Profibus-Dp/Mpi Interfaces X126, X136 - Siemens SINUMERIK 840D sl Manual

You can see this type plate when you open the front cover of the NCU 720.2 PN and
NCU 730.2 PN.
See also
PROFINET cables (Page 70)
6.6 PROFIBUS–DP/MPI interfaces X126, X136
Properties
● Isolated RS 485 interface
● Max. data rate 12 Mbaud
● Supports master/slave operation
● PROFIBUS address is set via configuration
● OLPs (6GK1502-1AA00) are not permitted
Pin assignment for X126, X136
Table 6-8
Pin
1
2
3
4
5
6
7
8
9
The 1P5 voltage is provided exclusively to supply the bus terminal.
Signal type: VO = Voltage output (power supply) O = Output B = Bidirectional
NCU
Manual, 03/2010, 6FC5397-0AP10-3BA0
Note
In addition to the DP (distributed I/Os) protocol, X136 can also transmit the MPI (multi-
point interface) protocol (software-controlled).
PROFIBUS DP interfaces (X126, X136)
Signal name Signal type
Nc -
M VO
2RS_DP B
2RTS_DP O
1M VO
1P5 VO
P24_SERV VO
2XRS_DP B
Nc -
6.6 PROFIBUS–DP/MPI interfaces X126, X136
Meaning
-
Ground to P24_SERV
RS485 differential signal
Request to Send
Ground to 1P5
5 V power supply for bus terminal, external, short circuit-proof
24 V for teleservice, short circuit-proof, 150 mA maximum
RS485 differential signal
-
Interfaces
47