Yokogawa ANB10D-400 Dual-Redundant ESB Bus Node Unit

Hardware Specifications

Process Signal Interface and DCS Communication Features

The ANB10D-400 operates as an ESB bus node interface between FCU hardware and distributed field I/O modules. Moreover, it supports Yokogawa process control architectures by transferring analog I/O and contact I/O signals through the ESB communication network.

The unit accepts ESB Bus Interface Slave Modules such as SB401 for redundant communication configurations. In addition, the node architecture allows installation of multiple I/O modules to increase distributed signal acquisition capacity while maintaining centralized CENTUM VP control.

For Yokogawa process instrumentation systems, the hardware design supports typical DCS signal processing functions including 4-20 mA HART loop protocol interfaces, FOUNDATION Fieldbus and Profibus PA connectivity through compatible I/O modules. Furthermore, supported I/O modules can provide channel-to-channel isolation and cold junction compensation (CJC) functions for specific analog measurement applications.

The dual-redundant power supply structure uses two power modules such as PW481, PW482, or PW484 to maintain power distribution for installed I/O modules. Therefore, the ANB10D-400 configuration supports continuous operation requirements in distributed process control installations.

Frequently Asked Questions

Q: What communication function does the Yokogawa ANB10D-400 provide?
A: The ANB10D-400 provides dual-redundant ESB bus communication between the Field Control Unit and connected field I/O modules.

Q: How many I/O modules can be installed in the ANB10D-400 node unit?
A: The ANB10D-400 supports installation of up to 8 I/O modules within the node unit configuration.

Q: What power supply configuration does the ANB10D-400 use?
A: The unit uses a dual-redundant power supply architecture and supports 24 VDC input operation with compatible Yokogawa power supply modules.

Field Installation Guidelines

• Install the ANB10D-400 in the specified 19-inch rack structure and secure the mechanical mounting points before connecting field wiring.
• Install supported ESB Bus Interface Slave Modules according to the Yokogawa hardware configuration manual.
• Separate ESB communication cables from high-voltage power cables to reduce electrical interference during operation.
• Connect grounding and shielding layers according to Yokogawa installation requirements for the CENTUM VP system.
• Verify power supply module installation before applying 24 VDC input power.
• Confirm ESB bus communication status through system diagnostics after completing hardware installation.