Product Description

The ANB10D-410/CU2N is a high-availability expansion node designed for the Yokogawa CENTUM VP distributed control system. It functions as a remote chassis for I/O modules, enabling reliable communication between field instrumentation and the Field Control Unit (FCU) via the Extended Serial Backplane (ESB) bus.

Engineered for mission-critical reliability, this unit features a dual-redundant power supply (100–120 V AC), ensuring continuous operation even in the event of a single power module or circuit failure.

The CU2N connector unit provides the standard interface for intermediate nodes within an ESB bus chain. With support for 8 I/O module slots, the system allows scalable and deterministic data acquisition in industrial environments.

• Primary Function: ESB bus I/O expansion node

• Power Supply: Dual-redundant (100–120 V AC)

• Connector Type: CU2N (non-terminated)

• Node Position: Start or middle of ESB chain

• I/O Capacity: Up to 8 modules

• Application Focus: Distributed control and data acquisition

Technical Specifications

Operational Applications

The ANB10D-410/CU2N is widely used in refineries, pharmaceutical plants, and power generation facilities operating on 110 V AC infrastructure.

It is typically installed in control cabinets to expand I/O capacity without adding additional controllers. As a non-terminated CU2N node, it is best suited for start or middle positions in an ESB bus chain, enabling flexible system architecture and efficient signal distribution.

Technical FAQ

Q: Can this unit be used as the last node in an ESB chain?
A: No. The CU2N connector does not include termination, so it should not be used as the final node. A CU2T connector or external terminator is required at the end of the ESB bus to prevent signal reflection.

Q: Does this unit support G3 environmental protection?
A: No. The “0” suffix indicates a basic type without ISA G3 protection. For corrosive environments, a “6” series model with G3 compliance should be selected.