Counter task types

[h_yong]

Hi, I'd like to understand the subtleties between some of the counter task type options in VeriStand and how they line up with the types of measurements such as those described in chapter 7 in this DAQ manual: http://www.ni.com/pdf/manuals/371596a.pdf

Specifically, is it possible to implement Method 3 as described on page 7-12 which requires 2 counters? If not, I'd like to see if I can use Method 1b and Method 2. I remember hearing that VeriStand's counters tasks are actually all single counter Count Edges acquisitions. If that's the case, then how would I perform edge timing with the DAQ's 80 MHz timebase?

Thanks.

[A_Ryan]

Hi hyong,

Your best bet for this functionality is to create custom device.  Use the template tool that ships with NI VeriStand, and create a custom device that contains the DAQmx API in order to accomplish the Large Range Frequency Measurement.