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PXI 652x DIO Readback?

I have a PXI 6528 DIO board with TTL output channels that NI claims to have readback capability.  I think I need readback capability to facilitate SE execution steps.  How can readback be accomplished in SE or DAQmx?  A very old LV 6.1 vi example is available here

http://www.ni.com/example/29102/en/

but SE cannot run an old LV 6.1 vi.  Can someone either answer my question or at least convert the LV 6.1 vi example to LV 2010+??

 

Thanks for any advice

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http://forums.ni.com/t5/Version-Conversion/Example-VI-for-PXI-652x-DIO-from-LV-6-1-to-LV-2010-11-12-...

You also need to explain where you got the idea that you need read back capability. An SE step will set the logic states. Do you doubt that the write will not work?
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