ABB S800 Product Manual page 23

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