FANUC IC695CRU320-EN

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FANUC IC695CRU320-EN

FANUC IC695CRU320-EN – Overview

The IC695CRU320-EN is a CPU/Redundancy Unit (CRU) used in the PACSystems RX3i PLC platform (originally from GE Intelligent Platforms, now part of Emerson). It is designed for high-availability and redundant control systems in critical industrial applications.

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Key Function

The IC695CRU320-EN is the redundant controller CPU that works in a dual-controller hot-standby system. Two CRU units operate as:

• Primary (active) controller
• Secondary (standby) controller

If the active CPU fails, the standby CPU takes over automatically and seamlessly, minimizing downtime.

Typical industries:

• Power generation
• Oil & gas
• Water/wastewater
• Chemical & petrochemical
• Large manufacturing plants

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Main Features

High Availability Redundancy

• Supports hot standby CPU redundancy
• Automatic switchover without stopping the process
• Synchronizes memory, I/O, and communications in real time

Powerful RX3i Processing Platform

• Part of the PACSystems RX3i series
• Supports complex control, data logging, and communications
• Deterministic and real-time performance

Built-in Ethernet (EN version)

The EN suffix means:

• Integrated Ethernet communication ports
• Supports industrial protocols such as:
  • SRTP
  • Modbus TCP
  • Ethernet Global Data (EGD)

Large Memory & High Performance

Typical specs (series level):

• High-speed processor for advanced control logic
• Large user memory for:
  • Ladder logic
  • Structured text
  • Function blocks
• Supports large I/O systems

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Redundancy System Architecture

A redundant RX3i system using IC695CRU320-EN typically includes:

• 2× CRU controllers (Primary + Secondary)
• Redundant power supplies
• Redundant communication networks
• Redundant I/O racks

Benefits:

• Near-zero downtime
• Increased safety
• Continuous process operation

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Typical Applications

Industry	Example Use
Power plants	Turbine & boiler control
Oil & Gas	Pipeline and refinery control
Water treatment	Pump station redundancy
Chemical plants	Continuous process control
Large factories	Mission-critical automation