Lenze 2130IB - Manual (Page 11)

9
1.1. Structure of the PROFIBUS system
The PROFIBUS network according to DIN 19245 part 1, consists of an
RS485 connection.
As standard, you can connect a maximum of 32 participants (including
hosts) to the RS 485 bus. Using repeaters this structure can be
extended to a maximum of 127 participants in the whole bus system.
The repeaters can also be used to achieve line or tree topologies. The
maximum extension of the bus system depends on the baud rate and
the number of repeaters.
For more information, please consult the documentation of the control
manufacturer.
PROFIBUS using RS485 connection (without repeaters)
8600
4900
9200
PROFIBUS
LECOM-AB
8600
4900
9200
PROFIBUS
LECOM-AB
8600
4900
9200
PROFIBUS
LECOM-AB
Controller 1 Controller 2 Controller 3
Host (Master)
Motor 1 Motor 3 Motor 2
Apart from the RS485 connection you can also use an optical fibre
cabling. Here, the Siemens system SINEC-L2FO is used mainly,
where point-to-point and star connections (using active star
connectors) are possible.
Note:
The module variant 2130IB.V002 has a connection for OFC plastic
fibres for distances from 5 m to 25 m.