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IC697CPU788 Wiring

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  • IC697CPU788
  • IC697CPU788 Wiring

Product Description

The IC697CPU788 is a 32-bit Programmable Logic Controller intended for use in critical IC660/661 environments where an emergency shutdown may be necessary.
When used with C program blocks, the IC697CPU788 is capable of supporting Triple Modular Redundancy (TMR). There are two methods to operate this device: The run/stop switch or a connected computer loaded with the correct software.


“Smart option” and I/O modules such as IC697 LAN and I/O link interface modules, alphanumeric display modules, bus controllers for IC660 and IC661 devices, and IC697 discrete and analog modules are all supported. Note: IC697 I/O modules must be in simplex mode. To facilitate communication with these modules, the IC697CPU788 uses a backplane mounted to the rack.


Other features of this device include a 16MHz microprocessor, processor speeds of 0.4 microseconds for each Boolean function, 8K analog I/O (simplex mode), 352 discrete I/O (simplex mode), 112 voted discrete inputs, 80 voted discrete outputs, and 1024 voted analog inputs. Data storage for the IC697CPU788 is provided by an attached memory expansion board. A CMOS battery supports 512 kilobytes of memory, 200 kilobytes of which is allotted for program data.


Configuration for this device is done via software from a computer. Jumpers and DIP switches are not needed. A computer running MS-DOS is used to program the IC697CPU788. Programming and setup is also possible with Windows 95/NT. A serial or parallel connection is used for programming, and if special hardware is installed, an Ethernet interface is also a possibility. For security reasons, configuration data is protected by passwords and a physical protection switch built into the device.


Follow the directions found in the manual during installation. Before installing, remove the power source from the rack. Turn off the configuration protect switch and move the operation control switch to the stop position. Insert the lithium battery. Attach the memory board using a Phillips screwdriver. Connect the IC697CPU788 to the rack, and restore power.

Technical Specifications

Module Type: Expandable CPU (Triple Redundancy)
Number of Slots: 1 (Single slot)
Current Required: 1.6 Amps
Number of Points:   352 discrete inputs and outputs (any mix)
Serial Ports: One
Supports: IC660/IC661 I/O and IC697 I/O



GE Fanuc GE Fanuc Series 90-70

SKU 2174038  UPC 0799705792760

Part Number: IC697CPU788 / ic697cpu788
Mfr/Brand Name: GE Automation
Mfr Number: IC697CPU788 / ic697cpu788
Type: Expandable Central Processing Unit Module

Troubleshooting and Product Information for IC697CPU788

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

Reman IC697CPU788
Price: $1,995
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Repair Your IC697CPU788
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Other IC697CPU788

Available Revisions:

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1C697CPU788 , GEFIC697CPU788 , CIMIC697CPU788




Shelf life

Memory retention


10 years at 20  C  (68 F)

6 months nominal without applied power.

Current required from 5V bus

1.6 Amps (includes expansion memory board)

Time of Day Clock accuracy

Elapsed Time Clock (internal timing) accuracy

"    3.5 seconds per day maximum

"    .01% maximum

Serial Port

RS422/485 compatible


Programmer Serial Attachment


System designed to support the VME standard C.1


Troubleshooting IC697CPU788

Troubleshooting information is available on IC697CPU788's website page; it also includes a datasheet user-manual and a wiring diagram.

Repair your IC697CPU788

PDF Supply can repair your IC697CPU788 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 IC697CPU788?  Answer:  The IC697CPU788 is a 16 MHz, 32-Bit, Expandable Central Processing Unit for IC66* Triple Modular Redundancy Systems from the GE Fanuc 90-70 Series. 
  • Question:  What will I need to test my IC697CPU788?  Answer:  You will need your IC697CPU788, a slot rack, and a power supply.
  • Question:  If the top LED is not on or is blinking when I test my processor- What does that mean?  Answer:  It means you definitely have something wrong with your processor.
  • Question:  How do I test the port that is on IC697CPU788?  Answer:  Go into Proficy Machine Edition, clear the controller fault table and/or the I/O fault table- nothing else. Then, click download and run. You want to download hardware, configuration, and logic. The only thing you are trying to do is get the processor into run mode.
  • Question:  What does each LED indicate?  Answer:  The top LED is the OK LED, the middle LED is the run enabled LED, and the bottom LED is the I/O enabled LED. 
  • Question:  What else should I test on IC697CPU788?  Answer:  You should test the toggle switch (that is under the LEDs). This toggle switch turns off the LEDs and you should simply make sure it works by flipping it on and off. 
  • Question:  What if I think there is a problem with my processor?  Answer:  You should leave it in run mode over night or over a weekend to check and see if it will stay in run mode. 
  • Question:  What if my IC697CPU788 won't stay in run mode?  Answer:  Then your IC697CPU788 may need to be repaired

For more information on the IC697CPU788 16 MHz, 32-Bit, Expandable Central Processing Unit of the GE Fanuc 90-70 Series, please see the Datasheet User-Manual. 


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What is New Surplus?

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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What is Reconditioned?

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.

Our Reconditioned Products always come with a PDF Supply 2-Year Warranty.

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What is a Verified Substitute?

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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Download Lastest Documentation

Please visit this manufacturer's website to download the lastest manuals and datasheets.

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We stand behind our prices with a lowest price guarantee. If you find a legacy GE PLC part advertised for less on an authorized GE PLC distributor website, simply contact us and send us a link to the lower advertised price. We will match that price and ship overnight FREE. The item must be in stock, in similar condition and be able to ship same day.

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