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IC695CPU310 Wiring

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  • IC695CPU310
  • IC695CPU310 Wiring

Product Description

The IC695CPU310 is a 300 MHz Central Processing Unit from the GE Fanuc RX3i Series. The IC695CPU310 has an Intel Celeron (Pentium III) microprocessor with 10 MB of RAM and 10 MB of flash storage. It also has a pair of embedded serial ports for RS-232 and RS-485 communications. Both ports face front on the chassis for easy access. The IC695CPU310 supports three different serial protocols (Modbus RTU Slave, SNP, and Serial I/O), all of which work with programmable logic controllers to structure the ways in which PLCs supply information: IC695CPU310 uses the SNP Slave protocol to communicate with HMI (human machine interface) devices.


Eight LEDs on the face of the chassis let you see system status at a glance, so that you can tell whether the CPU, battery, and communications channels are working as expected. Product documentation reminds you of what LED colors and states mean, but the CPU follows widely accepted conventions: blinks or red lights indicate system faults, while steady green indicates normal operations.


Dual backplane bus architecture supports RX3i PCI and GE Fanuc Series 90-30-style serial bus usage. The CPU itself supports up to 512 program blocks, each with a maximum size of 128 KB. You can program it in the Ladder Diagram, Structured Text, or Function Block Diagram programming languages. You can also program it in C.


RX3i CPUs are programmed and configured by the programming software to perform real-time control of machines, processes, and material handling systems. 

Technical Specifications

Processing Speed: 300 MHz
CPU Memory: 10 Mbytes
Floating Point: Yes
Serial Ports: 2
Serial Protocols: Modbus RTU Slave, SNP, Serial I/O
Embedded Comms: RS-232, RS-486


GE Intelligent Platforms / GE Fanuc GE RX3i PacSystem

SKU 2174226  UPC 047085403555

Part Number: IC695CPU310 / ic695cpu310
Mfr/Brand Name: GE Automation
Mfr Number: IC695CPU310 / ic695cpu310
Type: 300Mhz Central Processing Unit

Troubleshooting and Product Information for IC695CPU310

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

New IC695CPU310
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Other IC695CPU310

Available Revisions:

1C695CPU310 , GEFIC695CPU310 , CIMIC695CPU310



Battery: Memory retention

For estimated battery life under various conditions, refer to the PACSystems CPU Reference Manual, GFK-2222.

Program storage

Up to 10 Mbytes of battery-backed RAM

10 Mbytes of non-volatile flash user memory

Power requirements

+3.3 VDC: 1.25 Amps nominal

+5 VDC: 1.0 Amps nominal

Operating Temperature

0 to 60°C (32°F to 140°F)

Floating point


Boolean execution speed, typical

0.195ms per 1000 Boolean instructions

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 90-30-style serial

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 10 Mbytes

For environmental specifications and compliance to standards (for example, FCC or European Union Directives), refer to the PACSystems RX3i Hardware and Installation Manual, GFK-2314.

Troubleshooting IC695CPU310

Troubleshooting information is available on IC695CPU310's website page; it also includes a datasheet, a user manual, and a wiring diagram.

Repair your IC695CPU310

PDF Supply can repair your IC695CPU310 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 IC695CPU310?   Answer:  The IC695CPU310 is a Central Processing Unit from the GE Fanuc RX3i Series. 
  • Question:  What does IC695CPU310 do?  Answer:  This CPU can be used to perform real time control of machines, processes, and material handling systems. 
  • Question:  How does IC695CPU310 communicate with the programmer and HMI devices?  Answer:  IC695CPU310 communicates via a serial port using SNP Slave protocol. 
  • Question:  How does IC695CPU310 communicate with I/O and Intelligent Option modules?  Answer:  IC695CPU310 communicates over a dual backplane bus. 
  • Question:  What does that bus provide?  Answer: 
    • High-speed, PCI backplane for fast throughput of new advanced I/O.
    • Serial backplane for easy migration of existing Series 90-30 I/O.
  • Question:  What are some of the features of IC695CPU310?  Answer: 
    • Contains 10 Mbytes of battery-backed user memory and 10 Mbytes of non-volatile flash user memory. 
    • 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.
    • In-system upgradeable firmware. 
    • 2 serial ports- RS-485 serial port and RS-232
    • Ethernet communications via the rack-based Ethernet Interface module (IC695ETM001). 
    • Time synchronization to SNTP Time Server on Ethernet network when used with an Ethernet module with firmware release 5.0 or later.
  • Question:  What should I do if my IC695CPU310 is not working properly?  Answer:  Your IC695CPU310 may need repair.

For more information on the IC695CPU310 Central Processing Unit of the GE Fanuc RX3i Series, please see the Datasheet User-Manual.

Release History

Catalog Number

FW Version




Corrects the behavior of the Logic Driven Read/Write to Flash service requests, SVC_REQ56 and SVC_REQ 57.



Introduces support for new modules, enhancements to provide a more robust implementation of the Modbus RTU protocol, improved Run signal handling in the expansion rack and other improvements. Also resolves several problems found in earlier releases.



Provides for OEM protection in flash-based systems that do not use a battery. For additional problems resolved, see GFK-2329AA.



Adds User Defined Types, Variable Indexed Arrays, Logic Driven Write to Flash, and Backplane Operations Controller Enhancement features. See GFK-2329Z for details and problems resolved.



Enables support that is functionally identical to the IC695CMX128 for the IC695RMX128.



Corrects the problem described in GFK-2329X.



Supports the IC695PMM335 PACMotion Multi-Axis Motion Controller and other new features, and corrects the problems listed in GFK-2329X.



Introduced run-mode store of EGD and LREAL data type. See GFK-2329V for problems resolved.



















































Initial release.


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