Description

Yokogawa ANB10D-421/CU2N/NDEL ESB Bus Node Unit

The Yokogawa ANB10D-421/CU2N/NDEL, also cataloged as the ANB10D Node Unit, operates as a dedicated hardware component for transmitting analog and contact I/O signals within CENTUM VP and CENTUM CS 3000 DCS platforms. It provides direct physical execution of signal interfacing between field devices and the Field Control Station (FCS).

Hardware Specifications

Parameter	Specification
ModelBrand	Yokogawa ANB10D-421/CU2N/NDEL
Origin	Japan
Weight	Approx. 10 kg (including 8 I/O modules)
Dimensions	482.6 mm × 221.5 mm × 205 mm
OperatingTemp	0 to 50 degC
PowerConsumption	100-120 VAC: 200 VA, 120 W; 220-240 VAC: 230 VA, 120 W; 24 VDC: 5.5 A
I/O Module Slots	Up to 8 single-slot Field I/O modules
Power Supply	Dual-redundant PW482 modules
Bus Interface	Dual-redundant SB401 ESB Bus Interface Slots
Interface Type	/CU2N copper ESB connector
Node License	/NDEL software license for controller connectivity

Process Control Connectivity Features

• 4-20 mA HART Loop Protocol: Supports analog signal transmission with HART superimposition for device diagnostics.
• Channel-to-Channel Isolation: Electrical isolation between individual I/O channels reduces cross-talk and interference.
• Cold Junction Compensation (CJC): Embedded for thermocouple measurement accuracy across variable ambient conditions.
• FOUNDATION Fieldbus/Profibus PA Integration: Compatible with standard industrial fieldbus protocols for modular network extension.

Frequently Asked Questions

Q: What is the maximum number of I/O modules supported?
A: The ANB10D-421/CU2N/NDEL supports up to 8 single-slot Field I/O modules.

Q: Are the ESB bus modules hot-swappable?
A: Yes, dual-redundant SB401 interface modules support hot-swap with automatic line-fault detection.

Q: What voltage ranges can the node unit operate under?
A: Acceptable AC input range is 198–264 V, 50/60 Hz, with a typical power draw of 230 VA / 120 W.

Field Installation Guidelines

• Mount the unit in a 19-inch rack using M5 screws with insulating bushes.
• Maintain minimum clearance around the chassis to ensure airflow and prevent overheating.
• Route ESB bus cables through shielded conduits; terminate shields at a single point to reduce EMI.
• Ensure dual-redundant power modules are properly connected and fused according to voltage specifications.
• Verify node licensing (/NDEL) is active before connecting to the FCS via EC401/EC402 coupler modules.
• Observe standard industrial grounding practices for chassis and interface connectors to prevent signal interference.

Specifications

• Brand: Yokogawa

Advantages

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