Problems with Read and Write services in getting started examples of the SDK

[diana]

Dear UA Team,

I know that my question could appear a bit silly but I'm a newbie and I'm stuck with the following problem.

I'm using OPC UA SDK for your preferred language (C++ under linux). I've compiled all the servers and clients in server_gettingstarted/ and client_gettingstarted/, respectively. In a terminal, I launch server_lesson07 and in another terminal clent:lesson06. The client performs the connection with the server but when it start executing read and write, the following error message is shown:

** Try to call read for configured node ids
** Error: UaSession::read failed [ret=BadNothingToDo]
** Try to call write for configured node ids
** Error: UaSession::write failed [ret=BadNothingToDo]

I would be very grateful if you could help me in solving this problem. Any advice would be very useful for me.

Thanks in advance,

Diana

[diana]

From the following post:

http://www.unified-automation.com/forum ... y-step.htm

Does it mean that I cannot use the sample clients in clients_gettingstarted with the sample server in servers_gettingstarted? If so, is there an OPC UA Demo Server for linux?

Thanks,

Diana

[Support Team]

If you download the "C++ based OPC UA Client/Server SDK Bundle" that contains the DemoServer already.

That post should answer the rest of the question:
http://www.unified-automation.com/foru ... ssons.htm

Best Regards,
Unified Automation Support Team