sbrio counting fast pulses

[falkpl]

I am trying to count 30 ns pulses (TTL square pulses) from a sensor using a sbrio DI loop (4 total sensors).

What is the purpose of the derived clock, can I a DIO loop at 80MHZ or 160MHZ and get better resloution of my counting. 

What is the best method for counting here.

The application will be developed in LV2009.

[Anna_K.]

Hello Paul, you are exactly right. You can right click the 40MHz onboard clock in the FPGA project and select New derived clock and create a higher clock rate. You can later set your Timed loop to use this new clock source and will sample your DI channel faster, acheiving better resolution. Be sure to note any limitations of your DI module, which can easily be found on the its product page.