IC697CPM790 GE System modules are selected with confidence

IC697CPM790 GE System modules are selected with confidence

IC697CPM790 GE System modules are selected with confidence

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Features

Single slot CPU

Provides 1 Mbyte of battery-backed memory in the

same slot (up to 512 Kbytes available for use by

ladder diagram application program)

Supports floating point calculations

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

0.4 microseconds per boolean function

64 MHz, 80486DX2 microprocessor

Supports IC660/IC661 I/O (and IC697 I/O in simplex mode only)

Programmed by MS-DOS, or Windows software

products running on Windows 95 or Windows

NT over Ethernet TCP/IP or through the SNP

port.

Configurable data and program memory

Battery-backed calendar clock

Three position operation mode switch

Password controlled access

Remote programmer keyswitch memory

protection

Four status LEDs

Software configuration (No DIP switches

or jumpers)

Reference information inside front door

In-system upgradable firmware

Functions

The CPM 790 is a single slot programmable controller

CPU which allows floating point calculations. The CPM

790 is programmed and configured with MS-DOS or

Windows based programming software for use in

Emergency Shut-Down (ESD), fire and gas, and other

critical control applications. It communicates with I/O

and smart option modules over the rack mounted

backplane (IC697CHS750, 782, 783, 790, 791) by way of

the VME C.1 Standard format.

The CPM 790 must be used in conjunction with a

Standalone C program which provides Triple Modular

Redundancy (TMR) operating and autotest routines. It

will not operate unless this program is included in the

loaded application program.

The IC697 CPU and I/O system is configured with

MS-DOS or Windows based programming software.

There are no DIP switches or jumpers used to

configure the system. The CPU verifies the actual

module and rack configuration at power-up and

periodically during operation. The actual

configuration must be the same as the programmed

configuration. Deviations are reported to the CPU

alarm processor function for configured fault

response. Consult Reference 1 for a description of

configuration functions.

Battery

A lithium battery (IC697ACC701) is installed as shown

in Figure 2. This battery maintains program and data

memory when power is removed and operates the

calendar clock. Be sure to install the new battery

before removing the old battery. If during power-up

diagnostics a low battery is detected, the MODULE

OK LED (top LED) will not stay on. Specific

indication of a low battery state is detailed in

Reference 2.