PRODUCT INFORMATION
Product Overview
The General Electric IC697CPM790 Series 90-70 CPU is a single-slot central processing unit designed for critical control architectures. It incorporates a 64 MHz 80486DX2 microprocessor. The module delivers a Boolean execution speed of 0.4 microseconds per function. Total battery-backed memory equals 1 Mbyte, with up to 512 Kbytes allocated for ladder diagram application programs. The processor requires a loaded Standalone C program to execute system operations, autotest routines, and redundancy functions.
This CPU supports Triple Modular Redundancy configurations to eliminate single points of failure across critical systems. A typical architecture uses three PLC racks, triple Genius I/O buses, triple sensors, and triple output loads. For simplex operations, the unit manages up to 12000 discrete inputs and outputs in any mix. In voted architectures, it handles up to 2048 voted discrete inputs and 2048 voted discrete outputs. It also supports 1024 voted analog inputs.
TECHNICAL DATA
Technical Specifications
| Parameter | Specification |
|---|
| Weight | 2.75 lbs (1.25 kg) |
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| Number of Installation Slots | 1 |
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| Number of LEDs | 4 |
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| Configurable Program and Data Memory | Supported |
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| Specialty function | Triple Modular Redundancy (TMR) |
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| Microprocessor | 64 MHz, 80486DX2 microprocessor |
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| Boolean execution | 0.4 microseconds per boolean function |
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| Supported I/O | Up to 12K discrete inputs and outputs (any mix -simplex mode only); 2048 voted discrete inputs, 2048 voted discrete outputs; Up to 8K analog inputs (simplex mode only) and 8K analog outputs (simplex mode only); 1024 voted analog inputs |
|---|
| Memory | 1 Mbyte of battery-backed memory in the same slot (up to 512 Kbytes available for use by ladder diagram application program) |
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| Communication Port | One (1) 15-pin sub-D connector |
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| Serial protocol support | RS485 |
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| Applications | Emergency Shutdown, Fire, Gas and other critical application |
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| Communication Route | Through the Backplane |
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| Emergency Shutdown Functions | Supported |
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| Standalone C Program | Required |
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TECHNICAL INFORMATION
Features
- Powered by a 64 MHz 80486DX2 microprocessor
- Boolean execution rate of 0.4 microseconds per boolean function
- Provides 1 Mbyte battery-backed memory with 512 Kbytes for ladder logic
- Supports Triple Modular Redundancy (TMR) architectures
- Manages up to 12K discrete inputs and outputs in simplex mode
- Supports 2048 voted discrete inputs and 2048 voted discrete outputs
- Handles up to 8K simplex analog I/O points and 1024 voted analog inputs
- Front panel includes 4 status indicator LEDs and 3-position mode switch
- Integrated battery-backed calendar clock and password security control
- Requires a Standalone C program for autotest and operational routines
TECHNICAL INFORMATION
Applications
- Emergency Shutdown (ESD) systems
- Fire and gas detection systems
- High-availability safety-critical industrial processes
TECHNICAL INFORMATION
Connections / Interfaces
- Equipped with one 15-pin sub-D serial port supporting RS485 communication.
- Communicates with I/O and intelligent option modules over the rack backplane.
- Compatible with IC690ACC900 and IC690ACC901 serial converters for programming PC connections.
TECHNICAL INFORMATION
Installation Guidelines
- Installs into a single slot of a Series 90-70 rack chassis.
- Seat the module firmly into the backplane connectors before engaging power.
- Tighten top and bottom mounting screws to secure the unit.
TECHNICAL INFORMATION
Configuration Guidelines
- Configured and programmed using compatible Windows or MS-DOS software packages.
- Requires inclusion of a Standalone C program in the application code.
- Operational states are controlled via the 3-position front switch.
- Configure I/O mapping for either simplex or triple modular redundancy modes.
PART VERIFICATION
Before You Order
Industrial automation parts can share similar model names, suffixes and revisions. Confirm the complete manufacturer Part Number before purchase.
01Check Part NumberMatch the complete ordering code on the existing unit.
02Confirm RevisionCheck suffix, hardware or firmware when applicable.
03Send a Label PhotoWe can review a clear label photo when identification is uncertain.
ORDERING PROCESS
From RFQ to Dispatch
1Submit Part Number2Verify Product Identity3Confirm Stock & Condition4Issue Quotation5Dispatch & Tracking
PRODUCT FAQ
Frequently Asked Questions
Does the IC697CPM790 CPU require a Standalone C program to run?
Yes. The module cannot operate without a Standalone C program loaded as part of its application program.
How many voted I/O points does the IC697CPM790 support?
It supports 2048 voted discrete inputs, 2048 voted discrete outputs, and 1024 voted analog inputs.
What serial communication port is built into the IC697CPM790?
The module features one 15-pin sub-D serial port supporting RS485 communication.
