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SKU 2176126  UPC 0814541114726

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Technical Specifications for IC697CPX935

ManufacturerGE Fanuc
SeriesSeries 90-70
Part NumberIC697CPX935
Product TypeCPU
Microprocessor Speed96 Megahertz
Maximum I/O12,000 I/O
Flash Memory256 KB
Real-Time Machine ControlSupported
Maximum Operating Temperature122 degrees Fahrenheit

Product Description

The IC697CPX935 is a Single-Slot PLC CPU with three built-in serial ports manufactured by GE Automation and Controls.
It is capable of performing real-time control of systems. Using VMEC.1 format, the IC697CPX935 can communicate with different “smart option” modules via a backplane mounted on the rack. This device is operated via a three-position run/stop control switch or by a connection to a computer running appropriate software.


A 96MHz microprocessor allows this device to perform floating point calculations every 0.4 microseconds. Any mixture of 12K I/O and up to 8K analog I/O is supported by this device. The IC697CPX935 supports the following modules: the entirety of the IC697 family of discrete and analog I/O modules, programmable and alphanumeric display coprocessors, IC660 and IC661 bus controller modules, link and LAN interface modules, and communication modules.


One megabyte of on-board RAM memory is supported, which is maintained by a IC697ACC701 battery. Flash memory (NVRAM) is also supported with up to 256 kilobytes available for user data. System firmware is stored in flash memory. Disassembling the device or replacing the EPROM is not necessary for updating the firmware.


The IC697CPX935 is configured via a connected computer running MS-DOS or software applications in Win 95 or Win NT. Connection to this programmer computer is possible via a serial, parallel, or Ethernet interface. No Dual Inline Package (DIP) switches or jumpers are necessary. Operational settings are secured by a software password on the programming computer or a memory protect switch on the device itself.


To maintain a safe operational temperature in environments greater than 50 Celsius or 122 Fahrenheit, this device will require installation of a cooling fan with a minimum capability of 70 cubic feet per minute.


Refer to the product manual for proper installation instructions. Power to the rack should be off. Place the operational control switch in the stop position. The memory protect switch should also be off. The lithium battery may be inserted into either connector. Connect the IC697CPX935 to the rack. Restore rack power.

Technical Specifications

Module Type: Central Processing Unit
Number of Slots: 1 (Single slot)
Current Required: 3.1 Amps
Number of Points:    12K inputs and outputs (any mix)
Serial Ports: Three (RS-232 and RS-485)
Supports: IC660/IC661 I/O and IC697 I/O



The IC697CPX935 central processor unit or CPU is a GE Fanuc CPU that has been designed and manufactured in GE Series 90-70. It is designed to control the functions and process the data in a GE Series 90-70 PLC system. It can communicate through a LAN or through a link interface module. The maximum microprocessor speed that the IC697CPX935 CPU is capable of is 96 Megahertz. This CPU can be programmed either with MS-DOS or with the Microsoft Windows 95 or NT operating system. A computer that is running these operating systems can be connected to the CPU to program it. It can support up to 12,000 input and output points in any mix. The serial communication ports that the IC697CPX935 CPU comes with are the RS 485 serial communication port and the RS 232 serial communication port.


The GE Fanuc Series 90-70 IC697CPX935 CPU is capable of controlling its PLC in real-time. The modules in the Series 90-70 line that it is best-suited for controlling are analog I/O modules, discrete I/O modules, alphanumeric display modules, and programmable display modules. Different kinds of network communication modules are also supported. The RAM in the IC697CPX935 CPU is battery-backed and the capacity of the RAM is 1 MB. The flash memory has a capacity of 256 KB and this flash memory is primarily used for storing the user data and the system data. The IC697CPX935 CPU supports an Ethernet interface. Its maximum rated operating temperature is 122 degrees Fahrenheit, and if the environment frequently experiences higher temperatures than this, the CPU will need to have a cooling fan installed.

Technical Information



Battery: Shelf life

Battery:  Memory retention

5 years at 20o C  (68o F)

6 months nominal without applied power.

Current required from 5V bus

3.1  Amps nominal

Operating Temperature

0 to 60oC (32oF to 140oF); 70 CFM forced air required

0 to 50oC (32oF to 122oF); without forced air

Time of Day Clock accuracy

Elapsed Time Clock (internal timing) accuracy

"    3.5 seconds per day maximum

"    .01% maximum

Serial Ports

Port 1:   RS-232 compatible

Port 2: RS-485 compatible (optocoupler isolated) Port 3:  RS-485 compatible (not isolated)

Programmer Serial Attachment, or other serial devices

Protocols supported: SNP Slave only

VME Compatibility

System designed to support the VME standard C.1


Troubleshooting IC697CPX935

Troubleshooting information is available on IC697CPX935's website page; it also includes a datasheet user-manual and a wiring diagram.

Repair your IC697CPX935

PDF Supply can repair your IC697CPX935 in 3-5 business days. And PDF Supply stands by all of its repairs with a 1 year customer satisfaction warranty.


Series 9070 Bulk Memory


The Bulk Memory Area (BMA) is a contiguous block of memory (up to 4MB) that can be used by logic programs and external devices. BMA is available in the CPX processors, IC697CPX772, IC697CPX782, IC697CPX928 and IC697CPX935 (release 7.80 and later). Before BMA can be used, its size must be set to a value greater than zero in the Settings tab for the CPX processor configuration.


Use SVCREQ function 36 to read from the BMA to a local buffer area in the PLC, write from the local buffer area to the BMA, and retrieve the address of the BMA in the PLC. The only check done by the PLC is verifying that the specified local buffer does not fall outside the minimum and maximum available addresses for the application. The application must provide a valid local buffer area. Otherwise, unexpected results can occur.

Parameter Block Setup

This service request uses an input parameter block that consists of 11 words. The parameter block format determines how the local buffer is specified and is selected by the MSB in the Operation word. The format can be Segment/Offset (MSB cleared) or Address (MSB set).

Service Request Execution

If a requested operation in Service Request 36 fails, the function block will not pass power flow. If the BMA is not configured or if the parameter block contains invalid parameters, a read or write operation will fail. Only invalid input parameters will cause the Get BMA Size operation to fail, in which case the function block will not pass power flow. If a read or write operation is requested and the BMA is unconfigured (that is, has a size of 0 in the PLC), the PLC will log an informational fault.

Read Bulk Memory
Command Block


1 ) Command

1 = read from
2 = write to
3 = get BMA size

2 ) PLC Memory Type

8 = R
0 = L
2 = P

3 & 4 ) PLC Mem offset

DP word PLC memory offset
0 based byte

5 ) Unused


6 ) Bulk memory type

196 = BMA (always 196)

7 & 8 ) BMA offset

DP word BMA memory offset

9 ) Unused


10 & 11 ) Length

byte length of read or write


Customer Questions and Answers

  • Question:  What is an IC697CPX935?  Answer:  The IC697CPX935 is a 96 MHz, 32-Bit, Floating Point, 1 Mbyte (fast) Memory Central Processing Unit from the GE Fanuc 90-70 Series. The IC697CPX935 is a single slot PLC CPU.  
  • Question:  Through what is configuration and programming done on IC697CPX935?  Answer:  Configuration and programming for this unit is done through MS-DOS or Windows based programming software. 
  • Question:  When testing IC697CPX935, what should I do?  Answer:  You want to, first, plug it in. Then, make sure it is connected and communicating. 
  • Question:  If it is connected and communicating, what should I do next?  Answer:  You should place the processor into run mode and clear ONLY I/O faults and processor faults. After, click download and run.
  • Question:  If all 3 LEDs are on, what does that mean?  Answer:  It means the processor is, in fact, in run mode.
  • Question:  What do the LEDs stand for?  Answer:  The first LED is the processor, the middle LED is the run mode, and the bottom LED is the I/O enabled.
  • Question:  What do I do with the toggle switch (that is below the LEDs)?  Answer:  This toggle switch can shut off the I/O or put it back into run mode and you should test it to make sure it works.
  • Question:  What does the key at the top of the processor do?  Answer:  This key is for memory protection. When you turn it on, a LED should come on to let you know your memory protection setting works. 
  • Question:  Are there any other tests I should perform?  Answer:  You should test all the ports to make sure they work. A LED should light up to let you know it is communicating/working. 
  • Question:  If I think there is a problem with my IC697CPX935- What should I do?  Answer:  If you think there is a problem, you should leave it running over night or over a weekend and make sure it stays in run mode. 
  • Question:  If my IC697CPX935 won't stay in run mode- What is my next step?  Answer:  Your IC697CPX935 might need repair

For more information on the IC697CPX935 96 MHz, 32-Bit, Floating Point, 1 Mbyte (fast) Memory Central Processing Unit of the GE Fanuc 90-70 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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Rockwell Disclaimer: The product is used surplus. PDF Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because PDF Supply is not an authorized distributor of this product, the Original Manufacturer’s warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, PDF Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. PDF Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. PDF Supply also makes no representations as to your right to install any such firmware on the product. PDF Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.