Siemens SIMATIC 6ES7158-3MU10-0XA0 Hardware Installation And Operating Manual page 84

LEDs
RN/NS ER/MS
(NET (MODUL
STATUS) STATUS)
Flashes Flashes
On Flashes
Flashes Flashes
Flashes Flashes
Flashes Flashes
Flashes Flashes
Flashes Flashes
On On
* PWR LED On (on MF device): Check the backplane bus for short-circuit.
PN/MF Coupler
Hardware Installation and Operating Manual, 07/2020, A5E50018670-AA
MT/IO
(IO
STATUS)
The MF device is not exchanging data.
There is an MF device fault.
Off
The MF device is exchanging data error-
free via a connection (EtherNet/IP). There is
Flashes
diagnostics information for the I/O.
Not rele- At least one connection existed (Ether-
vant Net/IP). A connection has been terminated
by timeout.
At least one connection existed (Ether-
Net/IP or Modbus TCP). A connection has
Flashes
been terminated by timeout.
Error in the configuration or parameter
assignment, or there is PROFINET IO diag-
nostics information.
The "Node flash test" is running.
Flashes
Hardware or firmware defective.
Flashes
Test of LEDs during startup: The three LEDs
light up yellow simultaneously for approx-
Flashes
imately 0.25 s. Then for approximately
0.25 s in green.
RN/NS-, ER/MS-, MT/IO-LEDs are perma-
nently on: Hardware or firmware defective.
On
Error information will be determined and
stored retentively on the Flash memory.
Meaning
6.3 Diagnostics
Notes
• Establish the cyclic communication
via the I/O register area of the MF
device or via EtherNet/IP.
• Check the station configuration and
eliminate configuration and param-
eter assignment errors via MFCT
and eliminate diagnostics errors.
• Check the station configuration for
I/O modules assigned for Ether-
Net/IP and eliminate I/O diagnostics
errors or insert missing I/O modules.
• Reduce the cycle time.
• Check the accessibility of the MF
device via the network from the
perspective of the EtherNet/IP scan-
ner.
• Check the accessibility of the MF
device via the network from the
perspective of the EtherNet/IP scan-
ner.
• Check the station configuration and
eliminate configuration and param-
eter assignment errors via MFCT
and eliminate diagnostics errors.
• The LK1 and LK2 LEDs of the Ether-
net interface are also flashing.
• You can read out the service data
with STEP 7 V5.6.
---
Do not disconnect the interface module
from the supply voltage while the LEDs
are permanently lit up. This may take a
few minutes.
EtherNet/IP
83