Siemens SIMATIC ET 200eco PN M12-L Equipment Manual page 29

P1 LK and P2 LK LEDs
Table 4-4 Error display of the P1 LK and P2 LK LEDs
P1 LK
Channel status/channel error LED
Table 4-5 Status and error display of the channel status/channel error LED
status/channel
I/O device digital inputs DI 16x24VDC M12-L 8xM12 (6ES7141-6BH00-0BB0)
Equipment Manual, 03/2023, A5E46570510-AD
LEDs
P2 LK
There is no Ethernet connection between
Off
the communications interface of your IO
device and a communication partner (e.g.
IO controller).
There is an Ethernet connection between
On
the communications 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 also flash).
Flashes
Communications error:
A physical connection exists, communica­
tion is not possible, however.
LEDs Meaning
Channel
error
Process value = 0
Off
Process value = 1
On
Channel diagnostics
On
Meaning
4.2 Interrupts/diagnostics alarms
Remedy
Check whether the bus cable to the
switch/communication partner is interrup­
ted.
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Check the PROFINET IO settings.
PROFINET IO
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