The GE IC697CPU788 is a high-reliability triple modular redundancy (TMR) CPU module designed for the GE Fanuc Series 90-70 PLC system. It is engineered for mission-critical industrial applications where continuous operation, fault tolerance, and emergency shutdown (ESD) functionality are required.
Unlike standard CPUs, the IC697CPU788 is optimized for redundant architectures, making it ideal for safety-related control systems in industries such as oil & gas, petrochemical processing, and large-scale energy infrastructure. It delivers stable real-time processing with built-in support for system redundancy and high-integrity control logic.
Technical Specifications
The IC697CPU788 is designed for high-availability control environments with redundancy and safety integration.
| Parameter | Specification |
|---|---|
| Model | IC697CPU788 |
| Product Type | PLC CPU Module |
| Series | GE Fanuc Series 90-70 |
| Processor | Intel 80386DX |
| Clock Speed | 16 MHz |
| Architecture | 32-bit CPU with floating-point support |
| Memory | Up to 512 KB CMOS RAM (battery-backed) |
| I/O Capacity | 352 discrete I/O points (any mix) |
| Analog Capacity | Up to 8,000 analog I/O (simplex mode) |
| Redundancy | Triple Modular Redundancy (TMR) support |
| Execution Speed | ~0.4 µs per Boolean instruction |
| Communication | RS-422 / RS-485 serial port |
| Ethernet Support | Via external communication modules |
| Programming | Logicmaster / MS-DOS / Windows-based tools |
| Function | Safety + redundant PLC control processing |
| Slot Requirement | Single-slot rack module |
| Power Consumption | Approx. 1.6 A @ 5 V DC |
This module is specifically designed for high-integrity control systems requiring fault-tolerant architecture and emergency shutdown capability.
Physical Dimensions & Weight
| Parameter | Value |
|---|---|
| Dimensions (L × W × H) | ≈ 263 mm × 58 mm × 28 mm |
| Weight | ≈ 0.5 kg – 4.3 kg (depending on configuration) |
Its standard single-slot design ensures compatibility with GE Series 90-70 racks such as CHS750, CHS790, and CHS791 systems.
Recommended Related Models
IC697CPU788 is commonly used with:
- GE IC697CHS790 PLC Rack
- GE IC697PWR711 Power Supply Module
- GE IC697BEM713 Bus Transmitter Module
- GE IC697BEM731 Genius Bus Controller
- GE IC697RCM711 Redundancy Communication Module
- GE IC697CMM741 / CMM742 Ethernet Modules
These components form a complete redundant and safety-oriented GE 90-70 automation system architecture.
Popular GE Series 90-70 CPU Modules
- IC697CPU731 – Entry-level CPU
- IC697CPU732 – Standard control CPU
- IC697CPU771 – Expandable CPU
- IC697CPU772 – Floating-point high-performance CPU
- IC697CPU780 – Hot standby redundant CPU
- IC697CPU788 – Triple redundancy safety CPU
These CPUs are widely used in industrial systems requiring different levels of performance, scalability, and safety integrity.
