AutoGen_4020818

Now my idea was to try this simple application with the physical HMI while still using PLCsim but TIA portal doesn't allow me to have more than one device online. 

 As mentioned before, you can realize this with standard Plcsim and Nettoplcsim as additional software. It works with classic Plcsim and Plcsim for S7-1200 or 1500 controllers. In your case, set the IP-address of your PC to the IP address the Plc would have. Then restart your PC, before starting any Siemens software, start Nettoplcsim with admin rights and let it capture the Port 102 from Siemens service, let Nettoplcsim open in background. Start TIA portal and open your project, start Plcsim and download your project. Configure Nettoplcsim to connect to Plcsim, and start Nettoplcsim server.