UA_NodeGetInformation – OPC UA Client Function Blocks for IEC 61131-3

FB-Name		UA_NodeGetInformation
This Function Block is used to get the node information.
VAR_INPUT
B	Execute	BOOL	On rising edge node information will be read.
B	ConnectionHdl	DWORD	Connection handle.
B	NodeID	UANodeID	See UANodeID
B	Timeout	TIME	Time to response.
VAR_OUTPUT
B	Done	BOOL	FB has completed its task.
B	Busy	BOOL	The FB is not finished and new output values are to be expected.
B	Error	BOOL	Signals that an error has occurred within the FB.
E	ErrorID	DWORD	Error code.
B	NodeGetInfoErrorIDs	ARRAY [0 .. 22] OF DWORD	Array of DWORD. Contains an error code for each valid element of the NodeHdls array. Shall be same size like number of UANodeInformation elements. This struct has 20 elements. The NodeGetInfoErrorIDs have the same indices as in OPC 10000-6 specification defined, e.g. (Value = 13). The size of the array is from 0 to 22 where elements 0 and 1 are not being used.
B	NodeInfo	UANodeInformation	See UANodeInformation
Notes: Depending on the responded NodeClass (see UANodeClassMask) the corresponding NodeGetInfoErrorID shall have the following errors. Elements, which are not in this NodeClass existing shall have PLCopenUA_Bad_AttributeIdUnknown. Elements, which should exist but don’t, shall have PLCopenUA_Bad_AttributeIdInvalid. Valid elements shall have OpcUa_Good.