ABB S800 - Page 23

Section 2 Product Description Introduction
3BSE015969-600 A 23
An example of a system using redundancy for all these components is shown in
Figure 3.
Figure 3. I/O Station Overview with Maximum Redundancy and Additional Single
I/O Modules
Redundant
ModuleBus
Redundant electrical
ModuleBus
Optical Port
Optical
Optical ModuleBus Modem
ModuleBus
I/O Cluster, single I/O
I/O Cluster, single I/O
Controller
Redundant
FCI
Redundant
I/O module
Redundant
Fieldbus