Allen-Bradley MicroLogix 1200 User Manual page 42

3-12 Module Data, Status, and Channel Configuration
Publication 1762-UM002A-EN-P - July 2002
Channel Cut-Off Frequency
The filter cut-off frequency, -3 dB, is the point on the frequency
response curve where frequency components of the input signal are
passed with 3 dB of attenuation. The following table shows cut-off
frequencies for the supported filters.
Table 3.3 Filter Frequency versus Channel Cut-off Frequency
Filter Frequency
10 Hz
50 Hz
60 Hz
250 Hz
500 Hz
1 kHz
All input frequency components at or below the cut-off frequency are
passed by the digital filter with less than 3 dB of attenuation. All
frequency components above the cut-off frequency are increasingly
attenuated as shown in the graphs on page 3-13.
Cut-off Frequency
2.62 Hz
13.1 Hz
15.7 Hz
65.5 Hz
131 Hz
262 Hz