Project > Project properties > MQTT Publisher tab

If you want to use Client - Server architecture in your system and use it with MQTT broker you have to check Enable MQTT Publisher:

mqttpublisher

Below description of the properties:

Property	Description
Enable MQTT Publisher	Check if you want to enable MQTT publisher.
Broker URL	Broker URL of the MQTT server.
Username	Username of the MQTT broker.
Password	Password of the MQTT broker.
Client ID	Some brokers need Client ID. If you left client ID unfilled publisher will generate ClienID itself.
Write topic format	Some cloud brokers need formatted topic. See IBM cloud example. You can left this field empty.
Read topic format	Some cloud brokers need formatted topic. See IBM cloud example. You can left this field empty.
QoS	Choose QoS of MQTT messages.
Enable TLS/SSL	Check Enable TLS/SSL if you want to use server certiﬁcate for encryption messages.
Certiﬁcate ﬁlename	Certiﬁcate ﬁlename. File should be placed in /private/ folder in the directory where TeslaSCADA2 is installed.
Enable Client Certiﬁcate	Check it if you want to use client certiﬁcate for encryption messages.
Client certiﬁcate	Client certiﬁcate ﬁlename. File also should be placed in /private/ folder
Client Private key	Client private key ﬁlename. File also should be placed in /private/ folder
Private key password	Private key password.
PEM formatted	Check PEM formatted if your certiﬁcate and key ﬁles are PEM formatted.

MQTT publisher will send tag's values collected during project running on MQTT broker you want. MQTT subscribers will collect this values and represent it on devices you want. If you don't use Write topic format and Read topic format fields publisher’s topics are consists of the «name of the project +/Tags/+tagname» for tags and «name of the project+/Events/+tagname» for events. If you use Write topic format and Read topic format tags replace {tagname} keyword.