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dOPC Client Toolkit
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ua.client.TdOPCUAClient.OnServerStatusRead
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dOPC Client Toolkit
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OnServerStatusRead will be fired every "KeepAlive" milliseconds.
If KeepAlive has a value greater than 0, OnServerStatusRead fires every given KeepAlive milliseconds. The event gives the actual ServerStatus (uaServerStatusDataType), which is a mandatory node (ns=0;i=2256) of an OPC UA server. If the client is not able to read the ServerStatus then a OnServerShutdown will be raised.
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Parameter |
Description |
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Sender |
Is a pointer to the parent TdOPCUAClient object |
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Statuscode |
The statuscode of the read call |
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ServerStatus |
The result of the read call. Normally the server status object, but also NIL is possible e.g. if the server status not exits at the server side. |
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Shutdown |
Gives you the choice whether a shutdown should be raised or not. By default a shutdown will be only raised if the server status read call raise an exception, otherwise shutdown is false. |
If you use this event then you have to add ua.buildintypes, ua.datatypes in your uses clauses.
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