Operating Manual BKS601C
43
10
PROFIBUS Interface Description
10.1
Wiring the PROFIBUS Data Cable
Wiring the PROFIBUS cables
A standardized PROFIBUS cable type A (STP 2x0.34
2
) [AWG] has to be used. The
cables isolation is stripped as shown in
Fig. 4
and connected to the terminals
according to the wiring diagram.
The shield is connected with the bracket to the shoulder inside the housing.
Caution
The shield of the PROFIBUS cable is only grounded if the bracket inside the housing
clamps directly to the shield. Therefore the isolation has to be fixed only with the PG
gland (referring to
Fig. 4
)
Termination
If both cables are connected (Bus in and Bus out), the two termination dip switches
must be set in the “off” position.
If only one cable is connected (Bus in), both termination dip switches have to be set in
“on” position.
Fig. 24
: Profibus board
E621009
Fig. 25A
: connection Profibus
K610024
Note
The PROFIBUS network has to be terminated properly. Otherwise the installation
cannot be set into operation. It has to be ensured that only the last device of the
PROFIBUS chain is terminated.
