Siemens SIMATIC 6ES7158-3MU10-0XA0 Hardware Installation And Operating Manual page 53

PROFINET IO
5.3 PROFINET IO interrupts, diagnostics, error messages and system events
LEDs
RN/NS ER/MS 1/2
1/2 (ERROR)
(RUN)
Flashes Flashes
Flashes Flashes
PS LEDs on the PN/MF Coupler
Figure 5-5
Table 5- 10 Status display of the PS LED
PS 1/2 LED
Missing or insufficient supply voltage
Off
Supply voltage present
On
52
MT/IO 1/
2(MAINT
)
The "Node flash test" is running (the LK1
and LK2 LEDs of the PROFINET interface
Flashes
also flash).
Hardware or firmware defective (The
LK1 and LK2 LEDs of the PROFINET in-
terface do not flash).
Not rele- Startup was stopped because a
vant BusAdapter that is defective or not sup-
ported was detected.
PS LEDs on the PN/MF Coupler
Meaning
Meaning
Check the supply voltage.
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Hardware Installation and Operating Manual, 07/2020, A5E50018670-AA
Remedy
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Restart the device by disconnecting and
reconnecting the supply voltage.
Run a firmware update.
If the error persists, contact Siemens Indus-
try Online Support (see also Reading service
data (Page 57)).
Replace the PN/MF Coupler.
Replace the BusAdapter of this interface.
Remedy
PN/MF Coupler