PARTIAL REDUNDANCY FOR I/O MODULES OR CHANNELS IN DISTRIBUTED CONTROL SYSTEMS

PARTIAL REDUNDANCY FOR I/O MODULES OR CHANNELS IN DISTRIBUTED CONTROL SYSTEMS

An apparatus includes at least one first input/output (I/O) module (204) having multiple first I/O channels (224, 228). Each first I/O channel (224, 228) is configured to provide a communication path. The apparatus also includes a second I/O module (212) having multiple second I/O channels (244, 248...

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Bibliographische Detailangaben
Hauptverfasser: JAGNNATHAN, Sai Krishnan, KUMAR KN, Dinesh, GERHART, Paul
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Zusammenfassung:An apparatus includes at least one first input/output (I/O) module (204) having multiple first I/O channels (224, 228). Each first I/O channel (224, 228) is configured to provide a communication path. The apparatus also includes a second I/O module (212) having multiple second I/O channels (244, 248). Each second I/O channel (244) is configured to provide a redundant communication path for one of the first I/O channels (224). The apparatus is configured to provide the redundant communication paths for only a subset of the first I/O channels (224, 228). The first I/O channels (224, 228) may include critical I/O channels (224) and non-critical I/O channels (228), and the apparatus may be configured to provide the redundant communication paths for only the critical I/O channels (224).