Softing BC-600-PB, Руководство пользователя

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BC-600-PB Connection to PROFIBUS
Softing Page 19
7.2 Simple Connection for Tests During System Shutdown
If all bus stations provide D-sub connectors with an additional service socket,
you can simply plug in the PROFIBUS Tester 4 at that socket (see figure
below). If a D-sub connector does not provide a service socket, you can plug
in the D-sub adapter cable underneath. The only thing you need to keep in
mind is that you should never cascade more than two D-sub connectors (see
page
17 ).
When using M12 connection technology, the M12 adapter cable is “looped”
into the bus. It is essential to ensure proper termination at the beginning and
end of the bus by using the terminating resistor provided with the M12 adapter
set.
Attention: All these simple connection types will divide the bus. You
therefore need to shut down the PLC and all the devices connected
to the PROFIBUS; in other words, you need to shut down the whole
installation.
D-sub Connection points
PLC
Remote I/O Remote I/O
Remote I/O
M12
Termination
at begin and
end of bus!
or
Fig. 13: Connection points at system shutdown