ANB10D-420/CU2N/NDEL | Yokogawa Duplicated Node Interface Unit

Product Overview

The Yokogawa ANB10D-420/CU2N/NDEL is a high-availability Duplicated Node Interface Unit (NIU) designed for the CENTUM VP Distributed Control System (DCS). This unit functions as a remote or local I/O subrack, housing up to 8 FIO (Field Input/Output) modules. The "D" designation indicates a Duplexed (Redundant) architecture, providing dual paths for power and communication. This specific configuration includes specialized option codes (CU2N/NDEL) typically associated with refined communication terminal settings and specific hardware labeling for international project standards.

Condition: 100% Brand New and Original Factory Sealed.

Part Number Breakdown: ANB10D-420/CU2N/NDEL

Yokogawa utilizes a comprehensive suffix and option code system to define the NIU's electrical and physical properties:

• ANB10D: Duplicated Node Interface Unit (for FIO).

• -4: Dual-redundant 100-120 V AC Power Supply.

• 2: 19-inch Rack-mount type with insulation bushing.

• 0: Basic hardware type.

• /CU2N: Communication interface option (often specifying connector types or noise filtering).

• /NDEL: Specialized labeling or destination-specific hardware designation.

Technical Specifications

The ANB10D-420 provides a stable and redundant electrical environment for critical I/O modules.

• Number of I/O Slots: 8 slots (supports Analog, Digital, and Communication FIO modules)

• Interface Bus: ESB Bus (Extended Serial Backplane)

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

• Mounting: Standard 19-inch rack-mount (with insulation bushing)

• Withstand Voltage: 1500 V AC between power terminals and ground

• Current Consumption: Max 100 VA (at 100-120 V AC)

• Redundancy: Supports dual PW481 power units and dual EC401 bus modules.

Engineering Advantages

• Mission-Critical Availability: The ANB10D-420/CU2N/NDEL is engineered to eliminate single points of failure. By utilizing dual-redundant power supplies and ESB bus interfaces, the unit ensures that all 8 I/O modules remain online even if one power circuit or communication cable fails.

• Optimized Signal Integrity: The "2" in the suffix indicates the inclusion of insulation bushings for rack mounting. This prevents ground loops and electrical noise from the cabinet frame from interfering with sensitive analog and digital signals, a critical requirement for E-E-A-T compliant industrial installations.

• Scalable Distributed I/O: This NIU allows for the physical distribution of I/O modules across the plant. By connecting multiple ANB10D units via YCB301 ESB bus cables, a single controller can manage widely dispersed field points while maintaining high-speed data synchronization.

• Online Hardware Maintenance: All redundant components are hot-swappable. Maintenance teams can replace a faulty power supply or bus interface module while the system is live and the process is running, significantly reducing Mean Time to Repair (MTTR).

• High-Density Rack Efficiency: With 8 dedicated slots in a 19-inch form factor, the ANB10D maximizes cabinet space. This density allows for more control points per square foot, reducing the overall footprint of the DCS control room.

FAQs

• What is the difference between ANB10D and ANB11D?

  The ANB10D is for the standard ESB Bus (local or near-distance), while the ANB11D is typically used for the Optical ESB Bus, allowing for much longer distances between the controller and the I/O node.

• How do I connect the ANB10D-420 to the Field Control Unit?

  The NIU connects to the FCU (e.g., AFV30D or AFV10D) using ESB Bus Cables. For a redundant system, these cables must be used in pairs to maintain the duplicated communication path.

• Does this unit include the I/O modules?

  No. The ANB10D-420/CU2N/NDEL is the base chassis and power assembly. You must order specific I/O modules (e.g., AAI141, ADV151) separately based on your project's I/O list.

• Can I use this unit in a 220V AC environment?

  No. The suffix "-4" indicates a 100-120V AC rating. For 220-240V AC power environments, the ANB10D-2xx series is required.