Siemens SIMATIC ET 200SP Manual page 36

Interrupts, diagnostics, error, and system messages
5.1 Status and error displays
PWR LED on the interface module
Table 5- 2 Status display of the PWR LED
PWR LED
Supply voltage not present or too small
Off
Supply voltage present
On
LK1/LK2 and MT1/MT2 LEDs on the BusAdapter
Table 5- 3 Status and error displays of LK1/LK2 and MT1/MT2 LEDs
LED
LK1/LK2 MT1/MT2*
Not relevant
Off
Not relevant
On
Not relevant
Flashes
Not relevant
Not relevant
* Available only on BA 2×SCRJ, BA SCRJ/RJ45 and BA SCRJ/FC BusAdapters
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Meaning
There is no Ethernet connection
between the PROFINET IO interface
of your PROFINET device and a
communication partner (e.g. IO con-
troller).
There is an Ethernet connection
between the PROFINET IO interface
of your PROFINET device and a
communication partner (e.g. IO con-
troller).
The "Node flash test" is run (the
RN/ER/MT LEDs also flash).
No error
Off
Fiber-optic error
•
On
Maintenance demanded: Attenua-
•
tion through the fiber-optic cable
is so high that operation will soon
no longer be possible.
Check the supply voltage.
---
Meaning
Check whether the bus cable to the switch/IO
controller is interrupted.
---
---
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Causes and measures for the transmission
route:
•
•
•
•
IM 155-6 PN HS interface module (6ES7155-6AU00-0DN0)
Remedy
Remedy
Replacement of fiber-optic cable if dam-
aged or aged
Correct installation of the PROFINET
connector/PROFINET connections
Adherence to maximum length of 50 m
for POF cable or 100 m for PCF cable.
Secure fit of the FOC connector
Manual, 09/2016, A5E34928647-AA