ABB S800 I/O Manual page 52

CI840 Configuration Rules
Module User
Type Parameters
AI801 13
AI810 13
AI820 9
AI825 9
AI830/ 12
AI830A
AI835 15
AI835A 16
AI843 16
AI845/ 13
AI815
AI890 13
AI893 15
AI895 13
AO801 17
AO810/ 17
AO810V2
AO820 11
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– InSize is less than or equal to 239 in normal mode, 199 in Extended HART
mode.
– OutSize is less than or equal to 112 in normal mode, 90 in Extended
HART mode.
If any of these three values is too high then the configuration can not be used.
Table 13. Calculation of Number of Modules on CI840
Input
Bytes
17
17
9
9
17
17
17
20
17
17
17
17
1
1
1
Number
Output
of
Bytes
Modules
0
0
0
0
0
0
2
2
0
0
0
0
16
16
8
Section 3 Configuration
Sum Sum
User Para- Input
meters Bytes
3BSE020926-600
Sum
Output
Bytes