Contec Conprosys CPS-MC341-ADSC1-111 Reference Manual page 36

CPS-MC341-ADSC1-111, CPS-MC341-ADSC2-111, CPS-MG341-ADSC1-111 Reference Manual (Hardware)
Digital Filter Setting Time
Set the digital filter time to 0 – 20 (00h - 14h).
Setting the digital filter time to 0 disables the function of filtering (0 is set as default and upon turning
on the power).
Setting Data (n)
0(00h)
Default setting
1(01h)
2(02h)
3(03h)
4(04h)
5(05h)
6(06h)
7(07h)
8(08h)
9(09h)
10(0Ah)
The following lists the relation between digital filter time and setting data.
Digital Filter Time [sec] = 2
The digital filter applies to all input channels; it cannot apply to only specific input pins.

To pass input signal without fail, the pulse width should be twice or larger than setting filter

time.
A digital filter doesnt work effectively if the filter time i s set (setting data: 1-10) shorter than

the opto-coupler response time.
—
Product Nomenclature and Function
Digital Filter Time
The filter function is
unused
0.25μsec
0.5μsec
1μsec
2μsec
4μsec
8μsec
16μsec
32μsec
64μsec
128μsec
/(8x10 )
n 6
CAUTION
— 36 —
—
The signal level remains the same over
the digital filter setting time, the digital filter
recognizes that signals as normal and
changes the filter output signal level.
Setting Data (n)
11(0Bh)
12(0Ch)
13(0Dh)
14(0Eh)
15(0Fh)
16(10h)
17(11h)
18(12h)
19(13h)
20(14h)
-
n: Setting Data (0 - 20)
Digital Filter Time
256μsec
512μsec
1.024msec
2.048msec
4.096msec
8.192msec
16.384msec
32.768msec
65.536msec
131.072msec
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