The GE IC697CPU781 is a high-performance single-slot PLC CPU module designed for the GE Fanuc Series 90-70 automation platform. It is engineered for large-scale industrial control, process automation, and high-density I/O applications, offering strong processing speed, flexible memory expansion, and reliable deterministic execution.
This CPU is widely used in manufacturing systems, energy facilities, water treatment plants, and legacy SCADA architectures, where stable long-term operation and system scalability are essential. It sits in the upper-mid performance range of the Series 90-70 CPU family, making it suitable for complex control tasks with high I/O demands.
Technical Specifications
The IC697CPU781 provides powerful control capability with expanded memory and fast scan performance.
| Parameter | Specification |
|---|---|
| Model | IC697CPU781 |
| Product Type | PLC CPU Module |
| Series | GE Fanuc Series 90-70 |
| Processor | 16 MHz 80386 / 32-bit architecture |
| Boolean Execution | ~0.4 µs per instruction |
| Memory | Up to 512 KB CMOS + expansion support |
| I/O Capacity | Up to 12,000 discrete I/O (any mix) |
| Analog Capacity | Up to 8,000 analog I/O |
| Communication | RS-422 / RS-485 serial port |
| Ethernet Support | Via external Ethernet modules |
| Backplane | VME-based Series 90-70 architecture |
| Programming | Logicmaster / Proficy Machine Edition |
| Function | Central PLC processing + system control |
| Slot Requirement | Single-slot rack module |
The module supports large-scale I/O integration and optional memory expansion boards for complex automation logic execution.
Physical Dimensions & Weight
| Parameter | Value |
|---|---|
| Dimensions (L × W × H) | ≈ 292 mm × 44 mm × 229 mm |
| Weight | ≈ 0.8 kg – 1.0 kg |
Its standard Series 90-70 single-slot form factor ensures compatibility with racks such as CHS750, CHS790, and CHS791.
Recommended Related Models
IC697CPU781 is commonly paired with:
- GE IC697CHS790 PLC Rack
- GE IC697PWR711 Power Supply Module
- GE IC697BEM713 Bus Transmitter Module
- GE IC697BEM731 Genius Bus Controller
- GE IC697CMM741 / CMM742 Ethernet Modules
- GE IC697RCM711 Redundancy Communication Module
These components build a scalable and high-reliability GE 90-70 automation system architecture.
Popular GE Series 90-70 CPU Modules
- IC697CPU731 – Entry-level CPU (12 MHz)
- IC697CPU732 – Standard control CPU
- IC697CPU771 – Expandable mid-range CPU
- IC697CPU772 – High-performance floating-point CPU
- IC697CPU780 – Redundant hot standby CPU
- IC697CPU781 – High-I/O expandable CPU
These CPUs are widely used in long-life industrial systems requiring stable operation and flexible expansion capability.
