Acquiring a digital signal via PFI input using the SCB 68 and NI 6536 Devices

[CrisSTine01]

Hello

I’m using the NI 6536 with SCB 68, I’ve connected them via 653X adapter, I want to acquire a digital signal generated from a pulse generator, At first I’ve connected my Input to Port0 Line 0 which correspond to input 1 in the SCB 68 device, I’m able to see my pulses on NI MAX as well as in LabView , now I want to use the PFI input instead of Port0 Line 0 but It doesn’t work and I can’t localize the cause of this issue , have you any documentation to help me configure the PFI input in NI Max  and the steps that I should follow to do the job ??

I ve joined the screen shot of the signal acquired from Port 0 Line 0

Thanks in advance.

[GerdW]

Hi Christine,

PFI pins usually are used for triggers, counters, pulse generation.

So why do you want to measure using a PFI pin? Why don't you stick with your default DIO pin?

[CrisSTine01]

Hi

Actually I want to use my digital signal as a clock that's why I want to use a PFI pin

Best Regards

[GerdW]

Hi Crisstine,

when the signal at your PFI should be used as sample clock then you need to configure your DAQmx task to use the PFI as external sample clock…

[Lemmontree]

hello, have you got solution? I met the same problem with yours at NI-MAX. Can we have a discussion about the solution?

[GerdW]

Hi Lemmon,

---

@Lemmontree wrote:

hello, have you got solution? I met the same problem with yours at NI-MAX. Can we have a discussion about the solution?

---

Who is "you"?

Surely we can discuss your problems with your code - as soon as you attach your VI and tell us the specific problem you are stuck with!