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CTI 2500 Installation and Operation Guide V2.8
43
Profibus Connector
A special DB 9 connector is recommended for all Profibus DP installations.
Connector such as the one pictured above, provide either snap-in or screw terminal
termination, horizontal cable connection, and switchable termination. Connectors such as
these are commonly available from your distributor or other industrial suppliers.
Profibus Topology
Profibus slave devices are connected in a “daisy chain” arrangement as indicated in the
following illustration.
Up to 32 devices can be connected on a single segment. To increase distance or the
number of devices supported, segments can be interconnected by using repeaters. Up to 10
segments may be connected together.
R
C
P
U
DP
Slave
DP
Slave
DP
Slave
DP
Slave
DP
Slave
R = Repeater
Segment
Segment
DP
Slave
C
P
U
R
B
C
R
B
C
DP
Slave
DP
Slave