User manual

Index
I–3
eventdriven interrupts. See PIIs
executing, program state, 72
F
fault routines
as a programming feature, 71
blocktransfer data, 818
change from ladder logic, 79
defined, 73
enabling, 78
how to program, 76710
major fault bits, 74
major fault codes, 74
powerup protection, 710
program flow, 71
recover rack fault, 713
setting up, 78
startup, 710
testing, 78
when to use, 71
faulted, program state, 72
faults
detecting major, 711
processorresident local I/O rack
recovery, 712
processorresident local I/O rack, 711
remote I/O rack, 712
remote I/O rack recovery, 712
frontpanel, PLC5/10, 5/12, 5/15, 5/25
processors, 52
functional specification
checking for completeness, 15
content of, 14
definition, 13
detailed analysis, 15, 65
planning application programs, 61
program development, 15
G
grounding, remote I/O systems, 37
guidelines
adaptermodule selection, 24
addressing mode selection, 49
backup system hardware selection, 214
cable selection, 215
chassis selection, 26
complementary I/O addressing, 412
complementary I/O module selection,
213
datatransfer programming guidelines,
821
DH+ link application, 58
I/O point size selection, 22
I/O selection, 21
operator interface selection, 27
placing I/O modules
by electrical characteristics, 41
complementary, 412
power supply selection, 29
proper environment, 31
system design, 12
when to use interrupt routines, 71
when to use SFCs, 62
H
hardware placement, backpanel spacing,
36
I
I/O group, defined, 42
I/O housekeeping, 93
I/O image address, 69
I/O modules
blocktransfer module placement, 42
cable categories, 35
master/expander modules, 23
placement in chassis, 41
select point size, 22
selection guidelines, 21
I/O racks
defined, 43
processorresident local I/O, 410
relationship to chassis size and
addressing mode, 49
remote I/O, 410
immediate I/O, 95
indexed address, 69
indicators, PLC5/10, 5/12, 5/15, 5/25
processors, 52
indirect address, 69
instruction timing, 97, 101
interrupt routines. See STIs, PIIs, fault
routines, power up routines