RM2-DP12 Module
16–2
1070 072 145-102 (01.07) GB
The module uses single modular width.
16.2 Connecting to PROFIBUS-DP
The RM2-DP is connected to the PROFIBUS by means of a male DB-9 con-
nector which, for security reasons, should be screwed tightly onto the female
DB-9 connector of the RM2-DP12. The X71 PROFIBUS connector is located
on the front panel. The pin assignment corresponds to the PROFIBUS stan-
dard.
Pin assignment, female DB-9 PROFIBUS-DP connector:
Pin Signal Function
1 – not used
2 – not used
3 B_TLG RX / TX data P
4 RTS_SIG Repeater control signal P
(TTL signal)
5 GND_ISO Data reference potential
6 P5V_ISO E-pos.; 100 mA
7 – not used
8 A_LTG RX / TX data N
9 GND_ISO Repeater control signal N
(DGND)
From the P5V_ISO on the X71 PROFIBUS-DP connector, up to 100 mA of
current can be picked off externally.
Baud Rate
The module automatically adjusts to the baud rate of the PROFIBUS-DP
(9600 baud to 12 Mbaud).
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