Explain how the DAQ digital inputs work

[mkapler1]

Hi!

I was wondering how to set what is high and what is low for my digital inputs for my DAQ? I am using DAQ USB-6211.

Thank you for your help!

[GerdW · Accepted solution]

Hi mkapler,

did you read the specs of your USB6211?

The document is quite clear on your question…

(It's a LV-TTL device, able to handle standard TTL on inputs.)

[senthilprabhu]

i see the datasheet if USB-6211 DAQ. my program is give the digital input to DAQ.

can i connect external +5Volt to the Digital Input pin(PFI 0/P0.1)?

Based on the this input i perform the operation.

[GerdW]

Hi senthil,

digital inputs on standard DAQ devices can handle 5V at inputs.

But: What's the sense in connecting a static 5V to a PFI input?

[senthilprabhu]

Hi GerdW,

I connect the proximity sensor signal given to PFI Input. It like as a, when it  sense Input will be high(5V), when not sense input will be low(0V).

[GerdW]

Hi Senthil,

you can connect your sensor to the DI pin…