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SKU 2173000  UPC 0401515645333

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Technical Specifications for IC693CPU372

ManufacturerGE Fanuc
SeriesSeries 90-30
Part NumberIC693CPU372
Product TypeCPU
User Logic Memory120 Kilobytes
Real-Time ClockSupported
Discrete I/O Points4096
Analog I/O Points2048 Inputs, 512 Outputs
Type of Memory StorageRAM, Flash
Software Programming SupportProficy Logic Developer: Machine Edition

Product Description

The GE Fanuc IC693CPU372 is a TCP/IP Ethernet Communications module. Like the CPU374 model, this module is designed to work with the Series 90-30 system. The IC693CPU372 Plus enables TCP/IP communications with a range of devices and controllers through its built-in enhanced Ethernet interface. This includes all Series 90, PACSystems, and VersaMax PLCs as well as host computers running the Host Communications Toolkit or CIMPLICITY software. It can also communicate with computers running the TCP/IP version of the programming software. Its Ethernet processor speed is 200 MHz. This Ethernet interface also has SRTP server capability. This enables it to respond to requests from devices such as PLC programming software, a Host computer that is running an SRTP application, or else another PLC acting as a client.

The embedded Ethernet interface in this module can be joined by a maximum of three Series 90-30 Ethernet Modules – all can be installed together in the Series 90-30 PLC backplane. The CPU372 PLUS has a number of Ethernet features that make it a flexible and powerful component, such as full PLC programming and configuration services and the ability to let users operate it through remote PLC monitoring from a web browser. The interface has two auto-sensing 10Base T / 100Base TX RJ-45 shielded twisted pair Ethernet ports. These allow the user to connect it to either a 100BaseTX IEEE 802.3 network or a 10BaseT network. Each of the two ports automatically sense the speed, duplex mode and cable attached to it with no user intervention required. On the front panel there is an ON/OFF switch, eight LEDs, the Ethernet Restart button, two Ethernet port connectors and a connector to enable the Station Manager function.

Technical Specifications

Processor Speed : 133 MHz
I/O Points : 2048
Register Memory : 240KBytes
Floating Point Math:  Yes
32 BIT system  
Processor: 80386EX


The IC693CPU372 Central Processing Unit belongs to GE Fanuc Series 90-30 line of CPUs. It is a single-slot CPU module with an embedded Ethernet interface. It is based on a 386EX processor that can provide fast computation and increased functionality. The IC693CPU372 Central Processing Unit can handle up to 4096 I/O discrete points, 2048 analog input points, and 512 analog output points. This module is compatible with a range of field busses and device networks such as the Genius, Profibus-DP, DeviceNet, Interbus-S, and CsCAN networks. Its internal power requirement is 1.4 Amps at 5 Volts DC. It has 0.15 microseconds of rated execution time per Boolean instruction.  


The IC693CPU372 Central Processing Unit is embedded into the backplane. It has built-in 10/100 Mbps Ethernet ports, one RS-485 port, an STRP channel, and web diagnostic facilities. This CPU module supports a variety of communication option modules including the Serial-SNP, SNPX, RTU and CCM, LAN-Genius, and Ethernet Modbus TCP Client/Server modules. It comes with a battery-backed clock. It does not support a hand-held programmer module. The type of memory storage available in this IC693CPU372 module is RAM or Flash memory. Its processor speed is 133 megahertz and the processor is an AMD SC520 processor. There are 8 total baseplates per system with 1 CPU baseplate and 7 expansion baseplates. It has communication and programmable coprocessor compatibility. The configuration and programming of the CPU module can be done through the Proficy Machine Edition Logic Developer software package. The CPU supports hardware floating-point math and can be used for entry-level applications with low I/O counts.

Technical Information


Controller Type

Single slot CPU module with embedded Ethernet Interface



Processor Speed

133 MHz

Processor Type


Execution Time (Boolean Operation)

0.15 msec per Boolean instruction

Type of Memory Storage

RAM and Flash



User Memory (total)


Note: Actual size of available user program memory depends on the amounts configured for %R,

%AI, and %AQ word memory types.

Discrete Input Points - %I

2,048 (fixed)

Discrete Output Points - %Q

2,048 (fixed)

Discrete Global Memory - %G

1,280 bits (fixed)

Internal Coils - %M

4,096 bits (fixed)

Output (Temporary) Coils - %T

256 bits (fixed)

System Status References - %S

128 bits (%S, %SA, %SB, %SC - 32 bits each) (fixed)

Register Memory - %R

Configurable 128 to 32,640 words

Analog Inputs - %AI

Configurable 128 to 32,640 words

Analog Outputs - %AQ

Configurable 128 to 32,640 words

System Registers - %SR

28 words (fixed)


>2,000 (depends on available user memory)

Hardware Support


Battery Backed Clock


Battery Back Up (Number of months with no power)

1.2 months for internal battery (installed in the power supply) 15 months with external battery (IC693ACC302)

Load Required from Power Supply

7.4 watts of 5VDC. High Capacity power supply required.

Hand Held Programmer

CPU372 does not support Hand Held Programmer

Program Store Devices supported

PLC Program Download Device (PPDD) and EZ Program Store Device

Total Baseplates per System

8 (CPU baseplate + 7 expansion and/or remote)

Software Support


Interrupt Support

Supports the periodic subroutine feature.

Communications and Programmable Coprocessor Compatibility




Floating Point Math

Yes, hardware floating point math

Communications Support


Built-in Serial Ports

No serial ports on CPU372. Supports RS-485 port on power supply.

Protocol Support

SNP and SNPX on power supply RS-485 port

Built-in Ethernet Communications

Ethernet (built-in) – 10/100 base-T/TX Ethernet Switch

Number of Ethernet Ports

Two, both are 10/100baseT/TX ports with auto sensing. RJ-45 connection

Number of IP Addresses



SRTP and Ethernet Global Data (EGD) and channels (producer and consumer); Modbus/TCP Client/Server

EGD Class II Functionality (EGD Commands)

Supports acknowledged single command transfers (sometimes referred to as “datagrams”) and Reliable Data Service (RDS – a delivery mechanism to make sure a command message gets through once and only once).

SRTP Channels

Up to 16 SRTP Channels

Up to 36 SRTP/TCP connections total, consisting of up to 20 SRTP Server connections and up to 16 Client Channels.

Web Server Support

Provides basic Reference Table, PLC Fault Table, and IO Fault Table data monitoring over the Ethernet network from a standard web browser


Troubleshooting IC693CPU372

Troubleshooting information is available on IC693CPU372's website page; it also includes a datasheet user-manual and a wiring diagram.  

Repair your IC693CPU372

PDF Supply can repair your IC693CPU372 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 IC693CPU372?  Answer:  The IC693CPU372 is a single-slot Central Processing Unit with an embedded Ethernet Interface. This unit is the "brains" of the PLC and is where most of the calculations take place.
  • Question:  What is the processor speed for IC693CPU372?  Answer:  133 MHz
  • Question:  What is the total user memory for IC693CPU372?  Answer:  120KB
  • Question:  Is there anything recommended for this processor?  Answer:  Yes, because the built-in battery is limited to 1.2 months of continuous power outage, an IC693ACC302 external battery is recommended. 
  • Question:  Are there built-in serial ports on IC693CPU372?  Answer:  No.
  • Question:  Does IC693CPU372 support the Hand Held Programmer?  Answer:  No.
  • Question:  What power supply does IC693CPU372 require?  Answer:  IC693CPU372 requires a high capacity power supply.
  • Question:  What should I do if my IC693CPU372 is not working?  Answer:  Your product may need repair

For more information on the IC693CPU372 Central Processing Unit of the GE 90-30 Series, please see the Datasheet Manual. 




Firmware Versions








Jul. 2013




May 2012








Feb. 2012








Mar. 2010




Sep. 2009




May 2009




Jan 2008




Sep 2007

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

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