Siemens SIMATIC ET 200eco PN M12-L Manual page 30

RN/NS
(green)
Not rele-
vant
flashes
PWR LED
Table 5- 2
LEDs P1 LK and P2 LK
The following table describes the behavior of LEDs that indicate the connection status with a
PROFINET IO controller or a PROFINET switch.
Table 5- 3
P1 LK
Communication module CM 8x IO-Link + DI 4x24VDC M12-L (6ES7148-6JG00-0BB0
Equipment Manual, 09/2020, A5E49284833-AA
LED
ERR/MS MT/IO
(red) (yellow)
Not rele-
vant
On (yellow)
flashes flash
Status display of the PWR LED
PWR LED Meaning
Load voltage 2L+ is missing or too low
Off
Load voltage 2L+ present
On (green)
Status displays of the LEDs P1 LK and P2 LK
LEDs Meaning
P2 LK
There is no Ethernet connection
between the communications
off
interface of your IO device and a
communication partner (e.g. IO
controller).
There is an Ethernet connection
between the communications
On (green)
interface of your IO device and a
communication partner (e.g. IO
controller).
The "Node flash test" is running
(the RN/NS, ER/MS and MT/IO LEDs
Flashes
also flash).
Communication error: A physical
connection exists but communica-
tion is not possible.
Meaning
Maintenance
The "Node flash test" is run-
ning (the P1 LK and P2 LK
LEDs of the PROFINET inter-
face are also flashing).
Hardware or firmware faulty.
(The P1 LK and P2 LK LEDs of
the PROFINET interface are
not flashing).
Remedy
Check whether the bus cable to the
switch/communication partner is
interrupted.
-
-
Check the PROFINET IO settings.
Interrupts/diagnostics alarms
5.1 Status and error displays
Remedy
Evaluate the maintenance
events.
-
Replace the ET 200eco PN
I/O device.
29