Foxboro I/A Series Modules P0916CCOC Output Interface Module

Technical Dossier

Product Details And Specifications

Foxboro I/A Series Technical Notes

The Foxboro I/A Series (Intelligent Automation Series) is one of the most widely deployed Distributed Control System (DCS) platforms in global heavy industry. Installed across petrochemical complexes, nuclear power stations, crude oil refineries, pulp and paper mills, and large-scale chemical processing facilities, the I/A Series established a modular, fault-tolerant architecture that became a benchmark for process automation from the late 1980s through the 2010s. The P0916CCOC Output Interface Module is a representative component of this platform, providing analog output signal conditioning and interface functions within the I/A Series fieldbus environment. Foxboro (now a brand under Schneider Electric's Aveva/Foxboro portfolio) continues to support legacy I/A Series installations through extended lifecycle programs, making spare parts sourcing a critical operational requirement for plant maintenance teams worldwide.

The Evolution of I/A Series Architecture

The I/A Series was introduced by Foxboro in 1987 as a response to the limitations of centralized DCS architectures. Its core innovation was the Nodebus and Fieldbus communication infrastructure, which allowed distributed processing nodes to operate semi-autonomously. Early hardware generations (Series 1 and 2) used proprietary backplane designs with parallel bus communication. By the mid-1990s, the architecture evolved to support redundant Nodebus configurations and introduced the FBM (Field Bus Module) family as the primary I/O interface layer.

The transition from early P09xx-series analog output modules to the later FBM230/FBM231 generation introduced significant improvements in channel density, HART protocol support, and diagnostic transparency. However, this generational shift created a compatibility challenge: plants that standardized on P09xx-series hardware in the 1990s cannot directly substitute FBM-generation modules without controller configuration changes and, in some cases, cabinet rewiring. This has sustained long-term demand for original P09xx-series components, including the P0916CCOC, as maintenance spares for brownfield facilities that cannot justify a full DCS migration.

The I/A Series platform entered its mature/end-of-active-development phase in the 2010s following Schneider Electric's acquisition of Invensys (Foxboro's parent). Current Schneider Electric strategy positions the EcoStruxure Foxboro DCS as the successor platform, but I/A Series installations remain operational at thousands of sites globally, with lifecycle support commitments extending to 2030 and beyond for many module families.

I/A Series Full Catalog & Functionalities (SKU List)

The following SKUs represent verified, commonly stocked components within the Foxboro I/A Series platform. Each entry reflects a distinct functional role within the DCS architecture.

Analog Output Modules

• P0916CCOC: 4-channel analog output interface module, 4–20 mA, FBM-compatible backplane
• P0916CE: Analog output module, 8-channel, 4–20 mA, standard I/A Series FBM slot
• FBM202: 8-channel analog output, 4–20 mA, HART-capable, redundancy-ready
• FBM212: 8-channel analog output with HART pass-through, enhanced diagnostics

Analog Input Modules

• FBM201: 8-channel analog input, 4–20 mA / 1–5 V, standard resolution
• FBM211: 8-channel analog input with HART, high-resolution A/D conversion
• P0914YE: Analog input module, thermocouple/RTD, 8-channel, cold junction compensated
• P0914YF: Analog input, millivolt/thermocouple, 16-channel, DIN rail mount variant

Digital Input Modules

• FBM204: 32-channel digital input, 24 VDC, isolated, high-density I/O
• FBM214: 16-channel digital input, 120 VAC, optically isolated
• P0926GU: Digital input module, 16-channel, 24 VDC, standard I/A Series backplane

Digital Output Modules

• FBM205: 16-channel digital output, 24 VDC, solid-state relay, 0.5 A per channel
• FBM215: 8-channel digital output, 120/240 VAC, relay contact, 2 A per channel
• P0926GV: Digital output module, 16-channel, 24 VDC, sourcing type

Controller & CPU Modules

• CP60: Control Processor 60, primary DCS controller node, dual redundancy support
• CP40B: Control Processor 40B, mid-range node controller, Nodebus interface
• P0972VE: Workstation interface module, Nodebus to Ethernet gateway function

Communication & Network Modules

• FBM220: PROFIBUS DP master interface module, I/A Series to PROFIBUS network
• FBM237: Modbus RTU/TCP gateway module, serial and Ethernet dual interface

Quality Control for the I/A Series Range

I/A Series modules present specific quality verification challenges due to their proprietary Nodebus and Fieldbus communication protocols. Standard bench testing with generic I/O testers is insufficient to validate module functionality. DriveKNMS applies the following test procedures to I/A Series components:

• Backplane communication test: Each module is seated in a live I/A Series test rack and polled via Nodebus to confirm correct device identification and register response.
• Analog channel calibration verification: For analog output modules including the P0916CCOC, each channel is driven across the full 4–20 mA range and measured against a calibrated reference instrument (accuracy ±0.01 mA).
• Isolation resistance test: Channel-to-channel and channel-to-chassis isolation is verified at 500 VDC to confirm no degradation of optical isolation barriers.
• Thermal cycling: Modules are subjected to a 0°C to 60°C thermal cycle prior to final inspection to screen for latent solder joint failures common in aged PCB assemblies.
• Firmware and hardware revision logging: All tested units are logged by hardware revision code to ensure compatibility documentation is available at point of sale.