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86 •
Fieldbus coupler/controller
Review
3.2.9.1 Blink code
Detailed fault messages are displayed with the aid of a blink code. A fault is
cyclically displayed with up to 3 blink sequences.
• The first blink sequence (approx. 10 Hz) starts the fault display.
• The second blink sequence (approx. 1 Hz) following a pause. The number
• The third blink sequence (approx. 1 Hz) follows after a further pause. The
3.2.9.2 Fieldbus status
The operating status of the communication via LON is signalled via the top
LED group (SERVICE, STATUS and ICOM).
The SERVICE LED is directly connected to the Service Pin of the Neuron
Chip and indicates the state of the Neuron-C application.
Given that the proper application of the controller is not processed in the Neu-
ron
program, the application is performed internally within the controller. This is
the case even for the states "Unconfigured", "Applicationless" and "Watchdog
Timer" which are described below.
Indeed, no communication takes place over the LON network.
SERVICE-
LED
green
(lights up for
half a second
and then
remains off)
green blinks
(1 second on,
1 second off)
green blinks
(1 second on,
2 seconds off
then remains
on)
green blinks
cyclically
The STATUS LED indicates that a coupler is activated. This is the case when
a wink task is sent and when the communication of both network manager and
DPRAM interface fails.
STATUS-
LED
red blinks
(0,5 Hz)
red blinks
(2 Hz)
of blink pulses indicates the fault code.
number of blink pulses indicates the fault argument.
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Chip, but processing takes place inside the CPU via the IEC 61131-1
Meaning
Configuration successfully completed.
Adress assigned and Neuron-C application is
active.
No configuration,
no addressing of the Network Management
Tool (domain, subnet, node), Neuron-C
application is not activated yet.
No Neuron-C application loaded on the node. Load the Neuron-C application from your net-
Watchdog Timer,
Neuron-C application error
Meaning
5 times within the WINK task
(fault messages basically have a greater priority
than the WINK task.
DPRAM interface communication fault (has
priority)
Trouble shooting
Press the Service-Pin of the coupler and check
the Neuron-C application.
work management tool software into the node.
Check the Neuron-C application, if necessary
restart the application.
Trouble shouting
Reset fieldbus coupler hardware by switching off
the supply voltage of the coupler for about 3
seconds.
Change the fieldbus coupler if necessary.
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L
W
ON
ORKS
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