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Product Description

High-Density Discrete Control Processing

The Yokogawa CP451-11 is a high-performance digital output and processor-integrated module designed for the CENTUM CS 3000 and CENTUM VP Distributed Control Systems (DCS). This module serves as a critical link between the DCS controller and discrete field equipment, providing 32 channels of isolated 24 VDC outputs. It is specifically engineered to handle high-density actuation tasks, driving relays, solenoid valves, indicator lamps, and interlock systems with deterministic timing and long-term stability in demanding industrial environments.

Industrial Reliability and Advanced Protection

Built for continuous operation, the CP451-11 features channel-to-bus optical isolation, ensuring that electrical noise or field transients do not propagate to the system backplane. Each of the 32 channels is equipped with independent overcurrent protection, safeguarding the module from field-side short circuits. The module supports both standard ON/OFF switching and pulse output functions, making it versatile for complex process control strategies. Its robust design is optimized for heat dissipation and vibration resistance, meeting the stringent standards required for oil, gas, and power generation facilities.

Detailed Technical Specifications


Industrial Application Scenarios

  • Refinery Safety Interlocks: Driving emergency shutdown solenoids and trip relays in hazardous processing units.

  • Power Plant Status Indication: Controlling large-scale LED mimic panels and control room alarm lamps.

  • Chemical Batching: Managing the high-speed pulse actuation of dosing valves for precise chemical injection.

  • Water Treatment: Coordinating the discrete sequencing of motor starters and motorized valve actuators across distributed nodes

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