FUNCTION_BLOCK Get_Attributes_All EXTENDS BaseService
This function block is used for querying the attribute of a specific instance of a CIP object.
Note
Data received and send needs to be swapped. See parent folder.
PROGRAM PLC_PRG
VAR
data : ARRAY[0..500] OF BYTE;
getAttributeAll : ENIP.Get_Attributes_All ;
udiReceivedData : UDINT;
END_VAR
getAttributeAll(
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 *)
pData:= ADR(data), (* data buffer *)
udiDataSize:= SIZEOF(data), (* size of the data buffer *)
xDone=> ,
xBusy=> ,
xError=> ,
eError=> ,
udiReceivedDataSize=> udiReceivedData ); (* if the request was successful, udiReceivedData contains the number of bytes which have been received *)
;
InOut:
|
Scope |
Name |
Type |
Comment |
Inherited from |
|
Input |
itfEtherNetIPDevice |
IEtherNetIPService |
EtherNet/IP Device which implements the EtherNet/IP Services interface |
BaseService |
|
eClass |
Class which shall perform the service |
BaseService |
||
|
dwInstance |
DWORD |
Instance which shall perform the service (0: Class level, 1..x: Instance level) |
BaseService |
|
|
Output |
eError |
Error (0-255: CIP Error; 256-x: Library Error) |
BaseService |
|
|
Input |
pData |
POINTER TO BYTE |
Data buffer |
|
|
udiDataSize |
UDINT |
Size of buffer |
||
|
Output |
udiReceivedDataSize |
UDINT |
Size of the received data |
