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IC697CPX928 Wiring

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  • IC697CPX928
  • IC697CPX928 Wiring

Product Description

The IC697CPX928 is a Programmable Logic Controller manufactured by GE Automation and Controls.
It is designed to fit into a single rack slot and comes with three built-in serial ports. A backplane mounted on the rack allows this device to communicate with several different modules. A run/stop control switch with three positions or specific software running from an attached computer is used to control the IC697CPX928. Seven on-board LED lights display operational status.


Features of this device include a 96MHz 80486DX4 microprocessor, floating point calculations, processor speeds of 0.4 microseconds for each Boolean function, 8K analog I/O, and 12K I/O of any mix. The IC697CPX928 supports several modules, including IC697 LAN interface modules and various display, coprocessor, communications, and link interface modules. IC660/61 bus controllers and IC697 discrete and analog I/O modules are also compatible with this device.


To program this device, connect it to a computer loaded with MS-DOS, Windows 95, or Windows NT. This connection is possible by way of a serial, parallel, or Ethernet interface. For Ethernet connections to the programming computer, special hardware is required. As the IC697CPX928 is programmed via software, hardware setup with DIP switches and jumpers is not required. Device configuration settings can be protected digitally via a password and physically by a keyswitch.


The IC697CPX928 provides six megabytes of user and program data memory. This memory is maintained by a lithium CMOS battery. Up to 256 kilobytes of optional flash memory (NVRAM) is also supported. Operating system firmware is stored in flash memory. Device disassembly or EPROM replacement is not required to update firmware.


In environments where temperatures reach 122 degrees Fahrenheit (50 Celsius), a fan capable of 70 cubic feet per minute (CFM) is required to prevent overheating.


The product manual contains detailed guidelines for installing the IC697CPX928. Rack power should be off before installing. The operation control switch should be in the stop position. The memory protection keyswitch should be in the off position. Place the CMOS battery into one of the battery connection slots. Insert the device into the rack and resume 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



GE Fanuc GE Fanuc Series 90-70

SKU 2170243  UPC 0709487875728

Part Number: IC697CPX928 / ic697cpx928
Mfr/Brand Name: GE Automation
Mfr Number: IC697CPX928 / ic697cpx928
Type: 96 MHz, 32-Bit Floating Point CPU Module

Troubleshooting and Product Information for IC697CPX928

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

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Other IC697CPX928

Available Revisions:

1C697CPX928 , GEFIC697CPX928 , CIMIC697CPX928



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 IC697CPX928

Troubleshooting information is available on IC697CPX928's website page; it also includes a datasheet user-manual and a wiring diagram.

Repair your IC697CPX928

PDF Supply can repair your IC697CPX928 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 IC697CPX928?  Answer:  The IC697CPX928 is a 96 MHz, 32-Bit, Floating Point, 6 Mbyte (medium) Memory Central Processing Unit from the GE Fanuc 90-70 Series. The IC697CPX928 is a single slot PLC CPU. 
  • Question:  Through what is configuration and programming done on IC697CPX928?  Answer:  Configuration and programming for this unit is done through MS-DOS or Windows based programming software. 
  • Question:  When testing IC697CPX928, 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 IC697CPX928- 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 IC697CPX928 won't stay in run mode- What is my next step?  Answer:  Your IC697CPX928 might need repairing

For more information on the IC697CPX928 96 MHz, 32-Bit, Floating Point, 6 Mbyte (medium) Memory Central Processing Unit of the GE Fanuc 90-70 Series, please see the Datasheet User-Manual. 


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