LED Descriptions
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netRAPID Chip Carrier | Getting Started
DOC131104GS04EN | Revision 4 | English | 2017-09 | Released | Public
© Hilscher 2014 - 2017
5.6 PROFINET IO Device LEDs on NRPEB 51-RE and NRPEB
52-RE
The subsequent table describes the signals of the PROFINET IO Device
SF
and
BF
LEDs. These LEDs are represented on the Evaluation Boards
by the
COM0
and
COM1
LEDs.
The LEDs on the RJ45 sockets are also described.
LED
Color
State
Meaning
SF
(System
Failure)
Name in the
device drawing:
COM0
Number in the
device drawing:
Duo LED red/green
(off)
Off
No error
(red)
Flashing
(1 Hz, 3 s)
DCP signal service is initiated via the bus.
(red)
On
Watchdog timeout; channel, generic or extended diagnosis
present; system error
BF
(Bus Failure)
Name in the
device drawing:
COM1
Number in the
device drawing:
Duo LED red/green
(off)
Off
No error
(red)
Flashing
(2 Hz)
No data exchange
(red)
On
No configuration; or low speed physical link;
or no physical link
LINK
/RJ45
Ch0 & Ch1
Number in the
device drawing:
LED green
(green)
On
The device is linked to the Ethernet.
(off)
Off
The device has no link to the Ethernet.
RX/TX
/RJ45
Ch0 & Ch1
Number in the
device drawing:
LED yellow
(gelb)
Flickering
(load
dependent)
The device sends/receives Ethernet frames.
(off)
Off
The device does not send/receive Ethernet frames.
Table 33: LED states for the PROFINET IO-Device protocol
LED state
Definition
Flashing
(1 Hz, 3 s)
The indicator turns on and off for 3 seconds with a frequency of 1 Hz: “on” for 500 ms, followed
by “off” for 500 ms.
Flashing (2 Hz)
The indicator turns on and off with a frequency of 2 Hz:
“on” for 250 ms, followed by “off” for 250 ms.
Flickering
(load dependent)
The indicator turns on and off with a frequency of approximately 10 Hz to indicate high Ethernet
activity: on for approximately 50 ms, followed by off for 50 ms. The indicator turns on and off in
irregular intervals to indicate low Ethernet activity.
Table 34: LED state definitions for the PROFINET IO-Device protocol
