Network Design; Star Topology; Line Topology; Ring Topology - Danfoss VLT Compact Starter MCD 201 Installation Manual

Network Design

8 Network Design
The device supports star, line, and ring topologies.

8.1 Star Topology

In a star network, all controllers and devices connect to a
central network switch.
8 8
Illustration 8.1 Star Network Topology

8.2 Line Topology

In a line network, the controller connects directly to 1 port
st
of the 1 module. The 2
another module, which in turn connects to another device
until all devices are connected.
Illustration 8.2 Line Network Topology
18
Modbus TCP Module
nd
Ethernet port connects to
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NOTICE
The device has an integrated switch to allow data to
pass through in line topology. The device must be
receiving control power from the soft starter for the
switch to operate.
NOTICE
If the connection between 2 devices is interrupted, the
controller cannot communicate with devices after the
interruption point.
NOTICE
Each connection adds a delay to communication with the
next device. The maximum number of devices in a line
network is 32. Exceeding this number may reduce the
reliability of the network.

8.3 Ring Topology

In a ring topology network, the controller connects to the
1 st module via a network switch. The 2
the module connects to another device, which in turn
connects to another device until all devices are connected.
The final device connects back to the switch.
The device supports beacon-based ring node configu-
ration.
Illustration 8.3 Ring Network Topology
NOTICE
The network switch must support loss of line detection.
nd Ethernet port of
MG17N102