Siemens SINUMERIK 840D sl Equipment Manual page 61

Pin
8
Signal type: B = bidirectional
Note
The PROFINET interface has what is known as autocrossing functionality, i.e. when required,
transmit and receive lines are switched over. Thus, no crossover cables are necessary.
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
NCU 7x0.3B PN
Equipment Manual, 10/2020, 6FC5397-1EP40-6BA1
Signal name Signal type
- -
PROFINET ports LED displays
Color Status
Green lit
off
Orange lit
off
Meaning
Reserved, do not use
Meaning
Transfer rate 100 Mbit/s
No or faulty connection
Data exchange
No data exchange
Connecting
7.8 PROFINET
61