Read problem - by: federica

Hi,
I'm using your SDK (QuickOPC 2018.1, in particular OPC-UA under COM with C++) since last year.
I'm facing a strange problem from a customer with his OPC-UA server (OMRON).

In order to analize the problem, I'm using your application "EasyOpcUADemo".


"Browser servers..." shows the OPC-UA server without problems.
"Browse data..." shows available variables without problems.
I specify "Value to write" and press "Write value": no problem.
I press "Subscribe" and fields on the right ("Value", "Status", "Source timestamp" and "Server timestamp") update.

But:
If I press "Read", only "Server timestamp" updates while "Value", "Status" and "Source timestamp" doesn't update and preserve the old value.
I receive no exception.

If "EasyOpcUADemo" is subscribed, my application read the variables (with "Read" method) without problem.

Have you any idea?
What could be the problem?

Thank you!