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Device connector
You can connect either the PROFIBUS-DP or the power supply to the device
assignment
connector. The two 12-pin connectors are interconnected internally. Table 4-3
shows the assignment of the 12-pin device connector.
Table 4-3
Pin
1
2
Power supply
You connect the power supply to the DP/ASi link using the second device
connector. Make sure that the power supply cable is deenergized at the time
of connection.
Warning
!
The DP/ASi link may be destroyed by voltage glitches that may occur while
the connector is being slipped on.
The DP/ASi link starts up automatically when the operating voltage is turned
on.
Unused device
If you run the supply voltage over the PROFIBUS-DP and do not loop the
connector
PROFIBUS-DP through the DP/ASi link, you must seal the second device
connector with the metal cap or, if necessary, screw on the terminating resis-
tor. Only then is IP 66/IP 67 assured.
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
Pin assignment of 12-pin device connector
Assign-
Meaning
ment
1
–
Reserved
1
2
A
Data line P
3
–
Reserved
2
4
B
Data line N
5
–
Reserved
6
–
Reserved
7
P24V
24 V input voltage
8
M24V
24 V reference poten-
tial
9
PI
Protective conductor
10
–
Reserved
11
–
Reserved
12
–
Reserved
Green on Siemens sourced cable
Red on Siemens sourced cable
Installing and Wiring the DP/ASi Link
View
View: mating side
4-9
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