Every Serverhas one or more DiscoveryUrlsthat allow access to its Endpoints. Once a Clientobtains (e.g. via manual entry into a form) the DiscoveryUrlfor the Server, it reads the EndpointDescriptionsusing the GetEndpoints Service defined in OPC 10000-4.

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

image005.png

Figure 2– The Simple Discovery Process