Foxboro P0951CJ-C

Foxboro P0951CJ-C

Product Introduction
The P0951CJ-C is a specialized hardware component within the Foxboro I/A Series Distributed Control System. The “-C” suffix typically denotes a specific operational characteristic, revision, or configuration variant, providing essential physical or functional support to the control infrastructure.

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Description

Foxboro P0951CJ-C

Technical Specifications

  • Processor: 32-bit industrial-grade RISC processor.
  • Instruction Speed: 0.1 µs/Boolean instruction, 0.5 µs/Floating-point operation.
  • Memory: 8 MB Program Memory, 4 MB Data Memory.
  • Communication: Integrated standard 100Mbps fiber optic Ethernet interface; supports Ethernet 10/100BaseTX, ControlNet, and RS-232.
  • I/O Expansion: Supports up to 32 Series 200 FBM modules natively, expandable to 128 FBMs via FEM100.

Key Features

  • Advanced Process Control: Executes regulation, logic, timing, and sequence control for complex industrial processes.
  • High-Speed Networking: Connects seamlessly to the Foxboro Evo control network for high-speed data transmission.
  • Redundancy & Fault Tolerance: Features a dual-module parallel architecture supporting hot-standby redundancy and power redundancy.
  • Data Integrity: Utilizes bit-by-bit matching technology to verify data consistency and prevent erroneous information propagation.

Application Scenarios
Widely deployed in power plants, petrochemical facilities, and oil refineries to manage critical process variables like temperature, pressure, and flow, while ensuring continuous production safety.

Performance Parameters

  • Operating Temperature: 0°C to 60°C
  • Storage Temperature: -40°C to 85°C
  • Power Supply: 24 VDC, 10W power consumption, supports redundant power configuration.
  • Protection Rating: IP20

Material Composition
Enclosed in a rugged die-cast aluminum housing designed to withstand G3-class harsh environments, including high dust levels and strong electromagnetic interference.

Structural Characteristics
Compact dimensions of 140mm × 165mm × 45mm with a lightweight design of 0.6 kg. Features comprehensive front-panel status indicators and robust rear communication interfaces.

Operating Principle
The 32-bit RISC processor continuously polls connected I/O modules, executes high-speed control algorithms, and transmits processed data over the 100Mbps Ethernet network. In redundant setups, it uses bit-by-bit matching to ensure seamless failover without process disruption.

Installation Requirements
Must be installed on a compatible Foxboro 200 Series baseplate. The control cabinet must maintain adequate ventilation and a low-impedance protective earth ground to enhance noise immunity.

Usage Precautions
When configuring hot-standby redundancy, ensure primary and backup modules have identical firmware versions. Always follow standard ESD (Electrostatic Discharge) handling procedures during installation or replacement.

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