Rockwell Automation 1785 PLC-5 User Manual download pdf (Page 378)

Publication 1785-UM012D-EN-P - July 2005

8 Index

polling

schemes

10-16

techniques 10-4

power supplies

mounting dimensions

3-6

powerup routines 13-10, 13-11, 14-1,

14-3

priority scheduling 13-11

privilege class

assigned to channel

12-4

assigned to node 12-4

assigned to offline file 12-4

privileges

assigning class to channels

12-4

assigning class to offline files 12-4

assigning to data files 12-5

assigning to program files 12-5

defining classes 12-3

guidelines for assigning 12-3

types of 12-2

process control instructions D-25

Processor

specifications

A-1

processor input interrupt 8-4, 18-1

processor status file

layout

B-1

processor time

data exchange

C-11

example C-12

processorresident I/O 6-20, 13-2, 15-3

Program (PROG) mode 1-9

program constant

valid value range

4-15

program control instructions D-22

program execution 1-9, 13-12

program file

memory

4-15

read/write privileges 12-5

storage 4-15

program scan

activities that can affect the time

C-1

effect of housekeeping C-4

false versus true logic C-2

input states C-2

instructions C-3

introduction 5-2

MCP 16-5

using interrupts C-3

program states 13-12

programming

blocktransfers to an adapter channel

7-10

considerations 13-1

design tips for better performance C-13

effects of blocktransfers on discrete data

7-15

extendedlocal I/O 8-8

fault routines 15-6

features 1-10

handling faults in remote I/O chassis

15-4

multiple blocktransfers in an adapter

channel

7-13

protecting 12-1

recover from rack fault 15-10

terminal connections G-5

protecting programs 12-1

R

raceway layout 3-4

rack addressing limits A-2

rack control bits

racks 07

B-10

racks 1017 B-10

rack entries, how they affect scan time

C-7

rack size

extendedlocal I/O scanner

8-9

remote I/O scanner 6-9

racks

addressing

8-10

definition 4-1

extendedlocal I/O 8-3

processorresident local I/O 4-8

relationship to chassis size and

addressing mode

4-8

remote I/O 4-9

read/write privileges

assigned to data file

12-5

assigned to program file 12-5

ready

program state

13-12

relative humidity 3-1

relay cartridge 1-1

relay instructions D-2

Remote (REM) mode 1-9

remote I/O

adapter mode

7-2

adaptermode status 7-19

blocktransfers 6-13, 6-15

cable lengths 6-5

calculating scan time C-9

chassis backplane switch setting E-5

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