Lenze E84Dxxxx - Manual (Page 15)

Communication manual 8400 protec PROFIBUS
Installation
Network topology
15
L
EDS84DPBUS EN 2.0 - 09/2010
4 Installation
4.1 Network topology
The following examples show two simple RS485 networks.
Each segment of the network must be terminated at both ends. The bus terminators of the
PROFIBUS are marked with a "Z" in the examples.
With an RS485 network of only one segment, the PROFIBUS master (M) with the integrated
bus terminating resistor starts the segment and the bus of the last PROFIBUS node (S) must
be terminated with a bus terminating resistor.
[4-1] RS485 network with one segment
An RS485 network consisting of several segments contains repeaters (R) for coupling the
segments. The repeaters are provided with integrated bus terminating resistors.
[4-2] RS485 network with repeater

Mounting instructions "Inverter Drives 8400 protec"
Here you will find detailed information on the mechanical and electrical
installation of the device.
Observe the included safety instructions!
E94YCPM012a
M
Z
Z
S S S
1
E94YCPM012b
M
Z
Z
S S S
Z Z Z Z
1 2 3
R
S S
R