The OPC-UA architecture is very similar to the Standard architecture, but with only the Ignition OPC-UA module installed on the server. In this configuration, the Ignition gateway acts as a dedicated OPC-UA server. Any remote OPC-UA client, including other Ignition gateways, with network access can connect to the server and read and write data.
This installation is useful for aggregating data from many sites. The low installation cost and the secure, painless connections provided by OPC-UA make it easy to access and collect data that wasn't previously available on the network.