Technical Specifications
- Processor Core: Dual independent 32-bit RISC industrial processor architecture, 400MHz base clock frequency
- RAM Memory Capacity: 256MB DDR2 high-speed real-time operation RAM
- Non-Volatile Flash Storage: 512MB industrial-grade flash memory for control logic program storage
- Maximum Supported I/O Capacity: 1024 digital discrete points, 128 analog control channels per single CPU module
- Internal Control Bus Architecture: Dual redundant control bus + system data bus dual independent bus design
- Communication Interfaces: 2×10/100Mbps Ethernet TCP/IP ports, 4×RS232/RS485 serial communication channels
- Supported Industrial Protocols: Modbus TCP, Modbus RTU, PROFIBUS DP, INFI 90 proprietary control bus protocol
- Module Power Supply: 24VDC rack backplane power input, ±10% voltage tolerance
- Rated Maximum Power Consumption: 18W full load operation
- Functional Safety Certification: IEC 61508 SIL 3 safety integrity level
- Operating Temperature Range: -20°C ~ +60°C
- Storage Temperature Range: -40°C ~ +85°C
- Relative Humidity Range: 5% ~ 95% RH non-condensing
- Rack Protection Class: IP40 indoor DCS rack mounting
- Physical Module Dimensions: 120mm (W) × 100mm (H) × 75mm (D) standard DIN rack slot
- Net Weight: 0.60kg
- Certifications: CE, UL, IEC 61131-3, SIL 3, RoHS compliant
Functional Features
- Dual-core processor parallel task execution separates real-time control loops from background data logging & communication tasks
- Full redundant hot-backup CPU support; seamless bumpless switchover between primary and standby processor without process disturbance
- Real-time closed-loop PID, cascade, ratio and feedforward process control algorithm execution
- Integrated alarm management system with timestamped fault storage, priority classification and remote workstation notification
- Historical trending data buffer with 30-day continuous process variable storage capacity
- IEC 61131-3 standard programming language support: Ladder Diagram, Function Block Diagram, Structured Text
- Hot-plug module replacement without full DCS rack power shutdown
- Built-in self-test (BIST) power-up diagnostic suite for CPU, memory, bus and communication hardware integrity verification
Working Principle
Dual 32-bit RISC processors operate in parallel isolated task partitions. Primary processor executes hard real-time process control logic with fixed 0.1ms minimum control scan cycle, continuously sampling analog/digital I/O data via dual redundant backplane bus. Secondary processor manages background tasks including Ethernet communication, historical data archiving and alarm event sorting. All control logic programs reside in non-volatile flash memory; RAM provides high-speed temporary data storage for process variable calculations. Hardware watchdog timer monitors processor operation; communication bus fault detection triggers automatic switchover to redundant standby CPU module to maintain uninterrupted process control.
Material & Structural Composition
- Module Housing: Black flame-retardant polycarbonate DIN rail rack enclosure
- Main Circuit Board: 8-layer heavy copper FR4 PCB with full conformal humidity & corrosion resistant coating
- Memory Hardware: Industrial wide-temperature DDR2 RAM chips and SLC NAND flash memory modules
- Communication Transceivers: Isolated Ethernet and serial communication isolation transformers
- Backplane Connector: Gold-plated multi-pin edge connector for redundant bus signal transmission
Advantage Highlights
- SIL 3 functional safety certification validates deployment on high-risk power, chemical and nuclear auxiliary process control loops
- Dual independent bus architecture eliminates single communication bus failure risk for critical control signals
- Bumpless redundant CPU switchover maintains continuous process variable regulation without production interruption
- Wide industrial temperature operating range supports unconditioned control room cabinet deployment
- IEC 61131-3 standard programming eliminates proprietary custom language learning barriers for engineering staff
- On-board historical trending buffer removes requirement for external data recording hardware for short-term process analysis
Applicable Industries
Thermal power generation plant DCS control, nuclear power auxiliary process monitoring, petrochemical continuous refining systems, fertilizer chemical synthesis plants, municipal large-scale water treatment facilities, metallurgical smelting furnace process control
Installation Mandatory Requirements
- Mount on standard 35mm DIN rail inside forced-air cooled IP54 DCS control rack cabinet
- Install paired primary/backup CPU modules in adjacent rack slots for redundant hot-backup configuration
- Separate Ethernet communication cabling from high-voltage AC power wiring with minimum 20cm separation distance
- Connect dedicated redundant 24VDC rack power supply with short-circuit protection circuit breakers
- Maximum operating altitude 1000m above sea level; reduce control scan frequency 6% per additional 1000m elevation
Operation & Maintenance Precautions
- Execute full BIST self-test diagnostic procedure monthly during scheduled plant maintenance shutdowns
- Backup flash memory control logic program to external storage media every 6 months continuous operation
- Avoid rack cabinet installation location adjacent to heat-generating power supply and transformer modules
- Prevent electrostatic discharge contact with exposed PCB circuit board during hot-swap module replacement
- Do not disconnect backplane bus cables during active primary CPU control cycle execution
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