SendMQTTMessage (FB)¶

FUNCTION_BLOCK SendMQTTMessage

Function block for sending D2C messages via MQTT to Azure IoT Hub.

InOut:

Scope	Name	Type	Comment
Input	xExecute	BOOL	Rising edge will send the message |pbPayload|
	udiTimeOut	UDINT	Time out in µs, 0: no time out
	pbPayload	POINTER TO BYTE	Pointer to the message
	udiPayloadSize	UDINT	Size of the message |pbPayload|
	sPropertyBag	STRING	Property bag (optional) Example: RFC 2396-encoded(<PropertyName1>)=RFC 2396-encoded(<PropertyValue1>)&RFC 2396-encoded(<PropertyName2>
Inout	azureMQTTClient	AzureMQTTClient	Reference to AzureMQTTClient
Output	xError	BOOL	TRUE, if an error occurred
	xBusy	BOOL	TRUE, while sending the message
	xDone	BOOL	TRUE, if the message was sent successfully
	eError	MQTT.MQTT_ERROR	Error code