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3 Analog I/O Modules
30-18
WindO/I-NV4 User’s Manual
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Filter
The analog input is filtered so it reaches approximately 99% of the analog input in the set time. Rapid fluctuations in
the analog input can be reduced by setting the filter, but increasing the filter slows down the tracking of fluctuations
in the analog input. The filter must be set for each channel.
Input filter example
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Sampling Time
Analog values are converted to digital values at the interval of the sampling time. Depending on the analog I/O
module, you may be able to change the sampling time setting.
Filter (ms) Description
0 The value is not filtered.
50 to 50,000
The analog input filter can be set in 50 ms increments.
The analog input is filtered so that approximately 99% of the analog input is reached in the
specified filter.
-20
0
Elapsed time (ms)
Filter: 100 ms
Analog input data after filtering (%)
10
20
30
40
50
60
70
80
90
100
0 20 40 60 80 100 120
Reaches approximately 99% of the analog
input in the set filter (100 ms).
Type Signal Type Sample Time
FC6A-J2C1
0 to 10 V 1 ms
-10 to +10 V 1 ms
0 to 20 mA 1 ms
4 to 20 mA 1 ms
FC6A-J4A1
0 to 10 V 1 ms/10 ms
-10 to +10 V 1 ms/10 ms
0 to 20 mA 1 ms/10 ms
4 to 20 mA 1 ms/10 ms
FC6A-J8A1
0 to 10 V 1 ms/10 ms
-10 to +10 V 1 ms/10 ms
0 to 20 mA 1 ms/10 ms
4 to 20 mA 1 ms/10 ms
Expansion 0 to 20 mA 1 ms/10 ms
Expansion 4 to 20 mA 1 ms/10 ms