Bridging Example

At a glance

The following pages present an example of PLC configurations bridging and its transparent PLC adresses.

Bridging Example

The following example consists of the following PLC configurations:

Configuration 3: this Modicon M340 configuration consists of the following communication modules:
- An Ethernet-Modbus processor with IP address 139.160.235.34 and Modbus Master. The processor is in slot 0 of the configuration so that the topological address of this processor’s Ethernet channel is 0.0.3 and the topological address of this processor’s Modbus channel is 0.0.0.
- An Ethernet module BMX NOE 0100 with IP address 118.159.35.2. The Ethernet module is in slot 5 of the configuration so that the topological address of this Ethernet module’s channel is 0.5.0.
Configuration 1: this configuration consists of a remote PLC linked to processor’s Ethernet channel of the configuration 3. The IP address of this remote PLC is 139.160.235.16.
Configuration 2: this configuration consists of a remote PLC linked to Ethernet module’s channel of the configuration 3. The IP address of this remote PLC is 118.159.35.45.
Configuration 4: this configuration consists of a remote PLC linked to processor’s Modbus channel of the configuration 3. The Modbus slave address of this remote PLC is 66.

This diagram presents the bridging example:

The transparent PLC addresses are as follows:

Bridging configuration	Transparent PLC address
(1) USB connection to remote PLC, which is linked to an Ethernet module	SYS\\0.5.0{118.159.35.45}
(2) processor’s Ethernet channel to remote PLC, which is linked to an Ethernet module	139.160.235.34\\0.5.0{118.159.35.45}
(3) processor’s Modbus channel to remote PLC linked, which is linked to an Ethernet module	5\\0.5.0{118.159.35.45}
(4) USB connection to remote PLC, which is linked to processor’s Modbus channel	SYS\\0.0.0.66
(5) Ethernet module connection to remote PLC, which is linked to processor’s Modbus channel	118.159.35.2\\0.0.0.66
(6) Ethernet module connection to remote PLC, which is linked to processor’s Ethernet channel	118.159.35.2\\0.0.3{139.160.235.16}