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The GE IC693CPU374 is a high-performance CPU module for GE Fanuc’s Series 90-30 programmable logic controller (PLC), engineered to deliver robust control capabilities in demanding industrial automation environments. As part of the renowned Series 90-30 platform, this 486-based processor executes complex logic at speeds up to 10 ms/K for 1K instructions, supporting real-time control for manufacturing, energy, and infrastructure applications. The GE IC693CPU374 features 16K words of battery-backed user memory (expandable to 32K via memory cartridges) and integrates dual RS-232/RS-485 ports for seamless connectivity with HMIs, SCADA systems, and legacy devices. Designed for reliability in harsh conditions, it operates across -40°C to +70°C with 95% non-condensing humidity tolerance, making it ideal for unregulated environments like water treatment plants or material handling facilities.
Positioned as a cost-effective solution for mid-range control tasks, the GE IC693CPU374 supports up to 512 discrete I/O points and includes built-in PID loop control for process applications. Its modular architecture allows direct integration with Series 90-30 I/O modules like the IC693ALG392 analog card, while firmware compatibility with VersaPro™ and Proficy Machine Edition software simplifies programming and diagnostics. For facilities modernizing legacy GE systems, the IC693CPU374 balances processing power with backward compatibility, extending the lifecycle of existing automation investments.
GE IC693CPU374
Technical Specifications
| Parameter Name | Parameter Value |
| Product Model | GE IC693CPU374 |
| Manufacturer | GE Fanuc (Emerson) |
| Product Type | PLC Central Processing Unit |
| Processor | 32-bit 486-based |
| Memory Capacity | 16K words (RAM), expandable to 32K |
| Scan Time | 10 ms/K instructions |
| Digital I/O Capacity | 512 points |
| Analog I/O Support | Up to 32 channels |
| Communication Ports | 2x (RS-232/RS-485 configurable) |
| Programming Languages | Ladder Logic, Function Block Diagram |
| Backup Power | Supercapacitor + lithium battery (IC693ACC302) |
| Operating Temperature | -40°C to +70°C |
| Power Consumption | 5V DC @ 1.1A, 24V DC @ 80mA |
| Certifications | UL 508, CE, cULus |
Main Features and Advantages
Deterministic control performance: Executes Boolean logic in 0.37 μs per instruction and handles 64 PID loops simultaneously. The GE IC693CPU374’s dual-port memory architecture enables background communications without scan cycle interruption.
Ruggedized reliability: Conformal-coated PCB withstands corrosive atmospheres in wastewater plants. Vibration resistance (5g @ 10-500Hz) ensures stable operation on moving machinery.
Legacy integration: Direct replacement for older IC693CPU351 with 3× faster processing. Hot-swappable memory cartridges (IC693MEM321) enable program updates without downtime.
Advanced diagnostics: Real-time clock for event time-stamping and onboard LED status indicators (RUN, COMM, FAULT). Password protection prevents unauthorized access to control logic.
Application Field
The GE IC693CPU374 excels in:
Water/Wastewater: Controls pump stations and chemical dosing with PID loop precision
Manufacturing: Sequences conveyor lines and robotic cells in automotive assembly
Energy Management: Monitors HVAC and power distribution in facilities
Material Handling: Manages palletizing systems and AS/RS warehouses
Food & Beverage: Regulates filling machines and pasteurization processes
GE IC693CPU374
Related Products
IC693ALG392: Analog input module for temperature/pressure signals
IC693PWR330: 24V DC power supply for redundant configurations
IC693ACC302: Battery backup module for memory retention
IC693CMM321: Serial communication module for Profibus/Modbus
IC693MDL645: 32-point digital input module
IC693CPU364: Upgraded CPU with Ethernet support
