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January 28, 2014
9:49, EET
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Soeren S
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Hi, We have a Java application, which a simple need, we just need to read 2 registers from a KepWareEX OPC Server. I’m trying a simple solution like:

UaClient client = new UaClient(url);
…
NodeId id = new NodeId(0, “s=Channel1.Device1.Tag1”);
DataValue val = client.readValue(id);

I get “NodeIDUnknown” from the OPC server (in all name spaces). Should this not be OK or is there something I have missed?

January 28, 2014
13:14, EET
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Jouni Aro
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If you cannot find the tags from the address space, I suggest you ask Kepware what is the correct format for the NodeIds.

January 29, 2014
13:12, EET
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Soeren S
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Thanks. I found the correct syntax, using the Java Client. It was the name space that was wrong.

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