Description
1. Product Overview
Full Part Number: IC693CPU364-FK
Product Line: GE Fanuc Series 90-30 mid-range PLC central processing unit, manufactured in the USA. The suffix FK stands for customized factory firmware version, which is fully hardware interchangeable with standard IC693CPU364.This single-slot compact CPU adopts 32-bit 80386EX processor with integrated native 10BASE-T Ethernet port. It serves as the core controller for Series 90-30 PLC systems, featuring large program memory, high-speed logic execution, multi-rack expansion and multi-protocol networking.
2. Hardware Structure & Functional Units
2.1 Core Calculation & Storage Unit
25MHz 80386EX 32-bit industrial processor with total 240KB configurable user memory, assignable to program area, register %R, analog input %AI and analog output %AQ. It adopts dual storage of non-volatile Flash memory and battery-backed SRAM. The onboard lithium battery retains programs, variables and RTC clock after power loss. Firmware-based floating-point arithmetic supports complex process algorithms, with over 2000 built-in timers and counters, interrupt subroutines and overlay program functions.
2.2 Front Panel Communication Interfaces
- 10BASE-T RJ45 Ethernet Port: Supports TCP/IP and Modbus TCP for connection with configuration software, HMI and MES. Equipped with a replaceable 1A slow-blow fuse for overcurrent protection; compatible with AAUI external transceiver.
- RS232 Serial Port: Led out via PLC power supply module, default SNP/SNPX slave mode for program download and on-site debugging. CMM/PCM expansion modules are required for Modbus RTU master/slave and other bus protocols.
- Backplane Bus Gold Finger: Inserts into 90-30 baseplate to communicate with local I/O and function modules.
2.3 Multi-Rack I/O Expansion Bus Unit
The main baseplate can connect up to 7 additional expansion baseplates (8 racks in total). Remote I/O stations can be extended via Genius, Profibus DP and other bus modules. Max I/O capacity: 2048 discrete inputs (%I), 2048 discrete outputs (%Q), 4096 internal relays (%M). Analog register space is expandable in 128-word increments.
2.4 Status Indication & Self-Diagnosis Unit
LED indicators display power status, running heartbeat, Ethernet link and fault alarms. Power-on self-test verifies memory, bus and communication circuits. Fault codes are stored in system status registers (%S), which can be read via programming software to pinpoint program errors, module loss and bus disconnection quickly.
2.5 Power Supply & Protection Unit
Powered by +5VDC backplane with typical current draw 1.1~1.51A. Onboard ESD, reverse polarity and surge suppression circuits, with conformal coating on PCB. Tool-free clip-on mounting design with no wearable mechanical parts for long-term cabinet operation.
3. Detailed Technical Specifications
3.1 Performance & Memory
- Processor: 80386EX 32-bit, 25MHz
- Logic Scan Speed: 0.22ms per 1K Boolean contacts
- Total User Memory: 240KB configurable
- Storage: Flash firmware + battery-backed RAM
- Supported Languages: LD, FBD, ST, IL, SFC
- Max Baseplates: 1 main + 7 expansion (8 total)
- Discrete I/O Limit: 2048 Input / 2048 Output
3.2 Communication
- Onboard Ethernet: 10BASE-T RJ45, Modbus TCP / SNP TCP
- Serial: RS232 SNP/SNPX slave (program download only)
- Expandable Buses: Profibus DP, Genius, DeviceNet, Modbus RTU via CMM/PCM modules
3. Electrical Parameters
- Input Power: +5VDC from rack backplane
- Typical Current: 1.1~1.51A
- Hot Swap: Hot plugging is strictly prohibited
- Data Retention: ≥90 days with factory lithium battery
3. Environmental & Mechanical
- Operating Temp: 0℃ ~ +60℃
- Storage Temp: -20℃ ~ +70℃
- Humidity: 5%~95%RH non-condensing, no corrosive gas
- Ingress Protection: IP20 (cabinet installation only)
- Vibration Compliance: IEC 60068-2-6
- Dimensions: 32 × 127 × 133mm; Weight: ~300g
4. Key Product Features
- Built-in Ethernet eliminates extra communication modules to save rack slots and wiring cost.
- Freely partitionable large memory supports large-scale sequence programs and recipe data storage.
- Dual local & remote I/O expansion adapts to centralized and distributed control modes for large production lines and pump stations.
- Multi-layer hardware self-diagnosis records fault logs to accelerate on-site troubleshooting and reduce downtime.
- The FK firmware suffix only differs in factory preset version, fully pin-to-pin compatible with standard IC693CPU364 for direct drop-in replacement.
- Conformal coated wide-temperature PCB design resists dust, humidity and electromagnetic interference for 24/7 continuous industrial operation.
5. Application Fields
Automation assembly lines, packaging equipment, injection molding machine control; municipal wastewater & flue gas denitrification systems; thermal power auxiliary equipment and coal conveying interlock control; mineral processing and belt conveyor automation; legacy GE 90-30 PLC system renovation, Ethernet networking upgrade and preventive spare part stocking.
