User manual

Index
I–6
chassis backplane, with PLC5 processor,
A1
chassis configuration plug, for power
supply, A3
SW1 for PLC5/10, 5/12, 5/15, 5/25
processor, for adaptermode
processor, in PLC2/20 system, A9
SW1 for PLC5/10, 5/12, 5/15, 5/25
processors
for adaptermode processor
in PLC5 system, A8
in PLC2/30 system, A9
in PLC3 system 4word groups,
A11
in PLC3 system 8word groups,
A10
in PLC5/250 system 4word groups,
A11
in PLC5/250 system 8word groups,
A10
in scannermode system, A8
in sub I/O scannermodule system,
A9
in VME system, A8
for DH+ and adapter/scanner mode,
A7
SW3 for PLC5/10, 5/12, 5/15, 5/25
processors, terminate link, A12
symbolic address, 69
system layout
backpanel, 36
environment, 31
protecting processor, 34
T
terminate link, switch setting SW3,
PLC5/10, 5/12, 5/15, 5/25
processors, A12
throughput
calculating, 106
components of, 101
defined, 101
I/O backplane transfer time, 102
I/O transfer time, 101
processor scan time, 106
remote I/O scan time, 102
timedriven interrupts. See STIs
timing
See also throughput
blocktransfer data
during logic scan, 95
to processorresident I/O, 96
to remote I/O, 96
calculating, 106
direct elements, PLC5/10, 5/12, 5/15,
5/25 processors, 913
discretetransfer data
during I/O scan, 95
to processorresident I/O, 94
to remote I/O, 94
I/O scan, 93
indirect elements, PLC5/10, 5/12, 5/15,
5/25 processors, 913
instruction, bit and word for PLC5/10,
5/12, 5/15, 5/25 processors, 98
instructions, 101
program constants, 913
program scan, 91
I/O scan housekeeping, 91
immediate I/O, 95
transmission rates, DH+ link, 54
trunkline/dropline connection, DH+ link,
58
U
understanding terms
blocktransfer data, 11
discretetransfer data, 11
processorresident local I/O chassis, 11
processorresident local I/O, 11
remote I/O chassis, 11
remote I/O link, 11
W
waiting, program state, 72