Description
The part number IC697CPX928 specifies a high-performance Central Processing Unit (CPU) Module for the GE Fanuc / Emerson Series 90-70 Programmable Logic Controller (PLC) system.
Technical Specifications
| Feature | Specification |
| Manufacturer | GE Fanuc / Emerson Automation (Series 90-70) |
| Module Type | Central Processing Unit (CPU) |
| Microprocessor | 96 MHz 80486DX4 (32-bit with floating-point support) |
| Processor Speed | 0.4 microseconds per Boolean function |
| User Memory | 6 MB battery-backed CMOS RAM |
| Non-Volatile Memory | 256 KB user Flash memory (NVRAM) |
| I/O Capacity | Up to 12,000 discrete I/O (any mix) and up to 8,000 analog I/O |
| Communication Ports | 3 independent on-board serial ports (Port 1: RS-232, Ports 2 & 3: RS-485) |
| Slot Requirement | Single-slot module (typically designated for Slot 1 of the rack) |
| Backplane Standard | VME C.1 Standard format |
Product Overview
The IC697CPX928 serves as the core “brain” of the Series 90-70 PLC architecture, designed to perform real-time machine control, complex data processing, and heavy industrial automation tasks. It communicates efficiently with discrete/analog I/O modules and smart option modules over a rack-mounted VME backplane.
Key Features:
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High-Speed Processing: Powered by a 96 MHz 80486DX4 processor supporting hardware floating-point calculations for advanced mathematical operations.
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Generous Memory: Features 6 MB of battery-backed RAM to safely retain user programs, configuration parameters, and register data, supplemented by 256 KB of flash memory.
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Comprehensive Diagnostics: Equipped with seven front-panel LED indicators for immediate system status monitoring, error detection, and troubleshooting.
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Flexible Configuration & Security: Fully software-configurable (no physical jumpers or DIP switches required) with built-in password protection and a physical keyswitch for memory protection.
IC697CPX928
Core Functional Highlights
✅ 96 MHz 32-bit 80486DX4 CPU, built-in floating-point unit for precise PID and process calculation
✅ 6 MB battery-backed RAM + 256 KB flash memory for firmware storage; lithium battery maintains memory when power off
✅ Execution speed: 0.4 μs per Boolean instruction, suitable for medium & large-scale control applications
✅ Maximum I/O capacity: 12,000 mixed discrete/analog points, up to 8,000 analog channels
✅ Three onboard serial ports: 1 × RS232, 2 × RS485; supports SNP protocol for programming and monitoring
✅ Built-in real-time clock for alarm timestamp and event logging
✅ Multiple front-panel LED indicators for power, run, fault and communication status
✅ Supports hot standby redundant architecture to improve system continuous operation reliability
✅ Compatible with full series IC697 rack I/O modules and Genius remote I/O system
Installation & Commissioning Guidance
Separate serial communication cables from high-power cables; use shielded wiring for long-distance RS485 links and implement standardized shielding grounding.
After wiring inspection, power on the rack. Use Logicmaster programming software to upload control application, configure Genius I/O addresses and serial communication parameters.
Carry out offline simulation and online function verification; test redundant master-slave switchover if configured. Verify real-time data transmission to upper monitoring system.
