Diagnostics
11.1 Status LEDs
SIMATIC PN/CAN LINK
140
Operating Instructions, 03/2022, A5E39895388-AC
RUN
LED
ERROR
LED
MAINT
LED
1)
Operating
state
Description
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
1) The MAINT LED currently has no meaning.
x: LED state is irrelevant
During boot-up of the PN/CAN LINK and after connecting the power supply, the sequence 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 boot-up of the PN/CAN LINK is complete and the connection to the S7 controller is
established, the RUN LED lights up.
Ethernet interface
LINK
Indicates whether there is a physical connection on the Ethernet level.
On
Connection exists
Off
No connection exists
Rx/Tx
Indicates whether a package is being sent or received
On
PN/CAN LINK sends or receives a package
Off
No package is sent or received
Summary of Contents for SIMATIC PN/CAN LINK
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