Description
GE IC695CRU320CA-EL Product Description
Product Overview
The GE IC695CRU320CA-EL is a redundant central processing unit designed for the GE PACSystems RX3i high-availability automation platform. It serves as the core control engine for mission-critical industrial systems that demand uninterrupted operation and zero-downtime control transfer.
This CPU module works in pairs with a redundant memory exchange module to form a hot-standby (HSB) architecture. The primary unit executes control logic in real time, while the backup unit continuously mirrors all program data and I/O status. If the primary CPU fails, the backup unit takes over control within one scan cycle with no process interruption. It supports both high-speed PCI backplane and legacy serial backplane, and is fully compatible with RX3i and Series 90-30 I/O modules. With hot-swap capability and built-in diagnostics, it minimizes maintenance downtime for critical production and process control systems.

GE IC695CRU320CA-EL
Core Product Features
- Powered by a 1 GHz Intel Celeron M processor with floating-point support, delivering fast execution of complex ladder logic, function blocks and C language programs.
- Equipped with 64 MB battery-backed user RAM and 64 MB non-volatile flash memory, retaining programs, parameters and fault logs through power loss events.
- Native hot-standby redundancy support works with RMX series modules to achieve bumpless control switchover between paired CPUs.
- Dual backplane architecture supports both high-speed PCI bus for advanced I/O modules and serial bus for legacy Series 90-30 migration.
- Built-in RS-232 and RS-485 serial ports support Modbus RTU Slave, SNP and Serial I/O protocols for direct field device connection.
- ECC (Error Correcting Code) memory automatically detects and fixes single-bit memory errors, improving long-term system reliability.
- Hot-swappable design allows module replacement without shutting down the entire rack, reducing maintenance downtime.
- Integrated real-time clock and on-board self-diagnostics enable fast fault localization and system status monitoring.
Technical Specifications
| Item | Specification |
|---|---|
| Official Model | IC695CRU320CA-EL |
| Product Type | Redundant Central Processing Unit (CPU) |
| Compatible Platform | GE PACSystems RX3i; backward compatible with Series 90-30 |
| Processor | 1 GHz Intel Celeron M embedded processor |
| Memory | 64 MB battery-backed user RAM; 64 MB non-volatile flash memory |
| Power Requirements | +3.3 VDC: 1.0 A nominal; +5 VDC: 1.2 A nominal |
| Communication Interfaces | 1× RS-232, 1× RS-485 |
| Supported Serial Protocols | Modbus RTU Slave, SNP, Serial I/O |
| Backplane Support | PCI 2.2 compliant high-speed bus; legacy serial backplane |
| Program Capacity | Up to 512 program blocks; max 128 KB per block |
| Flash Endurance | Minimum 100,000 write/erase cycles |
| Real-Time Clock Accuracy | Max 2 seconds drift per day |
| Operating Temperature | 0°C to +60°C |
| Storage Temperature | -40°C to +85°C |
| Humidity | 5% – 95% RH, non-condensing |
| Mounting | RX3i backplane slot, hot-swappable |
| Certifications | CE, UL, cULus, industrial EMC compliance |

GE IC695CRU320CA-EL
Application Fields
- High-availability production line control in automotive, electronics and discrete manufacturing plants
- Critical process control in chemical, pharmaceutical and food & beverage facilities
- Power distribution and substation automation systems requiring continuous operation
- Conveyor, sorting and material handling systems with zero-downtime requirements
- Water treatment, wastewater and municipal infrastructure control systems
- Legacy Series 90-30 system retrofit and migration to high-availability RX3i platforms
Related Model Recommendations
- IC695CPU315: Standard RX3i CPU module for non-redundant control applications with the same processing architecture.
- IC695RMX128: Redundancy Memory Xchange module that pairs with two CRU320 units to build a complete hot-standby control system.
- IC694ETM001: Ethernet communication module that adds network connectivity and SCADA integration to the CRU320 controller.
- IC695CHS007: 7-slot RX3i universal backplane chassis that accommodates the CRU320, power supply and I/O modules.
