init Ua Client With SIMATIC NET PC Software V15 and V13

[liufj]

with version 0.2.1 ,
I can init uaClient(endpoint,ApplicationName,ApplicationUri) with SIMATIC NET PC Software V13 ,but can not init ua Client with SIMATIC NET PC Software V15,
How can I initClient with SIMATIC NET PC Software V15 ? thanks!

[kevinherron]

Sorry but you’ll need to provide much more information about why it’s not working for you and what you’re trying to do. Any stack traces or error messages etc...

[liufj]

this code is working with SIMATIC NET PC Software V13, when I use SIMATIC NET PC Software V15 the client return null.

 private OpcUaClient initClient(String endpointUri, String applicationUri, String applicationName)
		throws Exception {
	logger.info("startClient():" + endpointUri);//  opc.tcp://CTOS-PC:55105
	EndpointDescription[] endpoints = UaTcpStackClient.getEndpoints(endpointUri).get();
	EndpointDescription endpoint = Arrays.stream(endpoints)
			.filter(e -> e.getSecurityPolicyUri().equals(SecurityPolicy.None.getSecurityPolicyUri())).findFirst()
			.orElseThrow(() -> new Exception("no desired endpoints returned"));

	OpcUaClientConfig clientConfig = OpcUaClientConfig.builder()
			.setApplicationName(LocalizedText.english(applicationName))// "SimaticNet OpcUaServer"
			.setApplicationUri(applicationUri)// "urn:Siemens:SimaticNet:OpcUaServer:S7OPT"
			.setEndpoint(endpoint) // .setRequestTimeout(uint(60000))
			.build();
	OpcUaClient _client = new OpcUaClient(clientConfig);
	return _client;
}

[kevinherron]

What is returning null? You’re not really making much sense. You don’t need to set those application name and URI values to match the server either; those are meant to identify your client.

Is the endpoints list empty or null? Can your machine resolve the address “CTOS-PC”?

[liufj]

it can resolve the address “CTOS-PC” ,and can read node and write node, when I use SIMATIC NET PC Software V15( OPC Server) ,new OpcUaClient(clientConfig) is null.

[kevinherron]

I think you are misunderstanding what is happening. new OpcUaClient(clientConfig) can’t be null. It either gets created or possibly some Exception is thrown. You can’t successfully call a constructor for some object and end up with a null value.

[liufj]

Thank you for helping me lock in the wrong points,I'll go for further tests next week.