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90
GFK-0827
Connecting Logicmaster 90, 31
Connector, serial port, 18
Connectors, battery, 17
Considerations, programming, 10
Considerations, redundancy CPU, 64
Constant sweep mode configuration, 35
Constant window sweep mode configura-
tion, 35
Contacts, timed, 70
Control actions, fault detection, 72
Control strategy, 5 , 58
CPU
features, 15
LEDs, 17
mode switch, 16
module for redundancy, 7
serial port connector, 18
watchdog timer, 14
CPU 780 operating differences, 65
CPU mode selection, 16
CPU requirements for redundancy, 33
D
Data integrity check, 2
Data parameters, shared I/O, 37
Data size, backup, 9
Data transfer
%I, %AI, and synchronization, 59
%Q, %AQ, %R, %M, 61
Data transfer example, backup to active
unit, 61
Data transfer, backup to active unit, 60
Definition of terms, 11
E
Error checking, 18
Expansion memory, 7 , 18 , 38
Expansion memory board, 39
F
Fail wait time, 8
Fail wait time configuration, 36
Failsafe operation, 2
Fault action, diagnostic fault action, 72
Fault actions
conditionally fatal, 77
configuration of, 67
fatal, 77
fatal fault action, 72
non-fatal, 77
table of, 77
Fault categories, 72
Fault category actions, changing, 73
Fault category configuration screens, 29
Fault detection, 72
Fault detection and control actions, 72
Fault group actions, maskable, 78
Fault group descriptions, maskable, 77
Fault group descriptions, non-maskable,
79
Fault zoom help text, redundancy error
codes, 74
Faulting RCMs, 75
Flash memory operation, 64
FST_EXE %S reference, 57
FST_SCN %S reference, 57
G
Genius blocks, configuration, 50
Genius blocks, failure, 83
Genius bus controller, 4 , 5
configuration, 28
configuration example, 48
configuration of, 42
connectors, 26
description of, 24
faults, 82
LED status indicators, 25
redund type, 34
switching, 71
user features, 25
Genius bus, faults, 83