SerialPortWin32 contains properties that describe how a serial port (RS-232 or RS-485) on a Win32-based host is being used
in software as COMn. Each one is a child of that host’s SerialPortService (SerialPortPlatformServiceWin32). Properties are as follows:
-
Owner — The driver network or function currently associated with that COM port, for example, “
ModbusSlaveNetwork” or “none”. -
Os Port Name — How the port is known to the Windows operating system, e.g.
COM1orCOM3. -
Port Index — Unique serial port index number, starting with 0 for COM1.