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IC695CPU320 Wiring

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  • IC695CPU320
  • IC695CPU320 Wiring

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: Yes
Serial Ports: 2
Serial Protocols: SNP, Serial I/O, Modbus Slave
Embedded Comms:   RS-232, RS-486


GE Intelligent Platforms / GE Fanuc GE RX3i PacSystem

SKU 2176149  UPC 0807686797534

Part Number: IC695CPU320 / ic695cpu320
Mfr/Brand Name: GE Automation
Mfr Number: IC695CPU320 / ic695cpu320
Type: 1GHz Central Processing Unit

Troubleshooting and Product Information for IC695CPU320

Download product information, troubleshooting guides and operation manuals to get your PLC operational.

New IC695CPU320
Price: $10,451
2 In Stock
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Price: $6,995
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Reman IC695CPU320
Price: $4,995
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Other IC695CPU320

Available Revisions:

1C695CPU320 , GEFIC695CPU320 , CIMIC695CPU320

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

Troubleshooting IC695CPU320

Troubleshooting information is available on IC695CPU320's website page; it also includes a datasheet, a user manual, and a wiring diagram.


Repair your IC695CPU320

PDF Supply can repair your IC695CPU320 in 3-5 business days. And PDF Supply stands by all of its repairs with a 1 year customer satisfaction warranty.

Customer Questions and Answers

  • Question:  What is an IC695CPU320?  Answer:  The IC695CPU320 is a 1 GHz CPU Microprocessor from the GE Fanuc RX3i Series. 
  • Question:  How many serial ports does IC695CPU320 have?  Answer:  This CPU has 2 independent, on-board serial ports, accessed by connectors on the front of the module. 
  • Question:  What do ports 1 and 2 provide?  Answer:  They provide serial interfaces to external devices. Either port can be used for firmware upgrades. 
  • Question:  What does the CPU OK LED mean when its lit?  Answer:
    • It indicates the CPU has passed its power up diagnostics and is functioning properly.*
      • *After initialization sequence is complete.
    • When it is off, it means there is a CPU problem. RUN and OUTPUTS ENABLED LEDs may be blinking in an error code pattern, which can be used by technical support for troubleshooting. This condition and any error codes should be reported to your technical support representative. 
  • Question:  What does it mean when the CPU OK, OUTPUTS ENABLED, and RUN LEDs are blinking in unison?  Answer:  It indicates the CPU is in boot mode and is waiting for a firmware update through a serial port. 
  • Question:  What does the blinking OK LED indicate?  Answer:   When this light is blinking and the other LEDs are off, it means that the CPU is in a stop/halt state. It's possible that it is a watchdog timer fault so refer to the fault tables. If the programmer cannot connect, cycle the power with the battery attached and refer to the fault tables. 
  • Question:  What are some of the features of IC695CPU320?  Answer:
    • Contains 64 Mbytes of battery-backed user memory and 64 Mbytes of non-volatile flash user memory. 
    • Provides access to bulk memory via reference table %W. 
    • Configurable data and program memory.
    • Programming in Ladder Diagram, Structured Text, Function Block Diagram, and C.
    • Supports auto-located Symbolic Variables that can use any amount of user memory.
    • Reference table sizes include 32Kbits for discrete %I and %Q and up to 32K words for each analog %AI and %AQ. 
    • Supports most Series 90-30 modules and expansion racks.
    • Supports up to 512 program blocks. Maximum size for a block is 128KB.
    • Firmware may be upgraded in the field.
    • 2 serial ports- RS-485 serial port and RS-232 serial port.
    • Ethernet communications via the rack-based Ethernet Interface module (IC695ETM001).
    • Time Synchronization to SNTP Time Server on Ethernet network when used with Ethernet Release 5.0 or later module.
  • Question:  What should I do if my IC695CPU320 is not working properly?  Answer:  Your IC695CPU320 may need repair.

For more information on the IC695CPU320 1 GHz CPU Microprocessor of the GE Fanuc RX3i Series, please see the Datasheet User-Manual.


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These “New Surplus” units are a great cost saving alternative. This product is sealed in the original manufacturer’s packaging with all sub-assemblies and documentation. May indicate older date code. Comes with a PDF Supply 3-year warranty.

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Reconditioned products from PDF Supply are a cost-effective alternative to new and obsoleted PLC products. Every part is reconditioned down to the circuit board level and updated to the latest revision. All parts are thoroughly inspected and hand-cleaned before being functionally tested in a fully configured system.

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A verified substitute new product is a "drop in" replacement designed with identical specifications as the OEM product. It will meet all electrical and dimensional charactertics at a substanstially reduced price.

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