YOKOGAWA CP450C

Technical Specifications

• Core Processor: 32-bit single-core RISC, 600 MHz clock frequency
• System RAM: 512 MB DDR2 SDRAM
• Storage Medium: 2 GB built-in industrial flash memory
• Rated Power Input: 24 VDC ±10%, Max draw 1.8 A
• Static Power Consumption: ≤14 W full load
• Max Control Loop Capacity: 384 PID closed-loop control channels
• Total I/O Processing Capacity: 6144 signal points per station
• Fixed Control Cycle Baseline: 200 ms minimum configurable cycle
• Communication Ports: Dual Vnet/IP 100 Mbps Ethernet, RS-232 service port
• Electrical Isolation: 500 Vrms signal-power isolation
• Overall Size: 98 mm (W) × 236 mm (H) × 118 mm (D)
• Gross Weight: 0.46 kg
• Enclosure Protection: IP20 rack-mounted grade
• Permitted Operating Temp: 0 ℃ ~ +50 ℃ dew-free
• Storage Temperature Band: -25 ℃ ~ +65 ℃
• Humidity Operating Window: 5% ~ 85% RH no condensation

Function Features

1. Standard PID control library with derivative filtering and dead zone adjustment for stable process regulation
2. Sequential function chart (SFC) batch production control native support
3. Comprehensive hardware fault self-monitoring with coded fault registers for rapid troubleshooting
4. 1:1 hot standby redundant architecture, automatic fault switching without production interruption
5. Vnet control bus real-time data transmission for inter-station data sharing
6. Local historical data storage for 30-day process trend records
7. Modbus RTU/TCP communication interface for third-party PLC and HMI interconnection
8. Online program download and parameter modification without station shutdown

Performance Parameters

• Floating-point arithmetic throughput: 900 MIPS
• Redundant failover switching time: ≤120 ms
• Max I/O expansion rack quantity: 12 racks per CPU station
• Single rack maximum I/O channel limit: 32 points
• Configuration data storage retention: 8 years without external power supply
• Official rated MTBF: 105,000 continuous operating hours

Material Composition

• Outer casing: UL94 V-0 flame retardant ABS plastic
• Main circuit board: FR-4 high temperature resistant PCB, gold-plated backplane contact pins
• Heat dissipation component: Extruded aluminum passive cooling fin
• Internal wiring terminals: Tin-plated copper alloy anti-corrosion connectors

Structural Characteristics

• Slide-in modular design compatible with CENTUM CS3000 standard 7-slot rack
• Front panel integrated multi-color LED indicators for RUN, FAULT, NETWORK, REDUNDANT operational status
• Front accessible flash memory card slot for project backup and recovery
• Rear-side dedicated backplane connector for high-speed I/O bus communication
• Dual Ethernet RJ45 ports arranged on front panel for convenient wiring layout

Working Principle

Advantage Highlights

1. Mature industrial hardware architecture validated by decades of continuous process operation
2. Fanless passive cooling eliminates mechanical failure points
3. Low electromagnetic emission, compatible with high-interference factory environments
4. Full backward compatibility with all CENTUM CS3000 I/O and auxiliary modules
5. Simplified maintenance workflow with front-side accessible storage media
6. Stable redundant synchronization algorithm minimizing process fluctuation during switchover
7. Global Yokogawa service network for spare parts and technical on-site support

Applicable Industries

Installation Requirements

1. Mount inside dedicated CENTUM CS3000 metal rack with DIN lock fixed buckle
2. Maintain 15 mm minimum vertical clearance above and below module for heat convection
3. Cabinet internal forced air cooling required to maintain ambient temperature below 50 ℃
4. Separate high-current power wiring and low-voltage signal wiring with isolation partitions
5. Cabinet protective grounding resistance ≤4 Ω
6. Do not install near high-frequency inverters or high-voltage switchgears

Usage Precautions

1. Cut rack main power supply before inserting or removing module to avoid backplane bus damage
2. Only utilize original Yokogawa storage media; generic flash cards trigger data corruption
3. Avoid physical impact or scratch on front panel indicator housing during maintenance
4. Strictly prohibit deployment in environments with acid vapor, heavy oil mist or conductive dust
5. Execute redundant synchronization function inspection every 12 calendar months
6. Unauthorized disassembly of internal circuit voids all factory warranty coverage