Diagnostics
10.1 Status LEDs
SIMATIC PN/J1939 LINK
54
Operating Instructions, 12/2018, A5E45307564-AA
Table 10- 1 Behavior of the status LEDs RUN, ERROR, MAINT
RUN
LED
ERROR
LED
MAINT
LED
1)
Operating
state
Description
On
On
On
Power-up test /
Serious error
•
For approximately 1 second: LED test
during startup
•
Longer than 1 second: HW error detected
during power-up test or other serious error
Off
Off
Off
System run-up
•
System not completely booted yet but
power-up test is complete.
Flashes
Off
Off
Not connected to
S7 controller
•
No "IO controller" connection established
or
•
configuration not yet completed.
On
x
Off
Connected to
S7 controller
•
"IO controller" connection established and
configuration completed.
x
Flashes
Off
Error state
•
"IO controller" connection established and
configuration completed, but an error oc-
curred:
–
Diagnostics alarm to the S7 controller
is pending
–
Incorrect configuration by the S7 con-
troller
Flashes for at least 3 seconds.
Flashes
Off
Off
Firmware update
•
While the firmware is written to the flash
memory.
Flashes
Flashes
Off
LEDs are flashing
(triggered by
TIA Portal)
•
3-second intervals
•
For identification of the device
1) The MAINT LED currently has no meaning.
x: LED state is irrelevant
When the PN/J1939 LINK starts up after connecting the power supply, the procedure is as
follows:
1.
The three LEDs light up briefly for about 1 second and then go dark again.
2.
None of the LEDs light up for about 4 seconds.
3.
The RUN LED starts flashing.
4.
When the startup of the PN/J1939 LINK is successfully complete and the connection to
the S7 controller is established, the RUN LED lights up.
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