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