The setting for a PubSub AliasName Publisher are fixed as defined in D.2. Only the following items can be changed as part of configuring the Publisher.
See OPC 10000-14 for additional details on data key frames, data delta frame,PublishingIntervals and security settings.
- PublishingInterval that is defined for the published messages.
- The KeyFrameCount that is defined for the published messages. It is the multiplier of the PublishingInterval that defines the maximum number of times the PublishingInterval expires before a data key frame message is sent.
- The KeepAliveTime that is defined for the published messages. It is the rate at which an empty message is sent, if no data messages are published.
- The SecurityMode that is associated with the published messages. It is the type of security (None, Sign, SignAndEncrypt) assigned to the messages.
- The SecurityGroupId that is associated with the published messages. It is the unique identifier for a SecurityGroup within an SKS.
- The SecurityKeyServices that is associated with the published messages.
- The Address that is associated with the published messages. It defines a multi-cast address to which all publish messages shall be directed. This can be configured to allow subsets of Servers to direct the notification message to a specific GDS or aggregating Server.
- The Enabled that is associated with the PubSubConnection for the published messages. This flag can be used to enable the Servers AliasName PubSub Notifications feature.
A Server that supports this feature would typically have this feature pre-configured, allowing notification to begin on startup of the Server.