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FB-Name |
UA_NodeGetHandle |
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This Function Block is used to get the node handle. |
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VAR_INPUT |
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B |
Execute |
BOOL |
FB performs its task on rising edge on this input. |
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B |
ConnectionHdl |
DWORD |
Connection handle. |
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B |
NodeID |
STRUCT |
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B |
Timeout |
TIME |
Time to response. |
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VAR_OUTPUT |
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B |
NodeHdl |
DWORD |
Node handle. |
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B |
Done |
BOOL |
FB has completed its task. |
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B |
Busy |
BOOL |
The FB is not finished and new output values are to be expected. |
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B |
Error |
BOOL |
Signals that an error has occurred within the FB. |
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B |
ErrorID |
DWORD |
Error code. |
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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 |
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UA_NodeGetHandle |
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BOOL |
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Execute |
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NodeHdl |
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DWORD |
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DWORD |
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ConnectionHdl |
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Done |
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BOOL |
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STRUCT |
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NodeID |
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Busy |
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BOOL |
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TIME |
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Timeout |
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Error |
|
BOOL |
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ErrorID |
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DWORD |
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