D3-DU 3xx/A, /BDisplays and operating elements
Project engineering manual V1.09
38
© KEBA 2021
PROFINET IO
Fig.4-16: RT Ethernet slave interface LEDs
1 ... Link LED 2 ... RX/TX LED
3 ... Status LED (SF-LED) 4 ... Error LED (BF-LED)
Link LED
Display Meaning
Dark No connection
Green Connection established
RX/TX LED
Display Meaning
Dark No data exchange
Flashing yellow Data is being exchanged
The SE LED (system error LED) indicates the status of the device.
SE LED
Display Meaning
Dark No error has occurred
Red Error within the PROFINET IO device
The SE LED is also used for PROFINET IO device signaling (DCP signal).
The BE LED (bus error LED) indicates the status of the bus connection of
the device.
BE LED
Display Meaning
Dark
AR (Application Relations) have been established and are
working correctly
Flashing red
Initialization by the IO controller / configured AR is no
longer in the data exchange
Red No bus connection
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