Description

Overview

The IC693CPU331 is a mid-range CPU module for the Series 90‑30 PLC family, delivering reliable processing, integrated memory, and communication capabilities for industrial control systems. Designed for small to medium automation tasks, it supports discrete and analog I/O, program execution, and communication with programming and field devices.

Technical Specifications

• Model/Part Number: IC693CPU331

• Brand: GE Fanuc (Emerson Automation)

• Series: Series 90‑30 PLC

• Module Type: Central Processing Unit (CPU)

• Processor: Intel 80188 microprocessor

• Clock Speed: 10–25 MHz (depending on configuration)

• User Memory: 32 KB battery-backed RAM, 64 KB Flash memory

• Instruction Execution Speed: ~0.22 ms per 1,000 Boolean instructions

• Discrete I/O Capacity: Up to 512 inputs (%I) and 512 outputs (%Q)

• Analog I/O Capacity: 128 input words (%AI), 64 output words (%AQ)

• Communication Ports:

• One RS‑232 (programming/HMI)

• One RS‑485 (multi-drop networks)

• Supported Protocols: SNP, SNP‑X, Modbus RTU, GE proprietary protocols

• Timers/Counters: 680 timers

• Expansion Support: Up to 4 expansion or remote I/O baseplates

• Backplane Current Draw: 350–600 mA @ 5 VDC

• LED Indicators: RUN, STOP, OK, Serial activity

• Environmental Ratings:

• Operating: 0–60 °C (32–140 °F)

• Storage: –40–85 °C

• Humidity: 5–95% non-condensing

• Dimensions: Single-slot module

• Weight: 0.75 lbs

Key Features

• Compact single-slot CPU for mid-range automation applications

• Battery-backed RAM ensures program retention during power outages

• Dual serial ports for flexible connection to programming tools and field networks

• Diagnostic LEDs allow quick assessment of module status

• Supports discrete and analog I/O with optional expansion baseplates

• Durable industrial design suitable for harsh conditions

Applications

• Logic control for small-to-medium PLC systems

• Monitoring and controlling discrete and analog field devices

• Interfaces with HMI/SCADA systems for supervisory control

• Industrial environments requiring reliable, mid-range processing

FAQ

Q: What is the memory capacity of IC693CPU331?
A: 32 KB battery-backed RAM and 64 KB Flash memory.

Q: How many I/O points does this CPU support?
A: Up to 512 discrete inputs, 512 discrete outputs, and 128 analog inputs with 64 analog outputs.

Q: Which communication protocols are supported?
A: SNP, SNP‑X, Modbus RTU, and GE proprietary protocols via RS‑232 and RS‑485.

Q: Can this module be expanded?
A: Yes, up to 4 expansion or remote I/O baseplates are supported.

Specifications

• Dimensions: 33 × 10 × 5 cm
• Brand: General Electric

Advantages

• High reliability in industrial environments
• Supports continuous operation
• Compatible with major PLC/DCS systems