Publisher dataset properties

The following table shows the publisher dataset properties.
Field
Description
Name
Enters the publisher dataset name. The name will not be sent to the broker, and is used for FactoryTalk Linx Gateway identification.
Description
Enters the publisher dataset description.
Topic
Enters the topic name. The topic is used for publishing data.
Mode
Selects the data sampling mode.
  • Change in value
    Only data changes will be sent to the broker in a data sampling cycle.
  • Periodic
    All data will be sent to the broker in a data sampling cycle.
Period (second)
Sets the interval for data sampling.
Payload Format
Sets the payload formats.
  • FactoryTalk Optix Format
    FactoryTalk Optix can use the FactoryTalk Linx Gateway MQTT data.
  • Rich Format
    FactoryTalk Linx Gateway MQTT provides the rich MQTT structure that is the same as the data from FactoryTalk Edge Gateway MQTT.
  • Flat Format
    FactoryTalk Linx Gateway MQTT provides the flatten MQTT structure for Plex APM applications that is the same as the flat data from FactoryTalk Edge Gateway MQTT.
For more information, see Payload format examples.
Data to send
Select tags' data content that you want to send to the broker. The options you selected decide the data in the payload format.
Quality of Service (QoS)
Defines the effort produced by the broker or client to ensure that a message is received. The broker sends messages at any QoS level.
  • At most once (QoS 0)
    The message is delivered once, with no confirmation.
  • At least once (QoS 1)
    The message is delivered at least once, with confirmation required.
  • Exactly once (QoS 2)
    The message is delivered once by using a four-step handshake.
Max Payload Size (kB)
Configures the max payload size. If a message exceeds the size limit, it will be divided into two or multiple packages to deliver.
Enable Retain on Broker
Allows the broker to keep the last known message on a topic.
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