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

FB-Name			UA_NodeGetHandle
This Function Block is used to get the node handle.
VAR_INPUT
B	Execute	BOOL	FB performs its task on rising edge on this input.
B	ConnectionHdl	DWORD	Connection handle.
B	NodeID	STRUCT	See UANodeID
B	Timeout	TIME	Time to response.
VAR_OUTPUT
B	NodeHdl	DWORD	Node handle.
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.
B	ErrorID	DWORD	Error code.
Notes: The NodeHdl is a reference to the internal management object for the node in the client. But the client shall also register the node at the server (“RegisterNode”). This enables the OPC UA Server to optimize the communication. The scope of the NodeHdl is the connection. So a NodeHdl is unique for a connection but could be equal to a NodeHdl of another connection. This FB is deprecated and just for backward compatibility – better use UA_NodeGetHandleList