Ci840 Configuration Rules - ABB S800 I/O Manual

Section 3 Configuration
Table 11. Calculation of Number of Modules on CI830 (Continued)
User
Module
Paramete
Type
rs
DP840 7
ABB 3*
Standard (4)
Drive
Total sum -
Rounded -
sum
Data with * are valid for CI830 firmware 1.0 to 1.2.
Data inside parenthesis ( ) are valid for CI830 firmware version 1.3 or higher.

CI840 Configuration Rules

The maximum number of S800 I/O stations per bus is:
Redundant CI840: 62 stations
Single CI840: 99 stations
Supported communication speeds: 93.75 kbit/s to 12 Mbit/s
The maximum number of S800 I/O stations per bus segment is:
Communication speed 12Mbit/s: 20 stations
Communication speed <1.5Mbit/s or less: 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
The 12 modules per cluster can either be 12 single I/O modules or 6 pairs of
redundant I/O modules. Redundant I/O modules can only be mounted on the base
cluster. It is not allowed to mix single and redundant I/O modules within a cluster.
3BSE020926-600
Input Output
Bytes Bytes
36 4
14* 12*
(8) (6)
- -
- -
Sum
Number
User
of
Para-
Modules
meters
ParamSiz
e
Round
ParamSiz
e
CI840 Configuration Rules
Sum Sum
Input Output
Bytes Bytes
InSize OutSize
Round Round
InSize OutSize
49