8. Publisher Block

The Publisher block represents a DDS publisher entity.

In DDS, a publisher is “an object responsible for data distribution. It may publish data of different data types.”

This block is optional on a DDS Simulink model diagram. If it is not present on a model diagram, each writer will create a default publisher.

DDS Publisher Block
Port Type Optional Name Description Output consumed by
Input yes pp DDS Domain Participant entity instance  
Output no ppub DDS Publisher entity instance Writer

8.1. Publisher Block Parameters

Publisher Block Parameters

8.1.1. Ports Tab

The Ports tab allows the user to toggle on or off optional ports.

8.1.2. QoS Tab

The QoS tab is used to set the QoS profile. By default, the OSPL default profile is used.

In DDS - The Data-Distribution Service (DDS) relies on the usage of QoS. A QoS (Quality of Service) is a set of characteristics that controls some aspect of the behavior of the DDS Service.

Each DDS block has an associated QoS profile. By default, the OSPL default profile is used. An XML file that specifies QoS profiles can be used to set the QoS of a DDS block.

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