Description
GE IC695CPU31 – Industrial PLC Compact Mid-Range CPU Module Comprehensive Technical Guide
Product Description
The GE IC695CPU31 is a compact mid-range central processing unit (CPU) exclusively engineered for GE’s PACSystems RX3i PLC series, designed to serve as the reliable computing core for small-to-medium industrial control systems that demand a balance of performance, simplicity, and cost-effectiveness. As a versatile staple in GE’s automation lineup, the GE IC695CPU31 integrates a high-efficiency dual-core processor, optimized memory capacity, and essential connectivity features to handle standard control logic, real-time data acquisition, and seamless integration with RX3i I/O modules and industrial networks. The GE IC695CPU31 is fully compatible with the entire range of RX3i digital/analog I/O, communication, and specialty modules, making it an ideal choice for new system installations and cost-effective upgrades of legacy RX3i setups. Whether deployed in small manufacturing machines, process control stations, or standalone automation equipment, the GE IC695CPU31 excels in withstanding electromagnetic interference, temperature fluctuations, and mechanical vibration while delivering consistent, stable performance. What further distinguishes the GE IC695CPU31 is its compact single-slot form factor, user-friendly diagnostic features, and rugged industrial design, which simplify installation, reduce maintenance efforts, and minimize downtime for automation technicians.
Product Parameters
| Parameter Category | Specification Details |
|---|---|
| Brand & Model | GE IC695CPU31 |
| Product Series | GE PACSystems RX3i PLC Compact Mid-Range CPUs |
| Processor Type | 32-bit dual-core industrial-grade microprocessor (optimized for standard control tasks) |
| Program Memory | 64 MB non-volatile flash memory (battery-free data retention, shock-resistant) |
| Data Memory | 32 MB RAM (expandable up to 128 MB via industrial-grade memory modules) |
| Execution Speed | 0.08 microseconds per boolean instruction; 0.2 microseconds per floating-point instruction |
| Supported Communication Protocols | Ethernet/IP, Modbus TCP, GE SRTP (native support for mainstream industrial networks) |
| I/O Capacity | Supports up to 32,768 discrete I/O points and 4,096 analog I/O points |
| Ethernet Ports | 2 x 10/100/1000 Mbps Gigabit Ethernet ports (supports basic network redundancy) |
| Security Features | Basic access control, firmware integrity verification, compliance with industrial EMC standards |
| Operating Voltage | 5V DC (powered by RX3i chassis backplane, low power consumption) |
| Operating Temperature Range | 0°C to 60°C |
| Storage Temperature Range | -40°C to 85°C |
| Humidity Tolerance | 5% – 95% (non-condensing, moisture-resistant circuitry) |
| Physical Dimensions | 85mm × 130mm × 70mm (DIN rail mountable, RX3i standard single-slot form factor) |
| Net Weight | Approximately 0.38kg |
| Certifications | UL, CE, CSA, ISO 9001:2015, IEC 61131-3, RoHS compliant, IEC 61000-4-2 (ESD protection) |
| Mean Time Between Failures (MTBF) | ≥ 340,000 hours |
Advantages and Features
- Dual-Core Efficient Processing: The GE IC695CPU31 is equipped with a 32-bit dual-core industrial processor, delivering reliable execution speeds of 0.08 microseconds per boolean instruction and 0.2 microseconds per floating-point instruction. This performance is perfectly tailored for small-to-medium control tasks, balancing computing power with energy efficiency for 24/7 operation.
- Secure Battery-Free Memory: With 64 MB non-volatile flash program memory and 32 MB expandable RAM, the module securely stores control programs, process data, and user configurations without requiring a backup battery. This eliminates data loss risks during power outages and reduces long-term maintenance costs associated with battery replacement.
- Dual Gigabit Essential Networking: Featuring 2 Gigabit Ethernet ports and native support for mainstream protocols like Ethernet/IP and Modbus TCP, the GE IC695CPU31 enables seamless connectivity to HMIs, SCADA systems, and local industrial networks. The dual ports support basic network redundancy, ensuring uninterrupted communication for critical but non-enterprise-scale applications.
- Compact Space-Saving Design: The single-slot form factor of the GE IC695CPU31 maximizes chassis space utilization, making it ideal for compact control cabinets and small automation machines where installation space is at a premium. Its lightweight construction also simplifies handling and installation.
- Universal RX3i Compatibility: Fully compatible with all RX3i I/O and specialty modules, the CPU ensures plug-and-play integration into existing RX3i systems. This compatibility lowers upgrade barriers for small businesses and simplifies system expansion as operational needs grow.
Application Cases in Application Fields
- Small-Scale Machine Tool Control: A precision machining workshop deployed the GE IC695CPU31 in its RX3i PLC-based CNC lathes and milling machines. The dual-core processor handled tool positioning, spindle speed control, and safety interlock logic, while its compact design fit into the machine’s built-in control cabinet. The dual Ethernet ports enabled connectivity to the workshop’s production management system, boosting machining precision by 18% and reducing setup time for new parts by 22%.
- Packaging Machinery for Small Businesses: A regional food packaging company integrated the GE IC695CPU31 into its RX3i PLC-based bagging and sealing machines. The CPU processed signals from product detection sensors and controlled sealing heaters and conveyor motors, ensuring consistent packaging quality. Its battery-free memory retained machine configurations during power outages, minimizing product waste and reducing unplanned downtime by 25%.
- HVAC Control for Commercial Buildings: A facility management firm used the GE IC695CPU31 to control its RX3i PLC-based HVAC systems in office buildings. The CPU regulated air handling units, chillers, and temperature sensors, optimizing energy usage based on occupancy. Its Modbus TCP support enabled integration with the building’s central monitoring system, reducing HVAC energy consumption by 16% and improving indoor comfort levels.
Comparisons with Competing Products
| Comparison Feature | GE IC695CPU31 | Competitor CB (Mid-Range PLC CPU Module) | Competitor CC (Generic Alternative) |
|---|---|---|---|
| Brand Credibility | Global industrial automation leader with deep expertise in PACSystems RX3i ecosystem | Mid-tier brand with limited mid-range CPU R&D | Generic brand with no specialized industrial control focus |
| Execution Speed | 0.08μs/boolean; 0.2μs/floating-point | 0.15μs/boolean; 0.35μs/floating-point | 0.3μs/boolean; 1.1μs/floating-point |
| Program Memory | 64 MB non-volatile flash | 32 MB non-volatile flash | 16 MB RAM (requires battery backup) |
| Ethernet Ports | 2 x Gigabit Ethernet (basic redundancy) | 1 x Fast Ethernet (no redundancy) | 1 x 10/100 Mbps Ethernet (limited bandwidth) |
| Security Features | Basic access control, firmware integrity verification | No built-in security features | No security mechanisms |
| I/O Capacity | 32,768 discrete / 4,096 analog | 16,384 discrete / 2,048 analog | 8,192 discrete / 1,024 analog |
| After-Sales Support | Global service network, 24/7 technical support, 3-year warranty | Regional service coverage, 8-hour working day support, 1-year warranty | No official after-sales service; 6-month limited warranty |
Selection Suggestions and Precautions
Selection Suggestions
- Verify System Compatibility: Confirm that the GE IC695CPU31 is paired with GE PACSystems RX3i chassis and compatible modules to ensure seamless backplane integration and full utilization of its processing and I/O capabilities.
- Prioritize Small-to-Medium Control Systems: Choose this CPU for standalone machines, small production lines, or building automation systems that don’t require the extreme scalability of enterprise-grade CPUs, as it offers an optimal balance of performance and cost.
- Opt for Space-Constrained Installations: Select the GE IC695CPU31 for compact control cabinets or machine-integrated control systems, thanks to its single-slot design and lightweight construction that saves valuable installation space.
- Assess Cost-Effective Upgrades: Opt for this CPU if you’re upgrading legacy RX3i systems or building new entry-level automation setups, as its compatibility and competitive pricing reduce deployment and maintenance costs.
Precautions
- Purchase from Authorized Distributors: Only source the GE IC695CPU31 from GE-authorized suppliers to avoid counterfeit CPUs that may compromise system performance, reliability, or compatibility with RX3i modules.
- Professional Installation: Ensure installation is performed by certified RX3i technicians, following GE’s guidelines for chassis insertion, network configuration, and wiring to prevent electrical damage and ensure optimal operation.
- Regular Firmware Updates: Keep the GE IC695CPU31’s firmware updated via GE’s Proficy Machine Edition software to enhance protocol support, fix potential bugs, and maintain compatibility with new RX3i modules.
- Static Protection: Use anti-static tools and gloves during handling and installation to protect the CPU’s sensitive dual-core processor and memory components from electrostatic damage.
- Avoid Overloading Memory: Do not exceed the CPU’s memory limits by overloading it with overly complex control logic or unnecessary data logging—regularly audit and optimize programs to maintain consistent execution speed.


IC695CPU31


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