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GE CPU Module IC695CPU320

GE CPU Module IC695CPU320

Product Description

The IC695CPU320 is a Central Processing Unit from the GE Fanuc PACSystems RX3i Series. The IC695CPU320 has an Intel Celeron-M  microprocessor rated for 1 GHz, with 64 MB of user (random access) memory and 64 MB of flash (storage) memory. RX3i CPUs are programmed and configured to control machines, processes, and material handling systems in real time.

The IC695CPU320 has a pair of independent serial ports built into its chassis. Each of the two serial ports occupies a slot on the system base. The CPU supports SNP, Serial I/O, and Modbus Slave serial protocols. In addition, IC695CPU320  has a dual backplane design with bus support for RX3i PCI and a 90-30-style serial bus. Like other CPUs in the Rx3i product family, IC695CPU320 provides automatic error checking and correction.

IC695CPU320 uses Proficy Machine Edition, the development environment common to all GE Fanuc controllers. Proficy Machine Edition is made for creating, running and diagnosing operator interface, motion and control applications.

Eight indicator LEDs on the CPU help with troubleshooting. Each LED answers to a separate function, except for the two LEDs labeled COM 1 and COM 2, which belong to different ports rather than to different functions. The other LEDs are CPU OK, Run, Outputs Enabled, I/O Force, Battery, and Sys Flt -- which is an abbreviation for "system fault." The I/O Force LED indicates whether Override is active on a bit reference. When the Outputs Enabled LED is lit, then output scan is enabled. Other LED labels are self-explanatory. Both the LEDs and the serial ports are clustered on the front of the device for the easy visibility.

Technical Specifications

Processing Speed:

1 GHz

CPU Memory:

20 Mbytes

Floating Point:


Serial Ports:


Serial Protocols:

SNP, Serial I/O, Modbus Slave

Embedded Comms:

RS-232, RS-486

Technical Information

CPU Performance

For CPU320 performance data, refer to Appendix A of the PACSystems CPU Reference Manual, GFK-2222W or later.

Battery: Memory retention

For battery selection, installation and estimated life, refer to the PACSystems RX3i and RX7i Battery  Manual,  GFK-2741

Program storage

Up to 64 MB of battery-backed RAM

64 MB of non-volatile flash  user memory

Power requirements

+3.3 Vdc: 1.0 Amps nominal

+5 Vdc: 1.2 Amps  nominal

Operating Temperature

0 to 60°C (32°F to 140°F)

Floating point


Time of Day Clock accuracy

Maximum drift of 2 seconds per day

Elapsed Time Clock (internal timing) accuracy

0.01% maximum

Embedded communications

RS-232, RS-485

Serial Protocols supported

Modbus RTU Slave, SNP, Serial I/O


Dual backplane bus support: RX3i PCI and high-speed serial bus

PCI compatibility

System designed to be electrically compliant with PCI 2.2 standard

Program blocks

Up to 512 program blocks. Maximum size for a block is 128KB.


%I and %Q: 32Kbits for discrete

%AI and %AQ: configurable up to 32Kwords

%W: configurable up to the maximum available user RAM Symbolic: configurable up to 64 Mbytes

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