Siemens SIMATIC ET 200SP Manual page 46

LK1/LK2 and MT LEDs on the BusAdapter
Table 8- 2
LK1/LK2
flashes
Not relevant
Not relevant
BusAdapter
Manual, 03/2018, A5E41449003-AA
Status and error displays
LED
MT
Not relevant
off
Not relevant
on
Not relevant
off
on
Meaning
There is no Ethernet connec-
tion between the
PROFINET IO interface of
your PROFINET device and a
communication partner, e.g.
IO controller.
There is an Ethernet connec-
tion between the
PROFINET IO interface of
your PROFINET device and a
communication partner, e.g.
IO controller.
The "Node flash test" is run-
ning. The RN/ER/MT LEDs
are also flashing.
No error
Fiber-optic error
•
Maintenance demanded:
•
attenuation through the fi-
ber-optic cable is already
so high that operation will
soon no longer be possi-
ble.
BusAdapter BA SCRJ/FC
8.3 Diagnostics
Remedy
Check whether the bus cable to the
switch or IO controller is disconnect-
ed.
-
-
-
Causes and measures for the trans-
mission route:
Replace the fiber-optic cable if
•
damaged or aged.
Ensure correct installation of the
•
PROFINET plugs or PROFINET
connectors.
Adhere to maximum length of
•
50 m for POF cable or 100 m for
PCF cable.
Ensure that the FOC connectors
•
fit securely.
45