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SKU 2176051  UPC 01303326247710




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Common misspellings:
  • 1C695CMX128
  • IC695CMXl28
  • IC695CMX12b
  • IC695CMX128

Product Description

The IC695CMX128 is a Control Memory Xchange module from the GE Fanuc RX3i Series.  This module provides deterministic sharing of data among PLCs and other computing devices on a high-speed fiber optic network, using reflective memory technology.  See specifications for this unit on IC695CMX128's website page.

Technical Specifications

Module Type:  Relective Memory 
Number of Slots:   1 (Single Slot)
Bus Speed: 2.1 Gigabits/sec.
Comm Ports: N/A
Protocol Support:   None Required
Internal Power: 660 mA @ 3.3VDC, 253 mA@ 5VDC


Technical Information

Packet size

Dynamic packet sizes of 4 to 68 bytes (firmware version 1.04 and later), automatically controlled by the CMX module

Transfer rate

Network link speed of 2.1 Gbits/sec

User memory


Input power

(from RX3i power supply)

660 mA @ +3.3 VDC

253 mA @ +5 VDC


â–         Fiber optic LC type, conforms to IEC 61754-20

â–         Zirconium ceramic ferrule

â–         Insertion loss: 0.35 dB (maximum)

â–         Return loss: -30dB


Troubleshooting IC695CMX128

Troubleshooting information is available on IC695CMX128's website page; it also includes a datasheet user-manual and a wiring diagram.


Repair your IC695CMX128

PDF Supply can repair your IC695CMX128 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 IC695CMX128?  Answer:  The IC695CMX128 is a Control Memory Xchange module from the GE Fanuc RX3i Series. 
  • Question:  What does IC695CMX128 provide?  Answer:  This module provides deterministic sharing of data among PLCs and other computing devices on a high-speed fiber optic network, using reflective memory technology.
  • Question:  What is reflective memory technology/a reflective memory network?  Answer:  A reflective memory network can contain up to 256 nodes. Each node can be any reflective memory device that is compatible with the 5565 family. So, when data is written to 1 node, all nodes on the network are automatically updated with the new data. 
  • Question:  How are the nodes in a reflective memory network connected?  Answer:  Each node is connected in a daisy-chained loop using fiber optic cables. The transmitter of the first node is tied to the receiver of the second which, is tied to the receiver of the third, and so on, until the loop is completed back at the receiver of the first node. 
  • Question:  How many IC695CMX128 modules does a RX3i main rack support?  Answer:  It supports a maximum of 6 modules. 
  • Question:  How much Mbytes of reflective memory does IC695CMX128 have?  Answer:  This module has 128 Mbytes of reflective memory with parity. 
  • Question:  Are jumper or switch settings required for configuration of all node parameters?  Answer:  No, they are not. 
  • Question:  What should I do if my IC695CMX128 is not working properly?  Answer:  Your IC695CMX128 may need repair.

For more information on the IC695CMX128 Control Memory Xchange Module of the GE Fanuc RX3i Series, please see the Datasheet User-Manual.


Release History


Firmware Version





Jul. 2015

This change just further enhances the designs’ resistance to the rare condition of corruption during a memory read from occurring.



Sep. 2013

Hardware update to resolve a component obsolescence issue. No changes to features, functions or compatibility.



Jul. 2013

This update prevents a rare memory read data corruption issue from occurring.



Feb. 2013

This firmware update enhances the data corruption

self-correcting mechanism to provide additional detection and correction capability for memory reads.



Dec. 2012

This hardware update addresses a rare condition in which some units may exhibit an impedance between system 0V and earth ground that is lower than the designed value.



Oct. 2012

The mechanism used to report the memory read data corruption via the parity error LISR bit and interrupt has been removed in version 1.06 in favor of a new

self-correcting mechanism that is transparent to the user application and handled internally by the CPU (beginning with CPUv7.17).



Aug. 2011

Increases the maximum packet size that can be accepted and processed to 68 bytes.

Adds the ability to detect and correct a rarely occurring condition of corruption in data read operations.



Oct. 2009

See GFK-2506B for problems resolved.



Sep. 2008

Initial release.


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