ETC_SoE_IDNRead4 (FB)¶

FUNCTION_BLOCK ETC_SoE_IDNRead4

Function block to read an IDN from an SoE EtherCAT Slave with 4 Bytes

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.
	xAbort	BOOL	FALSE	TRUE: Action is stopped immediately and all outputs are reset to their initial values.
	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
	wIDN	WORD		The IDN to read
	byElem	BYTE	0	2 Name, 3 Attribute, 4 Unit, 5 Minimum, 6 Maximum, 0 or 7 Value
	udiTimeOut	UDINT		Timeout for operation in ms
	byDrive	BYTE	0	If the device is a multidrive with this input the drive number could be selected
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
	eError	ETC_SOE_ERROR		If xError is true then this output shows the error reason
	udiSercosError	UDINT		Error code as received from the EtherCAT slave
	abyData	ARRAY [1..4] OF BYTE		Contains the read data
	usiDataLength	USINT		Number of Bytes that could be read