Digital inputs and PFI trigger inputs on NI PCI 6259

[tigercotter]

Hi,

I want to be able to trigger the data acquisition using a digital trigger say on the rising edge but i am not sure should i use a digital input or the PFI trigger inputs on the DAQ. Also how do arrange them in labview.

Any help would be grateful.

Tiger

 

[tigercotter]

Digital input

Hi this is the VI working on. the digital goes from 0 to 5 V so to start the data acquisition the input digital signal should be greater than 3V. When i run the program, I see the indicator for digital input one flicking on/off.


any help please for a depressed electronic/electrical engineer.

Thanks