ABB S800 Product Manual page 132

PROFIBUS CI840
Calculation of Number of S800 I/O Modules per Station
Due to the PROFIBUS-DP specification it is not possible to connect 24 analog
I/O modules to one FCI. The reason is that the S800 I/O system includes more data
and user parameters than PROFIBUS-DP can handle.
number of modules that can be connected to one CI840.
132
Table 26. Maximum Number of Modules on CI840
Module Type
AI801, AI810, AI815,
AI830, AI830A, AI835,
AI835A, AI890, AI893,
AI895
AI820, AI825
AI843
AI845
AO801, AO810, AO815,
AO810V2, AO845,
AO845A, AO890, AO895
AO820
DI801, DI802, DI803,
DI810, DI811, DI820,
(1)
DI821, DI825 , DI890
DI818
DI828
(1) (1)
DI830 , DI831
DI840
(1)
DI885
DO801, DO810, DO814
DO802, DO815, DO820,
DO821
Section 3 Technical Data and Performance
Table 26
Number of Modules
14 (11)
24 (22)
11 (9)
14 (11)
7 (5)
14 (11)
24 (24)
24 (24)
24 (24)
15 (15)
16 (16)
22 (21)
22 (21)
24 (24)
shows maximum
3BSE015969-600 A