User guide
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8645 - 87
U_LOGIC_OK (U
l
)
U_SENSOR_OK (U
S
)
FAILURE_SELECT (FS)
FAILURE_NUMBER (FN)
U_DRIVER_OK (U
O
)
RIO_OK (RO)
RIO_FAULT (RF)
RIO (RO)
RIO (RF)
FS
FN
U
o
U
l
U
S
ON
OFF
OFF
OFF
ON
ON
ON
Illustration: Allocation of the LEDs on the RIO Module
RO green RIO OK RIO communication active
RF red RIO FAULT RIO fault
FS yellow FAILURE
SELECT
Defines the function of the LED FN:
FS lit: FN indicates the type of failure
FS not lit: FN indicates the failure number
FN red FAILURE
NUMBER
The number of flashing pulses indicates the failure type or failure
number, depending on the setting of FS.
U
i
green U Logic OK Voltage for logic supply,
inputs and bus interface OK
U
O
green U Driver OK Power supply for the outputs OK
U
S
green U Sensor OK Separate display of the voltage for the inputs
RIO (RO) OFF Response monitoring time on the RIO
module has expired.
The RIO module was not addressed
by the bus module.
Check the configuration and the RIO
cable.
RIO (RF) ON
FS OFF
FN OFF
U
i
ON
U
O
ON
U
S
ON