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Scope: Core (OPC-10000-*) All specs

4 result(s) for ReverseHello

OPC-10000-6 – OPC Unified Architecture - Part 6: Mappings

7.1.2.2 Message Header

Hello Message . ACK an Acknowledge Message . ERR an Error Message . RHE a ReverseHello Message . The SecureChannel layer defines additional values which the OPC UA Connection Protocol layer shall accept. Reserved
OPC-10000-6 – OPC Unified Architecture - Part 6: Mappings

7.1.2.6 ReverseHello Message

ReverseHello Message The ReverseHello Message has the additional fields shown in Table 77 . Table 77 - OPC UA Connection Protocol ReverseHello Message Name Data Type Description ServerUri String The ApplicationUri ... URLs returned by the GetEndpoints Service . For connection-based protocols, such as TCP, the ReverseHello Message allows Servers behind firewalls with no open ports to connect to a Client
OPC-10000-6 – OPC Unified Architecture - Part 6: Mappings

7.1.3 Establishing a connection

connection. If the Server creates the TransportConnection the first Message shall be a ReverseHello sent to the Client . If the Client accepts the connection, it sends a Hello message back ... TransportConnection after a period of time if it does not receive a Hello or ReverseHello Message . This period of time shall be configurable and have a default value which does
OPC-10000-12 – OPC Unified Architecture - Part 12: Discovery and Global Services

7.10.23 ServerEndpointDataType

EndpointDescriptions . The ReverseConnectUrls are the URLs that the Server connects to and sends a ReverseHello . The EndpointDescriptions generated from the ServerEndpoint are available to Clients connecting via the socket. Table