Mqtt Set Topic - ADF Web HD67B19-B2 User Manual

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MQTT SET TOPIC:

By Pressing the "MQTT Set Topic" button from the main window for SW67B19 (Fig. 2) the window "Set MQTT Topics" appears (Fig. 10).
This section is used to define the MQTT topics where the converter will publish the data from OPC UA and the topic that the converter will
subscribes for writing the data to OPC UA.
MQTT P
UBLISH
Figure 10a: "Set MQTT Topics
The means of the fields are:
In the field "Topic" the MQTT topic is defined;
If the field "Retained" is defined, the retained flag is enabled. The MQTT server will hold the last topic published;
In the field "QoS" the QoS level is defined;
In the field "Data Type" the type of data to use is defined;
In the field "Dimension" the dimension in byte of the data is defined;
In the field "Position" the starting byte of the internal memory array where taking the data is defined;
In the field "Template" the structure of the MQTT payload is defined. With a double click on it, it is possible to open a window for
editing it;
If the field "On Change" is checked, the converter publishes the topic when the data from OPC UA are changed;
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 MQTT Publish" window
User Manual OPC UA Client / MQTT
Document code: MN67B19_ENG Revision 1.000
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