ANB10D-415/CU2T YOKOGAWA Node Unit for Dual-Resistant ESB Bus

The ANB10D‑415/CU2T is a “Node Unit” from Yokogawa. It belongs to the “ANB10D” family of node‑units for a dual‑redundant ESB Bus (Enhanced Serial Bus).Its main purpose is

as an interface between field I/O modules (analog or contact / digital I/O) and a Field Control Unit (FCU) in a distributed control system (such as CENTUM VP). It

both communicates I/O signals over the ESB Bus and provides power to the connected I/O modules.ANB10D‑415/CU2T is a central node unit in a Yokogawa

distributed control / DCS architecture — it bridges field I/O modules and the control system via ESB Bus, provides power to I/O modules, supports

redundant bus paths for reliability, and is rack‑mountable for industrial control cabinets.

Frequently Asked Questions

Q: What does “ESB Bus Node Unit” mean?
A: “ESB Bus” is Yokogawa’s fieldbus / communication bus protocol for connecting remote I/O modules to central control units. A “Node Unit” is the hardware that interfaces those

field I/O modules (analog, digital/contact) with the ESB Bus, managing communication and power supply. The ANB10D series implements this.

Q: What is “dual‑redundant ESB Bus” and why is it important?
A: Dual‑redundant means there are two parallel bus communication paths (and often dual power supplies) — so if one path fails, the other maintains

communication. This greatly improves reliability and fault tolerance, especially in mission‑critical industrial processes.

ANB10D‑415/CU2T supports this redundancy.

Q: What kind of systems is this node unit used in?
A: Typically used in distributed control systems (DCS) such as Yokogawa’s CENTUM VP (or similar), for industrial process control — e.g.

chemical plants, power generation, oil & gas, water treatment, manufacturing facilities requiring robust

I/O distribution and reliable communication.