FD67 Profibus-DP Manual
12
4.5 Profibus
connection
Initial conditions
Wiring must be performed while the equipment is not under power.
Tools
Stripper, screwdriver and a special tool if you do not use pre-wired conductors. Possibly a tool to screw
down the knurled ring.
Connecting the Profibus cable
&
Insert the plug of the Profibus cable into the corresponding socket of the bus node. See to it that
the ends meet exactly and make sure that the plug is completely stuck into the socket.
'
Screw down the plug with the knurled ring.
Bus In
Bus Out
Contact
Signal
Signification
1
VP
Power supply-Plus (P 5 V)
2
RxD/TxD-N
RxD/TxD–N, A-line (green)
3
DGND
Data transfer potential (reference potential to VP)
4
RxD/TxD-P
RxD/TxD–P, B-line (red)
5
Screen
Screen or ground
Thread
Screen
Screen or ground
♦
Fig. 4-5 : Contact assignments of Profibus M12 sockets (B-encoded)
40 mm
7 mm
%
$
+
)
♦
Fig. 4-6 : Assembling of the Profibus cable
The shield should preferably be applied over the surface of the thread. If this is not
possible, the shield can be connected via Pin 5. Both possibilities for applying the
shield can also be used together.
$
Bus cable
%
Screen
+
Green line (A)
)
Red line (B)
BUS IN
5
2
3
4
1
BUS OUT
1
2
3
4
5