General Electric IC693CPU351 Series 90-30 CPU Module

The GE Fanuc IC693CPU351 is a single-slot central processing unit module designed for the Series 90-30 Programmable Logic Controller platform. It features an embedded 80386EX processor operating at a speed of 25 MegaHertz to deliver efficient computational execution across localized automation loops. Running on firmware release 9.00 or higher, this unit implements firmware-based software floating-point emulation, ensuring full logical execution of floating-point math blocks without requiring a separate hardware coprocessor. The module provides a total of 240K bytes of user memory alongside comprehensive diagnostic communication handling, featuring three built-in serial ports that natively support SNP, SNPX, and RTU protocols. Engineered to function within high-density plant topologies, it supports advanced firmware sequencing routines such as Sequential Event Recording, automatic user flash RAM configuration retention, and custom modem autodialing for real-time remote telemetry management.

Features

• Single-slot modular form factor designed to fit directly into any standard Series 90-30 CPU baseplate.
• Integrated 25 MHz 80386EX processor delivering a typical scan rate of 0.22 milliseconds per 1K of Boolean logic contacts.
• Firmware-driven floating-point emulation supporting standardized industrial math function blocks.
• Configurable memory mapping supporting up to 16K of %R register memory, 8K of %AI analog input memory, and 8K of %AQ analog output memory via DOS programming software.
• Built-in Sequential Event Recorder function block capable of logging up to 1024 samples of 32 individual discrete bit references.
• Three independent embedded serial communication ports including dedicated front-panel interfaces for point-to-point or multidrop configurations.
• Advanced keyswitch logic control supporting transitions into configured STOP IO SCAN or STOP NO/IO states regardless of the initial PLC mode.

Applications

• Centralized processing cores for multi-baseplate industrial Series 90-30 PLC automation systems.
• Remote site telemetry monitoring installations using custom modem interfaces and automated pager enunciation tracking.
• High-speed discrete manufacturing lines requiring precise execution tracking via Sequential Event Recording.
• Multi-drop serial networks deploying localized data synchronization over SNP, SNPX, or RTU protocols.

Ordering Information

Technical Specifications

Connections and Interfaces

Installation Guidelines

To secure structural mounting integrity and safeguard module firmware logic against volatile transient corruption across the backplane, execute the configuration and installation cycle according to precise engineering rules.