Get_Attribute_List (FB)¶

FUNCTION_BLOCK Get_Attribute_List EXTENDS BaseService

This function block returns the contents of the selected gettable attributes fo the specified CIP Object class or instance.

PROGRAM PLC_PRG
VAR
    arData            : ARRAY[0..5] OF BYTE;
    getAttributeList : ENIP.Get_Attribute_List ;
    arResponse      : ARRAY [0..11] OF BYTE;
END_VAR

getAttributeList(
    xExecute:= ,
    itfEtherNetIPDevice:= EtherNetIP_Adapter,    (* instance of the device (instance is found in the I/O Mapping of the device) *)
    eClass:= ENIP.CIPClass.TCPIPInterfaceObject, (* cip class which contains the desired attribute *)
    dwInstance:= 1,                              (* value of 0 is class level, range from 1..x is instance level *)
    pRequestData := ADR(arData);                    (* data buffer *)
       udiRequestDataSize := SIZEOF(arData);        (* size of the data buffer *)
       pResponseData := ADR(arResponse);            (* data buffer from the response *)
       udiResponseDataSize := SIZEOF(arResponse);   (* size of the data buffer from the response *)
    xDone=> ,
    xBusy=> ,
    xError=> ,
    eError=> );
    ;

InOut:

Scope	Name	Type	Comment	Inherited from
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.	ETrig
Output	xDone	BOOL	TRUE: Action successfully completed	ETrig
	xBusy	BOOL	TRUE: Function block active	ETrig
	xError	BOOL	TRUE: Error occurred, function block aborts action FALSE: No error	ETrig
Input	itfEtherNetIPDevice	IEtherNetIPService		BaseService
	eClass	CIPClass		BaseService
	dwInstance	DWORD		BaseService
Output	eError	ERROR		BaseService
Input	pRequestData	POINTER TO BYTE
	udiRequestDataSize	UDINT
	pResponseData	POINTER TO BYTE
	udiResponseDataSize	UDINT
Output	udiReceivedDataSize	UDINT