Siemens SINUMERIK 840D sl Manual page 51

Pin assignment
Table 6-10
Pin
1
2
3
4
5
6
7
8
Position of the ports
The 4 ports for the PROFINET connection are in the option slot of NCU 720.2 PN and
NCU 730.2 PN.
LED displays
For diagnostic purposes, the RJ45 sockets are each equipped with a green and a yellow
LED. This allows the following status information about the respective PROFINET port to be
displayed:
Table 6-11
Name
Link
Activity
Beneath the ports are 2 LEDs with no specific function.
NCU
Manual, 07/2007, 6FC5397-0AP10-2BA0
PROFINET interfaces port 1, 2, 3, 4
Signal name Signal type
TX+ Output
TX- Output
RX+ Input
NC
NC
RX- Input
NC
NC
PROFINET ports LED displays
Color Status
Green To
Off
Yellow To
Off
6.5 PROFINET interfaces port 1 - port 4
Meaning
Transmit data +
Transmit data -
Receive data +
Receive data -
Meaning
100 MBit link available
Missing or faulty link
Sending or receiving
No activity
Interfaces
51