Creates a channel to measure the time between state transitions of a digital signal.
Refer to the National Instruments NI-DAQmx C Reference Help file for detailed descriptions of these options, under NI-DAQmx C Functions > Channel Configuration/Creation > Create Counter Input Channels > DAQmxCreateCISemiPeriodChan.
Maximum Value: Indicates the maximum value you expect to measure.
Minimum Value: Indicates the minimum value you expect to measure.
Units: Indicates units to use to return the measurement.