Overview

You can create logical networks in either way:

  • From the Logical Networks node of the SYSTEM PROJECT pane. This creates a new logical network with default settings.

  • From the interface of a device that exists in your system project and that manages at least one IP address. This assigns the associated port of the device to the newly created logical network, which appears in the SYSTEM PROJECT pane. By using this method, you can configure the logical network as you create it.

  • By using the Create Logical Network button in the toolbar of the LOGICAL NETWORK VIEW.

When you add certain modules to a PAC and apply changes, the software may create a new logical network and assign an interface to it.

NOTE: When you create a logical network and assign an interface of the device to it, properties of the interface related to the logical network are automatically configured. For a description of the properties of devices, refer to the topic describing the PROPERTIES pane.

Creating Logical Networks from the SYSTEM PROJECT Pane

To create a logical network from the Logical Networks node of the SYSTEM PROJECT pane, proceed as follows.

Step

Action

1

Right-click the Logical Networks node in the SYSTEM PROJECT pane.

Result: A context menu opens.

2

Click New Logical Network.

Result: A new logical network is created with properties set to default values.

Creating Logical Networks from a Device Interface

To create a logical network from the interface of a device that exists in your system project, proceed as follows.

Step

Action

1

Select the device in one of the views (for example, the SYSTEM PROJECT pane or a physical view).

2

In the CONFIGURATION tab of the PROPERTIES pane, click the Logical Network list of under an IP Address.

Result: The list opens showing existing logical networks.

3

Click New .

Result: The Create Logical Network dialog box opens.

4

Edit the name if necessary and configure the properties of the logical network.

5

Click OK .

Result:

  • The logical network is created and appears in the SYSTEM PROJECT pane.

  • The next available IP address on the newly created logical network is assigned or reassigned to the corresponding ports.

NOTE: If not enough IP addresses are available on the logical network, the logical network is created but no IP address is assigned.

Logical Network Actions

For a description of the commands that are available for logical networks, refer to the topic describing their context menu in the SYSTEM PROJECT pane.

Logical Network Properties

The table describes the attributes that appear in the PROPERTIES pane when you select a logical network.

Attributes

Default value

Description

Name

–

Editable name of the logical network.

The software accepts only names that are unique within the system project.

Subnet Address

192.168.0.0

IP address whose host ID is 0 (based on the subnet mask) to indicate the address of the subnet.

NOTE: Modifying this attribute does not modify the IP addresses of device interfaces that belong to this logical network. You need to reassign IP addresses.

Subnet Mask

255.255.255.0 (class C)

Lets you define the portion of the IP address that represents the subnet address and, as a result, the range of host addresses on this subnet.

NOTE: Modifying this attribute does not modify the IP addresses of device interfaces that belong to this logical network in case the logical network does not have enough addresses anymore. You need to reassign IP addresses.

Gateway Address

192.168.0.254

IP address of the default gateway of the network.