The General Electric IC695CRU320 is a high-performance Redundancy Processor designed for the PACSystems RX3i platform. Engineered for critical industrial applications requiring high availability, this CPU module enables hot-standby configurations to minimize process downtime. In a redundant setup, the module facilitates an automatic, seamless transfer of control from a primary rack to a secondary rack in the event of a detected failure, with a switchover time of one logic scan (minimum 3.133 msec).
Features
- Intel Celeron M processor operating at 1 GHz.
- Supports redundant or hot-standby system configurations.
- Equipped with 64 MB of battery-backed RAM and 64 MB of non-volatile flash memory.
- Integrated Error Checking and Correction (ECC) for RAM data integrity.
- Two integrated serial communication ports supporting RS232 and RS485 standards.
- Occupies two slots in the RX3i chassis.
- Dedicated System Fault (Sys Flt) and I/O Force front-facing status LEDs.
Applications
This processor is intended for complex, mission-critical automation environments where controller failure cannot be tolerated. It is widely utilized in large-scale process control, energy management, and manufacturing systems where high availability and rapid fault recovery are essential. The module supports synchronization links (IC695RMX128/228) for high-speed data transfer between redundant controller pairs.
Technical Specifications
| Model | IC695CRU320 |
| Processor | Intel Celeron M (1 GHz) |
| User RAM | 64 MB (Battery-backed) |
| Flash Memory | 64 MB (Non-volatile) |
| Switchover Time | Max 1 logic scan (min 3.133 msec) |
| Serial Ports | 2 (RS232/RS485) |
| Slot Occupancy | 2 Slots |
| Operating Temp | 0 degC to 60 degC |
| Power Requirements | +3.3 VDC (1.0A), +5 VDC (1.2A) |
Installation Guidelines
- Ensure the rack is powered down before inserting or removing the CPU module to prevent electrical damage.
- The module is rated as open equipment (IP20); installation in a NEMA/UL Type 1 or equivalent protective enclosure is required to prevent ingress of dust, moisture, or contaminants.
- Proper grounding practices must be followed to maintain noise immunity and protect the internal circuitry.
- Requires an external high-capacity battery (IC693ACC302) for long-term memory retention.
- Handle the module using proper ESD precautions to prevent static discharge damage to the internal components.
FAQ
What is the primary function of the IC695CRU320?
It acts as a redundancy processor for PACSystems RX3i systems, providing automatic failover to a standby controller to maintain continuous operation during hardware faults.
What additional hardware is needed for redundancy?
The system requires a Redundant Memory Exchange (RMX) module, such as the IC695RMX128 or IC695RMX228, to synchronize data between the primary and secondary processors.
How is user data protected during power loss?
The module features 64 MB of battery-backed RAM and 64 MB of non-volatile flash memory to ensure that programs and critical data are retained when power is disconnected.
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