Siemens SIMATIC BusAdapter - Page 33

BusAdapter BA 2xSCRJ
6.3 Diagnostics
BusAdapter
32 Equipment Manual, 08/2020, A5E41449003-AB
LK1/LK2 and MT1/MT2 LEDs on the BusAdapter
Table 6- 2 Status and error displays
LED
Meaning Remedy
LK1/LK2
MT1/MT2
off
Not relevant
There is no Ethernet connection be-
tween the PROFINET IO interface of
your PROFINET device and a commu-
nication partner, e.g. IO controller.
Check whether the bus cable to the switch or
IO controller is disconnected.
on
Not relevant
There is an Ethernet connection be-
tween the PROFINET IO interface of
your PROFINET device and a commu-
nication partner, e.g. IO controller.
-
flashes
Not relevant
The "Node flash test" is running. The
RN/ER/MT LEDs are also flashing.
-
Not relevant
off
No error
-
Not relevant
on
• Fiber-optic error
• Maintenance demanded: attenua-
tion through the fiber-optic cable
is already so high that operation
will soon no longer be possible.
Causes and measures for the transmission
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 secure-
ly.