GE IC693CPU351-HT – Series 90-30 High-Performance CPU Module

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Product Introduction:

The IC693CPU351-HT is a high-performance single-slot CPU module manufactured by GE Fanuc (Emerson Automation) for the GE Series 90-30 PLC system. Designed for complex industrial automation applications requiring fast processing, large memory, and extensive I/O support, it integrates an Intel 80386EX 25MHz processor, 240KB user memory, and three serial communication ports. The -HT suffix denotes a specific hardware revision (Version 9.11) optimized for enhanced reliability and compatibility with legacy and modern 90-30 system components. It serves as the central control unit for coordinating logic, motion, and process control in mid-to-large-scale industrial systems.

Technical Specifications

Manufacturer: GE Fanuc (Emerson Automation)
Model: IC693CPU351-HT (alternate: IC693CPU351HT)
Series: GE Series 90-30 PLC System
Module Type: Single-slot CPU Module
Processor: Intel 80386EX (32-bit), 25MHz clock speed
User Memory: 240KB (Flash/RAM, battery-backed)
Scan Rate: 0.3ms per 1K Boolean logic (typical)
Discrete I/O Capacity: 2048 inputs (%I) / 2048 outputs (%Q)
Analog I/O Capacity: Up to 32,640 input words (%AI) / 32,640 output words (%AQ)
Serial Communication Ports: 3 ports (Port 0: power connector; Ports 1/2: RS-232/485)
Supported Protocols: SNP/SNP-X (master/slave), Modbus RTU (master/slave)
Power Supply: 5VDC (backplane), 890mA maximum current draw
Battery Backup: Lithium battery for real-time clock (RTC) and memory retention
Dimensions (W×H×D): 38mm × 127mm × 127mm (1.5” × 5.0” × 5.0”)
Weight: 0.3kg (10.4oz)
Operating Temperature: 0°C to +60°C (32°F to 140°F)
Storage Temperature: -40°C to +70°C (-40°F to 158°F)
Relative Humidity: 5%–95% (non-condensing)
Certifications: CE, UL, CSA (industrial safety and EMC compliance)
Mounting: DIN rail or Series 90-30 baseplate (5-slot/10-slot)

Key Features
Powerful 32-bit Processing: Intel 80386EX 25MHz processor delivers fast execution of complex logic, floating-point math, and motion control algorithms.
Large User Memory: 240KB battery-backed Flash/RAM supports extensive program code, data logging, and recipe storage.
High I/O Scalability: Controls up to 4096 discrete points and 65,280 analog words, suitable for large-scale process and manufacturing lines.
Multi-Port Communication: Three serial ports enable simultaneous connection to HMIs, SCADA systems, and Modbus/SNP-X slave devices.
Real-Time Clock & Data Retention: Battery-backed RTC and memory preserve critical data and time-stamped events during power outages.
Advanced Diagnostic Tools: LED indicators (OK, RUN, COMM) and built-in fault logging simplify troubleshooting and system monitoring.
Key Switch Security: Physical key switch enables run/stop mode control and protects unauthorized program access.
Hot-Swappable & Compact: Single-slot design supports hot swapping for replacement without system shutdown; fits standard 90-30 baseplates.