Yes, for relays with the RS485 port (e.g., 7SJ64 via the rear terminal). However, you must manually map the COM port number in Windows Device Manager to COM1-COM4, as DIGSI 4 often struggles with COM numbers above 10.

Aris turned back to the keyboard. He wasn't just an engineer anymore; he was a digital archaeologist.

Aris shook his head. "The relay is a SIPROTEC 7SJ64. It’s old. The firmware is legacy. My modern DIGSI 5 installation won’t even talk to it. It sees the device as a 'Foreign Object'."

: Windows 10 Pro/Enterprise (64-bit), Windows 7 SP1 (32/64-bit), and Windows Server 2008/2012 R2.