YOKOGAWA ANB10D-425CU2N – Dual‑Redundant Vnet/IP Field I/O Node Interface for CENTUM VP / ProSafe‑RS

The YOKOGAWA ANB10D-425CU2N is a Field I/O node interface unit designed for Vnet/IP networks. In practical terms, this module sits at the front of a Yokogawa FIO stack and bridges your remote I/O to the control network with dual‑redundant Ethernet. From my experience, plants choose the ANB10D when they want rock‑solid communication, easy expansion of FIO modules (AI, AO, DI, DO, HART-capable cards), and minimal disruption during maintenance.

You might notice that the “D” in ANB10D typically indicates a dual configuration, and the build code “-425CU2N” appears to be a factory option set often associated with coated/industrial variants suitable for harsher environments and redundant networking. That’s exactly what many brownfield upgrades need when they’re standardizing on CENTUM VP or coordinating remote I/O under ProSafe‑RS.

Order Placement Process & Guarantees

• – Warranty: 365 days from delivery

• – Delivery: 1 week if in stock; no more than 1 month at the latest

• – Payment: 50% advance payment; full payment prior to delivery

– Express options: FedEx, UPS, DHL

Key Features

• Dual‑redundant Vnet/IP – Two independent 100BASE‑TX paths help ensure bumpless switchover during cable, switch, or segment failures.
• FIO ecosystem support – Works with Yokogawa FIO modules (AI, AO, DI, DO, pulse, and HART pass‑through), so expansion is straightforward.
• High availability design – Redundancy at the network layer; supports redundant power and module strategies depending on the chosen FIO base.
• Diagnostics & status LEDs – Clear front indicators for power, link, and health; speeds up troubleshooting in most cases.
• Industrial temperature range – Built for control cabinets in process areas where temperature swings are common.
• Coating option (build‑code dependent) – Conformal coating seems to be included in this variant for better resistance to humidity and corrosive gases.
• Seamless integration – Naturally fits CENTUM VP architectures and can be used alongside ProSafe‑RS remote I/O topology rules.

Technical Specifications

Brand / Model	YOKOGAWA ANB10D-425CU2N
HS Code	8537.10 (Boards, panels, consoles for electric control, ≤1000 V)
Power Requirements	24 VDC nominal (typically 19.2–28.8 VDC range)
Operating Temperature	0 to 55 °C (typical industrial range)
Communication Interfaces	Vnet/IP dual 100BASE‑TX (RJ‑45), redundant network paths; backplane interface to Yokogawa FIO base
Signal I/O Types (via FIO)	Analog Input/Output, Discrete Input/Output, Pulse; HART pass‑through with HART‑capable FIO modules
Redundancy	Dual network ports; supports redundant power and I/O strategies depending on base configuration
Installation Method	Mounts on Yokogawa FIO base plate; cabinet/panel installation, commonly in 19″ racks with sub‑panel
Form Factor	Compact, lightweight NIU for high‑density FIO stacks (base‑mounted)

Application Fields

This model is typically selected in distributed control systems where uptime is critical and remote I/O needs to scale cleanly:

• Oil & Gas – wellhead skids, compressor stations, pipeline block valves with redundant comms.
• Chemicals & Petrochemicals – process units requiring HART diagnostics and mixed AI/DI densities.
• Power Generation – balance‑of‑plant I/O and turbine auxiliary systems over Vnet/IP.
• Water & Wastewater – distributed lift stations and treatment basins with cabinet‑level redundancy.
• Pharmaceuticals – validated environments where coated hardware helps with humidity and cleaning agents.

Advantages & Value

• Reliability under network faults – Dual Vnet/IP paths reduce nuisance trips and help maintain control loops during maintenance.
• Compatibility – Plays nicely with Yokogawa FIO modules, CENTUM VP engineering tools, and typical ProSafe‑RS remote I/O layouts.
• Lifecycle economy – Standardized spares across units and coated options can cut unplanned downtime and field service visits.
• Easy expansion – Add I/O slices without rethinking the network side; engineering time stays predictable.
• Support – Availability of documentation, firmware, and field‑proven configurations shortens FAT/SAT cycles.

A quick customer story: a maintenance lead at a midstream facility told us their ANB10D nodes “rode through” a switch firmware upgrade with zero loop interruption—seems small, but it saved them a night shift and a temporary bypass procedure.

Installation & Maintenance

• Cabinet & mounting – Install on a Yokogawa FIO base plate fixed to a grounded sub‑panel. Keep 25–40 mm side clearance for airflow and service.
• Power wiring – Regulated 24 VDC supply; separate clean 24 VDC for control where possible. Use redundant feeds if the base supports it.
• Networking – Run two independent Ethernet paths to separate switches. Shielded Cat5e/6 recommended; follow plant EMC and grounding practices.
• Addressing & time – Assign IPs per site standard; enable SNTP on Vnet/IP to keep sequence‑of‑events aligned across nodes.
• Routine checks – Inspect LED status, verify link redundancy, review diagnostics during PM rounds. Keep ventilation filters and cabinet interiors clean.
• Firmware & documentation – Apply tested firmware only; back up configurations after changes. Label cables/ports to speed up any future swap.

Quality & Certifications

• CE compliant; UL/cUL listing and RoHS conformance commonly available for Yokogawa FIO hardware.
• Manufactured under ISO 9001 quality systems.
• Warranty: 12 months (365 days) from delivery.

If you’re matching an existing installed base, feel free to share your current node topology and FIO card list. I can cross‑check the ANB10D-425CU2N build code for coating and redundancy expectations so you don’t over‑ or under‑spec the replacement.