XC series analog expansions User Manual Page 40 of 53
MANU003R2V1
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Every input of the expansion has option of filter, set via a special FLASH data register FD in
the PLC. See the following chart:
Module
Channel’s ID
0CH - 3CH
4CH - 5CH
1#
module
FD8250
FD8251low byte
2#
module
FD8258
FD8259 low byte
3#
module
FD8266
FD8267 low byte
4#
module
FD8274
FD8275 low byte
5#
module
FD8282
FD8283 low byte
6#
module
FD8290
FD8291 low byte
7#
module
FD8298
FD8299 low byte
Each channel’s filter mode is assigned via corresponding register’s 4 bits! Each bit’s definition is
shown in the following table:
Take module 1 as the example:
Register FD8250:
Channel 2
Channel 1
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
00: 1/2 filter
01: no filter
10: 1/3 filter
11: 1/4 filter
-
-
00: 1/2 filter
01: no filter
10: 1/3 filter
11: 1/4 filter
-
-
-
-
-
-
Channel 4
Channel 3
Bit15
Bit14
Bit13
Bit12
Bit11
Bit10
Bit9
Bit8
00: 1/2 filter
01: no filter
10: 1/3 filter
11: 1/4 filter
-
-
00: 1/2 filter
01: no filter
10: 1/3 filter
11: 1/4 filter
-
-
-
-
-
-
6-3 Programming
Take 1# module as example:
FD8250 H O O O O
0CH
1CH
2CH
3CH
FD8251 H O O O O
4CH
5CH
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