LEDs
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10.4 LEDs PROFINET IO Device
The subsequent table describes the meaning of the PROFINET IO-Device
LEDs.
LED
Color
State
Meaning
SF
(System Failure)
Position in the device
drawing:
(9)
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)
Position in the device
drawing:
(10)
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:
(18)
, CH1:
(21)
LED green
(green)
On
The device is linked to the Ethernet.
(off)
Off
The device has no link to the Ethernet.
RX/TX
CH0:
(19)
, CH1:
(22)
LED yellow
(yellow)
Flickering
(load
dependent)
The device sends/receives Ethernet frames.
(off)
Off
The device does not send/receive Ethernet frames.
Table 18: 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
dependant)
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 19: LED state definitions for the PROFINET IO-Device protocol
netTAP NT 151-CCIES-RE | CC-Link IE Field Slave to PROFINET IO-Device gateway
DOC180403UM01EN | Revision 1 | English | 2018-08 | Released | Public
© Hilscher 2018
