3 Product Description X-DO 32 01
Page 16 of 52 HI 801 097 E Rev. 4.00
3.4.4 System Bus Indicators
The system bus LEDs are labeled Sys Bus.
LED Color Status Description
On
Physical and logical connection to the system bus
module in slot 1.
Green
Blinking1
No physical connection to the system bus module in
slot 1.
A
Yellow Blinking1
The physical connection to the system bus module
in slot 1 has been established.
No connection to a (redundant) processor module
running in system operation.
On
Physical and logical connection to the system bus
module in slot 2.
Green
Blinking1
No physical connection to the system bus module in
slot 2.
B
Yellow Blinking1
The physical connection to the system bus module
in slot 2 has been established.
No connection to a (redundant) processor module
running in system operation.
A+B Off Off
Neither physical nor logical connection to the
system bus modules in slot 1 and slot 2.
Table 5: System Bus Indicators
3.4.5 I/O Indicators
The LEDs of the I/O indicators are labeled Channel.
LED Color Status Description
On The related channel is active (energized).
Blinking2 Channel fault
Channel
1…32
Yellow
Off The related channel is inactive (de-energized).
Blinking2
Field fault on at least one channel, e.g., short-
circuit, etc.
Field Red
Off No field fault displayed!
Table 6: I/O LEDs
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