Product Overview

The Foxboro RH924WA (Field Control Processor 280) represents the next generation of high-performance distributed control for the Foxboro Evo and I/A Series DCS. This 100% Brand New original FCP280 module utilizes a 64-bit RISC CPU to execute regulatory, logic, timing, and sequential control strategies with significantly higher throughput than its predecessors. By integrating 256 MB of SDRAM, the RH924WA handles larger, more complex control databases while maintaining microsecond-level execution determinism. It serves as the primary controller for petrochemical, oil & gas, and power generation facilities where high-density I/O integration and zero-latency communication are non-negotiable requirements.

Technical Specifications

Engineering Advantages

• Next-Generation Computational Power: The 64-bit architecture provides a massive performance leap over the FCP270. It handles more control loops and complex sequences within a single hardware footprint, reducing the total number of processors required for large-scale plant expansions.

• Superior Fault-Tolerant Redundancy: The RH924WA supports high-availability "hot-standby" configurations. When paired in a redundant baseplate, the secondary processor tracks the primary's state in real-time. This ensures a bump-less transfer of control during hardware faults, preventing costly process shutdowns.

• Extended Industrial Durability: Designed for the edge, this module operates reliably in extreme temperatures ranging from -40°C to +70°C. This eliminates the need for expensive environmental conditioning in remote instrument enclosures or cabinet rooms.

• Fiber Optic Network Security: The 100 Mbps fiber optic interface provides total immunity to electromagnetic interference (EMI) and radio frequency interference (RFI). This optical isolation prevents ground loop currents from damaging the CPU, a critical advantage in power-dense environments like switchgear rooms.

FAQs

• Can the FCP280 (RH924WA) replace an existing FCP270? The FCP280 offers significantly more memory and processing power. While it integrates into Foxboro Evo environments seamlessly, you should verify baseplate compatibility and software version requirements to leverage the full 64-FBM support capacity.

• How does the RH924WA handle non-volatile data storage? The module stores the entire control database and operating system in its 128 MB onboard Flash memory. Upon a power cycle, the RH924WA restores all control strategies automatically, ensuring the plant returns to a safe state without manual data reloads.

• Is this module suitable for safety-related applications? Yes. The RH924WA meets IEC 61508 standards and is frequently utilized in critical control loops where high reliability and deterministic response times are essential for asset protection.