ANB10D-425/CU2T | Yokogawa CENTUM VP ESB Bus Node Unit

Product Overview

The Yokogawa ANB10D-425/CU2T serves as a high-availability expansion node for the CENTUM VP Distributed Control System (DCS). This unit facilitates the connection of local and remote I/O modules via a dual-redundant Extended Serial Backplane (ESB) bus. By providing a stable interface for FIO modules, the ANB10D-425 ensures seamless data flow between field instruments and the control station. We supply this unit as 100% Brand New and Original, meeting the rigorous standards of modern process automation facilities.

Part Number Breakdown: ANB10D Series

Yokogawa defines the technical configuration of the node unit through the following suffix and option codes:

Technical Specifications

The ANB10D-425/CU2T integrates robust power and communication hardware to manage heavy I/O loads:

• Bus Interface: Dual-redundant ESB Bus

• Power Supply: Dual-redundant (supports hot-swappable replacement)

• Input Voltage: 220 V to 240 V AC, 50/60 Hz

• Connector Type: Includes /CU2T Connector Unit with built-in Terminator

• I/O Support: Accommodates Yokogawa FIO (Field Input/Output) modules

• Weight: 10 kg

• Mounting: Standard 19-inch rack-mountable (requires 5U height)

Engineering Advantages

The ANB10D-425/CU2T resolves critical infrastructure challenges in process automation:

• Uninterrupted Power Availability: The dual-redundant power supply configuration eliminates downtime caused by individual power module failures. The secondary module carries the full load instantly if the primary unit fails, allowing for online replacement without shutting down the I/O node.

• Simplified Bus Termination: The integrated /CU2T option provides a pre-installed connector unit with a built-in terminator. This eliminates the need for external terminating resistors and reduces the complexity of the ESB bus daisy-chain, ensuring high-speed signal integrity across long rack distances.

• Stable High-Voltage Operation: Specifically designed for 220-240V AC grids, the internal power circuitry filters industrial line noise and handles the voltage fluctuations typical of heavy industrial environments, protecting sensitive I/O signals from electrical interference.

• High-Density Scalability: The robust chassis supports the full weight and thermal load of high-density I/O configurations. Engineers utilize this unit to consolidate hundreds of digital and analog points into a single, rack-mounted interface, significantly reducing the required cabinet footprint.

FAQs

• Does the /CU2T option remove the need for external terminators?

  Yes. The /CU2T connector unit includes an internal terminator. When you place this node at the end of an ESB bus chain, it automatically provides the required electrical termination to prevent signal reflection.

• Can I mix AC and DC power supplies in the ANB10D-425?

  No. This model (Suffix 2) utilizes 220-240V AC power. Both redundant power modules must match the AC voltage specification to ensure the backplane power distribution remains stable.

• What is the primary difference between ANB10S and ANB10D?

  The ANB10D supports a dual-redundant ESB bus interface, which requires two ESB bus cables for communication. This configuration protects the system from a total I/O loss if a single bus cable sustains damage.

• Is the ANB10D-425/CU2T compatible with CENTUM CS 3000?

  Yes, this unit maintains backward compatibility with CENTUM CS 3000 systems while serving as a standard component for current CENTUM VP deployments. Always verify your software revision to ensure the LFS controller supports the node count.