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Scenario: "Virtual Redundancy": vPLC + vPLC + License Server + Edge Gateway on One System

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Requirements

Configuration of the container network:

To ensure the functionality of the redundancy, the controllers used must have static IP addresses. If an IP address changes, then the connection to the device cannot be automatically re-established.

The networks must be configured directly via the container engine used. To do this, connect to your Linux Host PC via SSH.

In the terminal, enter the following command (the IP address, subnet, and the name of the network can be freely selected).

docker network create --subnet=192.168.5.0/24 mynetwork

Configuration of the instances

Now you need to specify a separate IP address for the vPLC instances and assign the network.

Table 6. Virtual PLC 1:

Genericcommands

--ip 192.168.5.1

Static IP address of the instance. The generic command --ip is allowed only when the instance is in a container network with a corresponding subnet.

Network

mynetwork

Container network for the configured instances



Table 7. Virtual PLC 2:

Genericcommands:

--ip 192.168.5.2

Static IP address of the instance. The generic command --ip is allowed only when the instance is in a container network with a corresponding subnet.

Network:

mynetwork

Container network for the configured instances



The virtual Edge Gateway then also needs to be added to the network.

Table 8. Virtual Edge Gateway:

Network

mynetwork

Container network for the configured instances



Starting the virtual instances

In the vPLCs section, click the Start All button. The status of the configured virtual instances changes to Running.

For the redundancy feature, follow the instructions Getting Started – Configuring the redundancy system

Scenario: "Virtual Redundancy": vPLC + vPLC + License Server + Edge Gateway on Two Systems

_rtsl_img_scenario_virtual_redundancy_2.png

Requirements

  • Scenario

    Successful setup of the Scenario: "Virtual Redundancy": vPLC + vPLC + License Server + Edge Gateway on One System scenario.

  • Hardware

    The following devices are also required:

    Host for additional vPLCs, named Linux Host PC 2 in the diagram. Requirements for this host

    • Linux operating system and Docker must be installed and SSH configured.

    • Real-time capable network to the Linux Host PC to ensure deterministic transmission of time-sensitive data packages.

Additional configuration of the instances on both systems. For more information, see: Configuration of the instances

The following must be configured for the two instances on the respective hosts.

Ports

1205:1205

This is the default port for redundancy communication. You can also change this port in the redundancy configuration interface in the project. Note, however, that the change must also be made in the configuration of the corresponding instances.

Starting the virtual instances

In the vPLCs section, click the Start All button. The status of the configured virtual instances changes to Running.

For the redundancy feature, follow the instructions Getting Started – Configuring the redundancy system

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