ANB10D-420/CU2T Dual-Redundant ESB Bus Node Unit Yokogawa 

Hardware Specifications

4-20 mA HART and Process Signal Interface Characteristics

The ANB10D-420/CU2T operates within Yokogawa process control architectures where field signals are collected through installed I/O modules and transferred to FCU processing units through the ESB bus. Moreover, the node unit supports integration with Yokogawa FIO modules that handle standard process instrumentation interfaces, including analog and contact I/O signal processing.

The unit provides electrical communication between field-level I/O modules and the CENTUM VP controller layer. In addition, the ESB bus structure maintains organized signal transmission between distributed I/O stations and FCU hardware while the node unit supplies operating power to installed I/O modules.

The /CU2T connector assembly provides ESB bus termination functions, which maintain proper bus electrical characteristics during system installation. Therefore, correct terminator configuration is required when connecting the node unit into the ESB bus topology.

Frequently Asked Questions

Q: What communication function does the Yokogawa ANB10D-420/CU2T provide?
A: The unit transfers field I/O module signals between the installed FIO modules and the CENTUM VP FCU through the ESB bus interface.

Q: Can the ANB10D-420/CU2T operate with redundant ESB bus connections?
A: Yes. The unit supports dual-redundant ESB bus configurations when connected with compatible FCU ESB Bus Coupler Modules.

Q: What is the function of the /CU2T connector unit?
A: The /CU2T connector unit provides ESB bus connection and termination functions for proper bus electrical operation.

Field Installation Guidelines

Install the ANB10D-420/CU2T inside a compatible control cabinet using the specified rack mounting method. Ensure sufficient clearance around the unit for cable routing and maintenance access.

Connect the ESB bus cables according to Yokogawa installation documentation and verify that the required bus termination configuration is applied. When using redundant ESB bus communication, install compatible ESB Bus Coupler Modules in the designated FCU slots.

Separate ESB communication wiring from high-voltage power cables to reduce electrical interference. Maintain proper grounding practices for cabinet structures, cable shields, and signal reference points according to plant electrical standards.

Before energizing the unit, confirm power supply wiring, connector seating, module installation position, and redundancy configuration.