Siemens SIMATIC NET PG PROFIBUS CP 5603 Operating Instructions Manual page 11

PIN assignment
The D-sub female connector has the following pin assignment:
PIN Short name
1 NC
2 NC (M24)
3 LTG_B
4 RTSAS
5 M5EXT
6 P5EXT
7 NC (P24V)
8 LTG_A
9 RTS
Shield
CP 5603
Operating Instructions, 08/2016, A5E02146341A-04
Meaning
Socket pin 1 is not connected.
Socket pin 2 is not connected. With other MPI/DP components,
the return line of the floating 24 V power supply may be via this
pin.
Signal line B of the PROFIBUS connector.
RTSAS, input signal for direct MPI link. The control signal is "1"
active when the automation system connected over a special
MPI cable is sending.
M5EXT return line (GND) of the 5 V power supply. The current
load of an external consumer connected between P5EXT and
M5EXT must not exceed a maximum of 90 mA.
P5EXT supply (+5 V) of the 5 V power supply. The current load
of an external consumer connected between P5EXT and
M5EXT must not exceed a maximum of 90 mA (short-circuit
proof).
Socket pin 7 is not connected. With other MPI/DP components,
the P24V supply of the floating 24 V power supply may be via
this pin.
Signal line A of the PROFIBUS connector.
RTS output signal of the CP module. The control signal is "1"
active when the device (PG or PC) is sending.
The shield is connected to components of the connector hous-
ing.
Description of the device
2.2 PROFIBUS interface
Input/output
-
-
Input/output
Input
Output
Output
-
Input/output
Output
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