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Industrial Electronic Devices
MQTT:
This section is used to define the main parameters of MQTT line. The means of the
fields are:
In the field
"Server
URL" the URL or the IP Address of the MQTT Server is
defined;
In the field
"Server
Port" the port used for MQTT communication is defined;
In the field
"Client
ID" the Client ID of the converter is defined (if ned);
In the field
"Keep Alive
message is sent on MQTT is defined;
If the field
"Clean
Session" is checked, the last MQTT messages are deleted
by the Server and the Client in case of missing ACK. If unchecked, the
Server and the Client hold the last MQTT messages and, in case of incorrect
disconnection or missing ACK, they try to send again them since all the ACK
messages are exchanged correctly (valid only for QoS 1 and QoS 2);
If the field
"Will
Flag" is checked, the converter will publish the Will topic at
the connection to the Server. With this feature, in case of incorrect
disconnection, the Server will publish this topic to all the MQTT Clients that
subscribed it;
In the field
"Topic Name
In the field
"Message
Will" the payload of the Will message is defined;
In the field
"Retained
Retain flag enabled. In this way, the Server will hold the last Will message;
In the field
"QoS
Will" the QoS type for Will message is defined;
Im the field "Username" the username for the connection to the MQTT server is defined;
In the field "Password" the password for the connection to the MQTT server is defined;
In the field
"Send Time
ADFweb.com S.r.l.
(seconds)" the delay with which the Keep Alive
Will" the topic used for Will message is defined;
Will" the converter will send the Will message with
(seconds)" the delay with which the MQTT messages are published is defined.
User Manual BACnet Slave / MQTT
Document code: MN67938_ENG
Revision 1.000
Figure 3d: "Set Communication
Page 20 of 34
MQTT" window
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