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The process I/O dedicated to an Advant Controller 450 is available as one or several I/O
subracks (for central location close to the controller) or I/O units (for distributed location).
Also available are different distributed, autonomous units including I/O, for example PLC-type
controllers.
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MasterBus 300/300E
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Advant Fieldbus 100
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Redundant bus extension to S800 I/O
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