GetMQTTDeviceTwin (FB)¶

FUNCTION_BLOCK GetMQTTDeviceTwin EXTENDS CBML.ETrigTo

Function block to read the device twin of the connected device.

InOut:

Scope	Name	Type	Comment	Inherited from
Input	xExecute	BOOL	Rising edge: Starts defined operation FALSE: Resets the defined operation after ready condition was reached	ETrigTo
	udiTimeOut	UDINT	Max. operating time for executing [µs], 0: No operating time limit	ETrigTo
Output	xDone	BOOL	Ready condition reached	ETrigTo
	xBusy	BOOL	Operation is running	ETrigTo
	xError	BOOL	Error condition reached	ETrigTo
Input	pbPayload	POINTER TO BYTE	Pointer to the receive buffer (device twin)
	udiMaxPayloadSize	UDINT	Maximum size of the receive buffer
Inout	azureMQTTClient	AzureMQTTClient	Reference to AzureMQTTClient
Output	eError	MQTT.MQTT_ERROR	Error code
	udiPayloadSize	UDINT	Length of the device twin