Description
YOKOGAWA CP461-50
Yokogawa CP461-50 is a high-performance processor module (CPU) for the CENTUM VP DCS system. It is applied to AFV300/AFV400 Field Control Units and serves as a replacement for the legacy CP461-10. This module is responsible for real-time control, computation and network communication.
1. Basic Information
Model: CP461-50Manufacturer: YokogawaSystem: CENTUM VP DCSCompatible Hardware: AFV300 / AFV400 Field Control UnitFunction: DCS Main Controller, performing regulatory control, sequence control, data exchange and fault diagnosisRedundancy: Supports dual redundant configuration (two modules used as a pair)
2. Core Technical Specifications
1) Processor & Memory
CPU: PowerPC 604e / 32-bit RISC, 1 GHz clock frequencyMemory: 512 MB SDRAM (1–2 GB for some versions)Storage: 16 GB SSD (for selected models)
2) Communication Interfaces
Control Network: Vnet/IP (Dual Redundant), Ethernet/IP, Modbus/TCPFieldbus: PROFIBUS DP, DeviceNetSerial Ports: RS-232C, RS-485
3) Electrical & Physical Parameters
Power Supply: 24 VDC, Power Consumption: ＜50 WOperating Temperature: -20°C ~ +70°CStorage Temperature: -40°C ~ +85°CHumidity: 5%–95% RH (Non-condensing)Protection Rating: IP20 (Front Panel) / IP65 (Internal)Dimensions (W×H×D): Approx. 190 × 140 × 60 mmWeight: Approx. 1.5 kg
3. Main Features
High-performance Real-time Control: The high-speed CPU executes complex PID control, sequence control and batch formula management, ideal for process industries such as chemical, power and metallurgy.
High-reliability Redundant Architecture: Adopts dual hot standby design with bumpless switchover, ensuring zero downtime for critical processes.
Diversified Networking & Expandability: Integrated with Vnet/IP, Ethernet, PROFIBUS and other protocols for connection to remote I/O and third-party devices.
Self-diagnosis & Alarm Functions: Equipped with power-on self-test, operational monitoring, fault code indication and event logging for rapid troubleshooting.
Long-term Stable Operation: Built with industrial-grade temperature resistance and anti-interference capability, adaptable to environments with dust, vibration and electromagnetic interference.
4. Typical Applications
Petrochemical Industry: Continuous process control for distillation, chemical reaction and furnace systems.
Power Industry: Main control of thermal power / nuclear power DCS, as well as boiler and turbine control.
Metallurgical Industry: Automatic control for blast furnaces, rolling lines and heating furnaces.
Water Treatment: Process monitoring for large water plants and wastewater treatment facilities.
5. Important Notes
This module is exclusively designed for the CENTUM VP system and matched with AFV300/AFV400 units; it is not compatible with other series of PLC/DCS.
Always install or remove the module with power cut off. Live operation may damage the backplane bus or cause system crash.
For redundant configuration, use paired modules of the same model and firmware version to avoid synchronization errors.
Keep the operating temperature within the range of -20°C ~ +70°C. Excessive temperature will trigger frequency reduction or shutdown protection.
Keep the gold fingers of modules and racks clean. Dust and oxidation will lead to poor contact and intermittent communication failures.
Adopt redundant 24 VDC power supply to prevent controller outage caused by single-point power failure.
