3 Terms, definitions and conventions ToC Previous Next

3.1 Terms and definitions ToC Previous Next

For the purposes of this document the terms and definitions given in OPC 10000-1, OPC 10000-2 and OPC 10000-3 as well as the following apply.

3.1.1 CertificateDigest

a short identifer used to uniquely identify an X.509v3 Certificate.

Note 1 to entry: This is the SHA1 hash of DER encoded form of the Certificate.

3.1.2 DataEncoding

a way to serialize OPC UA Messages and data structures.

3.1.3 DevelopmentPlatform

a suite a tools and/or programming languages used to create software.

3.1.4 Mapping

specifies how to implement an OPC UA feature with a specific technology.

Note 1 to entry: For example, the OPC UA Binary Encoding is a Mapping that specifies how to serialize OPC UA data structures as sequences of bytes.

3.1.5 SecurityProtocol

ensures the integrity and privacy of UA Messages that are exchanged between OPC UA applications

3.1.6 StackProfile

a combination of DataEncodings, SecurityProtocol and TransportProtocol Mappings

Note 1 to entry: OPC UA applications implement one or more StackProfiles and can only communicate with OPC UA applications that support a StackProfile that they support.

3.1.7 TransportConnection

a full-duplex communication link established between OPC UA applications.

Note 1 to entry: A TCP/IP socket is an example of a TransportConnection.

3.1.8 TransportProtocol

a way to exchange serialized OPC UA Messages between OPC UA applications

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