IC693331LT-EE GE Fanuc Series 90-30 Processor Unit

Description

Product Model: IC693331LT-EE
Product Brand: GE Intelligent Platforms (formerly GE Fanuc)
Product Series: Series 90-30
Product Features:

• 10 MHz 80188-based CPU module designed for Series 90-30 controllers.
• Supports up to 512 discrete inputs and 512 discrete outputs plus analog I/O capacity in suitable configuration.
• Single slot (slot 1) installation in a baseplate; shares the same footprint as other Series 90-30 CPUs.
• Field-proven legacy automation hardware with broad third-party parts support and known system integration paths.

Product Role & System Fit

In an industrial control system built around the GE Series 90-30 architecture, the IC693331LT-EE occupies a central role as the CPU—or core logic module—that drives the I/O modules, executes control logic, and interfaces with higher-level supervisory systems. Unlike I/O cards which simply manage signals, this CPU module handles program execution, data table management, timing, diagnostics and the serial communications link back to programmers or networks.

This CPU is designed to mount in slot 1 of a Series 90-30 baseplate (typically a 10-slot or remote baseplate configuration), and from there it orchestrates up to 49 I/O slots (or more if remote racks are used) as defined for the Model 331 class. Within that system it becomes the heart of the automated process: your control logic lives here, the scans of discrete and analog I/O are managed, and interactions such as fault detection and system monitoring are centralised.

Because your application might involve machine control, material handling, process lines or retrofit installations, the IC693331LT-EE is a fit when you already have a Series 90-30 I/O rack layout and want to maintain that investment. It fits seamlessly into the backplane architecture, uses the same programming tools as other Series 90-30 modules, and allows you to leverage existing wiring and baseplates. For example, if you have a remote baseplate connected via expansion cabling 50 ft from the main rack, the CPU module remains unchanged—just the I/O layout and wiring need adaptation.

Crucially, this CPU also supports the serial port for host communication (SNP slave / SNP-X slave) via the power supply connector. In practice that means you can hook up a handheld programmer or connect to a PC for program uploads and monitoring. From an integrator’s perspective: you install the CPU, configure the baseplate, wire your I/O, download your logic, and the module takes over. It’s time-tested, well-documented and widely supported—which makes it a safe bet in environments where machine uptime matters.

Applications & Industry Context

When you take a scenario like a beverage bottling line, a mining conveyor belt system or a refinery skid, you often need a robust PLC CPU that can handle moderate I/O counts, provide deterministic scan times and integrate with existing infrastructure. Here the IC693331LT-EE shines. While it may not be the latest lightning-fast CPU available today, its heritage in the Series 90-30 ecosystem means it’s proven in harsh environments, well understood by maintenance personnel and compatible with a large installed base of I/O modules.

For example, in a material-handling facility you might have a Series 90-30 rack controlling motor starters, photo-eyes, barcode readers and a network of remote I/O racks. By employing the IC693331LT-EE at the core, you ensure your packaged line controllers stay consistent with the plant standard, maintenance staff remain familiar with the system, and spare parts logistics stay manageable.

In utilities or process industries (water treatment, wastewater, chemical dosing), the module works nicely when control logic is moderate in size (say under 16 kB of user program memory) and you have a mix of discrete and analog I/O. The datasheet shows user memory up to 16 k bytes for the Model 331 class.  That is sufficient for many pump control, valve sequencing and instrumentation tasks. Using it helps retain wiring infrastructure, simplifies operator training and reduces risk of introducing completely new platforms in retrofit scenarios.

In the machine-building sector, if you deliver equipment using Series 90-30 PLCs you may find customers still want continuity and support for those systems. Choosing the IC693331LT-EE means you are delivering a CPU they recognise. In all of these contexts, the key challenge is ensuring you design with the limitations (memory size, speed) in mind—but the reward is system compatibility, lower field-support risk and easier spare-parts management.