Index
148
cyclic refreshing, 15
cyclic scan, 12
D
data
automatic backup, xvi
backing up, xvi–xvii
exchanging with CPU Unit, 3, 10, 11, 41–54
tracing, 36
data exchange areas, overview, 42
debugging, 15
Differential Monitor Completion Flag, 75
differential monitoring, 15
dimensions, 12
display, 11
DM Area
allocation, 13
backing up to flash memory, xvii
details, 69–70
precautions, xv
read/write words, 69
read-only words, 69
Unit Setup Area, 69
words allocated to Special I/O Units, 10
words shared with user-set words in Unit, 3
words used as I/O memory, 65
DM Area to Flash Memory Transfer Bit, 75
E
EC Directives, xviii–xix
editing, online, 15
electric shock, xii–xiii
Electronic Cam Mode, 3, 4
EM Area
allocation, 13
and faster execution of instructions, 3
details, 70–88
emergency stop circuits, 38
encoder outputs, 4
Equals (EQ) Flag, 76
error codes, 128
Special I/O Units, 129
error log, 16, 135
details, 128–130
reading, 36, 144
Error Log Area
allocation, 14
details, 69
Error Log Reset Bit, 75
execution modes, 12
Expansion Racks, 24
external interrupt tasks, using MCRO, 4
F
fail-safe circuits, 38
FAL(06), 135
FALS(07), 135
precaution for, xiii
First Cycle Flag, 75
flags
AR Area, 77, 82
SR Area, 75
flash memory
backing up DM Area, xvii
data contents, 11
precautions, 111
forced set/reset, 16, 36
precautions, xv
frequency outputs, 3
functions, overview diagram, 90
G
general precautions, xii
general-purpose I/O words, 52
Greater Than (GR) Flag, 76
ground terminals, precautions, xiv
H
Hand-held Programming Consoles, 35
High-speed Counter Operating Flag, 78, 79
High-speed Counter Reset Bit, 80, 81
High-speed Counter Start Bit, 78, 80, 81
High-speed Counter Units, 2
high-speed counters, 2, 4
and control bit status, 3
clearing or holding PV, 3
commands, 80, 81
frequency, 77
input frequency measurements, 3
interrupts, 2, 91
measurement data, 77
monitor data, 81
PV, 77
PV at startup, 60
rate-of-change measurement, 60
status, 78
High-speed Execution Mode, 3, 115
high-speed interrupt I/O processing, used for refreshing out-
puts, 4
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