GE IC697CPM790 High-Performance CPU Module with TMR

Description

Technical Specifications

• Manufacturer: General Electric (GE Fanuc, now Emerson)
• Model Number: IC697CPM790
• Module Type: Central Processing Unit (CPU)
• Product Series: Series 90-70 PLC
• Processor: 80486DX2, 32-bit architecture
• Clock Speed: 64 MHz
• Execution Speed: 0.4 µs per Boolean instruction
• Memory: 1 MB battery-backed RAM
  • User Program Memory: 512 KB
  • Data Memory: 512 KB
• I/O Capacity (Simplex Mode):
  • Discrete: 12,000 points (inputs/outputs mixed)
  • Analog: 8,000 words (inputs/outputs mixed)
• I/O Capacity (TMR Mode):
  • Voted Discrete: 2,048 inputs / 2,048 outputs
  • Voted Analog: 1,024 inputs
• Communication Ports:
  • 1 × RS-232 (for programming, HMI, SNP)
  • 1 × RS-422/485 (for Modbus RTU, SNP-X, Genius LAN)
• Real-Time Clock (RTC): Integrated, ±3.5 seconds/day accuracy
• Power Consumption: 5 V DC, 3.2 A (16 W)
• Operating Temperature:
  • Forced Air: 0°C to 60°C (32°F to 140°F)
  • Natural Convection: 0°C to 40°C (32°F to 104°F)
• Storage Temperature: -40°C to 85°C (-40°F to 185°F)
• Protection Rating: IP20
• Certifications: UL, CE, IEC 61131-2, TÜV (for safety applications)
• Weight: 0.79 kg (1.75 lbs)
• Dimensions: 170 mm × 150 mm × 40 mm

Key Features

1. Triple Modular Redundancy (TMR): Supports three-CPU redundant configuration with 2-out-of-3 voting logic. Any single module failure results in bumpless, uninterrupted system operation.
2. High-Speed Processing: 64 MHz 32-bit processor delivers fast logic execution and complex algorithm handling for high-speed and precision control.
3. Large Memory Capacity: 1 MB battery-backed RAM provides ample space for large user programs, data logging, and recipe storage.
4. Extensive I/O Support: Manages up to 12,000 discrete and 8,000 analog points in simplex mode, accommodating large and complex automation systems.
5. Dual Communication Ports: Integrated RS-232 and RS-422/485 ports enable seamless connectivity to HMIs, SCADA systems, and other PLCs via multiple protocols.
6. Robust Industrial Design: Compact, single-slot form factor with IP20 protection and wide temperature tolerance ensures reliable operation in harsh industrial environments.
7. Comprehensive Diagnostics: Four LED indicators provide real-time status for power, run, fault, and communication, enabling quick troubleshooting.
8. Online Maintenance: Supports hot-swap replacement of redundant components and automatic data synchronization, allowing maintenance without system shutdown.
9. Security Features: Hardware key switch and software password protection prevent unauthorized program access or modification.

Application Scenarios

• Emergency Shutdown (ESD) Systems: Critical safety systems in oil, gas, and chemical plants for rapid process shutdown during emergencies.
• Fire & Gas (F&G) Systems: Monitoring and control of fire detection, gas leak detection, and suppression systems in high-risk facilities.
• Oil & Gas Production: Control of offshore platforms, onshore processing plants, pipelines, and remote wellheads.
• Power Generation: Boiler control, turbine protection, and balance-of-plant systems in thermal, combined-cycle, and hydroelectric power stations.
• Chemical & Petrochemical Plants: Closed-loop process control, reactor management, and safety interlock systems.
• Water & Wastewater Treatment: High-reliability control for pumping stations, treatment processes, and distribution networks.
• Critical Infrastructure: Automation for data centers, pharmaceutical manufacturing, and other facilities requiring zero downtime.