GE Fanuc IC693CPU331-CD is a CPU module for GE Fanuc 90-30 programmable logic controller systems. The product listing includes IC693CPU331-CD alongside related GE Fanuc 90-30 parts IC693BEM331K and IC693PWR321U, indicating a compatible set used in older IC693-based configurations. The IC693CPU331-CD designation identifies this unit as the central processing CPU within GE's IC693 line for 90-30 controllers.
