MQTT Devices
MQTT protocol is using for data exchenge between MQTT broker (server) and a Edge/Embedded device.
MQTT Device definations can be done for each Channel.
System provide automatically generated Client ID, Username and Password for each MQTT device.
Each MQTT device have its own Time Zone and Permission.
Transaction data by MQTT is using JSON. All fields should be defined in JSON with its values. Missing fields will be recorded as empty (null)