I/O modules

Processor Capabilities

The GE IC695CPU310 central processing unit powers the RX3i PACSystems automation platform. This high-performance controller executes complex logic with deterministic scan cycles. It manages discrete and analog I/O for medium-scale industrial applications. Control engineers choose this CPU for its balanced performance and memory capacity.

Memory Architecture and Storage

The GE IC695CPU310 provides 1 megabyte of user memory for application programs. It includes 5 megabytes of non-volatile flash memory for firmware storage. The CPU dedicates 2 megabytes for data tables and register retention. Battery-backed RAM preserves program variables during power interruptions. This memory allocation supports most mid-range automation requirements.

Processing Speed and Scan Performance

The CPU executes Boolean instructions in 0.18 milliseconds per 1000 contacts. It handles floating-point math operations in 1.5 milliseconds per 1000 calculations. The typical scan cycle averages 10 milliseconds for standard applications. The processor uses configurable watchdog timers for fault monitoring. This speed ensures responsive control for most industrial processes.

Communication Interfaces and Protocols

The GE IC695CPU310 features one RS-232 serial port for programming access. It includes one RS-485 port for Modbus RTU network communication. The CPU also provides an Ethernet port supporting SRTP and Modbus TCP/IP. These interfaces enable connectivity with HMIs and SCADA systems. The Ethernet port facilitates remote diagnostics and data collection.

I/O Capacity and System Scalability

The processor supports up to 256 discrete I/O points in local racks. It accommodates 64 analog channels for process signal monitoring. The CPU manages remote I/O via Ethernet and serial communication networks. Expansion modules add 512 additional I/O points through the backplane. This scalability supports growing automation requirements effectively.

Removable Storage and Firmware Updates

The CPU includes a removable SD card slot for program backup. Users can store configuration files and application archives on the memory card. The processor automatically loads programs from the card at power-up. This feature simplifies firmware updates and machine cloning procedures. The SD card eliminates the need for a programming computer during startup.

Physical Dimensions and Mounting

The GE IC695CPU310 measures 110 millimeters in width, 120 millimeters in height, and 85 millimeters in depth. The unit weighs 0.5 kilograms for straightforward handling. It inserts into any slot of the RX3i Universal Backplane. A locking latch secures the processor firmly in position.

Power Consumption and Heat Management

The CPU draws 450 milliamperes from the 5 V DC backplane supply. It consumes an additional 200 milliamperes from the 3.3 V DC rail. Total power dissipation reaches 4.5 watts under full processing load. The integrated heat sink handles thermal management passively. This efficient design eliminates the need for cooling fans.

LED Status Indicators and Diagnostics

The front panel features three LEDs for operational status monitoring. A green RUN LED indicates normal program execution. A red FAULT LED signals hardware or software errors. A STATUS LED displays communication and configuration states. These indicators provide immediate visual feedback for troubleshooting.

Environmental Specifications

The processor operates between 0°C and 60°C ambient temperature. It withstands 5% to 95% non-condensing humidity conditions. The CPU meets UL 508, CSA, and CE safety standards. The module carries an IP20 protection rating for indoor installations. The conformal-coated PCB resists moisture and airborne contaminants.

Technical Specifications Table

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