Counter Output >> General Properties >> More >> Advanced >> Prescaler

NI-DAQmx C Properties

Counter Output >> General Properties >> More >> Advanced >> Prescaler

Data Type: uInt32
Description: Specifies the divisor to apply to the signal you connect to the counter source terminal. Pulse generations defined by frequency or time take this setting into account, but pulse generations defined by ticks do not. You should use a prescaler only when you connect an external signal to the counter source terminal and when that signal has a higher frequency than the fastest onboard timebase.

You can get/set/reset this property using:
  DAQmxGetCOPrescaler
  DAQmxSetCOPrescaler
  DAQmxResetCOPrescaler