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MAIN FACTORY MANAGEMENT
COMPUTER SYSTEM
If interconnected processes are con-
trolled from different control systems,
a bus system is used for communication
and the exchange of data. The introduc-
tion of bus systems means that slow, in-
flexible and fault-prone I/O connections
now belong to the past.
A simple bus connection between the
programming interfaces of the CPUs may
be sufficient but, depending on speed re-
quirements and the amount of data to be
transferred, more complex connections, up
to and including quasi redundant factory
networks with network processors, may be
necessary.
The bus system creates a connection be-
tween the PLC, SCADA systems and ad-
ministration computers and therefore data
can be exchanged at all levels.
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