Rockwell Automation 1746-FIO4V SLC 500 Fast Analog I/O/ User Manual - Manual (Page 36)

Publication 1746-UM009B-EN-P - September 2007
36 Processor and Module Considerations
Input Channel Filtering
The module’s input filters are designed to attenuate less than 1% of
the input signal in the 0…1000 Hz range.
Percent of Signal Passed
The –3dB point is approximately 7000 Hz. The input filter causes a
signal delay of approximately 100 µs. The module’s A/D converter
sees a 95% step change of an input signal in that time.
Input Channel Frequency Response
100
99.9
99.8
99.7
99.6
99.5
99.4
99.3
99.2
99.1
99
0 100 300 500 1000
Pe
rc
ent
of
S
ig
nal
0
–4
–8
–12
–16
–20
–24
–28
–32
–36
–40
10
3
10
4
10
5
A
tt
enuat
ion i
n dB
Frequency in Hz