I/O Sampling Frequency and Clock?

[dmontalvao]

Hi! I wrote a program in Labview 7.1 and I need it to automatically access the following information from the DAQCard:

Maximum Sampling Rate (Input kS/s)

Output Resolution (kS/s)

Clock Frequency (MHz)

I can access the first using the AI-Config and Clock-Config, but I am not able to access the other 2. Can anyone help me? The problem is that I want to be able to use my program with my DAQCard (6062E - I500kS/s, O850kS/s, 20Mhz) but also with other cards available in my place of work, and that information is necessary. Of course I can ask the user to introduce this data by hand, but that would not be very "elegant".

Thank you all!

Cheers,

Diogo Montalvão (Lisbon, Portugal)

[Stefo]

Hi, I want to ask how fast and how accurate (in the time) can I measure, if I use digital trigger for AI. I'm using PCI-MIO-16E-1 data acquisition card. For example, I have connected signal generator, which provide TTL signal, to PFI0/TRIG1. And same signal is wiring to AI2. I can measure this signal, but its period and frequency is very unstable, even if I use very high sampling frequency. can you suggest me something? thanks.

martin.stefik@gmail.com

And another question. How can I add allowance to the forum?

P.S. Sorry for my English

[johan G.]

Hi Diégo,
 Sorry, I do not think it is possible to obtain these informations by programming.

Johan G.
NIF

[dmontalvao]

Hi Johan,

With AI-Config and Clock-Config I think I can access my DAQCard 6062E Clock Frequency (500 kS/s) and timebase signal (20MHz)... At least I seem to be able to extract these values with the VI I attach here (sorry to have confused the names on the previous posts). I wonder if these values are just a coincidence ... yes, I really must confess I am quite an amateur with LabVIEW! Maybe I should try it with a different board to see if the values change and are according to other boards' specifications.

However, I am still not able to access the Output Resolution (which in my case is 850kS/s). Well, I think my best chance is to let the user define it during run-up.

Anyway, thank you for answering.

Best regards,

Diogo Montalvão

[dmontalvao]

Hi Stefo,

I really have no idea . I am still a learner. Maybe you should post a new thread about that subject... I am sure you'll have better chances of getting support.

Best regards,

Diogo Montalvão