DNBT P0971WV Foxboro dual nodebus module for I/A Series DCS, redundant NodeBus communication interface, reliable replacement spare part for process control system.

Product Overview

• Part No: DNBT, P0971WV
• Brand: FOXBORO
• Category: I/A Series Dual NodeBus Communication Module

DNBT P0971WV is a dual NodeBus interface communication module for Foxboro I/A Series distributed control system. It establishes redundant NodeBus links between control processors and field FBM I/O modules, realizes real-time bidirectional transmission of control commands and field process data. Dual bus design supports redundant communication to avoid single point failure. Built-in hardware and communication diagnostic function, standard rack mounting structure, widely used in DCS maintenance, retrofit and upgrade projects.

Core Features

• Dual independent NodeBus communication interfaces for redundant network
• Real-time data exchange between CP controllers and FBM I/O modules
• Built-in comprehensive self-diagnosis for communication and hardware faults
• Anti-interference design for complex industrial electromagnetic environment
• Front panel LED indicators for power, communication and fault status

• Standard single-slot rack installation for control cabinet

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Technical Specifications

• Operating temperature: 0°C ~ +60°C
• Storage temperature: -40°C ~ +85°C
• Humidity: 5%–95% non‑condensing
• Protection class: IP20 inside control cabinet

• Weight: approx. 0.95 kg

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Compatibility & Application

• Compatible with Foxboro I/A Series CP30, CP40, CP60 controllers and FBM I/O modules
• Widely deployed in power, chemical, petrochemical and pharmaceutical process plants