MQTT Publisher

Allows to publish messages to MQTT Broker defined topic. Any MQTT client subscribed to that topic receives the messages
BrowseName
MQTTPublisher
SuperType
Object(BaseObjectType)

Properties

Name
BrowseName
DataType
Description
Sampling mode
SamplingMode
None - automatic recording disabled, can record by invoking the Sample method. Periodic - at regular intervals records the values of all the selected variables. Value change - at regular intervals records only the values of the selected variables that have changed since the previous sampling
Sampling period
SamplingPeriod
Interval in hours, with millisecond precision, between one sampling and the next, in the Periodic mode
Polling time
PollingPeriod
Interval in hours, with millisecond precision, between one sampling and the next, in the Value change mode
Folder
Folder
This folder contains variables whose values will be sent to the broker
Topic
Topic
Defines MQTT topic on which we are sending/publishing data
QoS
QoS
MQTT Quality of Service, defines the guarantee of delivery for a specific message (0, 1, 2). 0 - At most once (may lose messages). 1 - At least once (guarantees the message delivery but potentially duplicate messages). 2 - Exactly once (ensures messages are delivered exactly once without duplication)
Retain
Retain
Retain message on the topic even after read. True - enables Retain functionality. False - disables Retain functionality
PF Enabled
PFEnabled
True - enables payload formatter. False - disables payload formatter, default format is used
PF Header
PFHeader
Defines the header template in MQTT payload. See Help for details and examples
PF Record
PFRecord
Defines the record template for each record in MQTT payload. See Help for details and examples
Payload update timestamp
PayloadUpdateTimestamp
Defines last payload update time
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