PXI 7833R initial state

[lightmiddle]

Hi:

  I am using a PXI 7833R digital I/O line to generate digital signals. If I did not send a control to the line , what is the output voltage ? what is the output difference between that I send a 0 to it and that I do not send control to it?

  Thanks.

[DimensionFinder]

Hi:

By default the digital output lines of any 783x device will output a high value of 3.3V. This knowledgebase written for the 7831R also applies to the 7833R and addresses your question.

http://digital.ni.com/public.nsf/websearch/D58C269F7771770E86256F490082E6C8?OpenDocument

Regards,

Jaideep

[lightmiddle]

Hi

          I think you just misunderstood my question.

I was asking if I make the digital I/O float or I did not send a signal to control the line. What is the output in this situation?

       What you said is the default High output is 3.3V.

[lightmiddle]

anybody knows that?

[Ame_G]

Hi,
As the manual state on page 2-2, the DIO lines are at high impedance during power on. When nothing is written to the lines they are ouputting a value of 0.
Ame G.