Siemens SINUMERIK 840D sl Manual page 59

LED displays
For diagnostic purposes, the RJ45 sockets are each equipped with a green and an orange
LED. This allows the following status information about the respective PROFINET port to be
displayed:
Table 7-14
Name
Link
Activity
Position of the PROFINET interface
Figure 7-6
NCU 7x0.3 PN, NCU 7x0.3B PN
Manual, 06/2014, 6FC5397-1EP40-5BA1
PROFINET ports LED displays
Color Status
Green lit
off
Orange lit
off
PROFINET interface
Meaning
Transfer rate 100 Mbit/s
No or faulty connection
Data exchange
No data exchange
Connecting
7.7 PROFINET
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