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Status Indicators
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Fieldbus Dependent I/O Module
PROFIBUS DP
6.2 Output Status Indicators
The output status LED’s display the actual state of each output. They will not
be illuminated in the event of a short circuit at the output or a missing supply
voltage to the output drivers.
Output value of the higher ranking
controls
Fault
LED
‘1’
None
ON
‘0’
None
OFF
‘1’
Short circuit
OFF
‘0’
Short circuit
OFF
‘1’
No supply
OFF
‘0’
No supply
OFF
‘1‘ = Output switched on
‘0‘ = Output switched off
6.3 Fieldbus Interface Status Indicators
LED
Color
Status
Meaning
RUN
Operational
Green
ON
OFF
The supply voltage is within the tolerance range,
the equipment is operative
Equipment not operative, insufficient supply
voltage
BF
Bus Failure
Red
ON
OFF
The watchdog of the station has detected a time-
out in the communication with the
PROFIBUS DP master
or
the station has not yet been parameterized and
configurized by the master.
The data is being transmitted between the station
and the PROFIBUS DP master.