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LEDs
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netTAP NT 50 | Gateway Devices
DOC091202UM09EN | Revision 9 | English | 2013-02 | Released | Public
© Hilscher, 2010-2013
8.2.5
LEDs PROFINET IO-RT-Device
The subsequent table describes the meaning of the LEDs for the Real-Time
Ethernet device when the firmware of the PROFINET IO-RT-Device proto-
col is loaded to the device.
LED
Color
State
Meaning
Duo LED red/green
(red)
On
Watchdog timeout; channel, generic or extended diagnosis present; sys-
tem error
(red)
Flashing
cyclic at 2 Hz
(for 3 sec.)
DCP signal service is initiated via the bus
SF
Number in
the device
drawing:
(off)
Off No
error
Duo LED red/green
(red)
On
No configuration; or low speed physical link; or no physical link
(red)
Flashing
cyclic at 2 Hz
No data exchange
BF
Number in
the device
drawing:
(off)
Off No
error
LED green
(green)
On
A connection to the Ethernet exists
LINK
/RJ45
(off)
Off
The device has no connection to the Ethernet
LED yellow
RX/TX
/RJ45
(yel-
low)
Flashing
The device sends/receives Ethernet frames
Table 38: LEDs PROFINET IO-RT-Device