Siemens SIMATIC ET 200eco PN M12-L Equipment Manual page 43

RN/
NS
Flashes Flashes Flashes
Flashes Flashes Flashes
Flashes Flashes Flashes
P1 LK and P2 LK LEDs
Table 5-4 Error display of the P1 LK and P2 LK LEDs
P1 LK
Channel status/channel fault LED
Table 5-5 Status and fault display of the channel status/channel fault LED
status/channel
I/O device digital inputs DI 16x24VDC M12-L 8xM12 (6ES7141-6BH00-0BB0)
Equipment Manual, 03/2023, A5E46570510-AD
LEDs
ER/ MT/
MS IO
Test of LEDs during startup: The three
LEDs light up simultaneously for
approximately 0.25 s in red. Then for
approximately 0.25 s in green.
Hardware or firmware defective.
The "Node flash test" is running (the
P1 LK and P2 LK LEDs are also
flashing).
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
Meaning
5.2 Diagnostics
Remedy
---
You can read out the service data with
MFCT.
Remedy
Check whether the bus cable to the
switch/communication partner is interrup­
ted.
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---
EtherNet/IP
43