Product Description

The ANB10D-425/CU2N/NDEL is a high-reliability expansion interface designed for the Yokogawa CENTUM VP control system. This ESB Bus Node Unit provides the physical housing and communication backbone for various I/O modules, connecting them to the Field Control Unit (FCU) via the Extended Serial Backplane (ESB) bus.

This configuration features a dual-redundant power supply system rated for 220–240 V AC, ensuring continuous I/O operation even if one power module fails.

Configured as a Basic Type unit without explosion protection, it is intended for general-purpose industrial environments. The CU2N option specifies a connector unit for the ESB bus without terminators, making it suitable for installation at the beginning or middle of a bus chain. The NDEL license enables node expansion within the system architecture.

• Primary Role: ESB bus interface and remote I/O expansion

• Power Supply: Dual-redundant AC input (220–240 V AC)

• Connector Type: CU2N (no terminator, for mid-chain use)

• System Expansion: NDEL license for scalable architecture

• Installation: 19-inch rack mount (EIA/JIS standard)

Technical Specifications

System Architecture Use Case

The ANB10D-425/CU2N/NDEL is deployed in control cabinets where additional I/O capacity is required beyond the local FCU rack. By leveraging the ESB bus, this node enables high-speed, deterministic communication between field devices and the central controller.

It is particularly suitable for industrial environments with established 220–240 V AC power infrastructure, supporting scalable and distributed control system expansion.

Technical FAQ

Q: When should the CU2N option be used instead of the CU2T?
A: The CU2N connector is used when the node is positioned at the start or middle of the ESB bus chain. The CU2T (with terminator) is only required for the final node in the chain to prevent signal reflection and ensure proper signal integrity.