Specify the platform-specific serial port name
You configure Port to be the name of a serial port on your platform. Port specifies the physical port associated with the object and the device.
When you create a serial port object, Port is automatically assigned the port name specified for the serial function.
You can configure Port only when the object is disconnected from the device. You disconnect an object with the fclose function. A disconnected object has a Status property value of closed.
Suppose you create a serial port object associated with serial port COM1.
s = serial('COM1');
The value of the Port property is COM1.
s.Port ans = COM1