Yokogawa ANB10D-425/CU2T/NDEL ESB Bus Node Unit

Hardware Specifications

4-20 mA HART and Process I/O Interface Characteristics

The ANB10D-425/CU2T/NDEL transfers field analog and contact signals through the ESB bus architecture. Moreover, the node unit supplies power to installed I/O modules while maintaining communication between field devices and the FCU.

For Yokogawa process control architectures, signal handling can support field instrumentation interfaces that commonly use 4-20 mA HART loop protocol and other process I/O communication methods. In addition, the system design supports channel-level signal management functions required for distributed process monitoring applications.

The node unit connects to the FCU through an ESB Bus Couple Module. Therefore, the FCU installation requires EC401 or EC402 modules in the specified slots. A single configuration uses EC401 or EC402 in slot 7, while slot 8 remains empty.

Frequently Asked Questions

Q: What is the communication method between the ANB10D-425/CU2T/NDEL and the Field Control Unit?
A: The unit communicates with the FCU through the Yokogawa ESB bus. An EC401 or EC402 ESB Bus Couple Module is required for the connection.

Q: What power supply options are available for this ESB Bus Node Unit?
A: The unit supports 100-120 VAC, 220-240 VAC, and 24 VDC power supply configurations according to the selected suffix code.

Q: How is the ANB10D-425/CU2T/NDEL installed in a control system cabinet?
A: The unit uses a 19-inch rack mounting structure with M5 x 4 screws and an insulation bush accessory.

Field Installation Guidelines

Install the ANB10D-425/CU2T/NDEL in a compatible Yokogawa control system cabinet using the specified rack mounting method. Verify that the selected power supply voltage matches the suffix configuration before energizing the unit.

Connect the ESB bus interface through the required EC401 or EC402 Bus Couple Module installed in the FCU rack. Ensure correct slot allocation according to the selected single or redundant configuration.

Route ESB communication cables separately from high-voltage power wiring to reduce electrical interference. Maintain proper grounding and shielding practices for field signal cables connected to the I/O modules.

Confirm that the installation environment meets the temperature, humidity, vibration, and hazardous location requirements defined in the Yokogawa FIO System Overview documentation before system commissioning.