Dear All,

I try to establish a communication between a PLC (TIA 1515) and a service Windows by using a function TCON. 

But after sometime i loose the connection and i have the following error (80A3) ... ID is used by a connection created by the user program .

I try with several ID (Which are not used) , but the problem is still present.

Someone have a solution ?

Thanks Folks ( Please avoid the click on F1, i did it already thanks)

Hi,

Maybe this example will be helpful
Basic Examples for Open User Communication (OUC)

Did you get a solution for this behavior?

Best regards