I have a isolated machine with a 1212C PLC and a TP1200 Comfort panel, with his own TIA Portal V16 project.

Now the client wants to integrate in this panel screens from other projects, to control other machines from it.

For privacy questions I don't have access to the full project for this other machines (TIA Portal V16 too). The client gave me a project with a TP1200 Comfort (only the HMI). The variables are there, but all the connections in this project are broken (the client deleted all components except the required panel).

The first thing I thought was to implement a device proxy, but as far as I know this only works with 300/400 PLCs.

¿What's the best way to add screens connected to other PLCs without being integrated? ¿Device proxy? ¿Dummy PLCs with the same configuration in my project? ¿any other solution?

Any help will be appreciated.