Yokogawa ANB10D-125/CU2T Dual-Redundant ESB Bus Node Unit

Hardware Specifications

Process Control Communication and Signal Interface

The Yokogawa ANB10D-125/CU2T manages ESB bus communication between installed FIO modules and CENTUM VP Field Control Units. Moreover, the unit transfers field signal data through the ESB network while maintaining dual communication paths.

The node unit supports Yokogawa process I/O architecture with modular installation of analog and digital input/output cards. Therefore, engineers can configure the hardware according to required field signal quantities and control system layouts.

In addition, the CU2T connector unit provides ESB bus connection terminals and termination functions for dual ESB bus installation. The hardware configuration supports structured cabinet integration with Yokogawa FCU systems.

For Yokogawa process instrumentation applications, the system architecture supports field signal processing features including 4-20 mA HART loop protocol interfaces, FOUNDATION Fieldbus / Profibus PA connectivity through compatible I/O modules, channel-to-channel isolation, and signal conditioning functions. These functions depend on the installed FIO module type.

Frequently Asked Questions

Q: What is the communication function of the Yokogawa ANB10D-125/CU2T?
A: The ANB10D-125/CU2T provides ESB bus communication between FIO I/O modules and Yokogawa CENTUM VP Field Control Units.

Q: Does the ANB10D-125/CU2T support redundant power operation?
A: Yes. The unit supports a dual-redundant power supply configuration using 220 – 240 V AC input.

Q: What hardware function does the CU2T connector unit provide?
A: The CU2T connector unit provides dual ESB bus connection points and bus termination components for ESB network installation.

Field Installation Guidelines

• Install the ANB10D-125/CU2T inside the specified Yokogawa cabinet or rack assembly.
• Verify rack mounting alignment before installing power supply modules and FIO I/O modules.
• Connect ESB bus cables through the CU2T connector units and confirm correct termination installation.
• Route ESB communication cables separately from high-voltage power wiring to reduce electrical interference.
• Apply proper grounding and shielding practices according to Yokogawa installation documentation.
• Confirm power supply wiring, polarity, and protective grounding before system energization.
• Install compatible ESB Bus Coupler Modules such as EC401 or EC402 in the FCU side when required.