ABB S800 I/O User Manual page 51

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The CI820 FCI has indicators for FAULT, RUN, POWER OK, one for each fieldbus
communication cable and status of redundant communications. For color and
functions see
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F (Fault)
R (Run)
P (Power OK)
T1 (Traffic 1)
T2 (Traffic 2)
PR
DU
(1) The F-LED will switch on at power up, restart of the module or when the module goes to Error state.
At start-up the module will do a self test, if the self test has gone OK the module will switch off the
F-LED.
3BSE 020 925R101
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Table 5-2. and the for the location see
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Red
Green
Green
Yellow
Yellow
Yellow
Green
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Figure
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(1)
Fault in the module
Operational state
Internal power OK
Traffic on AF 100 cable 1
Traffic on AF 100 cable 2
Indicates Primary FCI
Dual; configured for redundancy, other FCI OK
F R
P
T1 T2
PR DU
CI820 FCI Status LEDs Location
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5-2.
LED Status
Indicators
47