Diagnosis
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11.1.4
PROFINET IO-Device status
The
SF
(system failure) and
BF
(bus failure) LEDs indicate the status of the
. The LINK and ACT LEDs indicate the status of the
Ethernet.
Communication status PROFINET IO-Device
The following table describes the LED states of the PROFINET IO-Device
communication status.
LED
Color
State
Description
SF
(System Failure)
Position in the device
overview:
(7)
Duo LED red/green
(off)
Off
No error
(red)
Flashing
(1 Hz, 3 s)
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
overview:
(8)
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
Table 88: Communication status PROFINET IO-Device
LED state
Definition
Flashing
(1 Hz, 3 s)
The LED 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 LED turns on and off with a frequency of 2 Hz: “on” for 250 ms, followed
by “off” for 250 ms.
Table 89: Definition LED states communication status
Ethernet status PROFINET IO-Device
The following table describes the LED states of the PROFINET IO-Device
Ethernet status.
LED
Color
State
Description
LINK
Ch0:
(30)
, Ch1:
(29)
LED green
(green)
On
The device is linked to the Ethernet.
(off)
Off
The device has no link to the Ethernet.
ACT
Ch0:
(31)
, Ch1:
(28)
LED yellow
(yellow)
Flickering (load
dependent)
The device sends/receives Ethernet frames.
(off)
Off
The device does not send/receive Ethernet frames.
Table 90: Ethernet status PROFINET IO-Device
LED state
Definition
Flickering
(load
dependent)
The LED 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 LED turns on and off in irregular intervals to indicate low
Ethernet activity
Table 91: Definition LED states Ethernet status
NFD-3090-PNS-IOLM\W | Hardware, installation and commissioning
DOC201101UM03EN | Revision 3 | English | 2022-02 | Released | Public
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