ANB10D-420 Yokogawa Unit

Configured for field I/O expansion in CENTUM VP control platforms, the Yokogawa ANB10D-420/CU2T/NDEL (ANB10D-420 ESB Bus Node Unit) provides direct physical/electrical execution of high-speed bus communication and field device integration.

Suffix Breakdown & Model Matrix

Hardware Specifications

Process Control and DCS Characteristics

• 4-20 mA HART loop protocol: The unit maintains signal path integrity for HART-enabled instrumentation, ensuring that device diagnostic data is processed and relayed to the DCS asset management host without attenuation.
• FOUNDATION Fieldbus / Profibus PA connectivity: The ESB bus architecture supports the deterministic exchange of digital fieldbus data, allowing for seamless integration of smart instrumentation into the process control network.
• Channel-to-channel isolation: Internal circuitry provides galvanic isolation between the ESB bus interface and field-connected I/O modules, protecting the control network from transients and common-mode noise.
• Cold junction compensation (CJC): The unit utilizes precision thermal sensing on the terminal boards to execute accurate CJC calculations for thermocouple signals, maintaining measurement precision across the node.

Frequently Asked Questions

Q: Is this model compatible with legacy ANB10D/CU2T configurations?

A: Yes. The ANB10D-420/CU2T/NDEL is a direct replacement for the legacy ANB10D/CU2T unit, maintaining form, fit, and functional compatibility.

Q: What is the requirement for the /NDEL software license?

A: The /NDEL code indicates the inclusion of the Node Expansion license. This must be active within the CENTUM VP database configuration to authorize the system to communicate with the additional node capacity.

Field Installation Guidelines

• Mounting: Secure the node unit into a standard 19-inch equipment rack using the four M5 screws. Ensure the insulation base (included as an accessory) is installed to maintain proper dielectric isolation between the chassis and the rack.
• Grounding: Bond the node chassis to the cabinet protective earth (PE) bus using a dedicated low-impedance ground cable. A solid ground reference is mandatory for high-speed ESB bus electromagnetic compatibility.
• Wiring: Connect the power supply to the redundant input terminals, ensuring proper phasing. Separate ESB bus communication cables from high-voltage AC lines to prevent induced interference and maintain data integrity. Verify that the ESB bus terminator included in the /CU2T unit is installed at the end of the bus chain.