Index
Genius bus, multiple, 26
GeniusI/O, bus controller, 24
Genius I/O system, 4
Grounding, programmer, 9
Guidelines for run disabled mode, 66
H
Help text, redundancy error codes, 74
Hot standby CPU redundancy, 85
Hot standby cpu redundancy basic description of, 1 benefits of, 3
features of, 3 I/Osystems
geniusI/O, 4 localI/O, 4
system configuration, 6
Hot standby redundancy control strategy, 58
I
I/O bus signal termination, 24
I/O bus terminator plug, 24
I/O system configuration, 28
Incompatible configurations, 56
K
Keyswitch, memory protect, 17
L
LEDs for redundancy communications module, 7
Link failure, communications, 82
Links, losing, 75
Lithium battery for memory backup, 18
Local I/O configuration, example of, 5
Local I/O system, 4
Lockstep of active and standby units, 2
Logicmaster 90 configuration, require- ments, 28
Logicmaster 90 connection, 31
Logicmaster, serial COM port version, 18
Logicmaster, WSI version, 18
Losing links, 75
M
Maskable fault group actions, 78
Maskable fault group descriptions, 77
Memory protect keyswitch, 17
Memory, expansion, 18 , 39
Memory, flash, 64
Mode selection, 16
Mode, operating, 16
Mode, run disabled, 65
N
Normal sweep mode configuration, 34
Normal system operation, 55
O
genius bus controller, 82 power supply, 81 procedures, 80
racks, 81 recommendations, 80 redundancy communications module,
81
terminated parallel bus cable, 81
Operating mode, selection of, 16
Operating modes, valid run w/ outputs enabled, 16 run w/outputs disabled, 16 stop, 16
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