The Yokogawa ANB10D-420/CU2N is a robust ESB Bus Node Unit, part of Yokogawa’s CENTUM VP integrated production control system architecture. Designed to serve as a gateway between the control unit and I/O modules, this node unit forms a critical component in distributed control environments, especially in industries requiring high reliability and deterministic communication such as oil & gas, chemical, power generation, and water treatment.

It supports ESB (Enhanced Serial Bus) communication and enables high-speed, redundant data transfer across the control network. The model includes embedded diagnostics and can handle multiple I/O types through associated terminal modules. With support for redundancy and fault tolerance, the ANB10D-420/CU2N ensures seamless plant operation, contributing to Yokogawa’s reputation for operational excellence.

Technical Specifications – Yokogawa ANB10D-420/CU2N

Product Applications

• Oil & Gas Processing Plants – for managing large I/O structures with real-time redundancy.

• Petrochemical and Refining Facilities – integration of process control systems.

• Power Generation Units – used in balance-of-plant (BOP) or turbine control interfaces.

• Water Treatment Facilities – effective in distributed control for filtration and pumping.

• Pharmaceutical Manufacturing – aligns with GxP compliance through robust control networks.

• Paper & Pulp Industry – used in managing complex process and machinery automation.

• Metals & Mining – supports highly reliable communication across rugged installations.

Key Product Advantages

• Redundant Communication Design

  Ensures no single point of failure in mission-critical operations.

• High-Speed Data Transfer

  Optimized for real-time data acquisition and feedback loops.

• Modular Expandability

  Supports various combinations of I/O modules depending on process needs.

• Diagnostic Monitoring

  Integrated health and status monitoring improves maintainability.

• Long Lifecycle

  Designed for industrial-grade longevity, reducing total cost of ownership.

• Seamless CENTUM VP Integration

  Native compatibility with Yokogawa’s flagship DCS platform ensures ease of configuration and management.

Frequently Asked Questions (FAQ)

1. What does the ANB10D-420/CU2N unit primarily do?

   It acts as a communication bridge between control processors and field I/O in Yokogawa DCS systems using the ESB bus protocol.

2. Can this unit support redundancy?

   Yes, it is designed for redundant architecture setups, ensuring uninterrupted system operation.

3. What type of I/O modules are compatible with it?

   It supports Yokogawa’s FIO modules, including AI, AO, DI, DO, and various specialty modules.

4. Is the ANB10D-420/CU2N hot-swappable?

   While the I/O modules connected to the unit can be hot-swapped, the node unit itself typically requires power-down procedures for replacement.

5. What is the maximum number of I/O modules supported?

   Up to 10 modules depending on power and configuration.

6. Can it be used with older CENTUM CS systems?

   It is primarily designed for CENTUM VP but may have limited backward compatibility in hybrid systems.

7. Does it support automatic fault detection?

   Yes, it includes integrated diagnostics that detect communication and hardware failures.

8. What is the typical power consumption?

   Approximately 15W, depending on the number of modules and system activity.

9. What certifications does it carry?

   CE, CSA, KC, and GOST-R are commonly available, ensuring international deployment capability.

10. Where is the ANB10D-420/CU2N typically installed?

    It is rack-mounted within control cabinets or marshalling panels in central control rooms or field substations.