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GE IC697CPM790｜PLC CPU Module｜
Processor and Performance
CPU: 64 MHz Intel 80486DX2
Architecture: 32-bit processing with hardware floating-point calculation support
Execution performance:
Boolean instructions: 0.4 μs per step
Native floating-point operation support
Memory
Battery-backed RAM: 1 MB
Up to 512 KB available for Ladder Diagram programs
Flash memory: Stores operating system firmware
I/O Capacity
Discrete I/O:
Up to 12K points (simplex configuration)
Up to 2048 voted discrete I/O
Analog I/O:
Up to 8K points (simplex configuration)
Redundancy and Reliability
Redundancy type: Triple Modular Redundancy (TMR)
Architecture: GMR (General Modular Redundancy)
Designed to maintain uninterrupted operation even in the event of single-module failures
Communication
Serial interface:
1 × RS-422/485 port
Supports multi-controller / multi-machine interconnection
Installation and Power
Backplane: Series 90-70, single-slot installation
5 V bus current consumption: 3.3 A (rated)
Environmental Specifications
Cooling requirements:
With forced air cooling (70 CFM): 0 to 60 °C
Without forced air cooling: 0 to 40 °C
Clock accuracy:
Real-time clock: ≤ 3.5 s/day
Internal timing accuracy: ≤ 0.01%
Physical Characteristics
Dimensions (W × H × D): approximately 210 × 230 × 50 mm
Weight: approximately 0.6 kg
Core Functions and Applications
High Reliability and Fault Tolerance
The TMR architecture provides continuous operation and fault masking, making the system suitable for high-risk and safety-critical applications, including:
Emergency Shutdown Systems (ESD)
Fire and Gas (F&G) monitoring
Critical process control systems
Flexible Programming and Maintenance
Supports Windows and MS-DOS programming in a single-slot configuration
Firmware upgrades via serial port
Four LED indicators provide real-time status and fault diagnostics
Typical Industries
Designed for process industries with stringent availability and safety requirements, such as:
Oil and gas
Chemical and petrochemical
Power generation
Metallurgy and heavy industry
GE IC697CPM790｜PLC CPU Module｜
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