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Pin assignment
Table 12-17
Pin
1
2
3
4
5
6
7
8
Cable specification
Table 12-18
Characteristic
Connector type
Cable type
Max. cable length
LED displays
For diagnostic purposes, the RJ45 sockets are each equipped with a green and a yellow LED. This
allows the following information to be displayed for the respective PROFINET port:
Table 12-19
Name
Link
Activity
PROFINET address (S1)
A logical address can be assigned to the I/O module for communication with PROFINET using a
10-bit DIP switch S1.
Table 12-20
1
NCU 1740
Equipment Manual, 09/2022, A5E51087503B AC
PROFINET interfaces X2, ports 1, 2
Signal name
Signal type
TX+
O
TX-
O
RX+
I
N.C.
-
N.C.
-
RX-
I
N.C.
-
N.C.
-
Cable specification at X2, ports 1, 2
PROFINET ports LED displays
Color
Status
Green
lit
off
Orange
lit
off
General settings with switch S1
2
3
4
5
6
12.2 PP 72/48D PN and PP 72/48D 2/2A PN
Meaning
Transmit data +
Transmit data -
Receive data +
Reserved, do not use
Reserved, do not use
Receive data -
Reserved, do not use
Reserved, do not use
Version
RJ45 socket
Industrial Ethernet cable (as of CAT5)
100 m
Meaning
Transfer rate 100 Mbit/s
No or faulty connection
Data exchange
No data exchange
7
8
9
10
Meaning
on
on
PROFINET functionality
Connectable components
125
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