Description

Yokogawa ANB10D-415/CU2N/NDEL ESB Bus Node Unit

The Yokogawa ANB10D-415/CU2N/NDEL, also cataloged as the ANB10D Node Unit for Dual-Redundant ESB Bus, operates as a dedicated hardware component for field I/O aggregation and deterministic data transfer within Yokogawa CENTUM DCS FIO networks. It executes backplane signal routing between connected I/O modules and dual-redundant Enhanced System Bus interfaces without protocol translation overhead.

Suffix Breakdown & Model Matrix

Code Element	Definition
ANB10D	Node Unit for Dual-Redundant ESB Bus
-4	Dual-redundant power supply configuration
-1	100 – 120 V AC power input
-5	Basic type, no explosion protection
/CU2N	Connector Unit for ESB Bus (no internal termination resistors)
/NDEL	Software license enabling node expansion under high-capacity FCUs

Hardware Specifications

Parameter	Specification
Model Brand	Yokogawa
Origin	Japan
Weight	10 kg
Dimensions	483 mm x 221 mm x 214 mm
Operating Temp	0 to 60 degC (derating may apply with certain comms modules)
Power Consumption	200 VA / 110 W
Power Input Range	85 to 132 V AC, 50/60 Hz ±3 Hz
I/O Capacity	8 FIO module slots
Communication Bus	Dual-redundant ESB Bus

Channel-to-Channel Isolation and Cold Junction Compensation

The ANB10D implements channel-to-channel isolation to suppress ground loop-induced noise across analog input modules. For thermocouple-configured FIO cards mounted in this node unit, cold junction compensation is executed locally at the module level, referenced to the node unit’s internal temperature sensor array. This eliminates the need for external compensation wiring while maintaining measurement accuracy across the supported input types.

Frequently Asked Questions

Q: Can the ANB10D-415/CU2N/NDEL operate with only one power supply module installed?

A: Yes. The dual-redundant power supply design permits operation with a single module, but redundancy is lost until both are installed and powered.

Q: Does the /CU2N connector unit require external termination resistors?

A: Yes. Since /CU2N lacks internal termination resistors, proper bus termination must be implemented externally at the final node position in the ESB loop.

Q: Is hot-swapping of I/O modules supported while the node unit is powered?

A: Hot-swapping is permitted only for certain FIO modules explicitly rated for live insertion. Always verify the target I/O module’s manual before removal or installation under power.

Field Installation Guidelines

Secure the node unit into a standard 19-inch rack using four M5 screws at the designated mounting points. Ensure functional grounding resistance remains below 100 ohms. Route ESB bus cables separately from high-voltage power lines to minimize electromagnetic interference. Use shielded twisted-pair cabling for all ESB connections, terminating shields at the rack ground point. Verify proper bus termination placement according to the ESB network topology before applying power.

Specifications

• Brand: Yokogawa

Advantages

• High reliability in industrial environments
• Supports continuous operation
• Compatible with major PLC/DCS systems