ETC_VoE_SendReceive (FB)¶

FUNCTION_BLOCK ETC_VoE_SendReceive

fuhction block to read and write VoE (Vendor over EtherCAT) specific mailbox requests

InOut:

Scope	Name	Type	Initial	Comment
Input	xExecute	BOOL		Rising edge: ACTION starts Falling edge: Resets outputs If a falling edge occurs before the function block has completed its action, the outputs operate in the usual manner and are only reset if either the action is completed or in the event of an error. In this case, the corresponding output values (xDone, xError) are present at the outputs for exactly one cycle.
	usiCom	USINT	1	index of master 1: first ETC master
	uiDevice	UINT		The physical slave address to access the EtherCAT slave
	usiChannel	USINT	1	not used in the moment because channel is set automatically
	udiVendorID	UDINT		the required vendor id for the VoE prototcol
	uiVendorType	UINT		the required vendor type for the VoE protocol
	uiInputMaxLength	UINT		size of buffer for the input data (max 506 bytes)
	pbyInputData	POINTER TO BYTE		pointer to the input data
	uiOutputLength	UINT		size of output data (max 506 bytes)
	pbyOutputData	POINTER TO BYTE		pointer to the output data
	udiTimeout	UDINT		the timeout in milliseconds
Output	xDone	BOOL		TRUE: Action successfully completed
	xBusy	BOOL		TRUE: Function block active
	xError	BOOL		TRUE: Error occurred, function block aborts action, FALSE: No error
	xTimeoutError	BOOL		TRUE: request timed out
	uiSizeReceived	UINT		Number of bytes received