YOKOGAWA CP451-51

Description

1. Product Description

2. Product Parameters

Parameter	Specification
Processor	32-bit RISC processor
Memory	128KB program memory, 128KB data memory
I/O Capacity	Up to 256 input/output points
Communication	Ethernet, RS-232/485, optional expansion slots (Modbus, Profibus compatible)
Control Functions	PID control, cascade control, ratio control
Power Supply	AC 100–240V (50/60Hz) or 24V DC (±10%)
Operating Temperature	-40°C to +70°C (industrial grade)
Dimensions	96 x 96 mm (panel mount)
Weight	1 kg
Certifications	Industrial vibration/shock resistance, CE compliant

YOKOGAWA CP451-51

3. Advantages and Features

• High-Speed Performance: 32-bit processor ensures real-time data processing for critical operations.
• Versatile Connectivity: Supports multiple communication protocols and expansion modules for flexible I/O configurations.
• Rugged Design: Industrial-grade construction withstands extreme temperatures, vibrations, and shocks.
• User-Friendly Interface: Intuitive configuration via built-in interfaces or remote software tools.
• Redundancy Support: Dual redundant terminal blocks for secure connections in fault-tolerant systems.

4. Application Areas and Case Studies

• Industries: Manufacturing, energy production, water treatment, chemical plants.
• Use Cases:
  • Manufacturing: Controlling conveyor systems and optimizing production line efficiency.
  • Energy: Monitoring boiler systems and managing turbine operations in power plants.
  • Case Study: A water treatment facility in Southeast Asia deployed the CP451-51 to centralize control of 100+ sensors. Its real-time diagnostics reduced downtime by 15% and improved water quality consistency.

5. Competitive Comparison

• Integrated Redundancy: Built-in dual terminal blocks for seamless failover, reducing reliance on external hardware.
• Wide Power Range: Supports both AC and DC inputs, adapting to diverse industrial power environments.
• Modular Scalability: Optional expansion slots allow customization without replacing the entire controller.
  

  YOKOGAWA CP451-51

6. Selection Recommendations

• Compatibility: Verify compatibility with existing DCS/PLC systems (e.g., Yokogawa CENTUM VP, Siemens S7).
• I/O Requirements: Match input/output types (analog/digital) and capacity to sensor/actuator needs.
• Environment: Ensure the operating temperature range (-40°C to +70°C) suits harsh industrial settings.
• Expansion Needs: Evaluate optional modules (e.g., communication, I/O) for future scalability.

7. Precautions

• Wiring: Separate power, analog, and digital signal cables to avoid interference; use shielded twisted pairs for analog signals.
• Grounding: Ensure proper grounding for noise reduction and safety.
• Firmware Updates: Regularly update firmware via Yokogawa’s official tools to enhance security and functionality.
• Maintenance: Schedule annual inspections for terminal connections and environmental conditions.