Rockwell Automation 1785-Lxxx Enhanced and Ethernet PLC-5 Programmable Controllers User Manual
Page 373
Publication 1785-UM012D-EN-P - July 2005
Index 3
I/O status file
main control programs
PII
pointtopoint
processorresident rack
remote I/O adapter channel
remote I/O scanner channel
serial port
startup procedure
STI
connections
Ethernet
control bits
controller documentation
controller specifications
controlling outputs
conversion instructions
cooling
counter instructions
D
daisy chain
data block
data file
addressing
range of values
read/write privileges
types of addressing
unused
data storage
bit
concepts
data block
files
member
structure
type
userdefined
words
data table
file defaults
memory per file
data transfer
blocktransfer
effects of blocktransfer on discrete data
extendedlocal I/O
I/O backplane transfer time
I/O transfer time
system design
types
data type
valid values
delay
due to online editing
density
I/O modules
design tip
addressing and placing extendedlocal I/O
addressing extendedlocal I/O racks
assigning privileges
assigning racks
assigning remote I/O rack numbers
blocktransfer programming
DH+ link design
editing the scan list for multiple
rackupdates
extendedlocal I/O link design
global status flag file
group data
guidelines for PIIs
guidelines for writing STI programs
optimizing instruction execution time
optimizing processor memory
organizing files
placing blocktransfer modules
placing extendedlocal I/O modules
program design tips
programming considerations for
extendedlocal I/O
remote I/O cable design
remote I/O link
RS232, 422A, and 423 cable lengths
split global status flags files across
channels
using blocktransfers in STIs
writing PII programs
devices
DH+ link
extendedlocal I/O
maximum
remote I/O
serial
DF1 master
communication
configuring
polling scheme