ABB’s Industrial
IT Automation system offers a complete strategy to maximize availabilty. The diagram here shows a part of the system design and redundant sectors.

OperateIT Features to provide the operator interface in case of failure
- Connectivity Server Redundancy
Duplicate servers provide redundancy with individual Alarm/Event and History Log
- Aspect Server Redundancy
A 2 out of 3 voting redundant strategy providing maximum availability for Object Aspects
- Plant Network redundancy
Dual media
ControlIT Features to maintain Control and Supervisory functions in case of controller failure
- Controller CPU
Dual interfaces – duel controller ports on CPU
- UPS redundancy
FieldIT Features to maintain process data in case of failure
- Redundant media to Remote I/O
- SIL2 pressure transmitters
- FieldIT redundancy take advantage of the individual protocol features
These redundancy strategies are an integral part of ABB’s Industrial
IT offering and have been proven over time. Click the links on the right to see how ABB takes advantage of fieldbus technology to further enhance system availability.