The ABB BC810K01 3BSE031154R1 is a CEX-bus Interconnection Unit. It is a communication module used in ABB's System 800xA automation system. The CEX-bus (Communication Expansion Bus) is an internal communication bus in the System 800xA architecture that allows for connectivity between various modules and devices within the system.

The BC810K01 module acts as an interface between the CEX-bus and other components in the system, such as controllers, operator stations, and I/O modules. It provides a means for exchanging data and control signals between these devices, facilitating the overall system operation.

The BC810K01 module supports different communication protocols, allowing for seamless integration with different types of devices. It typically resides in a redundant configuration for increased reliability.

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ABB BC810K01 3BSE031154R1 Cex-bus Interconnection Unit Datasheet