GE Fanuc IC697CPX928 Series 90-70 CPU Module 96MHz 6MB RAM

GE Fanuc IC697CPX928 Series 90-70 CPU Module Overview

The GE Fanuc IC697CPX928 drives high-performance automation within the Series 90-70 PLC system platform.

This central processing unit executes complex control algorithms with remarkable processing speeds.

Engineers utilize this module to manage intensive discrete logic and high-density analog operations.

The unit features zero-jumper hardware setup, simplifying installation and maintenance tasks.

System designers configure all operating parameters completely through software interfaces.

Structured Technical Specifications

1. Core Processing & System Architecture

• Brand: GE Fanuc
• Series: Series 90-70
• Part Number: IC697CPX928
• Microprocessor: 80486DX4 32-bit architecture
• Clock Speed: 96 MHz system clock
• Execution Speed: 0.4 µs per Boolean function
• Floating-Point Math: Native 32-bit floating-point support
• Rack Slot Requirement: Single slot in Series 90-70 rack

2. Memory Specifications

• Volatile Memory (RAM): 6MB battery-backed user memory
• Non-Volatile Memory: 256KB flash memory for user program and firmware
• Memory Backup: Lithium Battery Pack (Catalog: IC697ACC701)

3. I/O Capacity & Signal Processing

• Discrete I/O Capacity: Up to 12K inputs/outputs (any combination)
• Analog I/O Capacity: Up to 8K analog inputs/outputs
• Resolution & Linearity: Defined by connected Series 90-70 analog I/O modules
• Frequency Response: Deterministic task execution tied to 0.4 µs scan rate

4. Communication Interfaces

• RS-232 Serial Port: 1 dedicated port for direct programming/debugging
• RS-485 Serial Ports: 2 isolated serial ports for multi-drop networks
• Factory Reset Port: 1 hardware service port
• Network Support: Ethernet TCP/IP via optional Series 90-70 communication modules

5. Electrical & Environmental Tolerances

• Operating Voltage: 5 VDC from rack backplane
• Current Consumption: 3.1 Amps nominal
• Standard Operating Temperature: 32°F to 122°F (0°C to 50°C) without forced air
• Extended Operating Temperature: 32°F to 140°F (0°C to 60°C) with 70 CFM forced air
• Noise Immunity & Immunity: High industrial EMC rejection for heavy industrial environments

Module Compatibility & System Integration

The IC697CPX928 integrates seamlessly with the full Series 90-70 ecosystem.

It supports Ethernet Interface modules for modern factory network connectivity.

It interfaces directly with Programmable and Alphanumeric Coprocessor modules.

It controls high-speed fieldbus systems via Bus Controller and I/O Link Interface units.

It accepts the complete line of GE Fanuc discrete and analog expansion I/O boards.

Installation, Diagnostics, and Maintenance

Installation requires sliding the module into a single slot on a Series 90-70 rack.

Ensure adequate air circulation or install a 70 CFM rack fan assembly for elevated temperatures.

Hardware configuration requires no physical DIP switches or manual jumpers.

Engineers program the unit using MS-DOS or Windows-based software tools over SNP or Ethernet.

Seven diagnostic LEDs on the front panel display real-time module operational states.

The primary battery maintains volatile program memory during complete system power outages.

Typical Application Scenarios

Large-scale water treatment facility controlling distributed pumping networks.

Turbine control systems requiring rapid floating-point math processing.

Chemical processing plants needing high-density analog sensor monitoring.

Automotive assembly lines coordinating complex multi-axis motion coprocessors.

Certifications, Packaging, & Delivery Terms

Global PLC Spare HUB's Insight & Field Experience

In high-demand industrial environments, the IC697CPX928 remains a workhorse for control engineers.

Our field engineers frequently observe this CPU running continuous processing lines without interruptions.

During a field retrofit, a team replaced an older unit with the IC697CPX928.

The 96MHz 80486DX4 processor immediately reduced total scan time by over 40 percent.

This increase in performance resolved intermittent timing errors on high-speed encoder inputs.

We recommend replacing the IC697ACC701 lithium battery during scheduled annual plant turnarounds.

This routine preventative step protects critical user logic stored in volatile RAM.

Selection & Buyer Guide

Verify your total system I/O count before purchasing the IC697CPX928.

Select this CPU if your application requires up to 12K mixed I/O points.

Ensure your enclosure supports forced air cooling if ambient temperatures exceed 122°F.

Confirm that your programming environment supports SNP serial communication or TCP/IP Ethernet options.

Frequently Asked Questions (FAQ)

Question: What is the main processing chip inside the IC697CPX928 CPU?

Answer: This module utilizes a 32-bit 80486DX4 microprocessor running at 96 MHz.

Question: How do I set the hardware communications parameters on this CPU?

Answer: This CPU contains no DIP switches or jumpers. You configure all settings in software.

Question: What backup battery part number works with this module?

Answer: Use the GE Fanuc IC697ACC701 lithium battery assembly to retain RAM memory.

Question: Field Experience: Why does my CPU lose program memory after a power cycle?

Answer: Check the IC697ACC701 battery voltage. A depleted lithium battery fails to sustain volatile memory during power outages. Alternatively, save your program logic directly into the 256KB non-volatile flash memory.

Question: Field Experience: How can I prevent the CPU from overheating inside sealed cabinets?

Answer: Install a 70 CFM forced-air cooling fan assembly. Without active airflow, operating temperature limits drop from 140°F down to 122°F.

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