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.. _`.fld-FinderOpta.fld-Functions.fld-Send.MQTT_SendTopicReal`:


.. index::
   single: MQTT_SendTopicReal

.. _`MQTT_SendTopicReal`:

``MQTT_SendTopicReal`` (FUN)
----------------------------

FUNCTION MQTT_SendTopicReal : WORD




This function publishes a real value to the specified MQTT topic.

The output ``sent`` is set to ``TRUE`` when the publish operation has been
completed.





InOut:
    +--------+------------------------+-----------------+------------------------------------------------------------+
    | Scope  | Name                   | Type            | Comment                                                    |
    +========+========================+=================+============================================================+
    | Return | ``MQTT_SendTopicReal`` | ``WORD``        | Status code returned by the runtime (0 means "no errors"). |
    +--------+------------------------+-----------------+------------------------------------------------------------+
    | Inout  | ``id``                 | ``WORD``        | Operation identifier used by the runtime.                  |
    +--------+------------------------+-----------------+------------------------------------------------------------+
    | Input  | ``topic``              | ``STRING(127)`` | MQTT topic name.                                           |
    +        +------------------------+-----------------+------------------------------------------------------------+
    |        | ``payload``            | ``REAL``        | Real value to publish.                                     |
    +        +------------------------+-----------------+------------------------------------------------------------+
    |        | ``qos``                | ``WORD``        | Quality of Service level.                                  |
    +        +------------------------+-----------------+------------------------------------------------------------+
    |        | ``flags``              | ``WORD``        | Publish options: 0-none, 1-retain.                         |
    +--------+------------------------+-----------------+------------------------------------------------------------+
    | Output | ``sent``               | ``BOOL``        | ``TRUE`` when the publish operation has been completed.    |
    +--------+------------------------+-----------------+------------------------------------------------------------+







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