Yokogawa ANR11D-420 S1 Node Interface Unit

Overview

The Yokogawa ANR11D‑420 S1 is a high-reliability 4–20 mA analog input module designed for integration into Yokogawa Node Interface Units (ANB10D, ANB11D, ANB12D) within CENTUM VP and CENTUM CS 3000 control systems. As part of the I/O Node architecture, it converts field analog signals into digital data, providing precise, isolated inputs to the Field Control Unit (FCU) for real-time process control.

This module is engineered for mission-critical industrial operations, offering robust signal isolation, continuous diagnostics, and seamless communication with redundant or standard node configurations.

Technical Specifications

General Information

Electrical Characteristics

• Input Signal: 4–20 mA

• Typical Channels: 8–16 per module

• Input Burden: Low (minimizes transmitter loading)

• Accuracy: ±0.1% FS (typical)

• Isolation: Channel-to-channel, Channel-to-system, optical/electrical

• Diagnostics: Open-circuit detection, range validation, module health monitoring

Node Interface Integration

• Communication via ANB-series backplane

• Redundant node operation support

• Online replacement in redundant configurations

• Compatible with marshalling and terminal boards (TBT, TERT, TE16 series)

Environmental Conditions

Mechanical Features

• Form Factor: Plug-in I/O module

• Mounting: ANB-series Node Interface Unit

• Cooling: Passive convection

Applications

• 4–20 mA signal acquisition from pressure, temperature, flow, and level transmitters

• Analytical and laboratory instrument integration

• Real-time process monitoring in DCS control loops

• Industrial control requiring precise and isolated analog inputs

FAQ / Similar Models

Q: Can the module operate in a redundant node setup?
A: Yes, it supports online replacement and full operation in redundant node configurations.

Q: What are the alternatives for higher channel density?
A: The ANR16D series supports 16-channel analog inputs with similar isolation and diagnostic features.

Q: Can it interface directly with field transmitters?
A: Yes, it is designed to interface with 4–20 mA transmitters via standard Yokogawa Node Units.