May 26, 2026

Foxboro P0176RW Product Description

The Foxboro P0176RW is a high-performance redundant communication interface module for the Foxboro I/A Series DCS (now Schneider Electric). Designed as a critical communication hub for distributed control systems, it delivers reliable, high-speed data connectivity with built-in redundancy to ensure uninterrupted operation in mission-critical industrial environments. Engineered to ISA S71.04 G3 standards, it provides exceptional resistance to vibration, humidity, and EMI/RFI interference. The P0176RW enables seamless integration of I/A Series controllers, I/O modules, and field devices, supporting real-time process monitoring and control with enhanced system availability.

Description

Foxboro P0176RW Product Description

Product Overview

Basic Information

Manufacturer: Foxboro (Invensys, now Schneider Electric)
Model: P0176RW
Product Type: Redundant Communication Interface Module, I/A Series P0 Series Module
Applicable System: Foxboro I/A Series DCS; compatible with I/A Series backplanes, controllers, and redundant network components
Mounting Style: Standard slot-mounted on I/A Series backplanes; supports hot-swap for online replacement
Protection Rating: IP20 (enclosure); designed for industrial control cabinet installation
Certifications: CE, UL, CSA compliant; meets ISA S71.04 G3 harsh environment and MIL-STD EMI specifications
Communication Ports: Dual Ethernet ports for redundant network connectivity
Power Supply: 24 VDC nominal input; supports redundant power feeds
Operating Temperature: 0°C to +60°C
Storage Temperature: -40°C to +85°C
Relative Humidity: 5% to 95% non-condensing
Vibration/Shock: Compliant with ISA S71.04 G3
Weight: Approximately 0.52 kg
Dimensions: 130 mm × 90 mm × 40 mm (H × W × D)
Country of Origin: United States
Warranty: Standard 5-year manufacturer warranty

Function and Positioning

The Foxboro P0176RW is positioned as a high-availability redundant communication gateway for I/A Series DCS, engineered to eliminate single points of failure in industrial control networks. Its core functions include redundant data routing, protocol conversion, and error checking to ensure continuous, reliable communication between the DCS and field devices. The dual-port design enables automatic failover between primary and secondary communication paths, minimizing downtime during network faults or maintenance. It supports seamless integration with I/A Series controllers, I/O modules, and workstations, facilitating real-time monitoring and control of critical process variables. Built-in diagnostics detect communication faults, network errors, and hardware issues with local LED indicators and remote DCS alerts. The P0176RW optimizes network reliability in high-interference environments, serving as a robust communication backbone for critical industrial automation applications where uptime is paramount.

Core Performance Parameters

Communication Protocol: Supports I/A Series proprietary protocols and standard Ethernet (TCP/IP, Modbus TCP/IP) for broad compatibility.
Data Transfer Rate: Up to 100 Mbps per Ethernet port, ensuring fast, low-latency data exchange.
Redundancy Configuration: Dual independent Ethernet ports with automatic failover (switchover time < 500 ms) for high-availability networks.
Network Topology: Compatible with star, mesh, and redundant ring configurations for flexible system design.
Fault Tolerance: Built-in error detection/correction, redundant communication paths, and hot-swap capability for uninterrupted operation.
Diagnostic Features: LED indicators for power, link status, activity, and fault conditions; remote diagnostics and fault logging via DCS.
Isolation: Electrical isolation between communication ports and backplane to prevent noise interference and ground loops.
Configuration: Software-configurable network parameters (IP address, subnet mask, redundancy mode) for easy deployment.
Environmental Stability: Operates reliably at 0°C to +60°C; EMI/RFI resistant per ISA G3 standards.
Hot-Swap Support: Enables online module replacement without system shutdown or data loss.

General Adaptable Accessories

Mounting Accessories: I/A Series backplanes, slot guide rails, module retention clips, and rack mounting hardware.
Power Supply Accessories: 24 VDC redundant power supply modules, power distribution cables, terminal blocks, and surge protectors.
Communication Accessories: Industrial Ethernet patch cords, managed network switches, fiber optic converters, and network terminators.
Redundancy Accessories: Redundant synchronization cables, network redundancy modules, and data matching assemblies for seamless failover.
Replacement Parts: Internal fuse kits, LED indicator assemblies, enclosure gaskets, and Ethernet port connectors.
Diagnostic & Configuration Tools: I/A Series configuration software, network diagnostic tools, and portable communication testers.
Environmental Protection Accessories: Cabinet cooling fans, dust filters, vibration isolation mounts, and EMI shielding components.
Cable Management: Shielded cable ties, cable organizers, and cable trays for neat, low-interference wiring.

Applicable Equipment and Fields

The Foxboro P0176RW is designed for Foxboro I/A Series DCS installations across process industries requiring maximum system uptime and robust communication. Key application sectors include oil and gas (refineries, petrochemical plants), chemical manufacturing, thermal power generation, pulp and paper, municipal water and wastewater treatment, pharmaceuticals, metals and mining, and food and beverage. It is ideal for connecting controllers, I/O modules, and workstations in large-scale distributed control systems, supporting real-time monitoring and control of critical process variables such as pressure, flow, level, temperature, and pH. The module’s rugged, redundant design suits harsh on-site environments with high EMI/RFI, integrating seamlessly with other I/A Series components to deliver scalable, reliable DCS solutions that enhance process efficiency, reduce maintenance costs, and enable predictive asset management for industrial facilities.

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