AWSIoTGetDeviceShadow (FB)¶

FUNCTION_BLOCK AWSIoTGetDeviceShadow EXTENDS CBML.ETrigTo

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

InOut:

Scope	Name	Type	Initial	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 shadow)
	udiMaxPayloadSize	UDINT		Maximum size of the receive buffer
	eQoS	QOS		Quality of service level (QoS)
	sClientId	REFERENCE TO STRING(255)	0	The name of another thing. The input sClientId can be used to access device shadows of other things. if 0, then the clientId from AWSIoTClient will be used.
Inout	awsIoTClient	AWSIoTClient		Reference to AWSIoTClient
Output	eError	MQTT.MQTT_ERROR		Error code
	udiPayloadSize	UDINT		Length of the device shadow
	mQTTPublishProperties	MQTTPublishProperties		Last received publish properties