May 26, 2026

Foxboro NCNI Product Description

The Foxboro NCNI is a high-performance Network Communication Interface Module designed for the Foxboro I/A Series Distributed Control System (DCS), now part of Schneider Electric’s industrial automation portfolio. Engineered as a dedicated communication hub, it enables seamless, high-speed data exchange between I/A Series controllers, I/O modules, and third-party devices across industrial networks. Built with a rugged industrial-grade enclosure and compliant with ISA S71.04 G3 harsh environment standards, it withstands heavy dust, strong electromagnetic interference, and wide temperature fluctuations. The NCNI integrates advanced protocol processing, data routing, and network redundancy features, ensuring reliable and deterministic communication for mission-critical process industries. As a core connectivity component of the I/A Series DCS, it bridges different network segments and protocols, supporting both peer-to-peer and client-server communication models while maintaining system stability and scalability for complex automation applications.

Description

Foxboro NCNI Product Description

Product Overview

Basic Information

Manufacturer: Foxboro (Invensys, now Schneider Electric)
Model: NCNI
Product Type: Network Communication Interface Module, DCS Communication Processor
Applicable System: Foxboro I/A Series DCS; fully compatible with I/A Series backplanes, control processors (e.g., K0143ACA, K0143AC-F), FBM I/O modules, and redundant power supplies
Mounting Style: Standard slot-mounted on I/A Series DCS backplanes; supports hot-swap for online replacement without system shutdown
Protection Rating: IP20 (enclosure); designed for installation in industrial control cabinets
Certifications: CE, UL, CSA compliant; meets ISA S71.04 G3 harsh environment specifications; certified for general industrial and non-hazardous area use
Processor: 32-bit industrial communication processor optimized for protocol handling and data routing
Memory: Dedicated buffer memory for real-time data caching, protocol stack execution, and network management
Power Supply: 24 VDC input with low power consumption; supports redundant power configuration for enhanced reliability
Operating Temperature: 0°C to +60°C
Storage Temperature: -40°C to +85°C
Relative Humidity: 5% to 95% non-condensing
Vibration Resistance: Compliant with ISA S71.04 G3; withstands industrial random vibration and mechanical shock
Weight: Approximately 0.65 kg
Dimensions: 145 mm × 170 mm × 48 mm (H × W × D)
Country of Origin: United States
Warranty: Standard 5-year manufacturer warranty

Function and Positioning

The Foxboro NCNI serves as the central network communication gateway and protocol converter for the Foxboro I/A Series DCS, positioned to deliver high-reliability, deterministic communication and seamless protocol interoperability for complex industrial processes. Its core function is to manage and route data between the I/A Series Mesh control network, fieldbus networks, and external systems, ensuring real-time and error-free information exchange. The module supports multiple industrial communication protocols, enabling integration with third-party PLCs, SCADA systems, HMI devices, and field instruments. It features advanced data filtering, prioritization, and routing capabilities, optimizing network traffic and reducing latency for critical control data. The NCNI supports network redundancy with seamless failover, preventing communication loss during network link or hardware faults. It also provides comprehensive network diagnostics, including traffic monitoring, fault detection, and alarm logging, facilitating proactive maintenance and troubleshooting. As a critical bridge between the DCS and external systems, it enables the I/A Series DCS to operate as part of a larger industrial automation ecosystem, supporting both new plant installations and legacy system modernization projects.

Core Performance Parameters

Processor Performance: 32-bit industrial communication processor delivers high-speed protocol processing and data routing, supporting deterministic communication with minimal latency.
Communication Protocols: Native support for Foxboro Mesh, Modbus TCP/IP, Modbus RTU, Ethernet IP, and other industrial protocols; enables protocol conversion and seamless interoperability.
Network Interfaces: Equipped with multiple 10/100 Mbps Ethernet ports for Mesh network and external system connections; supports auto-negotiation and full/half duplex modes.
Data Throughput: High-bandwidth data transfer capability with support for large message sizes and high connection counts, ensuring efficient handling of real-time control and monitoring data.
Redundancy Performance: Supports network redundancy with seamless failover; redundant port configuration ensures continuous communication during link failures.
Data Handling: Advanced data filtering, prioritization, and routing; supports multicast and broadcast communication for efficient data distribution.
Diagnostic Capabilities: Real-time network traffic monitoring, fault detection, and alarm generation; provides detailed status information via local indicators and remote monitoring tools.
Configuration Flexibility: Supports online configuration and parameter tuning without system shutdown; compatible with I/A Series system management tools for centralized configuration.
Environmental Adaptability: Operates stably in 0°C to +60°C; withstands high humidity, dust, and electromagnetic interference per ISA G3 standards.
Power Consumption: Low power draw at 24 VDC, reducing heat generation and improving energy efficiency.

General Adaptable Accessories

Mounting Accessories: Standard I/A Series backplanes, slot guide rails, module retention clips, and rack mounting hardware for secure and hot-swap compatible installation.
Power Supply Accessories: 24 VDC redundant power supply modules, power distribution cables, terminal blocks, and surge protectors for stable and isolated power input.
Communication Accessories: 10/100 Mbps Ethernet cables (copper/fiber-optic), network switches, media converters, and patch cords for Mesh network and external system connectivity.
Redundancy Accessories: Redundant synchronization cables, network redundancy modules, and failover control units for high-availability communication configurations.
I/O and Controller Accessories: Compatible I/A Series control processors, FBM I/O modules, and fieldbus connection cables for integrated system communication.
Replacement Parts: Internal fuse kits, LED indicator assemblies, enclosure gaskets, and terminal blocks for routine maintenance.
Diagnostic and Configuration Tools: I/A Series network management software, protocol analyzers, portable communication testers, and configuration utilities for setup, troubleshooting, and online updates.
Environmental Protection Accessories: Cabinet cooling fans, dust filter assemblies, vibration isolation mounts, and EMI shielding components for harsh industrial environments.
Cable Management Parts: Cable organizers, shielded cable ties, and cable trays for neat wiring and reduced electromagnetic interference.

Applicable Equipment and Fields

The Foxboro NCNI is designed exclusively for Foxboro I/A Series DCS installations across process industries that demand high-reliability, deterministic network communication and seamless protocol interoperability for critical operations. Key application sectors include oil and gas (offshore platforms, refineries, petrochemical plants, natural gas processing), thermal power generation and combined-cycle power plants, chemical manufacturing (fine, bulk, and specialty chemicals), pulp and paper production, municipal water supply and wastewater treatment, pharmaceutical and biotechnology manufacturing, metals and mining (smelting, processing, mineral separation), and food and beverage processing. It is ideal for connecting distributed control nodes, integrating third-party automation equipment, and enabling remote monitoring and control across large-scale industrial facilities. The module’s multi-protocol support, network redundancy, high-speed data processing, and wide environmental adaptability make it suitable for installation in both indoor control rooms and harsh on-site industrial environments, including high-temperature, high-humidity, and high-electromagnetic-interference areas. It pairs seamlessly with I/A Series control processors, FBM I/O modules, and redundant power supplies to form a complete, high-reliability DCS communication solution, ensuring safe, stable, and efficient data exchange for continuous production processes while minimizing unplanned downtime and maintenance costs.

Contact Info