i need help in frequency readings‏

Hi,
goodafternoon,
By using the attached file i wanted to read the frequency of the signal " the signal is pulses"
i have done it and record the reading in excel files 
if u check the excel files u will find high values but on the oscilloscope the value for file frequency100 and frequncy101 should be between 430hz to 460hz but in the file it is very high .
can i know what is the problem please ?

i am using cDAQ-9188 with digital input 9401
i connected the signal to pin#14 and the com to the ground of the driver 

Note i have emailed 2 emails before this email and there is no reply since last week, any one can help me in that ?
thanks