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Product Overview

The Foxboro P0926MX (FCP270) functions as the primary computational engine for the I/A Series Distributed Control System (DCS). This high-performance Field Control Processor executes complex control algorithms, regulatory loops, and sequential logic in real time. It manages the critical interface between supervisory software and field-side I/O, processing data from Fieldbus Modules (FBMs) with sub-millisecond precision. Often paired with fiber optic splitter kits for synchronized optical communication, the P0926MX ensures zero-downtime operation in large-scale refineries, chemical plants, and power generation facilities.

Technical Specifications

Parameter Details
Product Type Field Control Processor (FCP)
Series Foxboro I/A Series / Evo
Part Number P0926MX
Processor Architecture 32-bit RISC Microprocessor
Memory 64 MB RAM, 16 MB Flash
Communication Ports Dual Redundant 100 Mbps Ethernet
I/O Capacity Interfaces with full range of 200 Series FBMs
Operating Voltage 24 VDC Nominal
Operating Temperature –20 °C to +70 °C (–4 °F to +158 °F)
Dimensions 5 × 2 × 7 in (127 × 51 × 178 mm)
Condition 100% Brand New Original

Engineering Advantages

  • Deterministic Logic Execution: The 32-bit RISC architecture handles thousands of I/O points without latency. It ensures that PID loops and safety interlocks execute with consistent timing, preventing process oscillations in sensitive industrial reactions.

  • Fault-Tolerant Networking: Dual redundant 100 Mbps Ethernet ports provide simultaneous paths for data transmission. If one network segment fails, the P0926MX switches traffic instantly to the secondary port, maintaining visibility for the control room operators.

  • Optical Synchronization Support: The P0926MX integrates seamlessly with fiber optic splitters/combiners. This allows the processor to manage high-speed optical communication across redundant network meshes, providing total electrical isolation and immunity to electromagnetic interference (EMI).

  • Simplified Hot-Swapping: The module supports full online replacement. Maintenance teams swap processors without disconnecting field wiring or interrupting the power supply to the baseplate, keeping the process live during hardware maintenance.

  • Advanced Internal Diagnostics: Front-panel LEDs and internal software flags monitor the health of the processor, memory, and communication bus. The system identifies hardware degradation before a failure occurs, moving the plant from reactive to predictive maintenance.

FAQs

1. Does the P0926MX support redundant "Shadowing" configurations?

Yes. You can pair two P0926MX modules in a redundant configuration. The "primary" processor executes the control logic while the "shadow" stays synchronized; in the event of a primary hardware fault, the shadow assumes control in a bumpless transfer.

2. How does the P0926MX handle fiber optic communication?

While the processor manages the logic, it typically interfaces with passive fiber optic splitter/combiner kits (like the P0926MX splitter kit variant) to manage signal distribution across dual-path fault-tolerant meshes. This ensures high-speed, low-latency communication over long distances.

3. Is this P0926MX module compatible with older I/A Series FBMs?

The FCP270 maintains backward compatibility with 200 Series Fieldbus Modules. This allows facilities to modernize their central processing power while retaining their investment in legacy field wiring and baseplates.

4. Is this unit original or refurbished?

We supply this P0926MX in 100% Brand New original condition. Every unit ships in original factory packaging, ensuring the module meets all manufacturer performance specifications and industrial certifications (CE, UL, CSA, ATEX).

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