 20ms.

The other PXI-6224 will be clocked externally @ 62.5kHz as well and will be used to collect digital data on an 8-bit port. These clock pulses will not be continuous, but will occur in bursts lasting for 2 ms at random intervals.

My questions are:

1. Am I planning anything that looks unreasonable for this hardware?

2.  Should I expect issues with data transfer rates with the PXIe-PCIe8361?  I will be operating well within the advertised 110MB/s throughput of the device.  I plan to stream this method... NI Fast TDMS data streaming

3.  I have only ever used NI cards for continuous measurements made by an onboard clock.  When I set up a task to collect data that is externally-timed, will the DAQ be expecting a "continuous" clock pulse, or will the system wait patiently for clock pulses to arrive at any rate (any rate within the spec of the card, of course)?

Thanks, any input is appreciated.

[NetoNI]

Hello LucasH0011

1-As long as you put the PXI-6224  and the PXIe-6363 cards in the corresponding slots, meaning the express(PXIe-6363) in the express and the hybrid(PXI-6224) in the hybrid.

2-I think you would  not have issues with the transfer rate.

3-Your timing specifications sound reasonable to me, I think you will be fine. 

Here is a document that has useful concepts for the use of cards:

https://www.ni.com/en/support/documentation/supplemental/21/m-series-synchronization-with-labview-an...

It is for the M-Series, but the concepts apply to the X-Series as well. 

Regards 

Ernesto