Hi,

I’m trying to get a communication going between some hardware (OPC UA server) and a Java-based client. My end goal is writing data to the server.

I’ve managed to connect and read.
However, the client always reads value “2”. All the variables are initiated on 0 (or empty String).

To test my findings I also set up a localhost server (also all tags created, but values 0) and I got the same results.

I know that the values simply aren’t “2”, since I can easily verify using UaExpert.

Thanks in advance.

Input code:

UaClient client = new UaClient(“opc.tcp://localhost:48010”);
client.setSecurityMode(SecurityMode.NONE);
client.connect();
DataValue value = client.readAttribute(new NodeId(2, 6055), Attributes.NodeClass);
//client.writeAttribute(new NodeId(2, 6055), Attributes.NodeClass, 8.2654);
System.out.println(value);
client.disconnect();

This is my output:

DataValue(value=2, statusCode=GOOD (0x00000000) “”, sourceTimestamp=null, sourcePicoseconds=0, serverTimestamp=09/06/19 09:15:37.7751737 GMT, serverPicoseconds=0)