Cpu features – State Industries FANUC GFK-0827 User Manual

Page 26

GFK-0827

Chapter 2 System Components

timer is 10 milliseconds to 1000 milliseconds. The default value for the watchdog timer is
200 milliseconds. The watchdog timer resets at the beginning of each sweep. The fail
wait time is included in the watchdog check. The watchdog timer should be set to allow
for the expected scan plus two fail wait times.

CPU Features

The CPU must reside in Slot 1 in rack 0, the main (CPU) rack. An illustration of the CPU
780 is shown in the following figure, followed by a description of the CPU features.

ОО

ООООО

ОО

OK
RUN
ENABLED

MEM PROTECT

CENTRAL

PROCESSOR

UNIT

ОО

A
T
T

ОО

MODULE
IC697CPU 780
LABEL
44A726758-130R03

SERIAL PORT

USE THIS MODULE

IN SLOT 1 ONLY

CPU 780

ОО

OFF

TOP

REMOTE PROGRAMMER

MODULE OK

RUN

OUTPUTS
ENABLED

FRONT

STOP

KEY POSITION

MODULE FUNCTION

16MHz 32 BIT CENTRAL
PROCESSING UNIT

BATTERY
CONNECTORS

INSTALL NEW
BATTERY BEFORE
UNPLUGGING OLD
BATTERY. USE
IC697ACC701

MEMORY PROTECT

REMOTE

PROGRAMMER
ONLY

RS-485
COMPATIBLE

RUN WITH

OUTPUTS
ENABLED

RUN WITH
OUTPUTS
DISABLED

ON = OK, ENABLED

PROTECTED

WITH FLOATING POINT
MATH COPROCESSOR

FOR HOT STANDBY
CPU APPLICATIONS

OPEN

REPLACEMENT

BATTERY

CONNECTOR

EXPANSION

MEMORY

BOARD

IC697MEM731
IC697MEM732
IC697MEM733
IC697MEM735

CURRENTLY

INSTALLED

BATTERY

CONNECTOR

MEMORY

PROTECT

KEY

SWITCH

SERIAL PORT

RS-485
COMPATIBLE

CPU
STATUS
LEDS

CPU MODE
SWITCH

a47003

Figure 4. Redundancy CPU - IC697CPU 780