LED Descriptions
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netRAPID Chip Carrier | Getting Started
DOC131104GS04EN | Revision 4 | English | 2017-09 | Released | Public
© Hilscher 2014 - 2017
5.10 POWERLINK Controlled Node LEDs on NRPEB 51-RE and
NRPEB 52-RE
The subsequent table describes the signals of the POWERLINK
BS
and
BE
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
BS
(Bus Status)
Name in the device
drawing:
COM0
Number in the de-
vice drawing:
Duo LED red/green
(green)
On
Slave is in
‘Operational’
state
(green)
Triple Flash
Slave is in
‚ReadyToOperate’
state
(green)
Double flash
Slave is in
‚Pre-Operational 2’
state
(green)
Single flash
Slave is in
‚Pre-Operational 1’
state
(green)
Flickering (10 Hz)
Slave is in
‚Basic Ethernet’
state
(green)
Blinking (2.5 Hz)
Slave is in
‚Stopped’
state
(off)
Off
Slave initializing
BE
(Bus Error)
Name in the device
drawing:
COM1
Number in the de-
vice drawing:
Duo LED red/green
(off)
Off
Slave has no error
(red)
On
Slave has detected an error
L/A IN
/
RJ45 Ch0
L/A OUT
/
RJ45 Ch1
Number in the de-
vice drawing:
LED green
(green)
On
Link:
The device is linked to the Ethernet, but does not
send/receive Ethernet frames.
(green)
Flickering (load de-
pendent)
Activity:
The device is linked to the Ethernet and
sends/receives Ethernet frames.
(off)
Off
The device has no link to the Ethernet.
RJ45 Ch0
RJ45 Ch1
LED yellow
(off)
Off
This LED is not used.
Table 41: LED states for the POWERLINK Controlled Node protocol
LED state
Definition
Triple Flash
The indicator shows a sequence of three short flashes (each 200 ms), separated by a
short off phase (200 ms). The sequence is finished by a long off phase (1,000 ms).
Double flash
The indicator shows a sequence of two short flashes (each 200 ms), separated by a short
off phase (200 ms). The sequence is finished by a long off phase (1,000 ms).
Single flash
The indicator shows one short flash (200 ms) followed by a long “off“ phase (1,000 ms).
Flickering
(10 Hz)
The indicator turns on and off with a frequency of approximately 10 Hz: on for approxi-
mately 50 ms, followed by off for 50 ms. Red and green LEDs shall be on alternately.
Blinking
(2.5 Hz)
The indicator turns on and off with a frequency of approximately 2.5 Hz:
on for approximately 200 ms, followed by off for 200 ms. Red and green LEDs shall be on
alternately.
Flickering (load de-
pendent)
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 42: LED state definitions for the POWERLINK Controlled Node protocol
