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1. Installation
Pin assignment
(view of front)
Fig. 1/7: Pin assignment of the field bus interface
Festo plug
1-14
Please note
Connect pins 3 and 8 for the field buses described here.
Pin
Signal
1
n.c.
2
n.c.
3
RxD/TxD-P
4
reserved
5
reserved
6
reserved
7
n.c.
RxD/TxD-N
8
9
reserved
Housing
screening
Please note
Before connecting the sub-D plugs of other manufacturers:
S Replace the two flat screws with bolts (part no. 340960).
A floating screening connection can be achieved with the
Festo plug.
S
Clamp the screening of the field bus cable under the cable
clip of the Festo plug (see diagram).
Please note
The cable clip in the Festo plug is internally connected ca-
pacitively with the metallic housing of the sub-D plug.
This is to prevent equalizing currents from flowing via the
screening of the field bus cable (see diagram).
Designation
not connected
not connnected
Receive/send data-P
reserved
(data reference potential (M5V))
(supply voltage positive / P 5V)
not connected
Receive/send data-N
reserved
direct connection to housing
Festo P.BE-CP-FB5-E-EN en 0112a
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