Ci830 Configuration Rules - ABB S800 I/O Manual

Section 3 Configuration
Table 9. Calculation of Number of Modules on CI801 (Continued)
Module User
Type Parameters
DP840 10
Standard 4
Drives
Total sum -

CI830 Configuration Rules

The maximum number of S800 I/O stations per bus is: 79 stations.
Supported communication speed: 9.6 kbits/s to 12 Mbit/s.
The maximum number of S800 I/O stations per bus segment is: 32 stations.
The maximum number of I/O modules in a station is: 24 modules
The maximum number of I/O modules per cluster is: 12 modules
It is not allowed to physically install more than 12 MTUs and/or S800L modules in
a cluster.
Due to the PROFIBUS-DP specification it is not possible to always connect 24 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 I/O modules that can be connected to one CI830.
3BSE020926-600
Input Output
Bytes Bytes
34 0
13 12
- -
Table 10. Maximum Number of Modules on CI830
Module Type
AI801, AI810, AI830, AI830A,
AI835, AI835A, AI890, AI893
AI820, AI825
Number Sum
of User Para-
Modules meters
ParamSize InSize
Table 10
Number of Modules
CI830 Configuration Rules
Sum Sum
Input Output
Bytes Bytes
OutSize
shows maximum
12
20
45