ANB10D-417/CU2N | Yokogawa | CENTUM VP Dual-Redundant ESB Bus Node Unit

Product Overview

The Yokogawa ANB10D-417/CU2N acts as a high-availability remote I/O chassis for the CENTUM VP distributed control system (DCS). This unit establishes a high-speed, deterministic link between the Field Control Unit (FCU) and I/O modules via the Extended Serial Backplane (ESB) bus. Designed specifically for mission-critical industrial applications, it utilizes a dual-redundant (active-active) power architecture to eliminate single points of failure. We supply this unit as 100% Brand New and Original, ensuring peak performance in demanding refinery, chemical, and power generation environments.

Part Number Breakdown

Yokogawa utilizes a specific suffix logic to define the electrical and interface capabilities of the ANB10D series:

Technical Specifications

The ANB10D-417/CU2N provides the physical infrastructure for dense I/O configurations:

• Communication Redundancy: Dual-redundant ESB bus support

• Power Supply: Dual active-active 100–120 V AC (50/60 Hz)

• Current Consumption: Approx. 200 VA / 120 W at maximum load

• I/O Module Capacity: 8 slots for Centum VP modules

• System Scalability: Supports up to 13 units per AFV30/AFV40 controller

• Physical Format: 19-inch rack mount (8U height)

• Hardware Weight: 10 kg

• Included Hardware: M5 × 4 mounting screws and insulation bushings

Engineering Advantages

• Optimized for Intermediate Nodes: The CU2N interface lacks internal termination, making this unit the ideal choice for start or intermediate positions in an ESB bus chain. It allows the communication signal to pass through seamlessly to subsequent nodes.

• High-Density I/O Scalability: This unit hosts up to 8 I/O modules within a compact 8U footprint. It allows engineers to increase I/O density within existing control cabinets without the cost and complexity of adding additional Field Control Units (FCUs).

• Active-Active Power Protection: Unlike passive backup systems, the dual-redundant power supplies share the load actively. If one power path fails, the remaining module instantly assumes the full load, preventing system reset and maintaining process continuity.

• Standardized Rack Integration: The 19-inch rack-mount design simplifies installation in standard industrial enclosures. The included insulation bushings prevent ground loops and protect sensitive electronics from electromagnetic interference (EMI) often found in heavy industrial settings.

FAQs

• Can I use the ANB10D-417/CU2N as the final node in a bus chain? Generally, no. The CU2N connector does not include internal termination. You typically require the CU2T version (with terminator) or a separate external terminator for the final node in the chain to prevent signal reflection.

• Does this unit support "Hot Swapping" of power supplies? Yes. The active-active redundancy allows you to replace a faulty power module while the system remains operational, ensuring zero downtime for your process loop.

• What is the maximum number of nodes I can connect to a single controller? You can connect up to 13 ANB10D units to a single AFV30 or AFV40 controller, allowing for massive I/O expansion across your facility.

• Is this unit suitable for hazardous (Class 1 Div 2) areas? This specific model (ANB10D-417) is a basic type (non-Ex). For hazardous area requirements, you must verify the specific protection rating of your enclosure or consult the Yokogawa "Ex-rated" hardware catalog.