GE IC693CPU363-CH Central Processing Unit Module

Technical Specifications

• Manufacturer: GE Fanuc / Emerson

• Product Type: Central Processing Unit Module

• Series: Series 90-30 PLC

• Processor Type: 80386EX, 32-bit

• Processor Speed: 25 MHz

• User Memory: 240 KB total

• Typical Scan Rate: 0.22 milliseconds per 1K of logic

• I/O Points: 2048 discrete inputs and 2048 discrete outputs

• Discrete Global Memory: 1280 bits

• Internal Coils: 4096 bits

• Temporary Coils: 256 bits

• System Status Bits: 128 bits

• Register Memory: Configurable up to 16,384 words (Logicmaster) or 32,640 words (Control v2.2)

• Power Requirement: +5 V DC, 890 mA

• Battery Backup: Lithium battery for clock and RAM retention

• Operating Temperature: 0°C to 60°C

• Floating Point Math: Supported

• Mounting Slot: Occupies CPU slot on baseplate

Communication Ports

• Total Ports: 3

• Port 1: RS-232 on RJ45 connector; supports SNP or SNPX slave

• Port 2: RS-232/RS-485 on 15-pin Sub-D connector; supports SNP/SNPX master and slave, RTU slave; compatible with RTU master and CCM modules

• Port 3: RS-485 on power connector; supports SNP slave

• Protocol Support: SNP, SNPX, Modbus RTU, CCM

• LAN Support: FIP, Profibus, GBC, GCM, GCM+ modules; multidrop supported

Functional Features

• High-Speed Processing: Equipped with an 80386EX 32-bit processor operating at 25 MHz, delivering a scan rate of 0.22 milliseconds per 1K of logic for responsive control .

• Substantial Program Memory: Provides 240 KB of user memory, enabling storage of complex control programs with floating point math support .

• Three Serial Communication Ports: Multiple ports allow simultaneous connections to programming software, HMI panels, and field devices using SNP, Modbus RTU, or CCM protocols .

• Flexible I/O Expansion: Supports connection to up to 7 remote or expansion baseplates, allowing system growth without replacing the CPU .

• Battery-Backed Retention: An onboard lithium battery preserves user programs, register data, and real-time clock settings during power interruptions .

• LED Status Indicators: Front panel LEDs display RUN, OK, FAULT, BATT, I/O, and COM status for immediate diagnostic feedback .

• Mode Selection Switch: Physical RUN/STOP/OFF switch enables manual control over CPU operating mode .

Application Scenarios
This CPU module is deployed in industrial automation environments that demand reliable processing and flexible communication:

• Manufacturing Automation: Controls assembly lines, packaging machinery, and material handling systems where coordinated logic and high-speed counting are required .

• Process Control: Manages temperature, pressure, and flow control loops in chemical, food processing, and water treatment plants using PID instructions and floating point math .

• Machinery Control: Directs the operation of CNC equipment, plastic molding machines, and textile machinery through sequential logic and I/O management .

• SCADA and Data Acquisition: Collects production data from distributed sensors and communicates with supervisory systems for real-time monitoring .

• Energy and Power Systems: Performs control functions in power distribution, generator management, and utility automation applications .

• Building Automation: Oversees HVAC control, lighting management, and energy monitoring systems in commercial and industrial facilities .

Important Clarification on Search Results
The search results for IC693CPU363-CH reveal significant contradictions across various third-party websites. The technical specifications presented above are drawn from the most consistent sources, which describe this module as a 25 MHz CPU with 240 KB user memory and three serial ports . Other sources contain conflicting data, including claims of 96 MHz processor speed, 1 MB memory capacity, or 24 V DC power input . Operating temperature ranges vary from 0°C to 60°C in most listings  to -40°C to 60°C in others . These discrepancies underscore the importance of consulting official GE documentation when precise specifications are required for system integration or replacement planning.