Description

Yokogawa ANR10D-420/ATDOC/NDEL ER Bus Node Unit

The Yokogawa ANR10D-420/ATDOC/NDEL, also cataloged as the ANR10D ER Bus Node Unit, operates as a dedicated hardware component for remote I/O communication and power distribution within CENTUM VP and CENTUM CS 3000 ER Bus networks. The unit accommodates up to 8 FIO I/O modules and transfers field I/O data to the associated Field Control Unit (FCU) through a dual-redundant ER Bus architecture.

Suffix Breakdown & Model Matrix

Code	Description
ANR10D	ER Bus Node Unit, 19-inch rack-mount type
-4	Dual-redundant power supply configuration
2	220 to 240 V AC power input
0	Standard type without explosion protection
/ATDOC	Explosion Protection Manual included
/NDEL	Node Expansion License included

Hardware Specifications

Parameter	Specification
Model	ANR10D-420/ATDOC/NDEL
Brand	Yokogawa
Origin	Japan
Product Type	ER Bus Node Unit
Compatible Systems	CENTUM VP, CENTUM CS 3000
Communication Interface	Dual-redundant ER Bus via coaxial cable
Module Capacity	Up to 8 FIO I/O modules
Node Capacity	Up to 14 ER Bus Node Units per FCU (controller dependent)
Input Power	220 to 240 V AC, single-phase, 50/60 Hz
Power Supply Configuration	Dual-redundant
Power Consumption	230 VA / 120 W
Power Terminals	M4 screw terminals
Operating Temp	0 degC to 50 degC
Humidity	10 % to 90 % RH, non-condensing
Mounting Method	19-inch rack mounting
Dimensions	438 mm x 132.5 mm x 425 mm
Weight	Approx. 4.5 kg
I/O Support	Analog and digital FIO modules
Hot Swap Capability	Supported for power supply and installed I/O modules

DCS Signal Isolation and Field I/O Integration

Within the CENTUM FIO architecture, the ANR10D node unit functions as the physical carrier and communication interface for distributed I/O modules. Signal acquisition and transmission are performed by the installed FIO cards, while the node unit supplies backplane power and ER Bus communication paths.

The platform supports integration of process instrumentation using standard industrial signal types, including 4-20 mA loops, HART-enabled field devices, and digital process signals when corresponding FIO modules are installed. Communication redundancy is maintained through dual ER Bus channels, while module-level isolation characteristics depend on the specific FIO module configuration installed in the node chassis.

Frequently Asked Questions

Q: Can power supply modules be replaced while the node remains operational?
A: The unit supports online replacement of installed power supply modules when operating in the dual-redundant configuration and system maintenance procedures are followed.

Q: Does the ANR10D directly process analog or digital field signals?
A: No. Signal processing is performed by the installed FIO I/O modules. The ANR10D provides module housing, backplane power distribution, and ER Bus communication.

Q: Is the /NDEL option a hardware feature?
A: No. The /NDEL suffix identifies the Node Expansion License supplied with the unit for supported FCU configurations requiring node expansion functionality.

Field Installation Guidelines

• Install the chassis in a 19-inch rack using the specified mounting hardware and insulation bushes.
• Verify that the incoming supply voltage matches the configured 220 to 240 V AC rating before energizing the unit.
• Route ER Bus coaxial cables separately from high-voltage power conductors to minimize electromagnetic interference.
• Maintain proper protective grounding of the rack structure and associated field wiring shields according to plant grounding standards.
• Ensure adequate front and rear clearance for module insertion, removal, and maintenance access.
• Confirm power redundancy wiring and ER Bus redundancy connections before commissioning.
• Perform node recognition and communication verification from the associated FCU after installation.

Specifications

• Brand: Yokogawa

Advantages

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