LEDs
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10.3.4
LEDs PROFINET IO Controller
The subsequent table describes the meaning of the PROFINET IO
Controller LEDs of the NHST-T100-EN/PNM, respectively of the NHST-
T100-EN with loaded PROFINET IO Controller firmware.
LED
Color
State
Meaning
SF
(System Failure)
Position in the device
drawing:
(7)
Duo LED red/green
(off)
Off
No error
(red)
Flashing
(1 Hz, 3 s)
DCP signal service
is initiated via the bus.
(red)
Flashing
(2 Hz)
System error:
Invalid configuration, Watchdog error or internal
error
(red)
On (
together
with SF "red
ON"
)
No valid Master license
BF
(Bus Failure)
Position in the device
drawing:
(8)
Duo LED red/green
(off)
Off
No error
(red)
Flashing
(2 Hz)
Configuration fault:
Not all configured IO-Devices are
connected.
(red)
On (
together
with SF "red
ON"
)
No valid Master license
(red)
On (
together
with SF "red
ON"
)
No Connection:
No Link.
LINK
Ch0
(9)
, Ch1
(12)
LED green
(green)
On
The device is linked to the Ethernet.
(off)
Off
The device has no link to the Ethernet.
RX/TX
Ch0
(11)
, Ch1
(14)
LED yellow
(yellow)
Flickering
(load
dependent)
The device sends/receives Ethernet frames.
(off)
Off
The device does not send/receive Ethernet frames.
Table 42: LED states for the PROFINET IO-Controller 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 43: LED state definitions for the PROFINET IO-Controller protocol
netHOST NHST-T100 | LAN controlled master devices
DOC130401UM05EN | Revision 5 | English | 2018-05 | Released | Public
© Hilscher 2013 – 2018