IC695CMU310 RX3i CPU | GE Fanuc Processor Module

Overview

The IC695CMU310 from GE Fanuc is a single-slot central processing unit (CPU) for the RX3i series. It delivers high-speed Boolean execution, flexible communication, and robust memory for advanced control and automation tasks. Designed for universal backplane compatibility, this processor supports multiple protocols and provides reliable performance in industrial environments.

Technical Specifications

• Model: IC695CMU310

• Module Type: Central Processing Unit (CMU)

• Series: RX3i

• Slots Required: 1 (single slot)

• Backplane Support: Universal Backplane

• Communication Ports:

• 2 isolated ports: RS-232 and RS-485

• Protocols Supported: Modbus RTU Slave, SNP, Serial I/O

• Internal Power Requirements:

• +5 VDC: 1.0 A nominal

• +3.3 VDC: 1.25 A nominal

• Memory and Storage:

• Up to 10 MB battery-backed RAM

• 10 MB non-volatile flash memory

• Configurable: %I/%Q 32 Kbits discrete, %AI/%AQ up to 32 Kwords, symbolic memory up to 10 MB

• Battery Options:

• RX3i Lithium Smart Battery (IC695ACC302 recommended)

• Series 90-30 Lithium Battery Pack (IC693ACC302)

• Smart Coin Cell (IC698ACC701)

• Performance:

• Boolean execution speed: 0.195 ms per 1000 instructions (typical)

• Floating-point arithmetic supported

• Clock Accuracy:

• Time of Day: Max drift 2 s/day

• Elapsed Time: 0.0% maximum error

• Program Capacity: Up to 512 program blocks, max 128 KB per block

• Embedded Communication: RS-232, RS-485

• Backplane Compatibility: Dual bus support (RX3i PCI and 90-30 style)

• PCI Compliance: Electrically compatible with PCI 2.2 standard

• Operating Temperature: 0°C to 60°C (optional -40°C to +60°C)

Applications

• Central processor for RX3i PACSystems in factory automation

• Supports real-time control of distributed I/O and networked devices

• Suitable for process, machine, and infrastructure control requiring high reliability

FAQ

• Q: Does IC695CMU310 support floating-point operations?
  A: Yes, floating-point arithmetic is supported for advanced calculations.

• Q: What communications protocols are compatible?
  A: Supports Modbus RTU Slave, SNP, Serial I/O, RS-232, RS-485.

• Q: How much user program memory is available?
  A: Up to 10 MB battery-backed RAM and 10 MB non-volatile flash memory.