Cable specication
For PROFINET, you always require a data transmission rate of 100Mbit/s (Fast Ethernet) in full
duplex mode. For data transfer purposes, you can use twisted-pair copper cables (4-wire,
100Base-T).
Table 8-13 Cable specication for X150 ports 1, 2
Characteristic Version
Connector type RJ45 socket
Cable type Industrial Ethernet cable (as of CAT5)
Max. cable length 100 m
8.9 PROFIBUS DP
8.9.1 Application
Connectable devices
The following devices can be connected to the PROFIBUS DP interfaces:
• Distributed I/O
• Drive units with PROFIBUS DP interface (standard slaves)
• S7 controls with PROFIBUS DP interface
• PG/PC for diagnostics/troubleshooting
Properties
• Isolated RS 485 interface
• Max. data rate 12 Mbits/s
• Supports master/device operation
• PROFIBUS address is set via conguration
X126 pin assignment
Pin Signal name Signal type Meaning
1 - - Reserved, do not use
2 M VO Ground to P24_SERV
3 1RS_DP B RS-485 dierential signal
4 1RTS_DP O Request to send
5 M5EXT VO Ground to P5EXT
Connecting
8.9PROFIBUS DP
NCU 1750
Equipment Manual, 10/2023, A5E45627807B AH 77
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