Siemens SIMATIC ET 200eco PN M12-L Equipment Manual page 60

Behavior of the LEDs RN/NS (RUN/network status), ER/MS (ERROR/module status) and MT/IO
(MAINT/IO status) on EtherNet/IP
The LEDs display the status with the highest priority if there are different LED states due to
overlaid events. (0 = off, 1 = green flashing, 2 = green, 3 = yellow, 4 = red flashing, 5 = red)
The following table shows the meaning of the RN/NS, ER/MS LEDs and MT/IO LEDs for
EtherNet/IP:
Table 6- 3
RN/
NS
Off
Flash-
ing
On
Flash-
ing
On
Not
rele-
vant
Not
rele-
vant
Not
rele-
vant
Not
rele-
vant
Not
rele-
vant
Not
rele-
vant
Not
rele-
vant
CM 8x IO-Link + DIQ 8x24VDC M12-L 8xM12 (6ES7148-6JJ00-0BB0) communications module
Equipment Manual, 12/2022, A5E51718265-AB
Error display of the LEDs
LEDs
ER/ MT/
MS IO
Missing or insufficient supply voltage
at the I/O device.
Off Off
Not Not I/O device on, no data exchange
rele- rele-
vant vant
Not Not The ET 200eco PN is currently ex-
rele- rele- changing data with the scanner.
vant vant
Not Not EtherNet/IP connection interrupted
rele- rele-
vant vant
The ET 200eco PN is currently ex-
changing data with at least one
On On
EtherNet/IP connection.
I/O devices used by EtherNet/IP are in
RUN mode.
Not No valid MultiFieldbus project is load-
rele- ed in the ET 200eco PN.
Off
vant
Not No data exchange. A valid Multi-
rele- Fieldbus project is loaded in the
Flash-
vant ET 200eco PN.
ing
Not Data exchange via EtherNet/IP
rele-
On
vant
Not Errors in the configuration or parame-
rele- ter assignment.
Flash-
vant
ing
Not The EtherNet/IP I/O devices are in
rele- STOP mode. No error
Off
vant
Not The EtherNet/IP I/O devices are in RUN
rele- mode.
On
vant
Not Maintenance
rele-
On
vant
Meaning
•
---
---
Evaluate the maintenance events.
EtherNet/IP
6.2 Diagnostics
Solution
Check the supply voltage.
59