GE IC693CPU350-BC – Series 90-30 Single-Slot CPU Module (25 MHz, 32KB User Memory)

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Product Introduction:

The IC693CPU350-BC, manufactured by GE Fanuc (General Electric Automation), is a compact, high-reliability central processing unit (CPU) module from the Series 90-30 programmable logic controller (PLC) platform. Designed as the core controller for small-to-medium industrial automation systems, it executes user logic, manages local/remote I/O, and handles serial communication. The suffix -BC denotes a specific firmware/hardware revision with enhanced environmental ruggedness and compatibility with legacy 90-30 I/O bases. It integrates a 25 MHz processor, 32KB battery-backed RAM, and an embedded RS-485 port, serving as a cost-effective, scalable solution for process control, discrete manufacturing, and building automation.

Technical Specifications

Manufacturer: GE Fanuc (General Electric)
Model: IC693CPU350-BC
Series: Series 90-30 PLC System
Processor: 25 MHz 80386EX-based core
User Memory: 32KB battery-backed RAM (logic, data, registers)
I/O Capacity:
- Discrete I/O: Up to 1024 inputs / 1024 outputs
- Analog I/O: Up to 128 input words / 128 output words
- Rack Support: 8 total racks (1 local + 7 remote expansion)
Logic Execution Speed: 0.22 ms per 1K Boolean contacts (typical)
Communication Port: Embedded RS-485 (port 1) – supports SNP, RTU, and GE Fanuc proprietary protocols
Backplane Compatibility: All Series 90-30 I/O bases (10-slot, 6-slot, 4-slot)
Power Consumption: 5VDC @ 450mA (max, backplane)
Battery Backup: CR2032 lithium battery (retains memory during power loss)
Dimensions (W×H×D): 98mm × 127mm × 51mm (single-slot width)
Weight: 0.34kg (0.75lbs)
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, RoHS (industrial safety & EMC compliance)
Protection Class: IP20 (front panel)

Key Features

Compact Single-Slot Design: Minimal footprint for space-constrained control cabinets; easy installation on standard DIN rails or 90-30 baseplates.
Rugged 25 MHz Performance: Balanced speed and reliability for small-to-medium control tasks; 0.22 ms/K logic scan ensures responsive real-time control.
32KB Battery-Backed Memory: Stores user programs, data tables, and system registers; preserves critical data during power outages or system resets.
Embedded RS-485 Communication: Native support for SNP (Series 90 Protocol), Modbus RTU, and GE Fanuc protocols; enables direct connection to HMIs, SCADA, and slave devices without additional modules.
Expansible I/O Architecture: Controls up to 8 racks (1 local + 7 remote) for distributed I/O; seamlessly integrates with 90-30 analog/digital I/O, motion, and specialty modules.