GE IC693331-CD GE Intelligent Platforms Control System CPU Unit

Description

Product Model: GE IC693331-CD
Product Brand: GE Fanuc / GE Intelligent Platforms (now part of Emerson Automation Solutions)
Product Series: GE Series 90-30 Programmable Logic Controller CPUs

Product Features:
• Core CPU module for Series 90-30 PLC systems with 10 MHz processing performance
• Typical 16 KB user memory for logic execution and data handling
• Supports up to hundreds of I/O points via baseplate and expansion racks
• Designed for industrial automation control, scaling from simple to complex applications

Technical Specifications

Product Role & System Fit

In any programmable logic controller (PLC) system, the CPU (central processing unit) is the heart of the automation logic. The GE IC693331-CD fulfills this role within the GE Fanuc Series 90-30 platform — a widely deployed control architecture in factories, utilities, and process systems. This module executes user-written control programs, coordinates I/O scanning, manages communication with peripheral modules, and maintains system status for diagnostics and safety enforcement. eBay

Unlike discrete input or analog signal modules that simply interface sensors and actuators, the GE IC693331-CD provides computation and decision-making. It interprets ladder logic and structured task definitions stored in user memory to generate output commands that drive actuators, coordinate sequences, and regulate processes. It does so while handling internal housekeeping functions like timers, counters, flag memory, and communication with external devices or human-machine interfaces (HMIs).

Integration within a Series 90-30 rack environment is straightforward: the module occupies a dedicated CPU slot in the baseplate and draws logic power from the rack’s backplane. In this configuration, it shares data with I/O modules, special communication modules, and bus controllers that may serve distributed subsystems. Featuring a direct interface with memory and I/O space registers predefined by GE’s architecture, the CPU integrates into automation software tools that allow editing, debugging, and downloading program logic.

The -CD suffix is a revision identifier indicating internal firmware or hardware revision variants of the core IC693CPU331 module — a common naming convention in GE Fanuc product lines where the base number (IC693331) designates the processor and the letter code reflects manufacturing or revision status. Despite suffix differences, functionally the module serves the same CPU role within Series 90-30 systems.

For engineers building or maintaining Series 90-30 installations, the GE IC693331-CD fills the role of a mid-range controller with balanced memory and processing power — suitable for systems requiring up to several thousand I/O references, complex sequence steps, and various data handling capabilities.