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Communication modules
6.1 CP50M1 communication module
6.1.7
Pin assignments
PROFIBUS DP/MPI interface X1 and X2
The following connections are assigned to the 9-pin sub-D receptacle:
● PROFIBUS interface, RS 485 format and electrical isolation
● 5 V power supply for Optical Link Modules (OLM) with electrical isolation
Table 6- 4
Pin
1
2
3
4
5
6
7
8
9
Enclosure
96
Pin assignment of X1 and X2
Designation
n.c.
PB1/2_M24V
PB1/2_RS458_B
PB1/2_RTSAS
1/2MEXT
1/2P5EXT
PB1/2_P24MPI
PB1/2_RS458_A
PB1/2_RTSPG
Shield
Explanation
n.c.
Ground, non-isolated
Line B
RTS from AS
Ground P5, electrically isolated (to supply OLMs)
P5 electrically isolated (to OLM supply) (5 V DC/90 mA)
P24, non-isolated (24 V DC/150 mA)
Line A
RTS from programming device (n.c.)
System Manual, 12/2013, A5E01114865-07
SIMATIC TDC hardware
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