Dual-Processor Redundancy for Critical Control
The GE IC697CGR935 is a high-performance hot-standby CPU module for the Series 90-70 programmable logic controller (PLC) platform. This module features two processors on a single board: the active CPU executes logic while the standby CPU remains synchronized . The IC697CGR935 delivers seamless automatic transfer of control if the primary processor fails . It supports up to 12K bits of discrete I/O and 8K words of analog I/O . The integral Ethernet interface provides high-speed data exchange with host computers and supervisory systems .
Processor Performance and Memory Capacity
Each of the two processors operates at a clock speed of 96 MHz and contains 1 Mbyte of battery-backed CMOS RAM . The battery-backed memory maintains the application logic, configuration, and reference tables during power outages . The IC697CGR935 also includes a 2 Mbyte flash memory for non-volatile storage of firmware and programs . A lithium battery provides backup for up to 6 months of RAM retention . The module supports up to 512 I/O points per rack and has a maximum system size of 8 racks .
Technical Specifications
| Parameter | Specification |
|---|---|
| Model Number | IC697CGR935 |
| Manufacturer | GE Fanuc / Emerson |
| Product Type | Hot-Standby Redundant CPU Module |
| Processor Speed | 96 MHz per CPU |
| RAM Memory | 1 Mbyte battery-backed CMOS |
| Flash Memory | 2 Mbyte non-volatile |
| Battery Backup | Lithium (up to 6 months retention) |
| Discrete I/O Capacity | 12K bits max |
| Analog I/O Capacity | 8K words max |
| Racks per System | 8 racks max |
| I/O Points per Rack | 512 max |
| Ethernet Ports | 1 (10BaseT/100BaseTX, RJ45) |
| Serial Ports | 2 (RS-232/422/485 configurable) |
| Floating Point | Hardware supported |
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | -40°C to 85°C |
| Humidity | 5% to 95%, non-condensing |
| Certifications | UL, CSA, CE |
| Country of Origin | USA |
Redundancy and System Integration
The IC697CGR935 uses a fiber-optic or Ethernet link for high-speed synchronization between the two CPUs . This ensures bumpless transfer and data integrity during switchover events . Each CPU utilizes the Genius I/O bus for communication with remote I/O drops . The module supports a wide range of programming languages including ladder logic, C, and structured text . Its hot-standby capability makes this CPU ideal for mission-critical applications such as power plants, chemical processing, water treatment, and pipeline control .
Details
| Weight | 0.25 kg |
|---|---|
| Dimensions | 110 × 70 × 30 mm |
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