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SKU 2171007  UPC 0554791013812


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Technical Specifications for IC695CPE305

ManufacturerGE Fanuc
SeriesRX3i PACSystems
Part NumberIC695CPE305
Product TypeCPU
Program Storage5 MB of flash memory
Power Requirement3.3V DC and 1 Amp, 5V DC and 1 Amp
Embedded CommunicationsRS-232
Serial Protocol SupportModbus RTU Slave, SNP, Serial I/O protocols
Program BlocksUp to 512 program blocks
Operating Temperature0-60 degrees Celsius

Product Description

The IC695CPE305 is a 1 GHz CPU from the GE Fanuc PACSystems RX3i Series.  It comes equipped with an RS-232 serial port and an embedded Ethernet interface, as well as 5 MB RAM (user memory) and 5 MB of non-volatile flash storage memory. 


The controller module supports up to 512 program blocks, each of which can be as large as 128 KB. You configure IC695CPE305 over your Ethernet network using Proficy Machine Edition software. As with other programmable logic controllers in this product family, you can program this one in any of four different programming languages (Ladder Diagram, Structured Text, C, or Function Block Diagram). The IC695CPE305 CPU can also interpret the Serial I/O protocol, the Modbus RTU Slave protocol, and the SNP Slave protocol.


Labeled LED indicators on the unit housing can be green, red, off, or blinking when the unit is powered up. This makes troubleshooting efficient, and lets you verify system status at a glance.


IC695CPE305 can be installed in any pair of slots in the main RX3i controller rack except for the slots with the two highest numbers on them. The  unit has a Universal Serial Bus (USB) port, but that port supports only the transfer of application data; it is not designed to support a "permanent" connection. Similarly, because IC695CPE305 has less user memory than other CPUs in the RX3i Series, if your operations routinely require you to transfer large files, you might consider using a CPU with more user memory instead (other CPUs in this product family have twice the memory of IC695CPE305).

Technical Specifications

Processing Speed:  1 GHz
CPU Memory: 5 Mbytes
Floating Point: Yes
Power Requirements:   3.3 VDC, 5 VDC or 24 VDC
Serial Protocols: Modbus RTU Slave, SNP Slave, Serial I/O
Embedded Comms:  RS-232


The IC695CPE305 CPU is an RX3i PACSystems central processing unit that is manufactured by GE Fanuc. Its dual PCI/Serial backplane provides the operators with the facilities to allow their systems to communicate with intelligent option modules and I/O modules in their systems. It also provides facilities to transfer applications through USB 2.0, A-type removable data storage devices. This module offers an embedded Ethernet interface with a maximum of 2 programmer connections. The Ethernet interface comes with a 10BaseT RT-45 port with an Ethernet data rate of 10 or 100 MB per second. The IC695CPE305 CPU has a dual backplane that supports the RX3i PCI and Series 90-30 style serial busses.       


The IC695CPE305 Central Processing Unit comes with 5 MB of non-volatile flash user memory. Its internal serial port or Ethernet port can be used to communicate with the programmer module. An optional energy pack can be used with this CPU module to write user memory to the non-volatile storage when the system power is interrupted. The energy pack can be mounted on the left side of the module in Slot 0 of the rack. This module can accommodate any amount of user memory by using its auto-located symbolic variables. The important specifications of the IC695CPE305 module include a power requirement of 3.3 Volts DC at 1 Amp or 5 Volts DC at 1 Amp for different applications, a Boolean execution speed of 0.072 milliseconds per 1000 Boolean instructions, an RS-232 embedded serial communication port, a real-time clock with a battery with an estimated life of 5 years, and dual backplane support. It is used to monitor and control machines and application processes in real-time. 

Technical Information


Memory retention

The non-volatile storage (NVS) can retain data indefinitely without loss of data integrity. When CPU power is restored, data stored in NVS is transferred back to user memory and the NVS is cleared.

Program storage

5 Mbytes of non-volatile flash user memory

Power requirements

+3.3 VDC: 1.0 A

+5 VDC: 1.0 A (up to 1.5 A if USB is fully loaded with 0.5 A)

+24 VDC: 0.5A at startup, 0.1 A during run time (Applies only if Energy Pack is connected to the CPE305.)

Operating Temperature

0 to 60°C (32°F to 140°F)

Floating point


Boolean execution speed, typical

0.072 ms 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 serial communications


Real Time Clock battery

Estimated life of 5 years; must be replaced every 5 years on a regular maintenance schedule.

Serial Protocols supported

Modbus RTU Slave, SNP Slave, 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 memory Symbolic: configurable up to 5 Mbytes

Embedded Ethernet interface specifications


Max. no. of connections

Two programmer connections

Ethernet data rate

10Mb/sec and 100Mb/Sec

Physical interface

10BaseT RJ-45

Remote Station Manager over UDP

Yes. Refer to the Station Manager Manual, GFK-2225J or later for supported commands.

Configurable Advanced User Parameters

Yes. Refer to TCP/IP Ethernet Communications for PACSystems, GFK-2224K or later for supported AUPs.

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 IC695CPE305

Troubleshooting information is available on IC695CPE305's website page; it also includes a datasheet, a user manual, and a wiring diagram.


Repair your IC695CPE305

PDF Supply can repair your IC695CPE305 in 3-5 business days. And PDF Supply stands by all of its repairs with a 1 year customer satisfaction warranty.


IC695CPE305's Real Time Clock Kept By RTC battery - IC690ACC001, Not By Energy Pack


IC695CPE305 working with Energy Pack, RAM data will be kept after power cycle, but not Real Time Clock.


The IC695CPE305 is shipped with a real time clock (RTC) battery IC690ACC001 installed, customer need to remove the pull-tab on the battery before the installation of the module to let it work.


The RTC battery has an estimated life of 5 years and must be replaced every 5 years on the regular maintenance schedule.


RX3i IC695CPE305 - Controller Error 8097 during download [0x05][0xE8] [0x801B0006]


When downloading to RX3i IC695CPE305 with Profinet Controller (IC695PNC001) the following Error message may be observed in the feedback zone:

---------- Download to Controller not completed ----------

Error 8097: Controller Error - No user memory is available to allocate [0x05][0xE8] [0x801B0006]

Download Aborted - 1 error(s), 0 warning(s)

Tip: Press Shift+F3 to cycle through errors; F4 to cycle through errors and warnings.


This is known to occur with RX3i CPE305 that has a Profinet controller configured with at least 1 RX3i Profinet Scanner (IC695PNS001 or IC695CEP001) configured in the hardware configuration mixed in with other Profinet IO devices (GE-IP or 3rd party). As long as there is at least one of these mentioned two scanners, this issue may occur.

The is due to the CPE305 only supporting 5MB user memory. The Profinet GSDML files for the two mentioned scanners exceeds the total user memory available, hence will not fit inside a CPE305 controller.

One solutions is to upgrade to a larger CPU such as CPE310 or greater or keep the existing CPE305 and apply SIM-2 for PME 8.60, read further.

As of PME 8.60 SIM2, this issue has been resolved via a new feature to compress the hardware configuration size permitting the application to successfully download to the PLC.

This is done via a new PLC target property setting called " Compression Level ".

Right click on PLC target and the inspector window will show the following new feature:


Normal is the default setting and Moderate is the enhanced version that allows the download to PLC. Change to Moderate and then perform the download again.

Refer to PME help topic "Compression Level" for Important Operational Notes when working with other instances of PME that do not support enhanced compression. From menu bar > Help > Search > type in "Compression Level" with quotes > List topics


Customer Questions and Answers

  • Question:  What is an IC695CPE305?  Answer:  The IC695CPE305 is a Central Processing Unit from the GE Fanuc RX3i Series. 
  • Question:  What does IC695CPE305 do?  Answer:  This CPU can be used to perform real time control of machines, processes, and material handling systems. 
  • Question:  How does IC695CPE305 communicate with the programmer?  Answer:  The CPU communicates via the internal Ethernet port or a serial port. 
  • Question:  How does IC695CPE305 communicate with I/O and Intelligent Option modules?  Answer:  The CPU communicates over a dual PCI/Serial backplane.
  • Question:  What happens when I power up IC695CPE305?  Answer:  It will do an overall self-diagnostic check.
  • Question:  What should the end result be of the self-diagnostic check?  Answer:  It should land in the okay mode where the green LED is lit up. 
  • Question:  If I don't have any light on at all where it says OK or it's blinking red- What does that mean?  Answer:  It means there is something wrong with your processor and it will need repair or maybe even replacement. 

For more information on the IC695CPE305 Central Processing Unit of the GE Fanuc RX3i Series, please see the Datasheet User-Manual.

ST. LOUIS, Feb. 1, 2019 – Emerson today announced it has completed the purchase of Intelligent Platforms from General Electric.
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