Siemens SIMATIC ET 200eco PN M12-L Equipment Manual page 54

Modbus TCP
6.2 Diagnostics
PWR LED
Table 6-4 Status display of the PWR LED
P1 LK and P2 LK LEDs
Table 6-5 Error display of the P1 LK and P2 LK LEDs
P1 LK
Channel status/channel fault LED
Table 6-6 Status and fault display of the channel status/channel fault LED
status/channel
54
PWR LED Meaning
Load voltage 2L+ is missing or too low
Off
Load voltage 2L+ present
On
LEDs
P2 LK
There is no Ethernet connection between
Off
the communications interface of your IO
device and a communication partner (e.g.
scanner).
There is an Ethernet connection between
On
the communications interface of your IO
device and a communication partner (e.g.
scanner).
The "Node flash test" is running (the
RN/NS, ER/MS and MT/IO LEDs also flash).
Flashes
LEDs Meaning
Channel
fault
Process value = 0
Off
Process value = 1
On
Channel diagnostics
On
Meaning
I/O device digital outputs DQ 8x24VDC/0.5A M12-L 8xM12 (6ES7142-6BG00-0BB0)
Remedy
Check whether the bus cable to the
switch/communication partner is interrup­
ted.
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Equipment Manual, 03/2023, A5E46570894-AD