The GE Fanuc IC693CPU331 is a single-slot CPU module for the Series 90-30 PLC platform. It functions as the central controller for logic execution, I/O processing, and system coordination in small to medium-scale automation systems.
Powered by an Intel 80188 processor running at 10 MHz, the IC693CPU331 delivers reliable scan performance and deterministic control. With 16 KB of user program memory and support for both local and remote expansion racks, this CPU is well suited for legacy systems requiring stable long-term operation.
The CPU installs directly into a Series 90-30 baseplate and uses the serial port integrated into the PLC power supply for programming and diagnostics via SNP and SNP-X protocols.
| Parameter | Specification |
|---|---|
| Manufacturer | GE Fanuc (Emerson) |
| Product Line | Series 90-30 |
| Model / Part Number | IC693CPU331 |
| Module Type | CPU Module |
| Slot Requirement | Single slot |
| Processor | Intel 80188 |
| Processor Speed | 10 MHz |
| User Program Memory | 16 KB RAM (battery-backed) |
| Typical Scan Rate | 0.4 ms per 1K Boolean logic |
| Built-in Serial Ports | 1 (via power supply connector) |
| Supported Protocols | SNP, SNP-X (slave) |
| Maximum Discrete Inputs | 512 points |
| Maximum Discrete Outputs | 512 points |
| Analog Inputs Capacity | 128 words |
| Analog Outputs Capacity | 64 words |
| Timers / Counters | 680 |
| Expansion Baseplates | Up to 4 local expansion baseplates |
| Remote I/O Support | Up to 4 remote baseplates |
| Operating Temperature | 0°C to +60°C |
| Storage Temperature | –40°C to +85°C |
| Weight | 0.75–0.99 lbs (0.34–0.45 kg) |
| Mounting | Series 90-30 rack backplane |
| Product Status | Discontinued by Manufacturer |
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