Product Overview

The CP461-11 (Model: CP461-11) is a high-capacity Field Control Station (FCS) processor module specifically developed for Yokogawa’s CENTUM VP and integrated CS 3000 Distributed Control Systems (DCS). Operating as the central intelligence for control station operations, the CP461-11 (Style: S1) executes complex regulatory and sequence control logic with deterministic precision. It represents a significant hardware advancement over the previous CP461-10, offering optimized processing speeds and expanded Error-Correcting Code (ECC) memory to handle modern, high-density plant data requirements.

A hallmark of the CP461-11 (Part Number: CP461-11) is its support for Yokogawa's proprietary "Pair & Spare" redundant architecture. This design utilizes dual processor units running identical calculations in parallel; should a hardware discrepancy or failure occur, the system performs a bumpless switchover to the standby unit within milliseconds. This ensures zero interruption to process control, making it a critical component for high-availability industries such as oil refining, chemical synthesis, and power generation.

Detailed Technical Specifications

The CP461-11 Style S1 module is engineered for long-term reliability and high-speed data throughput.

• Manufacturer: Yokogawa Electric Corporation

• Model Number: CP461-11

• Style Code: Style S1

• System Compatibility: CENTUM VP, CENTUM CS 3000

• Module Function: Main Processing Unit for Field Control Station (FCS)

• Processor Architecture: High-performance CPU with real-time OS optimization

• Memory Specifications: Expanded ECC RAM and Flash memory for enhanced stability

• Redundancy Support: 1:1 Dual-Redundant "Pair & Spare" configuration

• Network Interface: Communicates via Vnet/IP through the rack bus

• Diagnostics: Integrated self-test, parity checking, and ECC memory protection

• Input Voltage: 24 VDC (Supplied through the FCS backplane)

• Power Consumption: Approx. 10-15W (Standard operation)

• Operating Temperature: 0°C to +60°C (32°F to 140°F)

• Operating Humidity: 5% to 95% RH (Non-condensing)

• Dimensions: 8.1 cm $\times$ 10.3 cm $\times$ 14.6 cm

• Net Weight: 0.5 kg (1.1 lbs)

• Country of Origin: Japan