4 The Discovery Process

4.3 The Discovery Process for Clients to Find Servers

4.3.3 Simple Discovery with a DiscoveryUrl

Every Server has one or more DiscoveryUrls that allow access to its Endpoints. Once a Client obtains (e.g. via manual entry into a form) the DiscoveryUrl for the Server, it reads the EndpointDescriptions using the GetEndpoints Service defined in OPC 10000-4.

The discovery process for this scenario is illustrated in Figure 2.

Figure 2 – The Simple Discovery Process