LEDs
14/64
5.4
LEDs of the PROFINET IO Device interface
LED
Color
State
Meaning
RUN
(System
Failure)
Position in the device
drawing:
(2)
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
ERR
(Bus Failure)
Position in the device
drawing:
(1)
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
CH0
(6)
, CH1
(7)
LED green
(green)
On
The device is linked to the Ethernet.
(off)
Off
The device has no link to the Ethernet.
RX/TX
CH0
(8)
, CH1
(9)
LED yellow
(yellow)
Flickering (load
dependent)
The device sends/receives Ethernet frames.
(off)
Off
The device does not send/receive Ethernet frames.
Table 8: 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 9: LED state definitions for the PROFINET IO-Device protocol
netPI | NOIT-E-NPI3-51-EN-RE
DOC170801UM01EN | Revision 1 | English | 2017-09 | Released | Public
© Hilscher 2017
