USB sticks that deviate from these requirements have not been tested can may not be
recognized by the NCU.
PROFIBUS DP / MPI interface
Connector type: 9-pin sub-D socket
Max. data transmission rate: 12 Mbit/s
Max. cable length: 100 m
Table 1-7 Assignment of the PROFIBUS DP / MPI interface
Connector Pin Name Type Remark
1,2 N.C. - Not connected
3 LTG_B B Signal line B of MPI module
4 RTS_AS I Control signal for receive data current. Signal 1
active if directly connected control is sending.
5 M5EXT V Return line (GND) of 5 V supply. Current load
from a load of 90 mA max. connected between
P5EXT and M5EXT.
6 P5EXT V 5 V supply (current load see M5EXT)
7 N.C. - Not connected
8 LTG_A B Signal line A of MPI module
9 RTS_PG O RTS signal of MPI module; signal is "1", when
PG is sending
Shield - On connector housing
PROFIBUS DP interface
Connector type: 9-pin sub-D socket
Max. data transmission rate: 12 Mbit/s
Max. cable length: 100 m
General information and networking
1.3 Connecting
Operator panel front: OP 012
24 Manual, 09/2016, A5E36371591B
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